From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 14 Apr 2011 08:42:22 +0000 (+0300)
Subject: OMAP: DSS2: DSI: Remove CIO LDO status check
X-Git-Tag: v3.0-rc1~166^2~20^2~58
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=95861368e3eb2180dc9f00e916a4ba6f5e1fe4ce;p=karo-tx-linux.git

OMAP: DSS2: DSI: Remove CIO LDO status check

CIO LDO status check seems to be broken on OMAP3630+ chips, and it's
also quite unclear what LDO status actually tells and when its status
changes.

This patch removes the whole check on the grounds that if there's a
problem with the LDO, we should anyway catch the problem as we check the
CIO power state and CIO reset status.

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 d05f8997e02b..4223164f6507 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1952,14 +1952,6 @@ static int dsi_complexio_init(struct omap_dss_device *dssdev)
 		goto err;
 	}
 
-	if (dss_has_feature(FEAT_DSI_LDO_STATUS)) {
-		if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 21, 1) != 1) {
-			DSSERR("ComplexIO LDO power down.\n");
-			r = -ENODEV;
-			goto err;
-		}
-	}
-
 	dsi_complexio_timings();
 
 	/*
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 5a81c652e604..7da798acee93 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -253,7 +253,7 @@ static struct omap_dss_features omap3430_dss_features = {
 		FEAT_LCDENABLESIGNAL | FEAT_PCKFREEENABLE |
 		FEAT_FUNCGATED | FEAT_ROWREPEATENABLE |
 		FEAT_LINEBUFFERSPLIT | FEAT_RESIZECONF |
-		FEAT_DSI_PLL_FREQSEL | FEAT_DSI_LDO_STATUS,
+		FEAT_DSI_PLL_FREQSEL,
 
 	.num_mgrs = 2,
 	.num_ovls = 3,
@@ -273,7 +273,7 @@ static struct omap_dss_features omap3630_dss_features = {
 		FEAT_PRE_MULT_ALPHA | FEAT_FUNCGATED |
 		FEAT_ROWREPEATENABLE | FEAT_LINEBUFFERSPLIT |
 		FEAT_RESIZECONF | FEAT_DSI_PLL_PWR_BUG |
-		FEAT_DSI_PLL_FREQSEL |FEAT_DSI_LDO_STATUS,
+		FEAT_DSI_PLL_FREQSEL,
 
 	.num_mgrs = 2,
 	.num_ovls = 3,
diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
index d03f558d181b..1093e8daaa66 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -43,9 +43,8 @@ enum dss_feat_id {
 	/* DSI-PLL power command 0x3 is not working */
 	FEAT_DSI_PLL_PWR_BUG		= 1 << 13,
 	FEAT_DSI_PLL_FREQSEL		= 1 << 14,
-	FEAT_DSI_LDO_STATUS		= 1 << 15,
-	FEAT_DSI_DCS_CMD_CONFIG_VC	= 1 << 16,
-	FEAT_DSI_VC_OCP_WIDTH		= 1 << 17,
+	FEAT_DSI_DCS_CMD_CONFIG_VC	= 1 << 15,
+	FEAT_DSI_VC_OCP_WIDTH		= 1 << 16,
 };
 
 /* DSS register field id */