From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 20 Dec 2010 14:26:22 +0000 (+0200)
Subject: OMAP: DSS2: DSI: ensure VDDS_DSI is disabled on exit
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=88257b26953f73f30acf49587cb42b84be43c587;p=deliverable%2Flinux.git

OMAP: DSS2: DSI: ensure VDDS_DSI is disabled on exit

The panel drivers can leave the VDDS_DSI regulator enabled, even when
the panel is disabled, to ensure that the DSI pins are powered.

This patch ensures that VDDS_DSI is disabled on DSI module unload.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index fcda46c34d1c..f89994d7b000 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4090,6 +4090,11 @@ err1:
 static void dsi_exit(void)
 {
 	if (dsi.vdds_dsi_reg != NULL) {
+		if (dsi.vdds_dsi_enabled) {
+			regulator_disable(dsi.vdds_dsi_reg);
+			dsi.vdds_dsi_enabled = false;
+		}
+
 		regulator_put(dsi.vdds_dsi_reg);
 		dsi.vdds_dsi_reg = NULL;
 	}