summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--Documentation/laptops/thinkpad-acpi.txt1
-rw-r--r--MAINTAINERS7
-rw-r--r--drivers/platform/x86/Kconfig11
-rw-r--r--drivers/platform/x86/Makefile1
-rw-r--r--drivers/platform/x86/acer-wmi.c56
-rw-r--r--drivers/platform/x86/asus-nb-wmi.c23
-rw-r--r--drivers/platform/x86/asus-wmi.c29
-rw-r--r--drivers/platform/x86/asus-wmi.h1
-rw-r--r--drivers/platform/x86/dell-laptop.c26
-rw-r--r--drivers/platform/x86/dell-wmi.c12
-rw-r--r--drivers/platform/x86/intel-hid.c6
-rw-r--r--drivers/platform/x86/intel-smartconnect.c2
-rw-r--r--drivers/platform/x86/intel-vbtn.c35
-rw-r--r--drivers/platform/x86/intel_mid_thermal.c2
-rw-r--r--drivers/platform/x86/intel_pmc_core.c386
-rw-r--r--drivers/platform/x86/intel_pmc_core.h110
-rw-r--r--drivers/platform/x86/mlxcpld-hotplug.c515
-rw-r--r--drivers/platform/x86/panasonic-laptop.c2
-rw-r--r--drivers/platform/x86/thinkpad_acpi.c95
-rw-r--r--include/linux/platform_data/mlxcpld-hotplug.h99
20 files changed, 1346 insertions, 73 deletions
diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index 72a150d8f3df..ba2e7d254842 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -540,6 +540,7 @@ Events that are propagated by the driver to userspace:
0x6022 ALARM: a sensor is extremely hot
0x6030 System thermal table changed
0x6040 Nvidia Optimus/AC adapter related (TO BE VERIFIED)
+0x60C0 X1 Yoga 2016, Tablet mode status changed
Battery nearly empty alarms are a last resort attempt to get the
operating system to hibernate or shutdown cleanly (0x2313), or shutdown
diff --git a/MAINTAINERS b/MAINTAINERS
index 86f9583393ba..9d73040b846d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8045,6 +8045,13 @@ L: platform-driver-x86@vger.kernel.org
S: Supported
F: arch/x86/platform/mellanox/mlx-platform.c
+MELLANOX MLX CPLD HOTPLUG DRIVER
+M: Vadim Pasternak <vadimp@mellanox.com>
+L: platform-driver-x86@vger.kernel.org
+S: Supported
+F: drivers/platform/x86/mlxcpld-hotplug.c
+F: include/linux/platform_data/mlxcpld-hotplug.h
+
SOFT-ROCE DRIVER (rxe)
M: Moni Shoua <monis@mellanox.com>
L: linux-rdma@vger.kernel.org
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index b8a21d7b25d4..185376901d9c 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -1027,4 +1027,15 @@ config INTEL_TELEMETRY
used to get various SoC events and parameters
directly via debugfs files. Various tools may use
this interface for SoC state monitoring.
+
+config MLX_CPLD_PLATFORM
+ tristate "Mellanox platform hotplug driver support"
+ default n
+ depends on MLX_PLATFORM
+ select HWMON
+ select I2C
+ ---help---
+ This driver handles hot-plug events for the power suppliers, power
+ cables and fans on the wide range Mellanox IB and Ethernet systems.
+
endif # X86_PLATFORM_DEVICES
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 2efa86d2a1a7..1f06b6339cf7 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -71,3 +71,4 @@ obj-$(CONFIG_INTEL_TELEMETRY) += intel_telemetry_core.o \
intel_telemetry_pltdrv.o \
intel_telemetry_debugfs.o
obj-$(CONFIG_INTEL_PMC_CORE) += intel_pmc_core.o
+obj-$(CONFIG_MLX_CPLD_PLATFORM) += mlxcpld-hotplug.o
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 79d64ea00bfb..a66192f692e3 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -355,6 +355,32 @@ static const struct dmi_system_id acer_blacklist[] __initconst = {
{}
};
+static const struct dmi_system_id amw0_whitelist[] __initconst = {
+ {
+ .ident = "Acer",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ },
+ },
+ {
+ .ident = "Gateway",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
+ },
+ },
+ {
+ .ident = "Packard Bell",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
+ },
+ },
+ {}
+};
+
+/*
+ * This quirk table is only for Acer/Gateway/Packard Bell family
+ * that those machines are supported by acer-wmi driver.
+ */
static const struct dmi_system_id acer_quirks[] __initconst = {
{
.callback = dmi_matched,
@@ -464,6 +490,17 @@ static const struct dmi_system_id acer_quirks[] __initconst = {
},
.driver_data = &quirk_acer_travelmate_2490,
},
+ {}
+};
+
+/*
+ * This quirk list is for those non-acer machines that have AMW0_GUID1
+ * but supported by acer-wmi in past days. Keeping this quirk list here
+ * is only for backward compatible. Please do not add new machine to
+ * here anymore. Those non-acer machines should be supported by
+ * appropriate wmi drivers.
+ */
+static const struct dmi_system_id non_acer_quirks[] __initconst = {
{
.callback = dmi_matched,
.ident = "Fujitsu Siemens Amilo Li 1718",
@@ -598,6 +635,7 @@ static void __init find_quirks(void)
{
if (!force_series) {
dmi_check_system(acer_quirks);
+ dmi_check_system(non_acer_quirks);
} else if (force_series == 2490) {
quirks = &quirk_acer_travelmate_2490;
}
@@ -2108,6 +2146,24 @@ static int __init acer_wmi_init(void)
find_quirks();
/*
+ * The AMW0_GUID1 wmi is not only found on Acer family but also other
+ * machines like Lenovo, Fujitsu and Medion. In the past days,
+ * acer-wmi driver handled those non-Acer machines by quirks list.
+ * But actually acer-wmi driver was loaded on any machines that have
+ * AMW0_GUID1. This behavior is strange because those machines should
+ * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
+ * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
+ * should be in Acer/Gateway/Packard Bell white list, or it's already
+ * in the past quirk list.
+ */
+ if (wmi_has_guid(AMW0_GUID1) &&
+ !dmi_check_system(amw0_whitelist) &&
+ quirks == &quirk_unknown) {
+ pr_err("Unsupported machine has AMW0_GUID1, unable to load\n");
+ return -ENODEV;
+ }
+
+ /*
* Detect which ACPI-WMI interface we're using.
*/
if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index 26e4cbc34db8..5be4783e40d4 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -116,8 +116,13 @@ static struct quirk_entry quirk_asus_ux303ub = {
.wmi_backlight_native = true,
};
+static struct quirk_entry quirk_asus_x550lb = {
+ .xusb2pr = 0x01D9,
+};
+
static int dmi_matched(const struct dmi_system_id *dmi)
{
+ pr_info("Identified laptop model '%s'\n", dmi->ident);
quirks = dmi->driver_data;
return 1;
}
@@ -175,6 +180,15 @@ static const struct dmi_system_id asus_quirks[] = {
},
{
.callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. X45U",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X45U"),
+ },
+ .driver_data = &quirk_asus_wapf4,
+ },
+ {
+ .callback = dmi_matched,
.ident = "ASUSTeK COMPUTER INC. X456UA",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
@@ -398,6 +412,15 @@ static const struct dmi_system_id asus_quirks[] = {
},
.driver_data = &quirk_asus_ux303ub,
},
+ {
+ .callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. X550LB",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X550LB"),
+ },
+ .driver_data = &quirk_asus_x550lb,
+ },
{},
};
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index ce6ca31a2d09..43cb680adbb4 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -156,6 +156,9 @@ MODULE_LICENSE("GPL");
#define ASUS_FAN_CTRL_MANUAL 1
#define ASUS_FAN_CTRL_AUTO 2
+#define USB_INTEL_XUSB2PR 0xD0
+#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
+
struct bios_args {
u32 arg0;
u32 arg1;
@@ -1080,6 +1083,29 @@ exit:
return result;
}
+static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
+{
+ struct pci_dev *xhci_pdev;
+ u32 orig_ports_available;
+ u32 ports_available = asus->driver->quirks->xusb2pr;
+
+ xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI,
+ NULL);
+
+ if (!xhci_pdev)
+ return;
+
+ pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
+ &orig_ports_available);
+
+ pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
+ cpu_to_le32(ports_available));
+
+ pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
+ orig_ports_available, ports_available);
+}
+
/*
* Hwmon device
*/
@@ -2087,6 +2113,9 @@ static int asus_wmi_add(struct platform_device *pdev)
if (asus->driver->quirks->wmi_backlight_native)
acpi_video_set_dmi_backlight_type(acpi_backlight_native);
+ if (asus->driver->quirks->xusb2pr)
+ asus_wmi_set_xusb2pr(asus);
+
if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
err = asus_wmi_backlight_init(asus);
if (err && err != -ENODEV)
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index 0e19014e9f54..fdff626c3b51 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -53,6 +53,7 @@ struct quirk_entry {
* and let the ACPI interrupt to send out the key event.
*/
int no_display_toggle;
+ u32 xusb2pr;
bool (*i8042_filter)(unsigned char data, unsigned char str,
struct serio *serio);
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 2c2f02b2e08a..14392a01ab36 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -1904,38 +1904,40 @@ static enum led_brightness kbd_led_level_get(struct led_classdev *led_cdev)
return 0;
}
-static void kbd_led_level_set(struct led_classdev *led_cdev,
- enum led_brightness value)
+static int kbd_led_level_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
{
struct kbd_state state;
struct kbd_state new_state;
u16 num;
+ int ret;
if (kbd_get_max_level()) {
- if (kbd_get_state(&state))
- return;
+ ret = kbd_get_state(&state);
+ if (ret)
+ return ret;
new_state = state;
- if (kbd_set_level(&new_state, value))
- return;
- kbd_set_state_safe(&new_state, &state);
- return;
+ ret = kbd_set_level(&new_state, value);
+ if (ret)
+ return ret;
+ return kbd_set_state_safe(&new_state, &state);
}
if (kbd_get_valid_token_counts()) {
for (num = kbd_token_bits; num != 0 && value > 0; --value)
num &= num - 1; /* clear the first bit set */
if (num == 0)
- return;
- kbd_set_token_bit(ffs(num) - 1);
- return;
+ return 0;
+ return kbd_set_token_bit(ffs(num) - 1);
}
pr_warn("Keyboard brightness level control not supported\n");
+ return -ENXIO;
}
static struct led_classdev kbd_led = {
.name = "dell::kbd_backlight",
- .brightness_set = kbd_led_level_set,
+ .brightness_set_blocking = kbd_led_level_set,
.brightness_get = kbd_led_level_get,
.groups = kbd_led_groups,
};
diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index da2fe18162e1..75e637047d36 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -114,7 +114,7 @@ static const struct key_entry dell_wmi_keymap_type_0000[] __initconst = {
{ KE_IGNORE, 0xe00e, { KEY_RESERVED } },
/* Wifi Catcher */
- { KE_KEY, 0xe011, { KEY_PROG2 } },
+ { KE_KEY, 0xe011, { KEY_WLAN } },
/* Ambient light sensor toggle */
{ KE_IGNORE, 0xe013, { KEY_RESERVED } },
@@ -274,6 +274,16 @@ static const struct key_entry dell_wmi_keymap_type_0010[] __initconst = {
/* Stealth mode toggle */
{ KE_IGNORE, 0x155, { KEY_RESERVED } },
+
+ /* Rugged magnetic dock attach/detach events */
+ { KE_IGNORE, 0x156, { KEY_RESERVED } },
+ { KE_IGNORE, 0x157, { KEY_RESERVED } },
+
+ /* Rugged programmable (P1/P2/P3 keys) */
+ { KE_KEY, 0x850, { KEY_PROG1 } },
+ { KE_KEY, 0x851, { KEY_PROG2 } },
+ { KE_KEY, 0x852, { KEY_PROG3 } },
+
};
/*
diff --git a/drivers/platform/x86/intel-hid.c b/drivers/platform/x86/intel-hid.c
index 12dbb5063376..cb3ab2b212b1 100644
--- a/drivers/platform/x86/intel-hid.c
+++ b/drivers/platform/x86/intel-hid.c
@@ -69,7 +69,7 @@ static int intel_hid_set_enable(struct device *device, int enable)
arg0.integer.value = enable;
status = acpi_evaluate_object(ACPI_HANDLE(device), "HDSM", &args, NULL);
- if (!ACPI_SUCCESS(status)) {
+ if (ACPI_FAILURE(status)) {
dev_warn(device, "failed to %sable hotkeys\n",
enable ? "en" : "dis");
return -EIO;
@@ -148,7 +148,7 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
}
status = acpi_evaluate_integer(handle, "HDEM", NULL, &ev_index);
- if (!ACPI_SUCCESS(status)) {
+ if (ACPI_FAILURE(status)) {
dev_warn(&device->dev, "failed to get event index\n");
return;
}
@@ -167,7 +167,7 @@ static int intel_hid_probe(struct platform_device *device)
int err;
status = acpi_evaluate_integer(handle, "HDMM", NULL, &mode);
- if (!ACPI_SUCCESS(status)) {
+ if (ACPI_FAILURE(status)) {
dev_warn(&device->dev, "failed to read mode\n");
return -ENODEV;
}
diff --git a/drivers/platform/x86/intel-smartconnect.c b/drivers/platform/x86/intel-smartconnect.c
index 04cf5dffdfd9..bbe4c06c769f 100644
--- a/drivers/platform/x86/intel-smartconnect.c
+++ b/drivers/platform/x86/intel-smartconnect.c
@@ -29,7 +29,7 @@ static int smartconnect_acpi_init(struct acpi_device *acpi)
acpi_status status;
status = acpi_evaluate_integer(acpi->handle, "GAOS", NULL, &value);
- if (!ACPI_SUCCESS(status))
+ if (ACPI_FAILURE(status))
return -EINVAL;
if (value & 0x1) {
diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c
index 78080763df51..554e82ebe83c 100644
--- a/drivers/platform/x86/intel-vbtn.c
+++ b/drivers/platform/x86/intel-vbtn.c
@@ -49,34 +49,19 @@ static int intel_vbtn_input_setup(struct platform_device *device)
struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);
int ret;
- priv->input_dev = input_allocate_device();
+ priv->input_dev = devm_input_allocate_device(&device->dev);
if (!priv->input_dev)
return -ENOMEM;
ret = sparse_keymap_setup(priv->input_dev, intel_vbtn_keymap, NULL);
if (ret)
- goto err_free_device;
+ return ret;
priv->input_dev->dev.parent = &device->dev;
priv->input_dev->name = "Intel Virtual Button driver";
priv->input_dev->id.bustype = BUS_HOST;
- ret = input_register_device(priv->input_dev);
- if (ret)
- goto err_free_device;
-
- return 0;
-
-err_free_device:
- input_free_device(priv->input_dev);
- return ret;
-}
-
-static void intel_vbtn_input_destroy(struct platform_device *device)
-{
- struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);
-
- input_unregister_device(priv->input_dev);
+ return input_register_device(priv->input_dev);
}
static void notify_handler(acpi_handle handle, u32 event, void *context)
@@ -97,7 +82,7 @@ static int intel_vbtn_probe(struct platform_device *device)
int err;
status = acpi_evaluate_object(handle, "VBDL", NULL, NULL);
- if (!ACPI_SUCCESS(status)) {
+ if (ACPI_FAILURE(status)) {
dev_warn(&device->dev, "failed to read Intel Virtual Button driver\n");
return -ENODEV;
}
@@ -117,24 +102,16 @@ static int intel_vbtn_probe(struct platform_device *device)
ACPI_DEVICE_NOTIFY,
notify_handler,
device);
- if (ACPI_FAILURE(status)) {
- err = -EBUSY;
- goto err_remove_input;
- }
+ if (ACPI_FAILURE(status))
+ return -EBUSY;
return 0;
-
-err_remove_input:
- intel_vbtn_input_destroy(device);
-
- return err;
}
static int intel_vbtn_remove(struct platform_device *device)
{
acpi_handle handle = ACPI_HANDLE(&device->dev);
- intel_vbtn_input_destroy(device);
acpi_remove_notify_handler(handle, ACPI_DEVICE_NOTIFY, notify_handler);
/*
diff --git a/drivers/platform/x86/intel_mid_thermal.c b/drivers/platform/x86/intel_mid_thermal.c
index 9f713b832ba3..0df3c9d37509 100644
--- a/drivers/platform/x86/intel_mid_thermal.c
+++ b/drivers/platform/x86/intel_mid_thermal.c
@@ -415,6 +415,7 @@ static struct thermal_device_info *initialize_sensor(int index)
return td_info;
}
+#ifdef CONFIG_PM_SLEEP
/**
* mid_thermal_resume - resume routine
* @dev: device structure
@@ -442,6 +443,7 @@ static int mid_thermal_suspend(struct device *dev)
*/
return configure_adc(0);
}
+#endif
static SIMPLE_DEV_PM_OPS(mid_thermal_pm,
mid_thermal_suspend, mid_thermal_resume);
diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c
index e8b1b836ca2d..b130b8c9b9d7 100644
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@ -19,10 +19,12 @@
*/
#include <linux/debugfs.h>
+#include <linux/delay.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/pci.h>
+#include <linux/uaccess.h>
#include <asm/cpu_device_id.h>
#include <asm/intel-family.h>
@@ -32,16 +34,106 @@
static struct pmc_dev pmc;
+static const struct pmc_bit_map spt_pll_map[] = {
+ {"MIPI PLL", SPT_PMC_BIT_MPHY_CMN_LANE0},
+ {"GEN2 USB2PCIE2 PLL", SPT_PMC_BIT_MPHY_CMN_LANE1},
+ {"DMIPCIE3 PLL", SPT_PMC_BIT_MPHY_CMN_LANE2},
+ {"SATA PLL", SPT_PMC_BIT_MPHY_CMN_LANE3},
+ {},
+};
+
+static const struct pmc_bit_map spt_mphy_map[] = {
+ {"MPHY CORE LANE 0", SPT_PMC_BIT_MPHY_LANE0},
+ {"MPHY CORE LANE 1", SPT_PMC_BIT_MPHY_LANE1},
+ {"MPHY CORE LANE 2", SPT_PMC_BIT_MPHY_LANE2},
+ {"MPHY CORE LANE 3", SPT_PMC_BIT_MPHY_LANE3},
+ {"MPHY CORE LANE 4", SPT_PMC_BIT_MPHY_LANE4},
+ {"MPHY CORE LANE 5", SPT_PMC_BIT_MPHY_LANE5},
+ {"MPHY CORE LANE 6", SPT_PMC_BIT_MPHY_LANE6},
+ {"MPHY CORE LANE 7", SPT_PMC_BIT_MPHY_LANE7},
+ {"MPHY CORE LANE 8", SPT_PMC_BIT_MPHY_LANE8},
+ {"MPHY CORE LANE 9", SPT_PMC_BIT_MPHY_LANE9},
+ {"MPHY CORE LANE 10", SPT_PMC_BIT_MPHY_LANE10},
+ {"MPHY CORE LANE 11", SPT_PMC_BIT_MPHY_LANE11},
+ {"MPHY CORE LANE 12", SPT_PMC_BIT_MPHY_LANE12},
+ {"MPHY CORE LANE 13", SPT_PMC_BIT_MPHY_LANE13},
+ {"MPHY CORE LANE 14", SPT_PMC_BIT_MPHY_LANE14},
+ {"MPHY CORE LANE 15", SPT_PMC_BIT_MPHY_LANE15},
+ {},
+};
+
+static const struct pmc_bit_map spt_pfear_map[] = {
+ {"PMC", SPT_PMC_BIT_PMC},
+ {"OPI-DMI", SPT_PMC_BIT_OPI},
+ {"SPI / eSPI", SPT_PMC_BIT_SPI},
+ {"XHCI", SPT_PMC_BIT_XHCI},
+ {"SPA", SPT_PMC_BIT_SPA},
+ {"SPB", SPT_PMC_BIT_SPB},
+ {"SPC", SPT_PMC_BIT_SPC},
+ {"GBE", SPT_PMC_BIT_GBE},
+ {"SATA", SPT_PMC_BIT_SATA},
+ {"HDA-PGD0", SPT_PMC_BIT_HDA_PGD0},
+ {"HDA-PGD1", SPT_PMC_BIT_HDA_PGD1},
+ {"HDA-PGD2", SPT_PMC_BIT_HDA_PGD2},
+ {"HDA-PGD3", SPT_PMC_BIT_HDA_PGD3},
+ {"RSVD", SPT_PMC_BIT_RSVD_0B},
+ {"LPSS", SPT_PMC_BIT_LPSS},
+ {"LPC", SPT_PMC_BIT_LPC},
+ {"SMB", SPT_PMC_BIT_SMB},
+ {"ISH", SPT_PMC_BIT_ISH},
+ {"P2SB", SPT_PMC_BIT_P2SB},
+ {"DFX", SPT_PMC_BIT_DFX},
+ {"SCC", SPT_PMC_BIT_SCC},
+ {"RSVD", SPT_PMC_BIT_RSVD_0C},
+ {"FUSE", SPT_PMC_BIT_FUSE},
+ {"CAMERA", SPT_PMC_BIT_CAMREA},
+ {"RSVD", SPT_PMC_BIT_RSVD_0D},
+ {"USB3-OTG", SPT_PMC_BIT_USB3_OTG},
+ {"EXI", SPT_PMC_BIT_EXI},
+ {"CSE", SPT_PMC_BIT_CSE},
+ {"CSME_KVM", SPT_PMC_BIT_CSME_KVM},
+ {"CSME_PMT", SPT_PMC_BIT_CSME_PMT},
+ {"CSME_CLINK", SPT_PMC_BIT_CSME_CLINK},
+ {"CSME_PTIO", SPT_PMC_BIT_CSME_PTIO},
+ {"CSME_USBR", SPT_PMC_BIT_CSME_USBR},
+ {"CSME_SUSRAM", SPT_PMC_BIT_CSME_SUSRAM},
+ {"CSME_SMT", SPT_PMC_BIT_CSME_SMT},
+ {"RSVD", SPT_PMC_BIT_RSVD_1A},
+ {"CSME_SMS2", SPT_PMC_BIT_CSME_SMS2},
+ {"CSME_SMS1", SPT_PMC_BIT_CSME_SMS1},
+ {"CSME_RTC", SPT_PMC_BIT_CSME_RTC},
+ {"CSME_PSF", SPT_PMC_BIT_CSME_PSF},
+ {},
+};
+
+static const struct pmc_reg_map spt_reg_map = {
+ .pfear_sts = spt_pfear_map,
+ .mphy_sts = spt_mphy_map,
+ .pll_sts = spt_pll_map,
+};
+
static const struct pci_device_id pmc_pci_ids[] = {
- { PCI_VDEVICE(INTEL, SPT_PMC_PCI_DEVICE_ID), (kernel_ulong_t)NULL },
+ { PCI_VDEVICE(INTEL, SPT_PMC_PCI_DEVICE_ID),
+ (kernel_ulong_t)&spt_reg_map },
{ 0, },
};
+static inline u8 pmc_core_reg_read_byte(struct pmc_dev *pmcdev, int offset)
+{
+ return readb(pmcdev->regbase + offset);
+}
+
static inline u32 pmc_core_reg_read(struct pmc_dev *pmcdev, int reg_offset)
{
return readl(pmcdev->regbase + reg_offset);
}
+static inline void pmc_core_reg_write(struct pmc_dev *pmcdev, int
+ reg_offset, u32 val)
+{
+ writel(val, pmcdev->regbase + reg_offset);
+}
+
static inline u32 pmc_core_adjust_slp_s0_step(u32 value)
{
return value * SPT_PMC_SLP_S0_RES_COUNTER_STEP;
@@ -90,6 +182,245 @@ static int pmc_core_dev_state_get(void *data, u64 *val)
DEFINE_DEBUGFS_ATTRIBUTE(pmc_core_dev_state, pmc_core_dev_state_get, NULL, "%llu\n");
+static int pmc_core_check_read_lock_bit(void)
+{
+ struct pmc_dev *pmcdev = &pmc;
+ u32 value;
+
+ value = pmc_core_reg_read(pmcdev, SPT_PMC_PM_CFG_OFFSET);
+ return test_bit(SPT_PMC_READ_DISABLE_BIT,
+ (unsigned long *)&value);
+}
+
+#if IS_ENABLED(CONFIG_DEBUG_FS)
+static void pmc_core_display_map(struct seq_file *s, int index,
+ u8 pf_reg, const struct pmc_bit_map *pf_map)
+{
+ seq_printf(s, "PCH IP: %-2d - %-32s\tState: %s\n",
+ index, pf_map[index].name,
+ pf_map[index].bit_mask & pf_reg ? "Off" : "On");
+}
+
+static int pmc_core_ppfear_sts_show(struct seq_file *s, void *unused)
+{
+ struct pmc_dev *pmcdev = s->private;
+ const struct pmc_bit_map *map = pmcdev->map->pfear_sts;
+ u8 pf_regs[NUM_ENTRIES];
+ int index, iter;
+
+ iter = SPT_PMC_XRAM_PPFEAR0A;
+
+ for (index = 0; index < NUM_ENTRIES; index++, iter++)
+ pf_regs[index] = pmc_core_reg_read_byte(pmcdev, iter);
+
+ for (index = 0; map[index].name; index++)
+ pmc_core_display_map(s, index, pf_regs[index / 8], map);
+
+ return 0;
+}
+
+static int pmc_core_ppfear_sts_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pmc_core_ppfear_sts_show, inode->i_private);
+}
+
+static const struct file_operations pmc_core_ppfear_ops = {
+ .open = pmc_core_ppfear_sts_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+/* This function should return link status, 0 means ready */
+static int pmc_core_mtpmc_link_status(void)
+{
+ struct pmc_dev *pmcdev = &pmc;
+ u32 value;
+
+ value = pmc_core_reg_read(pmcdev, SPT_PMC_PM_STS_OFFSET);
+ return test_bit(SPT_PMC_MSG_FULL_STS_BIT,
+ (unsigned long *)&value);
+}
+
+static int pmc_core_send_msg(u32 *addr_xram)
+{
+ struct pmc_dev *pmcdev = &pmc;
+ u32 dest;
+ int timeout;
+
+ for (timeout = NUM_RETRIES; timeout > 0; timeout--) {
+ if (pmc_core_mtpmc_link_status() == 0)
+ break;
+ msleep(5);
+ }
+
+ if (timeout <= 0 && pmc_core_mtpmc_link_status())
+ return -EBUSY;
+
+ dest = (*addr_xram & MTPMC_MASK) | (1U << 1);
+ pmc_core_reg_write(pmcdev, SPT_PMC_MTPMC_OFFSET, dest);
+ return 0;
+}
+
+static int pmc_core_mphy_pg_sts_show(struct seq_file *s, void *unused)
+{
+ struct pmc_dev *pmcdev = s->private;
+ const struct pmc_bit_map *map = pmcdev->map->mphy_sts;
+ u32 mphy_core_reg_low, mphy_core_reg_high;
+ u32 val_low, val_high;
+ int index, err = 0;
+
+ if (pmcdev->pmc_xram_read_bit) {
+ seq_puts(s, "Access denied: please disable PMC_READ_DISABLE setting in BIOS.");
+ return 0;
+ }
+
+ mphy_core_reg_low = (SPT_PMC_MPHY_CORE_STS_0 << 16);
+ mphy_core_reg_high = (SPT_PMC_MPHY_CORE_STS_1 << 16);
+
+ mutex_lock(&pmcdev->lock);
+
+ if (pmc_core_send_msg(&mphy_core_reg_low) != 0) {
+ err = -EBUSY;
+ goto out_unlock;
+ }
+
+ msleep(10);
+ val_low = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);
+
+ if (pmc_core_send_msg(&mphy_core_reg_high) != 0) {
+ err = -EBUSY;
+ goto out_unlock;
+ }
+
+ msleep(10);
+ val_high = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);
+
+ for (index = 0; map[index].name && index < 8; index++) {
+ seq_printf(s, "%-32s\tState: %s\n",
+ map[index].name,
+ map[index].bit_mask & val_low ? "Not power gated" :
+ "Power gated");
+ }
+
+ for (index = 8; map[index].name; index++) {
+ seq_printf(s, "%-32s\tState: %s\n",
+ map[index].name,
+ map[index].bit_mask & val_high ? "Not power gated" :
+ "Power gated");
+ }
+
+out_unlock:
+ mutex_unlock(&pmcdev->lock);
+ return err;
+}
+
+static int pmc_core_mphy_pg_sts_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pmc_core_mphy_pg_sts_show, inode->i_private);
+}
+
+static const struct file_operations pmc_core_mphy_pg_ops = {
+ .open = pmc_core_mphy_pg_sts_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int pmc_core_pll_show(struct seq_file *s, void *unused)
+{
+ struct pmc_dev *pmcdev = s->private;
+ const struct pmc_bit_map *map = pmcdev->map->pll_sts;
+ u32 mphy_common_reg, val;
+ int index, err = 0;
+
+ if (pmcdev->pmc_xram_read_bit) {
+ seq_puts(s, "Access denied: please disable PMC_READ_DISABLE setting in BIOS.");
+ return 0;
+ }
+
+ mphy_common_reg = (SPT_PMC_MPHY_COM_STS_0 << 16);
+ mutex_lock(&pmcdev->lock);
+
+ if (pmc_core_send_msg(&mphy_common_reg) != 0) {
+ err = -EBUSY;
+ goto out_unlock;
+ }
+
+ /* Observed PMC HW response latency for MTPMC-MFPMC is ~10 ms */
+ msleep(10);
+ val = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);
+
+ for (index = 0; map[index].name ; index++) {
+ seq_printf(s, "%-32s\tState: %s\n",
+ map[index].name,
+ map[index].bit_mask & val ? "Active" : "Idle");
+ }
+
+out_unlock:
+ mutex_unlock(&pmcdev->lock);
+ return err;
+}
+
+static int pmc_core_pll_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pmc_core_pll_show, inode->i_private);
+}
+
+static const struct file_operations pmc_core_pll_ops = {
+ .open = pmc_core_pll_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static ssize_t pmc_core_ltr_ignore_write(struct file *file, const char __user
+*userbuf, size_t count, loff_t *ppos)
+{
+ struct pmc_dev *pmcdev = &pmc;
+ u32 val, buf_size, fd;
+ int err = 0;
+
+ buf_size = count < 64 ? count : 64;
+ mutex_lock(&pmcdev->lock);
+
+ if (kstrtou32_from_user(userbuf, buf_size, 10, &val)) {
+ err = -EFAULT;
+ goto out_unlock;
+ }
+
+ if (val > NUM_IP_IGN_ALLOWED) {
+ err = -EINVAL;
+ goto out_unlock;
+ }
+
+ fd = pmc_core_reg_read(pmcdev, SPT_PMC_LTR_IGNORE_OFFSET);
+ fd |= (1U << val);
+ pmc_core_reg_write(pmcdev, SPT_PMC_LTR_IGNORE_OFFSET, fd);
+
+out_unlock:
+ mutex_unlock(&pmcdev->lock);
+ return err == 0 ? count : err;
+}
+
+static int pmc_core_ltr_ignore_show(struct seq_file *s, void *unused)
+{
+ return 0;
+}
+
+static int pmc_core_ltr_ignore_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pmc_core_ltr_ignore_show, inode->i_private);
+}
+
+static const struct file_operations pmc_core_ltr_ignore_ops = {
+ .open = pmc_core_ltr_ignore_open,
+ .read = seq_read,
+ .write = pmc_core_ltr_ignore_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
static void pmc_core_dbgfs_unregister(struct pmc_dev *pmcdev)
{
debugfs_remove_recursive(pmcdev->dbgfs_dir);
@@ -106,20 +437,59 @@ static int pmc_core_dbgfs_register(struct pmc_dev *pmcdev)
pmcdev->dbgfs_dir = dir;
file = debugfs_create_file("slp_s0_residency_usec", S_IFREG | S_IRUGO,
dir, pmcdev, &pmc_core_dev_state);
+ if (!file)
+ goto err;
- if (!file) {
- pmc_core_dbgfs_unregister(pmcdev);
- return -ENODEV;
- }
+ file = debugfs_create_file("pch_ip_power_gating_status",
+ S_IFREG | S_IRUGO, dir, pmcdev,
+ &pmc_core_ppfear_ops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("mphy_core_lanes_power_gating_status",
+ S_IFREG | S_IRUGO, dir, pmcdev,
+ &pmc_core_mphy_pg_ops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("pll_status",
+ S_IFREG | S_IRUGO, dir, pmcdev,
+ &pmc_core_pll_ops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("ltr_ignore",
+ S_IFREG | S_IRUGO, dir, pmcdev,
+ &pmc_core_ltr_ignore_ops);
+
+ if (!file)
+ goto err;
return 0;
+err:
+ pmc_core_dbgfs_unregister(pmcdev);
+ return -ENODEV;
}
+#else
+static inline int pmc_core_dbgfs_register(struct pmc_dev *pmcdev)
+{
+ return 0;
+}
+
+static inline void pmc_core_dbgfs_unregister(struct pmc_dev *pmcdev)
+{
+}
+#endif /* CONFIG_DEBUG_FS */
static const struct x86_cpu_id intel_pmc_core_ids[] = {
{ X86_VENDOR_INTEL, 6, INTEL_FAM6_SKYLAKE_MOBILE, X86_FEATURE_MWAIT,
(kernel_ulong_t)NULL},
{ X86_VENDOR_INTEL, 6, INTEL_FAM6_SKYLAKE_DESKTOP, X86_FEATURE_MWAIT,
(kernel_ulong_t)NULL},
+ { X86_VENDOR_INTEL, 6, INTEL_FAM6_KABYLAKE_MOBILE, X86_FEATURE_MWAIT,
+ (kernel_ulong_t)NULL},
+ { X86_VENDOR_INTEL, 6, INTEL_FAM6_KABYLAKE_DESKTOP, X86_FEATURE_MWAIT,
+ (kernel_ulong_t)NULL},
{}
};
@@ -128,6 +498,7 @@ static int pmc_core_probe(struct pci_dev *dev, const struct pci_device_id *id)
struct device *ptr_dev = &dev->dev;
struct pmc_dev *pmcdev = &pmc;
const struct x86_cpu_id *cpu_id;
+ const struct pmc_reg_map *map = (struct pmc_reg_map *)id->driver_data;
int err;
cpu_id = x86_match_cpu(intel_pmc_core_ids);
@@ -149,6 +520,7 @@ static int pmc_core_probe(struct pci_dev *dev, const struct pci_device_id *id)
dev_dbg(&dev->dev, "PMC Core: failed to read PCI config space.\n");
return err;
}
+ pmcdev->base_addr &= PMC_BASE_ADDR_MASK;
dev_dbg(&dev->dev, "PMC Core: PWRMBASE is %#x\n", pmcdev->base_addr);
pmcdev->regbase = devm_ioremap_nocache(ptr_dev,
@@ -159,6 +531,10 @@ static int pmc_core_probe(struct pci_dev *dev, const struct pci_device_id *id)
return -ENOMEM;
}
+ mutex_init(&pmcdev->lock);
+ pmcdev->pmc_xram_read_bit = pmc_core_check_read_lock_bit();
+ pmcdev->map = map;
+
err = pmc_core_dbgfs_register(pmcdev);
if (err < 0)
dev_warn(&dev->dev, "PMC Core: debugfs register failed.\n");
diff --git a/drivers/platform/x86/intel_pmc_core.h b/drivers/platform/x86/intel_pmc_core.h
index e3f671f4d122..5a48e7728479 100644
--- a/drivers/platform/x86/intel_pmc_core.h
+++ b/drivers/platform/x86/intel_pmc_core.h
@@ -26,8 +26,111 @@
#define SPT_PMC_BASE_ADDR_OFFSET 0x48
#define SPT_PMC_SLP_S0_RES_COUNTER_OFFSET 0x13c
-#define SPT_PMC_MMIO_REG_LEN 0x100
+#define SPT_PMC_PM_CFG_OFFSET 0x18
+#define SPT_PMC_PM_STS_OFFSET 0x1c
+#define SPT_PMC_MTPMC_OFFSET 0x20
+#define SPT_PMC_MFPMC_OFFSET 0x38
+#define SPT_PMC_LTR_IGNORE_OFFSET 0x30C
+#define SPT_PMC_MPHY_CORE_STS_0 0x1143
+#define SPT_PMC_MPHY_CORE_STS_1 0x1142
+#define SPT_PMC_MPHY_COM_STS_0 0x1155
+#define SPT_PMC_MMIO_REG_LEN 0x1000
#define SPT_PMC_SLP_S0_RES_COUNTER_STEP 0x64
+#define PMC_BASE_ADDR_MASK ~(SPT_PMC_MMIO_REG_LEN - 1)
+#define MTPMC_MASK 0xffff0000
+#define NUM_ENTRIES 5
+#define SPT_PMC_READ_DISABLE_BIT 0x16
+#define SPT_PMC_MSG_FULL_STS_BIT 0x18
+#define NUM_RETRIES 100
+#define NUM_IP_IGN_ALLOWED 17
+
+/* Sunrise Point: PGD PFET Enable Ack Status Registers */
+enum ppfear_regs {
+ SPT_PMC_XRAM_PPFEAR0A = 0x590,
+ SPT_PMC_XRAM_PPFEAR0B,
+ SPT_PMC_XRAM_PPFEAR0C,
+ SPT_PMC_XRAM_PPFEAR0D,
+ SPT_PMC_XRAM_PPFEAR1A,
+};
+
+#define SPT_PMC_BIT_PMC BIT(0)
+#define SPT_PMC_BIT_OPI BIT(1)
+#define SPT_PMC_BIT_SPI BIT(2)
+#define SPT_PMC_BIT_XHCI BIT(3)
+#define SPT_PMC_BIT_SPA BIT(4)
+#define SPT_PMC_BIT_SPB BIT(5)
+#define SPT_PMC_BIT_SPC BIT(6)
+#define SPT_PMC_BIT_GBE BIT(7)
+
+#define SPT_PMC_BIT_SATA BIT(0)
+#define SPT_PMC_BIT_HDA_PGD0 BIT(1)
+#define SPT_PMC_BIT_HDA_PGD1 BIT(2)
+#define SPT_PMC_BIT_HDA_PGD2 BIT(3)
+#define SPT_PMC_BIT_HDA_PGD3 BIT(4)
+#define SPT_PMC_BIT_RSVD_0B BIT(5)
+#define SPT_PMC_BIT_LPSS BIT(6)
+#define SPT_PMC_BIT_LPC BIT(7)
+
+#define SPT_PMC_BIT_SMB BIT(0)
+#define SPT_PMC_BIT_ISH BIT(1)
+#define SPT_PMC_BIT_P2SB BIT(2)
+#define SPT_PMC_BIT_DFX BIT(3)
+#define SPT_PMC_BIT_SCC BIT(4)
+#define SPT_PMC_BIT_RSVD_0C BIT(5)
+#define SPT_PMC_BIT_FUSE BIT(6)
+#define SPT_PMC_BIT_CAMREA BIT(7)
+
+#define SPT_PMC_BIT_RSVD_0D BIT(0)
+#define SPT_PMC_BIT_USB3_OTG BIT(1)
+#define SPT_PMC_BIT_EXI BIT(2)
+#define SPT_PMC_BIT_CSE BIT(3)
+#define SPT_PMC_BIT_CSME_KVM BIT(4)
+#define SPT_PMC_BIT_CSME_PMT BIT(5)
+#define SPT_PMC_BIT_CSME_CLINK BIT(6)
+#define SPT_PMC_BIT_CSME_PTIO BIT(7)
+
+#define SPT_PMC_BIT_CSME_USBR BIT(0)
+#define SPT_PMC_BIT_CSME_SUSRAM BIT(1)
+#define SPT_PMC_BIT_CSME_SMT BIT(2)
+#define SPT_PMC_BIT_RSVD_1A BIT(3)
+#define SPT_PMC_BIT_CSME_SMS2 BIT(4)
+#define SPT_PMC_BIT_CSME_SMS1 BIT(5)
+#define SPT_PMC_BIT_CSME_RTC BIT(6)
+#define SPT_PMC_BIT_CSME_PSF BIT(7)
+
+#define SPT_PMC_BIT_MPHY_LANE0 BIT(0)
+#define SPT_PMC_BIT_MPHY_LANE1 BIT(1)
+#define SPT_PMC_BIT_MPHY_LANE2 BIT(2)
+#define SPT_PMC_BIT_MPHY_LANE3 BIT(3)
+#define SPT_PMC_BIT_MPHY_LANE4 BIT(4)
+#define SPT_PMC_BIT_MPHY_LANE5 BIT(5)
+#define SPT_PMC_BIT_MPHY_LANE6 BIT(6)
+#define SPT_PMC_BIT_MPHY_LANE7 BIT(7)
+
+#define SPT_PMC_BIT_MPHY_LANE8 BIT(0)
+#define SPT_PMC_BIT_MPHY_LANE9 BIT(1)
+#define SPT_PMC_BIT_MPHY_LANE10 BIT(2)
+#define SPT_PMC_BIT_MPHY_LANE11 BIT(3)
+#define SPT_PMC_BIT_MPHY_LANE12 BIT(4)
+#define SPT_PMC_BIT_MPHY_LANE13 BIT(5)
+#define SPT_PMC_BIT_MPHY_LANE14 BIT(6)
+#define SPT_PMC_BIT_MPHY_LANE15 BIT(7)
+
+#define SPT_PMC_BIT_MPHY_CMN_LANE0 BIT(0)
+#define SPT_PMC_BIT_MPHY_CMN_LANE1 BIT(1)
+#define SPT_PMC_BIT_MPHY_CMN_LANE2 BIT(2)
+#define SPT_PMC_BIT_MPHY_CMN_LANE3 BIT(3)
+
+struct pmc_bit_map {
+ const char *name;
+ u32 bit_mask;
+};
+
+struct pmc_reg_map {
+ const struct pmc_bit_map *pfear_sts;
+ const struct pmc_bit_map *mphy_sts;
+ const struct pmc_bit_map *pll_sts;
+};
/**
* struct pmc_dev - pmc device structure
@@ -43,8 +146,13 @@
struct pmc_dev {
u32 base_addr;
void __iomem *regbase;
+ const struct pmc_reg_map *map;
+#if IS_ENABLED(CONFIG_DEBUG_FS)
struct dentry *dbgfs_dir;
+#endif /* CONFIG_DEBUG_FS */
bool has_slp_s0_res;
+ int pmc_xram_read_bit;
+ struct mutex lock; /* generic mutex lock for PMC Core */
};
#endif /* PMC_CORE_H */
diff --git a/drivers/platform/x86/mlxcpld-hotplug.c b/drivers/platform/x86/mlxcpld-hotplug.c
new file mode 100644
index 000000000000..aff3686b3b37
--- /dev/null
+++ b/drivers/platform/x86/mlxcpld-hotplug.c
@@ -0,0 +1,515 @@
+/*
+ * drivers/platform/x86/mlxcpld-hotplug.c
+ * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2016 Vadim Pasternak <vadimp@mellanox.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/bitops.h>
+#include <linux/device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_data/mlxcpld-hotplug.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/workqueue.h>
+
+/* Offset of event and mask registers from status register */
+#define MLXCPLD_HOTPLUG_EVENT_OFF 1
+#define MLXCPLD_HOTPLUG_MASK_OFF 2
+#define MLXCPLD_HOTPLUG_AGGR_MASK_OFF 1
+
+#define MLXCPLD_HOTPLUG_ATTRS_NUM 8
+
+/**
+ * enum mlxcpld_hotplug_attr_type - sysfs attributes for hotplug events:
+ * @MLXCPLD_HOTPLUG_ATTR_TYPE_PSU: power supply unit attribute;
+ * @MLXCPLD_HOTPLUG_ATTR_TYPE_PWR: power cable attribute;
+ * @MLXCPLD_HOTPLUG_ATTR_TYPE_FAN: FAN drawer attribute;
+ */
+enum mlxcpld_hotplug_attr_type {
+ MLXCPLD_HOTPLUG_ATTR_TYPE_PSU,
+ MLXCPLD_HOTPLUG_ATTR_TYPE_PWR,
+ MLXCPLD_HOTPLUG_ATTR_TYPE_FAN,
+};
+
+/**
+ * struct mlxcpld_hotplug_priv_data - platform private data:
+ * @irq: platform interrupt number;
+ * @pdev: platform device;
+ * @plat: platform data;
+ * @hwmon: hwmon device;
+ * @mlxcpld_hotplug_attr: sysfs attributes array;
+ * @mlxcpld_hotplug_dev_attr: sysfs sensor device attribute array;
+ * @group: sysfs attribute group;
+ * @groups: list of sysfs attribute group for hwmon registration;
+ * @dwork: delayed work template;
+ * @lock: spin lock;
+ * @aggr_cache: last value of aggregation register status;
+ * @psu_cache: last value of PSU register status;
+ * @pwr_cache: last value of power register status;
+ * @fan_cache: last value of FAN register status;
+ */
+struct mlxcpld_hotplug_priv_data {
+ int irq;
+ struct platform_device *pdev;
+ struct mlxcpld_hotplug_platform_data *plat;
+ struct device *hwmon;
+ struct attribute *mlxcpld_hotplug_attr[MLXCPLD_HOTPLUG_ATTRS_NUM + 1];
+ struct sensor_device_attribute_2
+ mlxcpld_hotplug_dev_attr[MLXCPLD_HOTPLUG_ATTRS_NUM];
+ struct attribute_group group;
+ const struct attribute_group *groups[2];
+ struct delayed_work dwork;
+ spinlock_t lock;
+ u8 aggr_cache;
+ u8 psu_cache;
+ u8 pwr_cache;
+ u8 fan_cache;
+};
+
+static ssize_t mlxcpld_hotplug_attr_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct mlxcpld_hotplug_priv_data *priv = platform_get_drvdata(pdev);
+ int index = to_sensor_dev_attr_2(attr)->index;
+ int nr = to_sensor_dev_attr_2(attr)->nr;
+ u8 reg_val = 0;
+
+ switch (nr) {
+ case MLXCPLD_HOTPLUG_ATTR_TYPE_PSU:
+ /* Bit = 0 : PSU is present. */
+ reg_val = !!!(inb(priv->plat->psu_reg_offset) & BIT(index));
+ break;
+
+ case MLXCPLD_HOTPLUG_ATTR_TYPE_PWR:
+ /* Bit = 1 : power cable is attached. */
+ reg_val = !!(inb(priv->plat->pwr_reg_offset) & BIT(index %
+ priv->plat->pwr_count));
+ break;
+
+ case MLXCPLD_HOTPLUG_ATTR_TYPE_FAN:
+ /* Bit = 0 : FAN is present. */
+ reg_val = !!!(inb(priv->plat->fan_reg_offset) & BIT(index %
+ priv->plat->fan_count));
+ break;
+ }
+
+ return sprintf(buf, "%u\n", reg_val);
+}
+
+#define PRIV_ATTR(i) priv->mlxcpld_hotplug_attr[i]
+#define PRIV_DEV_ATTR(i) priv->mlxcpld_hotplug_dev_attr[i]
+static int mlxcpld_hotplug_attr_init(struct mlxcpld_hotplug_priv_data *priv)
+{
+ int num_attrs = priv->plat->psu_count + priv->plat->pwr_count +
+ priv->plat->fan_count;
+ int i;
+
+ priv->group.attrs = devm_kzalloc(&priv->pdev->dev, num_attrs *
+ sizeof(struct attribute *),
+ GFP_KERNEL);
+ if (!priv->group.attrs)
+ return -ENOMEM;
+
+ for (i = 0; i < num_attrs; i++) {
+ PRIV_ATTR(i) = &PRIV_DEV_ATTR(i).dev_attr.attr;
+
+ if (i < priv->plat->psu_count) {
+ PRIV_ATTR(i)->name = devm_kasprintf(&priv->pdev->dev,
+ GFP_KERNEL, "psu%u", i + 1);
+ PRIV_DEV_ATTR(i).nr = MLXCPLD_HOTPLUG_ATTR_TYPE_PSU;
+ } else if (i < priv->plat->psu_count + priv->plat->pwr_count) {
+ PRIV_ATTR(i)->name = devm_kasprintf(&priv->pdev->dev,
+ GFP_KERNEL, "pwr%u", i %
+ priv->plat->pwr_count + 1);
+ PRIV_DEV_ATTR(i).nr = MLXCPLD_HOTPLUG_ATTR_TYPE_PWR;
+ } else {
+ PRIV_ATTR(i)->name = devm_kasprintf(&priv->pdev->dev,
+ GFP_KERNEL, "fan%u", i %
+ priv->plat->fan_count + 1);
+ PRIV_DEV_ATTR(i).nr = MLXCPLD_HOTPLUG_ATTR_TYPE_FAN;
+ }
+
+ if (!PRIV_ATTR(i)->name) {
+ dev_err(&priv->pdev->dev, "Memory allocation failed for sysfs attribute %d.\n",
+ i + 1);
+ return -ENOMEM;
+ }
+
+ PRIV_DEV_ATTR(i).dev_attr.attr.name = PRIV_ATTR(i)->name;
+ PRIV_DEV_ATTR(i).dev_attr.attr.mode = S_IRUGO;
+ PRIV_DEV_ATTR(i).dev_attr.show = mlxcpld_hotplug_attr_show;
+ PRIV_DEV_ATTR(i).index = i;
+ sysfs_attr_init(&PRIV_DEV_ATTR(i).dev_attr.attr);
+ }
+
+ priv->group.attrs = priv->mlxcpld_hotplug_attr;
+ priv->groups[0] = &priv->group;
+ priv->groups[1] = NULL;
+
+ return 0;
+}
+
+static int mlxcpld_hotplug_device_create(struct device *dev,
+ struct mlxcpld_hotplug_device *item)
+{
+ item->adapter = i2c_get_adapter(item->bus);
+ if (!item->adapter) {
+ dev_err(dev, "Failed to get adapter for bus %d\n",
+ item->bus);
+ return -EFAULT;
+ }
+
+ item->client = i2c_new_device(item->adapter, &item->brdinfo);
+ if (!item->client) {
+ dev_err(dev, "Failed to create client %s at bus %d at addr 0x%02x\n",
+ item->brdinfo.type, item->bus, item->brdinfo.addr);
+ i2c_put_adapter(item->adapter);
+ item->adapter = NULL;
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static void mlxcpld_hotplug_device_destroy(struct mlxcpld_hotplug_device *item)
+{
+ if (item->client) {
+ i2c_unregister_device(item->client);
+ item->client = NULL;
+ }
+
+ if (item->adapter) {
+ i2c_put_adapter(item->adapter);
+ item->adapter = NULL;
+ }
+}
+
+static inline void
+mlxcpld_hotplug_work_helper(struct device *dev,
+ struct mlxcpld_hotplug_device *item, u8 is_inverse,
+ u16 offset, u8 mask, u8 *cache)
+{
+ u8 val, asserted;
+ int bit;
+
+ /* Mask event. */
+ outb(0, offset + MLXCPLD_HOTPLUG_MASK_OFF);
+ /* Read status. */
+ val = inb(offset) & mask;
+ asserted = *cache ^ val;
+ *cache = val;
+
+ /*
+ * Validate if item related to received signal type is valid.
+ * It should never happen, excepted the situation when some
+ * piece of hardware is broken. In such situation just produce
+ * error message and return. Caller must continue to handle the
+ * signals from other devices if any.
+ */
+ if (unlikely(!item)) {
+ dev_err(dev, "False signal is received: register at offset 0x%02x, mask 0x%02x.\n",
+ offset, mask);
+ return;
+ }
+
+ for_each_set_bit(bit, (unsigned long *)&asserted, 8) {
+ if (val & BIT(bit)) {
+ if (is_inverse)
+ mlxcpld_hotplug_device_destroy(item + bit);
+ else
+ mlxcpld_hotplug_device_create(dev, item + bit);
+ } else {
+ if (is_inverse)
+ mlxcpld_hotplug_device_create(dev, item + bit);
+ else
+ mlxcpld_hotplug_device_destroy(item + bit);
+ }
+ }
+
+ /* Acknowledge event. */
+ outb(0, offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+ /* Unmask event. */
+ outb(mask, offset + MLXCPLD_HOTPLUG_MASK_OFF);
+}
+
+/*
+ * mlxcpld_hotplug_work_handler - performs traversing of CPLD interrupt
+ * registers according to the below hierarchy schema:
+ *
+ * Aggregation registers (status/mask)
+ * PSU registers: *---*
+ * *-----------------* | |
+ * |status/event/mask|----->| * |
+ * *-----------------* | |
+ * Power registers: | |
+ * *-----------------* | |
+ * |status/event/mask|----->| * |---> CPU
+ * *-----------------* | |
+ * FAN registers:
+ * *-----------------* | |
+ * |status/event/mask|----->| * |
+ * *-----------------* | |
+ * *---*
+ * In case some system changed are detected: FAN in/out, PSU in/out, power
+ * cable attached/detached, relevant device is created or destroyed.
+ */
+static void mlxcpld_hotplug_work_handler(struct work_struct *work)
+{
+ struct mlxcpld_hotplug_priv_data *priv = container_of(work,
+ struct mlxcpld_hotplug_priv_data, dwork.work);
+ u8 val, aggr_asserted;
+ unsigned long flags;
+
+ /* Mask aggregation event. */
+ outb(0, priv->plat->top_aggr_offset + MLXCPLD_HOTPLUG_AGGR_MASK_OFF);
+ /* Read aggregation status. */
+ val = inb(priv->plat->top_aggr_offset) & priv->plat->top_aggr_mask;
+ aggr_asserted = priv->aggr_cache ^ val;
+ priv->aggr_cache = val;
+
+ /* Handle PSU configuration changes. */
+ if (aggr_asserted & priv->plat->top_aggr_psu_mask)
+ mlxcpld_hotplug_work_helper(&priv->pdev->dev, priv->plat->psu,
+ 1, priv->plat->psu_reg_offset,
+ priv->plat->psu_mask,
+ &priv->psu_cache);
+
+ /* Handle power cable configuration changes. */
+ if (aggr_asserted & priv->plat->top_aggr_pwr_mask)
+ mlxcpld_hotplug_work_helper(&priv->pdev->dev, priv->plat->pwr,
+ 0, priv->plat->pwr_reg_offset,
+ priv->plat->pwr_mask,
+ &priv->pwr_cache);
+
+ /* Handle FAN configuration changes. */
+ if (aggr_asserted & priv->plat->top_aggr_fan_mask)
+ mlxcpld_hotplug_work_helper(&priv->pdev->dev, priv->plat->fan,
+ 1, priv->plat->fan_reg_offset,
+ priv->plat->fan_mask,
+ &priv->fan_cache);
+
+ if (aggr_asserted) {
+ spin_lock_irqsave(&priv->lock, flags);
+
+ /*
+ * It is possible, that some signals have been inserted, while
+ * interrupt has been masked by mlxcpld_hotplug_work_handler.
+ * In this case such signals will be missed. In order to handle
+ * these signals delayed work is canceled and work task
+ * re-scheduled for immediate execution. It allows to handle
+ * missed signals, if any. In other case work handler just
+ * validates that no new signals have been received during
+ * masking.
+ */
+ cancel_delayed_work(&priv->dwork);
+ schedule_delayed_work(&priv->dwork, 0);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return;
+ }
+
+ /* Unmask aggregation event (no need acknowledge). */
+ outb(priv->plat->top_aggr_mask, priv->plat->top_aggr_offset +
+ MLXCPLD_HOTPLUG_AGGR_MASK_OFF);
+}
+
+static void mlxcpld_hotplug_set_irq(struct mlxcpld_hotplug_priv_data *priv)
+{
+ /* Clear psu presense event. */
+ outb(0, priv->plat->psu_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+ /* Set psu initial status as mask and unmask psu event. */
+ priv->psu_cache = priv->plat->psu_mask;
+ outb(priv->plat->psu_mask, priv->plat->psu_reg_offset +
+ MLXCPLD_HOTPLUG_MASK_OFF);
+
+ /* Clear power cable event. */
+ outb(0, priv->plat->pwr_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+ /* Keep power initial status as zero and unmask power event. */
+ outb(priv->plat->pwr_mask, priv->plat->pwr_reg_offset +
+ MLXCPLD_HOTPLUG_MASK_OFF);
+
+ /* Clear fan presense event. */
+ outb(0, priv->plat->fan_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+ /* Set fan initial status as mask and unmask fan event. */
+ priv->fan_cache = priv->plat->fan_mask;
+ outb(priv->plat->fan_mask, priv->plat->fan_reg_offset +
+ MLXCPLD_HOTPLUG_MASK_OFF);
+
+ /* Keep aggregation initial status as zero and unmask events. */
+ outb(priv->plat->top_aggr_mask, priv->plat->top_aggr_offset +
+ MLXCPLD_HOTPLUG_AGGR_MASK_OFF);
+
+ /* Invoke work handler for initializing hot plug devices setting. */
+ mlxcpld_hotplug_work_handler(&priv->dwork.work);
+
+ enable_irq(priv->irq);
+}
+
+static void mlxcpld_hotplug_unset_irq(struct mlxcpld_hotplug_priv_data *priv)
+{
+ int i;
+
+ disable_irq(priv->irq);
+ cancel_delayed_work_sync(&priv->dwork);
+
+ /* Mask aggregation event. */
+ outb(0, priv->plat->top_aggr_offset + MLXCPLD_HOTPLUG_AGGR_MASK_OFF);
+
+ /* Mask psu presense event. */
+ outb(0, priv->plat->psu_reg_offset + MLXCPLD_HOTPLUG_MASK_OFF);
+ /* Clear psu presense event. */
+ outb(0, priv->plat->psu_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+
+ /* Mask power cable event. */
+ outb(0, priv->plat->pwr_reg_offset + MLXCPLD_HOTPLUG_MASK_OFF);
+ /* Clear power cable event. */
+ outb(0, priv->plat->pwr_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+
+ /* Mask fan presense event. */
+ outb(0, priv->plat->fan_reg_offset + MLXCPLD_HOTPLUG_MASK_OFF);
+ /* Clear fan presense event. */
+ outb(0, priv->plat->fan_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+
+ /* Remove all the attached devices. */
+ for (i = 0; i < priv->plat->psu_count; i++)
+ mlxcpld_hotplug_device_destroy(priv->plat->psu + i);
+
+ for (i = 0; i < priv->plat->pwr_count; i++)
+ mlxcpld_hotplug_device_destroy(priv->plat->pwr + i);
+
+ for (i = 0; i < priv->plat->fan_count; i++)
+ mlxcpld_hotplug_device_destroy(priv->plat->fan + i);
+}
+
+static irqreturn_t mlxcpld_hotplug_irq_handler(int irq, void *dev)
+{
+ struct mlxcpld_hotplug_priv_data *priv =
+ (struct mlxcpld_hotplug_priv_data *)dev;
+
+ /* Schedule work task for immediate execution.*/
+ schedule_delayed_work(&priv->dwork, 0);
+
+ return IRQ_HANDLED;
+}
+
+static int mlxcpld_hotplug_probe(struct platform_device *pdev)
+{
+ struct mlxcpld_hotplug_platform_data *pdata;
+ struct mlxcpld_hotplug_priv_data *priv;
+ int err;
+
+ pdata = dev_get_platdata(&pdev->dev);
+ if (!pdata) {
+ dev_err(&pdev->dev, "Failed to get platform data.\n");
+ return -EINVAL;
+ }
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->pdev = pdev;
+ priv->plat = pdata;
+
+ priv->irq = platform_get_irq(pdev, 0);
+ if (priv->irq < 0) {
+ dev_err(&pdev->dev, "Failed to get platform irq: %d\n",
+ priv->irq);
+ return priv->irq;
+ }
+
+ err = devm_request_irq(&pdev->dev, priv->irq,
+ mlxcpld_hotplug_irq_handler, 0, pdev->name,
+ priv);
+ if (err) {
+ dev_err(&pdev->dev, "Failed to request irq: %d\n", err);
+ return err;
+ }
+ disable_irq(priv->irq);
+
+ INIT_DELAYED_WORK(&priv->dwork, mlxcpld_hotplug_work_handler);
+ spin_lock_init(&priv->lock);
+
+ err = mlxcpld_hotplug_attr_init(priv);
+ if (err) {
+ dev_err(&pdev->dev, "Failed to allocate attributes: %d\n", err);
+ return err;
+ }
+
+ priv->hwmon = devm_hwmon_device_register_with_groups(&pdev->dev,
+ "mlxcpld_hotplug", priv, priv->groups);
+ if (IS_ERR(priv->hwmon)) {
+ dev_err(&pdev->dev, "Failed to register hwmon device %ld\n",
+ PTR_ERR(priv->hwmon));
+ return PTR_ERR(priv->hwmon);
+ }
+
+ platform_set_drvdata(pdev, priv);
+
+ /* Perform initial interrupts setup. */
+ mlxcpld_hotplug_set_irq(priv);
+
+ return 0;
+}
+
+static int mlxcpld_hotplug_remove(struct platform_device *pdev)
+{
+ struct mlxcpld_hotplug_priv_data *priv = platform_get_drvdata(pdev);
+
+ /* Clean interrupts setup. */
+ mlxcpld_hotplug_unset_irq(priv);
+
+ return 0;
+}
+
+static struct platform_driver mlxcpld_hotplug_driver = {
+ .driver = {
+ .name = "mlxcpld-hotplug",
+ },
+ .probe = mlxcpld_hotplug_probe,
+ .remove = mlxcpld_hotplug_remove,
+};
+
+module_platform_driver(mlxcpld_hotplug_driver);
+
+MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>");
+MODULE_DESCRIPTION("Mellanox CPLD hotplug platform driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_ALIAS("platform:mlxcpld-hotplug");
diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
index 3f870972247c..59b8eb626dcc 100644
--- a/drivers/platform/x86/panasonic-laptop.c
+++ b/drivers/platform/x86/panasonic-laptop.c
@@ -458,7 +458,7 @@ static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc)
rc = acpi_evaluate_integer(pcc->handle, METHOD_HKEY_QUERY,
NULL, &result);
- if (!ACPI_SUCCESS(rc)) {
+ if (ACPI_FAILURE(rc)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"error getting hotkey status\n"));
return;
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index b65ce7519411..aa65a857a6b1 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -128,6 +128,7 @@ enum {
/* ACPI HIDs */
#define TPACPI_ACPI_IBM_HKEY_HID "IBM0068"
#define TPACPI_ACPI_LENOVO_HKEY_HID "LEN0068"
+#define TPACPI_ACPI_LENOVO_HKEY_V2_HID "LEN0268"
#define TPACPI_ACPI_EC_HID "PNP0C09"
/* Input IDs */
@@ -190,6 +191,9 @@ enum tpacpi_hkey_event_t {
TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */
TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */
TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */
+ TP_HKEY_EV_TABLET_CHANGED = 0x60c0, /* X1 Yoga (2016):
+ * enter/leave tablet mode
+ */
TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */
TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */
TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */
@@ -302,7 +306,12 @@ static struct {
u32 hotkey:1;
u32 hotkey_mask:1;
u32 hotkey_wlsw:1;
- u32 hotkey_tablet:1;
+ enum {
+ TP_HOTKEY_TABLET_NONE = 0,
+ TP_HOTKEY_TABLET_USES_MHKG,
+ /* X1 Yoga 2016, seen on BIOS N1FET44W */
+ TP_HOTKEY_TABLET_USES_CMMD,
+ } hotkey_tablet;
u32 kbdlight:1;
u32 light:1;
u32 light_status:1;
@@ -2059,6 +2068,8 @@ static void hotkey_poll_setup(const bool may_warn);
/* HKEY.MHKG() return bits */
#define TP_HOTKEY_TABLET_MASK (1 << 3)
+/* ThinkPad X1 Yoga (2016) */
+#define TP_EC_CMMD_TABLET_MODE 0x6
static int hotkey_get_wlsw(void)
{
@@ -2083,10 +2094,23 @@ static int hotkey_get_tablet_mode(int *status)
{
int s;
- if (!acpi_evalf(hkey_handle, &s, "MHKG", "d"))
- return -EIO;
+ switch (tp_features.hotkey_tablet) {
+ case TP_HOTKEY_TABLET_USES_MHKG:
+ if (!acpi_evalf(hkey_handle, &s, "MHKG", "d"))
+ return -EIO;
+
+ *status = ((s & TP_HOTKEY_TABLET_MASK) != 0);
+ break;
+ case TP_HOTKEY_TABLET_USES_CMMD:
+ if (!acpi_evalf(ec_handle, &s, "CMMD", "d"))
+ return -EIO;
+
+ *status = (s == TP_EC_CMMD_TABLET_MODE);
+ break;
+ default:
+ break;
+ }
- *status = ((s & TP_HOTKEY_TABLET_MASK) != 0);
return 0;
}
@@ -3117,6 +3141,37 @@ static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = {
typedef u16 tpacpi_keymap_entry_t;
typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN];
+static int hotkey_init_tablet_mode(void)
+{
+ int in_tablet_mode = 0, res;
+ char *type = NULL;
+
+ if (acpi_evalf(hkey_handle, &res, "MHKG", "qd")) {
+ /* For X41t, X60t, X61t Tablets... */
+ tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_MHKG;
+ in_tablet_mode = !!(res & TP_HOTKEY_TABLET_MASK);
+ type = "MHKG";
+ } else if (acpi_evalf(ec_handle, &res, "CMMD", "qd")) {
+ /* For X1 Yoga (2016) */
+ tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_CMMD;
+ in_tablet_mode = res == TP_EC_CMMD_TABLET_MODE;
+ type = "CMMD";
+ }
+
+ if (!tp_features.hotkey_tablet)
+ return 0;
+
+ pr_info("Tablet mode switch found (type: %s), currently in %s mode\n",
+ type, in_tablet_mode ? "tablet" : "laptop");
+
+ res = add_to_attr_set(hotkey_dev_attributes,
+ &dev_attr_hotkey_tablet_mode.attr);
+ if (res)
+ return -1;
+
+ return in_tablet_mode;
+}
+
static int __init hotkey_init(struct ibm_init_struct *iibm)
{
/* Requirements for changing the default keymaps:
@@ -3464,21 +3519,14 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
res = add_to_attr_set(hotkey_dev_attributes,
&dev_attr_hotkey_radio_sw.attr);
- /* For X41t, X60t, X61t Tablets... */
- if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) {
- tp_features.hotkey_tablet = 1;
- tabletsw_state = !!(status & TP_HOTKEY_TABLET_MASK);
- pr_info("possible tablet mode switch found; "
- "ThinkPad in %s mode\n",
- (tabletsw_state) ? "tablet" : "laptop");
- res = add_to_attr_set(hotkey_dev_attributes,
- &dev_attr_hotkey_tablet_mode.attr);
- }
+ res = hotkey_init_tablet_mode();
+ if (res < 0)
+ goto err_exit;
- if (!res)
- res = register_attr_set_with_sysfs(
- hotkey_dev_attributes,
- &tpacpi_pdev->dev.kobj);
+ tabletsw_state = res;
+
+ res = register_attr_set_with_sysfs(hotkey_dev_attributes,
+ &tpacpi_pdev->dev.kobj);
if (res)
goto err_exit;
@@ -3899,6 +3947,12 @@ static bool hotkey_notify_6xxx(const u32 hkey,
*ignore_acpi_ev = true;
return true;
+ case TP_HKEY_EV_TABLET_CHANGED:
+ tpacpi_input_send_tabletsw();
+ hotkey_tablet_mode_notify_change();
+ *send_acpi_ev = false;
+ break;
+
default:
pr_warn("unknown possible thermal alarm or keyboard event received\n");
known = false;
@@ -4143,6 +4197,7 @@ errexit:
static const struct acpi_device_id ibm_htk_device_ids[] = {
{TPACPI_ACPI_IBM_HKEY_HID, 0},
{TPACPI_ACPI_LENOVO_HKEY_HID, 0},
+ {TPACPI_ACPI_LENOVO_HKEY_V2_HID, 0},
{"", 0},
};
@@ -7716,7 +7771,7 @@ static struct ibm_struct volume_driver_data = {
#define alsa_card NULL
-static void inline volume_alsa_notify_change(void)
+static inline void volume_alsa_notify_change(void)
{
}
@@ -9018,7 +9073,7 @@ static int mute_led_on_off(struct tp_led_table *t, bool state)
acpi_handle temp;
int output;
- if (!ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp))) {
+ if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) {
pr_warn("Thinkpad ACPI has no %s interface.\n", t->name);
return -EIO;
}
diff --git a/include/linux/platform_data/mlxcpld-hotplug.h b/include/linux/platform_data/mlxcpld-hotplug.h
new file mode 100644
index 000000000000..e4cfcffaa6f4
--- /dev/null
+++ b/include/linux/platform_data/mlxcpld-hotplug.h
@@ -0,0 +1,99 @@
+/*
+ * include/linux/platform_data/mlxcpld-hotplug.h
+ * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2016 Vadim Pasternak <vadimp@mellanox.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __LINUX_PLATFORM_DATA_MLXCPLD_HOTPLUG_H
+#define __LINUX_PLATFORM_DATA_MLXCPLD_HOTPLUG_H
+
+/**
+ * struct mlxcpld_hotplug_device - I2C device data:
+ * @adapter: I2C device adapter;
+ * @client: I2C device client;
+ * @brdinfo: device board information;
+ * @bus: I2C bus, where device is attached;
+ *
+ * Structure represents I2C hotplug device static data (board topology) and
+ * dynamic data (related kernel objects handles).
+ */
+struct mlxcpld_hotplug_device {
+ struct i2c_adapter *adapter;
+ struct i2c_client *client;
+ struct i2c_board_info brdinfo;
+ u16 bus;
+};
+
+/**
+ * struct mlxcpld_hotplug_platform_data - device platform data:
+ * @top_aggr_offset: offset of top aggregation interrupt register;
+ * @top_aggr_mask: top aggregation interrupt common mask;
+ * @top_aggr_psu_mask: top aggregation interrupt PSU mask;
+ * @psu_reg_offset: offset of PSU interrupt register;
+ * @psu_mask: PSU interrupt mask;
+ * @psu_count: number of equipped replaceable PSUs;
+ * @psu: pointer to PSU devices data array;
+ * @top_aggr_pwr_mask: top aggregation interrupt power mask;
+ * @pwr_reg_offset: offset of power interrupt register
+ * @pwr_mask: power interrupt mask;
+ * @pwr_count: number of power sources;
+ * @pwr: pointer to power devices data array;
+ * @top_aggr_fan_mask: top aggregation interrupt FAN mask;
+ * @fan_reg_offset: offset of FAN interrupt register;
+ * @fan_mask: FAN interrupt mask;
+ * @fan_count: number of equipped replaceable FANs;
+ * @fan: pointer to FAN devices data array;
+ *
+ * Structure represents board platform data, related to system hotplug events,
+ * like FAN, PSU, power cable insertion and removing. This data provides the
+ * number of hot-pluggable devices and hardware description for event handling.
+ */
+struct mlxcpld_hotplug_platform_data {
+ u16 top_aggr_offset;
+ u8 top_aggr_mask;
+ u8 top_aggr_psu_mask;
+ u16 psu_reg_offset;
+ u8 psu_mask;
+ u8 psu_count;
+ struct mlxcpld_hotplug_device *psu;
+ u8 top_aggr_pwr_mask;
+ u16 pwr_reg_offset;
+ u8 pwr_mask;
+ u8 pwr_count;
+ struct mlxcpld_hotplug_device *pwr;
+ u8 top_aggr_fan_mask;
+ u16 fan_reg_offset;
+ u8 fan_mask;
+ u8 fan_count;
+ struct mlxcpld_hotplug_device *fan;
+};
+
+#endif /* __LINUX_PLATFORM_DATA_MLXCPLD_HOTPLUG_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 12:52:47 +0000