Linux-libre 4.6.2-gnu

1 files changed, 27 insertions, 29 deletions

diff --git a/drivers/platform/x86/intel_pmc_ipc.c b/drivers/platform/x86/intel_pmc_ipc.c
index 092519e37..6f497e80c 100644
--- a/drivers/platform/x86/intel_pmc_ipc.c
+++ b/drivers/platform/x86/intel_pmc_ipc.c
@@ -67,7 +67,8 @@
 /* exported resources from IFWI */
 #define PLAT_RESOURCE_IPC_INDEX		0
 #define PLAT_RESOURCE_IPC_SIZE		0x1000
-#define PLAT_RESOURCE_GCR_SIZE		0x1000
+#define PLAT_RESOURCE_GCR_OFFSET	0x1008
+#define PLAT_RESOURCE_GCR_SIZE		0x4
 #define PLAT_RESOURCE_BIOS_DATA_INDEX	1
 #define PLAT_RESOURCE_BIOS_IFACE_INDEX	2
 #define PLAT_RESOURCE_TELEM_SSRAM_INDEX	3
@@ -686,8 +687,8 @@ static int ipc_plat_get_res(struct platform_device *pdev)
 	ipcdev.acpi_io_size = size;
 	dev_info(&pdev->dev, "io res: %pR\n", res);
 
-	/* This is index 0 to cover BIOS data register */
 	punit_res = punit_res_array;
+	/* This is index 0 to cover BIOS data register */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_BIOS_DATA_INDEX);
 	if (!res) {
@@ -697,55 +698,51 @@ static int ipc_plat_get_res(struct platform_device *pdev)
 	*punit_res = *res;
 	dev_info(&pdev->dev, "punit BIOS data res: %pR\n", res);
 
+	/* This is index 1 to cover BIOS interface register */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_BIOS_IFACE_INDEX);
 	if (!res) {
 		dev_err(&pdev->dev, "Failed to get res of punit BIOS iface\n");
 		return -ENXIO;
 	}
-	/* This is index 1 to cover BIOS interface register */
 	*++punit_res = *res;
 	dev_info(&pdev->dev, "punit BIOS interface res: %pR\n", res);
 
+	/* This is index 2 to cover ISP data register, optional */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_ISP_DATA_INDEX);
-	if (!res) {
-		dev_err(&pdev->dev, "Failed to get res of punit ISP data\n");
-		return -ENXIO;
+	++punit_res;
+	if (res) {
+		*punit_res = *res;
+		dev_info(&pdev->dev, "punit ISP data res: %pR\n", res);
 	}
-	/* This is index 2 to cover ISP data register */
-	*++punit_res = *res;
-	dev_info(&pdev->dev, "punit ISP data res: %pR\n", res);
 
+	/* This is index 3 to cover ISP interface register, optional */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_ISP_IFACE_INDEX);
-	if (!res) {
-		dev_err(&pdev->dev, "Failed to get res of punit ISP iface\n");
-		return -ENXIO;
+	++punit_res;
+	if (res) {
+		*punit_res = *res;
+		dev_info(&pdev->dev, "punit ISP interface res: %pR\n", res);
 	}
-	/* This is index 3 to cover ISP interface register */
-	*++punit_res = *res;
-	dev_info(&pdev->dev, "punit ISP interface res: %pR\n", res);
 
+	/* This is index 4 to cover GTD data register, optional */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_GTD_DATA_INDEX);
-	if (!res) {
-		dev_err(&pdev->dev, "Failed to get res of punit GTD data\n");
-		return -ENXIO;
+	++punit_res;
+	if (res) {
+		*punit_res = *res;
+		dev_info(&pdev->dev, "punit GTD data res: %pR\n", res);
 	}
-	/* This is index 4 to cover GTD data register */
-	*++punit_res = *res;
-	dev_info(&pdev->dev, "punit GTD data res: %pR\n", res);
 
+	/* This is index 5 to cover GTD interface register, optional */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_GTD_IFACE_INDEX);
-	if (!res) {
-		dev_err(&pdev->dev, "Failed to get res of punit GTD iface\n");
-		return -ENXIO;
+	++punit_res;
+	if (res) {
+		*punit_res = *res;
+		dev_info(&pdev->dev, "punit GTD interface res: %pR\n", res);
 	}
-	/* This is index 5 to cover GTD interface register */
-	*++punit_res = *res;
-	dev_info(&pdev->dev, "punit GTD interface res: %pR\n", res);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_IPC_INDEX);
@@ -766,7 +763,7 @@ static int ipc_plat_get_res(struct platform_device *pdev)
 	}
 	ipcdev.ipc_base = addr;
 
-	ipcdev.gcr_base = res->start + size;
+	ipcdev.gcr_base = res->start + PLAT_RESOURCE_GCR_OFFSET;
 	ipcdev.gcr_size = PLAT_RESOURCE_GCR_SIZE;
 	dev_info(&pdev->dev, "ipc res: %pR\n", res);
 
@@ -824,7 +821,8 @@ static int ipc_plat_probe(struct platform_device *pdev)
 		goto err_device;
 	}
 
-	if (request_irq(ipcdev.irq, ioc, 0, "intel_pmc_ipc", &ipcdev)) {
+	if (request_irq(ipcdev.irq, ioc, IRQF_NO_SUSPEND,
+			"intel_pmc_ipc", &ipcdev)) {
 		dev_err(&pdev->dev, "Failed to request irq\n");
 		ret = -EBUSY;
 		goto err_irq;