From 0ba0e9e1f173a59ba402a253d356612c821b7a14 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Tue, 7 Apr 2009 11:02:28 +0800 Subject: drm/i915: workaround IGD i2c bus issue in kernel side (v2) In IGD, DPCUNIT_CLOCK_GATE_DISABLE bit should be set, otherwise i2c access will be wrong. v2: Disable CLOCK_GATE_DISABLE bit after bit bashing as suggested by Eric. Signed-off-by: Shaohua Li Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_drv.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/drm/i915/intel_drv.h') diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 957daef8edf..cf294302893 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -109,7 +109,7 @@ struct intel_i2c_chan *intel_i2c_create(struct drm_device *dev, const u32 reg, void intel_i2c_destroy(struct intel_i2c_chan *chan); int intel_ddc_get_modes(struct intel_output *intel_output); extern bool intel_ddc_probe(struct intel_output *intel_output); - +void intel_i2c_quirk_set(struct drm_device *dev, bool enable); extern void intel_crt_init(struct drm_device *dev); extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg); extern bool intel_sdvo_init(struct drm_device *dev, int output_device); -- cgit v1.2.3 From 08d7b3d1edff84bd673d9e9ab36b5aa62e1ba903 Mon Sep 17 00:00:00 2001 From: Carl Worth Date: Wed, 29 Apr 2009 14:43:54 -0700 Subject: drm/i915: Add new GET_PIPE_FROM_CRTC_ID ioctl. This allows userlevel code to discover the pipe number corresponding to a given CRTC ID. This is necessary for doing pipe-specific operations such as waiting for vblank on a given CRTC. Failure to use the right pipe mapping can result in GPU hangs, or at least failure to actually sync to vblank. Signed-off-by: Carl Worth [anholt: Style touchups from review] Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_drv.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/gpu/drm/i915/intel_drv.h') diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index cf294302893..cd4b9c5f715 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -125,6 +125,8 @@ extern struct drm_encoder *intel_best_encoder(struct drm_connector *connector); extern struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, struct drm_crtc *crtc); +int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, + struct drm_file *file_priv); extern void intel_wait_for_vblank(struct drm_device *dev); extern struct drm_crtc *intel_get_crtc_from_pipe(struct drm_device *dev, int pipe); extern struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output, -- cgit v1.2.3