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From feaf5b69b627c85e3ea40accf50ab5771125cf00 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Date: Fri, 29 May 2009 12:07:27 +0300
Subject: [PATCH 093/146] DSS2: Sharp panel: use regulator fw
---
.../video/omap2/displays/panel-sharp-ls037v7dw01.c | 38 ++++++++++++++++++++
1 files changed, 38 insertions(+), 0 deletions(-)
diff --git a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
index 6b93ea5..cb8ce34 100644
--- a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
+++ b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
@@ -19,9 +19,20 @@
#include <linux/module.h>
#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/err.h>
#include <mach/display.h>
+struct sharp_data {
+ /* XXX This regulator should actually be in SDP board file, not here,
+ * as it doesn't actually power the LCD, but something else that
+ * affects the output to LCD (I think. Somebody clarify). It doesn't do
+ * harm here, as SDP is the only board using this currently */
+ struct regulator *vdvi_reg;
+};
+
static struct omap_video_timings sharp_ls_timings = {
.x_res = 480,
.y_res = 640,
@@ -39,25 +50,48 @@ static struct omap_video_timings sharp_ls_timings = {
static int sharp_ls_panel_probe(struct omap_dss_device *dssdev)
{
+ struct sharp_data *sd;
+
dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
OMAP_DSS_LCD_IHS;
dssdev->panel.acb = 0x28;
dssdev->panel.timings = sharp_ls_timings;
+ sd = kzalloc(sizeof(*sd), GFP_KERNEL);
+ if (!sd)
+ return -ENOMEM;
+
+ dev_set_drvdata(&dssdev->dev, sd);
+
+ sd->vdvi_reg = regulator_get(&dssdev->dev, "vdvi");
+ if (IS_ERR(sd->vdvi_reg)) {
+ kfree(sd);
+ printk("failed to get VDVI regulator\n");
+ return PTR_ERR(sd->vdvi_reg);
+ }
+
return 0;
}
static void sharp_ls_panel_remove(struct omap_dss_device *dssdev)
{
+ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
+
+ regulator_put(sd->vdvi_reg);
+
+ kfree(sd);
}
static int sharp_ls_panel_enable(struct omap_dss_device *dssdev)
{
+ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
int r = 0;
/* wait couple of vsyncs until enabling the LCD */
msleep(50);
+ regulator_enable(sd->vdvi_reg);
+
if (dssdev->platform_enable)
r = dssdev->platform_enable(dssdev);
@@ -66,9 +100,13 @@ static int sharp_ls_panel_enable(struct omap_dss_device *dssdev)
static void sharp_ls_panel_disable(struct omap_dss_device *dssdev)
{
+ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
+
if (dssdev->platform_disable)
dssdev->platform_disable(dssdev);
+ regulator_disable(sd->vdvi_reg);
+
/* wait at least 5 vsyncs after disabling the LCD */
msleep(100);
--
1.6.2.4
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