Merge "msm: mdss: Prevent mixer GC programming if it is currently enabled" (5cc69b0b) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/video/msm/mdss/mdss_mdp_pp.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -1483,6 +1483,15 @@ static int pp_mixer_setup(u32 disp_num,
		pp_sts = &mdss_pp_res->pp_disp_sts[disp_num];
		/* GC_LUT is in layer mixer */
		if (flags & PP_FLAGS_DIRTY_ARGC) {
		/*
		* GC LUT should be disabled before being rewritten. Skip
		* GC LUT programming if it is already enabled.
		*/
		if (pp_sts->argc_sts & PP_STS_ENABLE) {
		pr_debug("LM %d GC already enabled, skipping programming\n",
		mixer->num);
		return 0;
		}
		if (pp_ops[GC].pp_set_config) {
		if (mdata->pp_block_off.lm_pgc_off == U32_MAX) {
		pr_err("invalid pgc offset %d\n", U32_MAX);