diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2016-07-12 14:16:32 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-07-13 09:24:51 +0200 |
| commit | 05f310e26fe9d97fec0ce1752edc16bf1ea55a2d (patch) | |
| tree | 943e59407a9ad949c75261e9d3540cc932b2dcf4 | |
| parent | 707a605b5a1732e548f4ff51ccf0199a14d95f0f (diff) | |
| download | linux-05f310e26fe9d97fec0ce1752edc16bf1ea55a2d.tar.bz2 | |
x86/sfi: Enable enumeration of SD devices
SFI specification v0.8.2 defines type of devices which are connected to
SD bus. In particularly WiFi dongle is a such.
Add a callback to enumerate the devices connected to SD bus.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1468322192-62080-1-git-send-email-andriy.shevchenko@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/include/asm/intel-mid.h | 15 | ||||
| -rw-r--r-- | arch/x86/platform/intel-mid/sfi.c | 29 | ||||
| -rw-r--r-- | include/linux/sfi.h | 1 |
3 files changed, 45 insertions, 0 deletions
diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h index 59013a2ac713..9d6b097aa73d 100644 --- a/arch/x86/include/asm/intel-mid.h +++ b/arch/x86/include/asm/intel-mid.h @@ -49,6 +49,21 @@ struct devs_id { static const struct devs_id *const __intel_mid_sfi_##i##_dev __used \ __attribute__((__section__(".x86_intel_mid_dev.init"))) = &i +/** +* struct mid_sd_board_info - template for SD device creation +* @name: identifies the driver +* @bus_num: board-specific identifier for a given SD controller +* @max_clk: the maximum frequency device supports +* @platform_data: the particular data stored there is driver-specific +*/ +struct mid_sd_board_info { + char name[SFI_NAME_LEN]; + int bus_num; + unsigned short addr; + u32 max_clk; + void *platform_data; +}; + /* * Medfield is the follow-up of Moorestown, it combines two chip solution into * one. Other than that it also added always-on and constant tsc and lapic diff --git a/arch/x86/platform/intel-mid/sfi.c b/arch/x86/platform/intel-mid/sfi.c index 5ee360a951ce..1555672d436f 100644 --- a/arch/x86/platform/intel-mid/sfi.c +++ b/arch/x86/platform/intel-mid/sfi.c @@ -407,6 +407,32 @@ static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry, i2c_register_board_info(pentry->host_num, &i2c_info, 1); } +static void __init sfi_handle_sd_dev(struct sfi_device_table_entry *pentry, + struct devs_id *dev) +{ + struct mid_sd_board_info sd_info; + void *pdata; + + memset(&sd_info, 0, sizeof(sd_info)); + strncpy(sd_info.name, pentry->name, SFI_NAME_LEN); + sd_info.bus_num = pentry->host_num; + sd_info.max_clk = pentry->max_freq; + sd_info.addr = pentry->addr; + pr_debug("SD bus = %d, name = %16.16s, max_clk = %d, addr = 0x%x\n", + sd_info.bus_num, + sd_info.name, + sd_info.max_clk, + sd_info.addr); + pdata = intel_mid_sfi_get_pdata(dev, &sd_info); + if (IS_ERR(pdata)) + return; + + /* Nothing we can do with this for now */ + sd_info.platform_data = pdata; + + pr_debug("Successfully registered %16.16s", sd_info.name); +} + extern struct devs_id *const __x86_intel_mid_dev_start[], *const __x86_intel_mid_dev_end[]; @@ -490,6 +516,9 @@ static int __init sfi_parse_devs(struct sfi_table_header *table) case SFI_DEV_TYPE_I2C: sfi_handle_i2c_dev(pentry, dev); break; + case SFI_DEV_TYPE_SD: + sfi_handle_sd_dev(pentry, dev); + break; case SFI_DEV_TYPE_UART: case SFI_DEV_TYPE_HSI: default: diff --git a/include/linux/sfi.h b/include/linux/sfi.h index d9b436f09925..e0e1597ef9e6 100644 --- a/include/linux/sfi.h +++ b/include/linux/sfi.h @@ -156,6 +156,7 @@ struct sfi_device_table_entry { #define SFI_DEV_TYPE_UART 2 #define SFI_DEV_TYPE_HSI 3 #define SFI_DEV_TYPE_IPC 4 +#define SFI_DEV_TYPE_SD 5 u8 host_num; /* attached to host 0, 1...*/ u16 addr; |