From 42c729418d9ce8f212ee691a8a91d93bfe9f34de Mon Sep 17 00:00:00 2001 From: "james qian wang (Arm Technology China)" Date: Tue, 22 Jan 2019 11:11:44 +0000 Subject: [PATCH] drm/komeda: Add komeda_kms_check Implement komeda_kms_check to add all affected_planes (even unchanged) to drm_atomic_state. since komeda need to re-calculate the resources assumption in every commit. v2: Rebase Signed-off-by: James Qian Wang (Arm Technology China) Signed-off-by: Liviu Dudau --- .../gpu/drm/arm/display/komeda/komeda_kms.c | 30 ++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c index 55b103ae3e2f..e8573b03021f 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c @@ -100,9 +100,37 @@ static const struct drm_mode_config_helper_funcs komeda_mode_config_helpers = { .atomic_commit_tail = komeda_kms_commit_tail, }; +static int komeda_kms_check(struct drm_device *dev, + struct drm_atomic_state *state) +{ + struct drm_crtc *crtc; + struct drm_crtc_state *old_crtc_st, *new_crtc_st; + int i, err; + + err = drm_atomic_helper_check_modeset(dev, state); + if (err) + return err; + + /* komeda need to re-calculate resource assumption in every commit + * so need to add all affected_planes (even unchanged) to + * drm_atomic_state. + */ + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_st, new_crtc_st, i) { + err = drm_atomic_add_affected_planes(state, crtc); + if (err) + return err; + } + + err = drm_atomic_helper_check_planes(dev, state); + if (err) + return err; + + return 0; +} + static const struct drm_mode_config_funcs komeda_mode_config_funcs = { .fb_create = komeda_fb_create, - .atomic_check = drm_atomic_helper_check, + .atomic_check = komeda_kms_check, .atomic_commit = drm_atomic_helper_commit, }; -- 2.30.2