On 5/29/2015 10:50 PM, Daniel Vetter wrote:
On Fri, May 29, 2015 at 07:16:36PM +0200, Daniel Vetter wrote:
On Fri, May 29, 2015 at 04:06:59PM +0530, Gaurav K Singh wrote:
During disable sequence for MIPI encoder in command mode, disable
MIPI display self-refresh mode bit in Pipe Ctrl reg.
Signed-off-by: Gaurav K Singh <gaurav.k.si...@intel.com>
Signed-off-by: Yogesh Mohan Marimuthu <yogesh.mohan.marimu...@intel.com>
Signed-off-by: Shobhit Kumar <shobhit.ku...@intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 895d7c7..cab2ac8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2171,6 +2171,9 @@ static void intel_enable_pipe(struct intel_crtc *crtc)
static void intel_disable_pipe(struct intel_crtc *crtc)
{
struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
+ struct intel_encoder *encoder;
+ struct intel_dsi *intel_dsi;
+ struct drm_device *dev = crtc->base.dev;
enum transcoder cpu_transcoder = crtc->config->cpu_transcoder;
enum pipe pipe = crtc->pipe;
int reg;
@@ -2189,6 +2192,16 @@ static void intel_disable_pipe(struct intel_crtc *crtc)
if ((val & PIPECONF_ENABLE) == 0)
return;
+ for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
+ if (encoder->type == INTEL_OUTPUT_DSI) {
+ intel_dsi = enc_to_intel_dsi(&encoder->base);
+ if (intel_dsi && (intel_dsi->operation_mode ==
+ INTEL_DSI_COMMAND_MODE))
+ val = val & ~PIPECONF_MIPI_DSR_ENABLE;
+ break;
+ }
+ }
This must be moved into a suitable encoder callback. Yes the ddi code is
full of cases where encoder stuff is done from the generic crtc code. But
we now have 2 completely different kinds of ports on bxt (ddi and dsi),
and we need to get some solid structure into the code again.
Ah I missed that this is a pipeconf thing. Unconditionally clearing this
bit will achieve the same, without the need to loop over connectors.
-Daniel
Agree with you. Instead of loop over the encoders, will set up the state
flag and will use it here.
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