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msm: mdss: force revalidate layers after resolution switch

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Avoid skipping validation for all layers during ATOMIC_COMMIT
validate call after dynamic resolution switching. Though the
configs remain the same for few layers, revalidation is required
based on the new resolution as the src_split and other settings
might have changed.

Change-Id: I3f1f2e09c90e8ff1a6380e35ed9e980b5c2be46c
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
This commit is contained in:
Veera Sundaram Sankaran 2016-05-13 13:57:24 -07:00 • committed by Kyle Yan
parent 2bb0363c03
commit 40920ca470
1 changed files with 13 additions and 3 deletions
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16
drivers/video/fbdev/msm/mdss_mdp_layer.c
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@ -1836,7 +1836,7 @@ static int __validate_layers(struct msm_fb_data_type *mfd,
struct mdss_mdp_mixer *mixer = NULL;
struct mdp_input_layer *layer, *prev_layer, *layer_list;
struct mdss_mdp_validate_info_t *validate_info_list = NULL;
bool is_single_layer = false;
bool is_single_layer = false, force_validate;
enum layer_pipe_q pipe_q_type;
enum layer_zorder_used zorder_used[MDSS_MDP_MAX_STAGE] = {0};
enum mdss_mdp_pipe_rect rect_num;
@ -1895,6 +1895,15 @@ static int __validate_layers(struct msm_fb_data_type *mfd,
rec_ndx[rect_num] |= layer_list[i].pipe_ndx;
}
/*
* Force all layers to go through full validation after
* dynamic resolution switch, immaterial of the configs in
* the layer.
*/
mutex_lock(&mfd->switch_lock);
force_validate = (mfd->switch_state != MDSS_MDP_NO_UPDATE_REQUESTED);
mutex_unlock(&mfd->switch_lock);
for (i = 0; i < layer_count; i++) {
enum layer_zorder_used z = LAYER_ZORDER_NONE;
@ -1980,8 +1989,9 @@ static int __validate_layers(struct msm_fb_data_type *mfd,
* are same. validation can be skipped if only buffer handle
* is changed.
*/
pipe = __find_layer_in_validate_q(&validate_info_list[i],
mdp5_data);
pipe = (force_validate) ? NULL :
__find_layer_in_validate_q(
&validate_info_list[i], mdp5_data);
if (pipe) {
if (mixer_mux == MDSS_MDP_MIXER_MUX_RIGHT)
right_plist[right_cnt++] = pipe;