Merge branch 'for-4.14/fs' into libnvdimm-for-next

8 files changed, 103 insertions, 9 deletions

diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index fc6c416f8724..d5999eb41c00 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -180,8 +180,8 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
 	{ "APMC0D0F", APD_ADDR(xgene_i2c_desc) },
 	{ "BRCM900D", APD_ADDR(vulcan_spi_desc) },
 	{ "CAV900D",  APD_ADDR(vulcan_spi_desc) },
-	{ "HISI0A21", APD_ADDR(hip07_i2c_desc) },
-	{ "HISI0A22", APD_ADDR(hip08_i2c_desc) },
+	{ "HISI02A1", APD_ADDR(hip07_i2c_desc) },
+	{ "HISI02A2", APD_ADDR(hip08_i2c_desc) },
 #endif
 	{ }
 };
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index e51a1e98e62f..f88caf5aab76 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -85,6 +85,7 @@ static const struct lpss_device_desc lpss_dma_desc = {
 };
 
 struct lpss_private_data {
+	struct acpi_device *adev;
 	void __iomem *mmio_base;
 	resource_size_t mmio_size;
 	unsigned int fixed_clk_rate;
@@ -155,6 +156,12 @@ static struct pwm_lookup byt_pwm_lookup[] = {
 
 static void byt_pwm_setup(struct lpss_private_data *pdata)
 {
+	struct acpi_device *adev = pdata->adev;
+
+	/* Only call pwm_add_table for the first PWM controller */
+	if (!adev->pnp.unique_id || strcmp(adev->pnp.unique_id, "1"))
+		return;
+
 	if (!acpi_dev_present("INT33FD", NULL, -1))
 		pwm_add_table(byt_pwm_lookup, ARRAY_SIZE(byt_pwm_lookup));
 }
@@ -180,6 +187,12 @@ static struct pwm_lookup bsw_pwm_lookup[] = {
 
 static void bsw_pwm_setup(struct lpss_private_data *pdata)
 {
+	struct acpi_device *adev = pdata->adev;
+
+	/* Only call pwm_add_table for the first PWM controller */
+	if (!adev->pnp.unique_id || strcmp(adev->pnp.unique_id, "1"))
+		return;
+
 	pwm_add_table(bsw_pwm_lookup, ARRAY_SIZE(bsw_pwm_lookup));
 }
 
@@ -456,6 +469,7 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
 		goto err_out;
 	}
 
+	pdata->adev = adev;
 	pdata->dev_desc = dev_desc;
 
 	if (dev_desc->setup)
diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index 8c4e0a18460a..bf22c29d2517 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -86,7 +86,12 @@ void __init acpi_watchdog_init(void)
 
 		found = false;
 		resource_list_for_each_entry(rentry, &resource_list) {
-			if (resource_contains(rentry->res, &res)) {
+			if (rentry->res->flags == res.flags &&
+			    resource_overlaps(rentry->res, &res)) {
+				if (res.start < rentry->res->start)
+					rentry->res->start = res.start;
+				if (res.end > rentry->res->end)
+					rentry->res->end = res.end;
 				found = true;
 				break;
 			}
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index ddb01e9fa5b2..62068a5e814f 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -151,6 +151,10 @@ static bool ec_freeze_events __read_mostly = false;
 module_param(ec_freeze_events, bool, 0644);
 MODULE_PARM_DESC(ec_freeze_events, "Disabling event handling during suspend/resume");
 
+static bool ec_no_wakeup __read_mostly;
+module_param(ec_no_wakeup, bool, 0644);
+MODULE_PARM_DESC(ec_no_wakeup, "Do not wake up from suspend-to-idle");
+
 struct acpi_ec_query_handler {
 	struct list_head node;
 	acpi_ec_query_func func;
@@ -535,6 +539,14 @@ static void acpi_ec_disable_event(struct acpi_ec *ec)
 	spin_unlock_irqrestore(&ec->lock, flags);
 	__acpi_ec_flush_event(ec);
 }
+
+void acpi_ec_flush_work(void)
+{
+	if (first_ec)
+		__acpi_ec_flush_event(first_ec);
+
+	flush_scheduled_work();
+}
 #endif /* CONFIG_PM_SLEEP */
 
 static bool acpi_ec_guard_event(struct acpi_ec *ec)
@@ -1880,6 +1892,32 @@ static int acpi_ec_suspend(struct device *dev)
 	return 0;
 }
 
+static int acpi_ec_suspend_noirq(struct device *dev)
+{
+	struct acpi_ec *ec = acpi_driver_data(to_acpi_device(dev));
+
+	/*
+	 * The SCI handler doesn't run at this point, so the GPE can be
+	 * masked at the low level without side effects.
+	 */
+	if (ec_no_wakeup && test_bit(EC_FLAGS_STARTED, &ec->flags) &&
+	    ec->reference_count >= 1)
+		acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE);
+
+	return 0;
+}
+
+static int acpi_ec_resume_noirq(struct device *dev)
+{
+	struct acpi_ec *ec = acpi_driver_data(to_acpi_device(dev));
+
+	if (ec_no_wakeup && test_bit(EC_FLAGS_STARTED, &ec->flags) &&
+	    ec->reference_count >= 1)
+		acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE);
+
+	return 0;
+}
+
 static int acpi_ec_resume(struct device *dev)
 {
 	struct acpi_ec *ec =
@@ -1891,6 +1929,7 @@ static int acpi_ec_resume(struct device *dev)
 #endif
 
 static const struct dev_pm_ops acpi_ec_pm = {
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(acpi_ec_suspend_noirq, acpi_ec_resume_noirq)
 	SET_SYSTEM_SLEEP_PM_OPS(acpi_ec_suspend, acpi_ec_resume)
 };
 
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 9531d3276f65..58dd7ab3c653 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -193,6 +193,10 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 			      void *data);
 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 
+#ifdef CONFIG_PM_SLEEP
+void acpi_ec_flush_work(void);
+#endif
+
 
 /*--------------------------------------------------------------------------
                                   Suspend/Resume
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index edb0c79f7c64..917f1cc0fda4 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -443,7 +443,7 @@ int __init acpi_numa_init(void)
 	 * So go over all cpu entries in SRAT to get apicid to node mapping.
 	 */
 
-	/* SRAT: Static Resource Affinity Table */
+	/* SRAT: System Resource Affinity Table */
 	if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
 		struct acpi_subtable_proc srat_proc[3];
 
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index be17664736b2..fa8243c5c062 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -777,11 +777,11 @@ static void acpi_freeze_sync(void)
 	/*
 	 * Process all pending events in case there are any wakeup ones.
 	 *
-	 * The EC driver uses the system workqueue, so that one needs to be
-	 * flushed too.
+	 * The EC driver uses the system workqueue and an additional special
+	 * one, so those need to be flushed too.
 	 */
+	acpi_ec_flush_work();
 	acpi_os_wait_events_complete();
-	flush_scheduled_work();
 	s2idle_wakeup = false;
 }
 
diff --git a/drivers/acpi/spcr.c b/drivers/acpi/spcr.c
index 4ac3e06b41d8..98aa8c808a33 100644
--- a/drivers/acpi/spcr.c
+++ b/drivers/acpi/spcr.c
@@ -17,6 +17,16 @@
 #include <linux/serial_core.h>
 
 /*
+ * Erratum 44 for QDF2432v1 and QDF2400v1 SoCs describes the BUSY bit as
+ * occasionally getting stuck as 1. To avoid the potential for a hang, check
+ * TXFE == 0 instead of BUSY == 1. This may not be suitable for all UART
+ * implementations, so only do so if an affected platform is detected in
+ * parse_spcr().
+ */
+bool qdf2400_e44_present;
+EXPORT_SYMBOL(qdf2400_e44_present);
+
+/*
  * Some Qualcomm Datacenter Technologies SoCs have a defective UART BUSY bit.
  * Detect them by examining the OEM fields in the SPCR header, similiar to PCI
  * quirk detection in pci_mcfg.c.
@@ -147,8 +157,30 @@ int __init parse_spcr(bool earlycon)
 		goto done;
 	}
 
-	if (qdf2400_erratum_44_present(&table->header))
-		uart = "qdf2400_e44";
+	/*
+	 * If the E44 erratum is required, then we need to tell the pl011
+	 * driver to implement the work-around.
+	 *
+	 * The global variable is used by the probe function when it
+	 * creates the UARTs, whether or not they're used as a console.
+	 *
+	 * If the user specifies "traditional" earlycon, the qdf2400_e44
+	 * console name matches the EARLYCON_DECLARE() statement, and
+	 * SPCR is not used.  Parameter "earlycon" is false.
+	 *
+	 * If the user specifies "SPCR" earlycon, then we need to update
+	 * the console name so that it also says "qdf2400_e44".  Parameter
+	 * "earlycon" is true.
+	 *
+	 * For consistency, if we change the console name, then we do it
+	 * for everyone, not just earlycon.
+	 */
+	if (qdf2400_erratum_44_present(&table->header)) {
+		qdf2400_e44_present = true;
+		if (earlycon)
+			uart = "qdf2400_e44";
+	}
+
 	if (xgene_8250_erratum_present(table))
 		iotype = "mmio32";