[PATCH 12/14] drm/i915: set/unset the DDI eDP backlight

Paulo Zanoni
2012-10-18T21:22:25Z

drivers/gpu/drm/i915/intel_ddi.c | 15 +++++++++++++--
drivers/gpu/drm/i915/intel_dp.c | 4 ++--
drivers/gpu/drm/i915/intel_drv.h | 6 ++++--
3 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 5e21bc1..48eb125 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1230,12 +1230,23 @@ void intel_enable_ddi(struct intel_encoder *intel_encoder)
* enabling the port.
*/
I915_WRITE(DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE);
+ } else if (type == INTEL_OUTPUT_EDP) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ ironlake_edp_backlight_on(intel_dp);
}
}

-void intel_disable_ddi(struct intel_encoder *encoder)
+void intel_disable_ddi(struct intel_encoder *intel_encoder)
{
- /* This will be needed in the future, so leave it here for now */
+ struct drm_encoder *encoder = &intel_encoder->base;
+ int type = intel_encoder->type;
+
+ if (type == INTEL_OUTPUT_EDP) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ ironlake_edp_backlight_off(intel_dp);
+ }
}

int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 9486f11..f241f49 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1178,7 +1178,7 @@ static void ironlake_edp_panel_off(struct intel_dp *intel_dp)
ironlake_wait_panel_off(intel_dp);
}

-static void ironlake_edp_backlight_on(struct intel_dp *intel_dp)
+void ironlake_edp_backlight_on(struct intel_dp *intel_dp)
{
struct drm_device *dev = intel_dp->base.base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -1201,7 +1201,7 @@ static void ironlake_edp_backlight_on(struct intel_dp *intel_dp)
POSTING_READ(PCH_PP_CONTROL);
}

-static void ironlake_edp_backlight_off(struct intel_dp *intel_dp)
+void ironlake_edp_backlight_off(struct intel_dp *intel_dp)
{
struct drm_device *dev = intel_dp->base.base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index ed436d0..7247950 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -428,6 +428,8 @@ extern void intel_dp_start_link_train(struct intel_dp *intel_dp);
extern void intel_dp_complete_link_train(struct intel_dp *intel_dp);
extern void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
extern bool intel_dpd_is_edp(struct drm_device *dev);
+extern void ironlake_edp_backlight_on(struct intel_dp *intel_dp);
+extern void ironlake_edp_backlight_off(struct intel_dp *intel_dp);
extern void intel_edp_link_config(struct intel_encoder *, int *, int *);
extern int intel_edp_target_clock(struct intel_encoder *,
struct drm_display_mode *mode);
@@ -586,8 +588,8 @@ extern void intel_disable_gt_powersave(struct drm_device *dev);
extern void gen6_gt_check_fifodbg(struct drm_i915_private *dev_priv);
extern void ironlake_teardown_rc6(struct drm_device *dev);

-extern void intel_enable_ddi(struct intel_encoder *encoder);
-extern void intel_disable_ddi(struct intel_encoder *encoder);
+extern void intel_enable_ddi(struct intel_encoder *intel_encoder);
+extern void intel_disable_ddi(struct intel_encoder *intel_encoder);
extern bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
enum pipe *pipe);
extern void intel_ddi_mode_set(struct drm_encoder *encoder,
--
1.7.11.4