static int mdss_mdp_kcal_display_commit(void)
{
int i;
int ret = 0;
struct mdss_mdp_ctl *ctl;
struct mdss_data_type *mdata = mdss_mdp_get_mdata();
for (i = 0; i < mdata->nctl; i++) {
ctl = mdata->ctl_off + i;
/* pp setup requires mfd */
if ((ctl->power_on) && (ctl->mfd)) {
ret = mdss_mdp_pp_setup(ctl);
if (ret)
pr_err("%s: setup failed: %d\n", __func__, ret);
}
}
return ret;
}
int mdss_mdp_display_commit(struct mdss_mdp_ctl *ctl, void *arg)
{
int mixer1_changed, mixer2_changed;
int ret = 0;
int perf_update = MDSS_MDP_PERF_UPDATE_SKIP;
u32 update_flags = 0;
if (!ctl) {
pr_err("display function not set\n");
return -ENODEV;
}
pr_debug("commit ctl=%d play_cnt=%d\n", ctl->num, ctl->play_cnt);
ret = mutex_lock_interruptible(&ctl->lock);
if (ret)
return ret;
if (!ctl->power_on) {
mutex_unlock(&ctl->lock);
return 0;
}
mixer1_changed = (ctl->mixer_left && ctl->mixer_left->params_changed);
mixer2_changed = (ctl->mixer_right && ctl->mixer_right->params_changed);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON, false);
if (mixer1_changed || mixer2_changed) {
perf_update = mdss_mdp_ctl_perf_update(ctl, &update_flags);
if (ctl->prepare_fnc)
ret = ctl->prepare_fnc(ctl, arg);
if (ret) {
pr_err("error preparing display\n");
goto done;
}
if (perf_update == MDSS_MDP_PERF_UPDATE_EARLY)
mdss_mdp_ctl_perf_commit(update_flags);
if (mixer1_changed)
mdss_mdp_mixer_update(ctl->mixer_left);
if (mixer2_changed)
mdss_mdp_mixer_update(ctl->mixer_right);
mdss_mdp_ctl_write(ctl, MDSS_MDP_REG_CTL_TOP, ctl->opmode);
ctl->flush_bits |= BIT(17); /* CTL */
}
/* postprocessing setup, including dspp */
mdss_mdp_pp_setup(ctl);
mdss_mdp_ctl_write(ctl, MDSS_MDP_REG_CTL_FLUSH, ctl->flush_bits);
wmb();
ctl->flush_bits = 0;
if (ctl->display_fnc)
ret = ctl->display_fnc(ctl, arg); /* kickoff */
if (ret)
pr_warn("error displaying frame\n");
ctl->play_cnt++;
if (perf_update == MDSS_MDP_PERF_UPDATE_LATE)
mdss_mdp_ctl_perf_commit(update_flags);
done:
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF, false);
mutex_unlock(&ctl->lock);
return ret;
}
