drm/i915/skl: Sunrise Point PCH detection

This patch implements detection of SPT and SPT-LP PCH devices.

v2: Added HAS_PCH_SPT macro

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Satheeshakrishna M <satheeshakrishna.m@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 7088bde..51fbb34 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -475,6 +475,16 @@ void intel_detect_pch(struct drm_device *dev)
                                DRM_DEBUG_KMS("Found LynxPoint LP PCH\n");
                                WARN_ON(!IS_HASWELL(dev));
                                WARN_ON(!IS_ULT(dev));
+                       } else if (id == INTEL_PCH_SPT_DEVICE_ID_TYPE) {
+                               dev_priv->pch_type = PCH_SPT;
+                               DRM_DEBUG_KMS("Found SunrisePoint PCH\n");
+                               WARN_ON(!IS_SKYLAKE(dev));
+                               WARN_ON(IS_ULT(dev));
+                       } else if (id == INTEL_PCH_SPT_LP_DEVICE_ID_TYPE) {
+                               dev_priv->pch_type = PCH_SPT;
+                               DRM_DEBUG_KMS("Found SunrisePoint LP PCH\n");
+                               WARN_ON(!IS_SKYLAKE(dev));
+                               WARN_ON(!IS_ULT(dev));
                        } else
                                continue;
 

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2c652e8..a8d4e23 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -705,6 +705,7 @@ enum intel_pch {
        PCH_IBX,        /* Ibexpeak PCH */
        PCH_CPT,        /* Cougarpoint PCH */
        PCH_LPT,        /* Lynxpoint PCH */
+       PCH_SPT,        /* Sunrisepoint PCH */
        PCH_NOP,
 };
 
@@ -2191,8 +2192,11 @@ struct drm_i915_cmd_table {
 #define INTEL_PCH_PPT_DEVICE_ID_TYPE           0x1e00
 #define INTEL_PCH_LPT_DEVICE_ID_TYPE           0x8c00
 #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE                0x9c00
+#define INTEL_PCH_SPT_DEVICE_ID_TYPE           0xA100
+#define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE                0x9D00
 
 #define INTEL_PCH_TYPE(dev) (to_i915(dev)->pch_type)
+#define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
 #define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)