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Commit f5d477c6 authored by Tharun Raj Soma's avatar Tharun Raj Soma
Browse files

drm/msm/dsi-staging: add lp11-init support for DRM DSI driver 



Some panels have requirement to toggle the reset gpio pin
before sending panel init command. This change provides support
to parse this lp11-init property from panel dtsi file. When there
is power off, lp11-init logic is disabled so that panel off
sequence is not changed.

Change-Id: I1f01b65010a00cba593f94c71dcab134cb1dd758
Signed-off-by: default avatarTharun Raj Soma <tsoma@codeaurora.org>
parent c091c7a8

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

+8 −15
Original line number Diff line number Diff line
@@ -1771,6 +1771,9 @@ static int dsi_panel_parse_misc_features(struct dsi_panel *panel, 


	panel->sync_broadcast_en = of_property_read_bool(of_node,

			"qcom,cmd-sync-wait-broadcast");



	panel->lp11_init = of_property_read_bool(of_node,

			"qcom,mdss-dsi-lp11-init");

	return 0;

}
@@ -3746,14 +3749,6 @@ int dsi_panel_unprepare(struct dsi_panel *panel) 
		goto error;

	}



	if (panel->lp11_init) {

		rc = dsi_panel_power_off(panel);

		if (rc) {

			pr_err("[%s] panel power_Off failed, rc=%d\n",

			       panel->name, rc);

			goto error;

		}

	}

error:

	mutex_unlock(&panel->panel_lock);

	return rc;
@@ -3773,14 +3768,12 @@ int dsi_panel_post_unprepare(struct dsi_panel *panel) 


	mutex_lock(&panel->panel_lock);



	if (!panel->lp11_init) {

	rc = dsi_panel_power_off(panel);

	if (rc) {

		pr_err("[%s] panel power_Off failed, rc=%d\n",

		       panel->name, rc);

		goto error;

	}

	}

error:

	mutex_unlock(&panel->panel_lock);

	return rc;