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Commit e3a41a9f authored by Shashank Babu Chinta Venkata's avatar Shashank Babu Chinta Venkata
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drm/msm/dsi-staging: ignore panel disable failure 



When DSI controller is in bad state, sending panel off commands
cannot be guranteed. The DSI controller goes for a complete reset
during display enable. Thus, ignore failures while sending panel off
commands during display disable.

Change-Id: Ibe1f551e43de2a7981adb8ac59a60dd26225edff
Signed-off-by: default avatarShashank Babu Chinta Venkata <sbchin@codeaurora.org>
parent 92a2b707

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

+8 −3
Original line number Diff line number Diff line
@@ -3755,14 +3755,19 @@ int dsi_panel_disable(struct dsi_panel *panel) 
	if (!atomic_read(&panel->esd_recovery_pending)) {

		rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_OFF);

		if (rc) {

			pr_err("[%s] failed to send DSI_CMD_SET_OFF cmds, rc=%d\n",

			/*

			 * Sending panel off commands may fail when  DSI

			 * controller is in a bad state. These failures can be

			 * ignored since controller will go for full reset on

			 * subsequent display enable anyway.

			 */

			pr_warn_ratelimited("[%s] failed to send DSI_CMD_SET_OFF cmds, rc=%d\n",

					panel->name, rc);

			goto error;

			rc = 0;

		}

	}

	panel->panel_initialized = false;



error:

	mutex_unlock(&panel->panel_lock);

	return rc;

}