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[v3,08/21] OMAP: DSS2: Taal: Improve taal_power_on() error handling

Message ID aa1e310d0d385db39b5d53ba4d3dcf02b7e2f47f.1273067195.git.ext-jani.1.nikula@nokia.com (mailing list archive)
State New, archived
Delegated to: Tomi Valkeinen
Headers show

Commit Message

Jani Nikula May 5, 2010, 2:27 p.m. UTC 
None
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Patch

diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index d0701e2..a093eda 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -696,16 +696,32 @@  static int taal_power_on(struct omap_dss_device *dssdev)
 	if (id2 == 0x00 || id2 == 0xff || id2 == 0x81)
 		td->cabc_broken = true;
 
-	taal_dcs_write_1(DCS_BRIGHTNESS, 0xff);
-	taal_dcs_write_1(DCS_CTRL_DISPLAY, (1<<2) | (1<<5)); /* BL | BCTRL */
+	r = taal_dcs_write_1(DCS_BRIGHTNESS, 0xff);
+	if (r)
+		goto err;
 
-	taal_dcs_write_1(DCS_PIXEL_FORMAT, 0x7); /* 24bit/pixel */
+	r = taal_dcs_write_1(DCS_CTRL_DISPLAY,
+			(1<<2) | (1<<5));	/* BL | BCTRL */
+	if (r)
+		goto err;
 
-	taal_set_addr_mode(td->rotate, td->mirror);
-	if (!td->cabc_broken)
-		taal_dcs_write_1(DCS_WRITE_CABC, td->cabc_mode);
+	r = taal_dcs_write_1(DCS_PIXEL_FORMAT, 0x7); /* 24bit/pixel */
+	if (r)
+		goto err;
 
-	taal_dcs_write_0(DCS_DISPLAY_ON);
+	r = taal_set_addr_mode(td->rotate, td->mirror);
+	if (r)
+		goto err;
+
+	if (!td->cabc_broken) {
+		r = taal_dcs_write_1(DCS_WRITE_CABC, td->cabc_mode);
+		if (r)
+			goto err;
+	}
+
+	r = taal_dcs_write_0(DCS_DISPLAY_ON);
+	if (r)
+		goto err;
 
 	r = _taal_enable_te(dssdev, td->te_enabled);
 	if (r)