We shouldn't use use mode_set/mode_set_nofb helpers when we use runtime PM. The registers configured in these funcs lose their state when we eventually enable the display pipeline.
Do not implement these vfuncs in the helpers, and call them in the crtc_enable/encoder_enable paths instead.
Signed-off-by: Archit Taneja architt@codeaurora.org --- drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c | 4 +++- drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c | 5 ++++- 2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c index fb78425db52c..0de6e3436ac8 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c @@ -443,6 +443,9 @@ static void mdp5_crtc_enable(struct drm_crtc *crtc) return;
pm_runtime_get_sync(dev); + + mdp5_crtc_mode_set_nofb(crtc); + mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->err);
if (mdp5_cstate->cmd_mode) @@ -951,7 +954,6 @@ static const struct drm_crtc_funcs mdp5_crtc_no_lm_cursor_funcs = { };
static const struct drm_crtc_helper_funcs mdp5_crtc_helper_funcs = { - .mode_set_nofb = mdp5_crtc_mode_set_nofb, .disable = mdp5_crtc_disable, .enable = mdp5_crtc_enable, .atomic_check = mdp5_crtc_atomic_check, diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c index 0ca9e4033bb6..5b851380d3f2 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c @@ -297,6 +297,10 @@ static void mdp5_encoder_enable(struct drm_encoder *encoder) { struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder); struct mdp5_interface *intf = mdp5_encoder->intf; + /* this isn't right I think */ + struct drm_crtc_state *cstate = encoder->crtc->state; + + mdp5_encoder_mode_set(encoder, &cstate->mode, &cstate->adjusted_mode);
if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND) mdp5_cmd_encoder_enable(encoder); @@ -320,7 +324,6 @@ static int mdp5_encoder_atomic_check(struct drm_encoder *encoder, }
static const struct drm_encoder_helper_funcs mdp5_encoder_helper_funcs = { - .mode_set = mdp5_encoder_mode_set, .disable = mdp5_encoder_disable, .enable = mdp5_encoder_enable, .atomic_check = mdp5_encoder_atomic_check,