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Commit 9f9e334e authored by Ujwal Patel's avatar Ujwal Patel
Browse files

msm: mdss: disable VIG3 and RGB3 pipes for APQ8084 



If VIG3 and RGB3 pipes are used, they are causing lot of under-runs.
Temporarily disable their use until root cause is identified.

Change-Id: If0455337e0f88a36d25bde06ac3a54ac82586f42
Signed-off-by: default avatarUjwal Patel <ujwalp@codeaurora.org>
parent f28186f6

arch/arm/boot/dts/qti/apq8084-mdss.dtsi

+5 −6
Original line number Diff line number Diff line
@@ -39,19 +39,18 @@ 
		qcom,max-clk-rate = <320000000>;



		qcom,mdss-pipe-vig-off = <0x00001200 0x00001600

					  0x00001A00 0x00001E00>;

					  0x00001A00>;

		qcom,mdss-pipe-rgb-off = <0x00002200 0x00002600

					  0x00002A00 0x00002E00>;

					  0x00002A00>;

		qcom,mdss-pipe-dma-off = <0x00003200 0x00003600>;



		qcom,mdss-pipe-vig-fetch-id = <1 4 7 19>;

		qcom,mdss-pipe-rgb-fetch-id = <16 17 18 22>;

		qcom,mdss-pipe-vig-fetch-id = <1 4 7>;

		qcom,mdss-pipe-rgb-fetch-id = <16 17 18>;

		qcom,mdss-pipe-dma-fetch-id = <10 13>;



		qcom,mdss-pipe-rgb-fixed-mmb =	<2 0 1>,

						<2 2 3>,

						<2 4 5>,

						<2 6 7>;

						<2 4 5>;



		qcom,mdss-smp-data = <44 8192>;

drivers/video/msm/mdss/mdss_mdp.c

+9 −0
Original line number Diff line number Diff line
@@ -955,6 +955,15 @@ int mdss_hw_init(struct mdss_data_type *mdata) 
	mdata->mdp_rev = MDSS_MDP_REG_READ(MDSS_MDP_REG_HW_VERSION);

	pr_info_once("MDP Rev=%x\n", mdata->mdp_rev);



	/*

	 * This smp workaround is temporary until under-run root cause

	 * is identified and fix is implemented.

	 */

	if (mdata->mdp_rev == MDSS_MDP_HW_REV_103) {

		set_bit(0x6, mdata->mmb_alloc_map);

		set_bit(0x7, mdata->mmb_alloc_map);

	}



	/* disable hw underrun recovery */

	writel_relaxed(0x0, mdata->mdp_base +

			MDSS_MDP_REG_VIDEO_INTF_UNDERFLOW_CTL);