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Commit 5fcdabbf authored by Krishna Chaitanya Parimi's avatar Krishna Chaitanya Parimi
Browse files

msm: mdss: remove HIST LUT programming in mdss_hw_init 



mdss_hw_init is called for every suspend/resume and ctl restore.
This causes LUT programming done by CABL/SVI to be overridden in
ctl restore cases thereby causing primary display corruption.

There is no need to program a default for HIST LUT in mdss_hw_init
as programming is done from first commit post enablement. Remove
HIST LUT programming in mdss_hw_init.

Change-Id: I1ff563b3cee8d95eb845cd7e2fa4fddf9ac4e4be
Signed-off-by: default avatarKrishna Chaitanya Parimi <cparimi@codeaurora.org>
CRs-fixed: 972755
parent 676c9bc2

drivers/video/msm/mdss/mdss_mdp.c

+1 −19
Original line number Diff line number Diff line
@@ -1483,8 +1483,7 @@ static void mdss_hw_rev_init(struct mdss_data_type *mdata) 
 */

void mdss_hw_init(struct mdss_data_type *mdata)

{

	int i, j;

	char *offset;

	int i;

	struct mdss_mdp_pipe *vig;



	mdss_hw_rev_init(mdata);
@@ -1503,24 +1502,7 @@ void mdss_hw_init(struct mdss_data_type *mdata) 
		}

	}



	for (i = 0; i < mdata->ndspp; i++) {

		offset = mdata->mixer_intf[i].dspp_base +

				MDSS_MDP_REG_DSPP_HIST_LUT_BASE;

		for (j = 0; j < ENHIST_LUT_ENTRIES; j++)

			writel_relaxed(j, offset);



		/* swap */

		writel_relaxed(1, offset + 4);

	}

	vig = mdata->vig_pipes;

	for (i = 0; i < mdata->nvig_pipes; i++) {

		offset = vig[i].base +

			MDSS_MDP_REG_VIG_HIST_LUT_BASE;

		for (j = 0; j < ENHIST_LUT_ENTRIES; j++)

			writel_relaxed(j, offset);

		/* swap */

		writel_relaxed(1, offset + 16);

	}



	/* initialize csc matrix default value */

	for (i = 0; i < mdata->nvig_pipes; i++)