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Commit 0f9abb75 authored by Veera Sundaram Sankaran's avatar Veera Sundaram Sankaran Committed by Gerrit - the friendly Code Review server
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drm/msm/dsi: add DSC slice-per-pkt restriction 



Add validation check while parsing the device tree
to avoid DSC slice-per-pkt beyond 2 as it is not
supported.

Change-Id: I139cc79a8bd10a06c6913159e8ca583607917ab1
Signed-off-by: default avatarVeera Sundaram Sankaran <veeras@codeaurora.org>
parent 3f3286e8

drivers/gpu/drm/msm/dsi-staging/dsi_panel.c

+4 −2
Original line number Diff line number Diff line
@@ -2345,11 +2345,13 @@ static int dsi_panel_parse_dsc_params(struct dsi_display_mode *mode, 
	priv_info->dsc.pic_width = mode->timing.h_active;

	priv_info->dsc.pic_height = mode->timing.v_active;



	rc = utils->read_u32(utils->data, "qcom,mdss-dsc-slice-per-pkt",

			&data);

	rc = utils->read_u32(utils->data, "qcom,mdss-dsc-slice-per-pkt", &data);

	if (rc) {

		pr_err("failed to parse qcom,mdss-dsc-slice-per-pkt\n");

		goto error;

	} else if (!data || (data > 2)) {

		pr_err("invalid dsc slice-per-pkt:%d\n", data);

		goto error;

	}

	priv_info->dsc.slice_per_pkt = data;