On 8/26/2025 1:13 AM, Dmitry Baryshkov wrote:
On Mon, Aug 25, 2025 at 10:15:49PM +0800, Yongxing Mou wrote:
From: Abhinav Kumar <[email protected]>
dp_display_enable() currently re-trains the link if needed and then
enables the pixel clock, programs the controller to start sending the
pixel stream. Split these two parts into prepare/enable APIs, to support
MST bridges_enable insert the MST payloads funcs between enable
stream_clks and program register.
Signed-off-by: Abhinav Kumar <[email protected]>
Signed-off-by: Yongxing Mou <[email protected]>
---
drivers/gpu/drm/msm/dp/dp_ctrl.c | 51 ++++++++++------
drivers/gpu/drm/msm/dp/dp_ctrl.h | 3 +-
drivers/gpu/drm/msm/dp/dp_display.c | 113 ++++++++++++++++++++++++------------
drivers/gpu/drm/msm/dp/dp_display.h | 1 +
4 files changed, 113 insertions(+), 55 deletions(-)
void msm_dp_bridge_mode_set(struct drm_bridge *drm_bridge,
diff --git a/drivers/gpu/drm/msm/dp/dp_display.h
b/drivers/gpu/drm/msm/dp/dp_display.h
index
60094061c1029bc7a06ffaa80d9403b40aa07eb1..2fbf16f27842bb7639efaa2baecac7bdf8908432
100644
--- a/drivers/gpu/drm/msm/dp/dp_display.h
+++ b/drivers/gpu/drm/msm/dp/dp_display.h
@@ -20,6 +20,7 @@ struct msm_dp {
bool link_ready;
bool audio_enabled;
bool power_on;
+ bool prepared;
Why do you need this? The msm_dp_display_prepare() function can only be
called from within the atomic_enable() callback, which is not supposed
to fail and which is always called in pairs with the atomic_disable()
callback.
Sure . Will move to the appropriate patch.
unsigned int connector_type;
bool is_edp;
bool internal_hpd;
--
2.34.1
