[Intel-gfx] [PATCH 1/5] drm/i915/bxt: Corrected the guid for bxt.

[Animesh Manna]

Guid is changed for bxt platform, so corrected the guid for bxt.

v1: Initial version as RFC.

v2: Based on review comment from Jani and David,
have kept guid as binary format.

Signed-off-by: Ananth Krishna R <ananth.krishna.r at intel.com>
Signed-off-by: Bharath K Veera <bharath.k.veera at intel.com>
Signed-off-by: Animesh Manna <animesh.manna at intel.com>
---
 drivers/gpu/drm/i915/intel_acpi.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)
 mode change 100644 => 100755 drivers/gpu/drm/i915/intel_acpi.c

diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c
old mode 100644
new mode 100755
index eb638a1..8c878ab
--- a/drivers/gpu/drm/i915/intel_acpi.c
+++ b/drivers/gpu/drm/i915/intel_acpi.c
@@ -15,7 +15,7 @@
 	acpi_handle dhandle;
 } intel_dsm_priv;
 
-static const u8 intel_dsm_guid[] = {
+static u8 intel_dsm_guid[] = {
 	0xd3, 0x73, 0xd8, 0x7e,
 	0xd0, 0xc2,
 	0x4f, 0x4e,
@@ -23,6 +23,14 @@
 	0x0f, 0x13, 0x17, 0xb0, 0x1c, 0x2c
 };
 
+static u8 intel_dsm_guid_bxt[] = {
+	0xc6, 0x41, 0x5b, 0x3e,
+	0x1d, 0xeb,
+	0x60, 0x42,
+	0x9d, 0x15,
+	0xc7, 0x1f, 0xba, 0xda, 0xe4, 0x14
+};
+
 static char *intel_dsm_port_name(u8 id)
 {
 	switch (id) {
@@ -113,12 +121,20 @@ static void intel_dsm_platform_mux_info(void)
 static bool intel_dsm_pci_probe(struct pci_dev *pdev)
 {
 	acpi_handle dhandle;
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	u8 *guid;
 
 	dhandle = ACPI_HANDLE(&pdev->dev);
 	if (!dhandle)
 		return false;
 
-	if (!acpi_check_dsm(dhandle, intel_dsm_guid, INTEL_DSM_REVISION_ID,
+	if (IS_BROXTON(dev_priv))
+		guid = intel_dsm_guid_bxt;
+	else
+		guid = intel_dsm_guid;
+
+	if (!acpi_check_dsm(dhandle, guid, INTEL_DSM_REVISION_ID,
 			    1 << INTEL_DSM_FN_PLATFORM_MUX_INFO)) {
 		DRM_DEBUG_KMS("no _DSM method for intel device\n");
 		return false;
-- 
1.9.1