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OMAPDSS: panel sharp-ls037v7dw01 DT support 

Add DT support for sharp-ls037v7dw01.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
hifive-unleashed-5.1
Tony Lindgren 2014-05-16 09:45:09 +03:00 committed by Tomi Valkeinen
parent 9522f9fe86
commit be88c16a22
1 changed files with 99 additions and 3 deletions
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102
drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c
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@ -12,15 +12,18 @@
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/regulator/consumer.h>
#include <video/omapdss.h>
#include <video/omap-panel-data.h>
struct panel_drv_data {
struct omap_dss_device dssdev;
struct omap_dss_device *in;
struct regulator *vcc;
int data_lines;
@ -95,12 +98,21 @@ static int sharp_ls_enable(struct omap_dss_device *dssdev)
if (omapdss_device_is_enabled(dssdev))
return 0;
in->ops.dpi->set_data_lines(in, ddata->data_lines);
if (ddata->data_lines)
in->ops.dpi->set_data_lines(in, ddata->data_lines);
in->ops.dpi->set_timings(in, &ddata->videomode);
if (ddata->vcc) {
r = regulator_enable(ddata->vcc);
if (r != 0)
return r;
}
r = in->ops.dpi->enable(in);
if (r)
if (r) {
regulator_disable(ddata->vcc);
return r;
}
/* wait couple of vsyncs until enabling the LCD */
msleep(50);
@ -136,6 +148,9 @@ static void sharp_ls_disable(struct omap_dss_device *dssdev)
in->ops.dpi->disable(in);
if (ddata->vcc)
regulator_disable(ddata->vcc);
dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
}
@ -249,6 +264,75 @@ static int sharp_ls_probe_pdata(struct platform_device *pdev)
return 0;
}
static int sharp_ls_get_gpio_of(struct device *dev, int index, int val,
const char *desc, struct gpio_desc **gpiod)
{
struct gpio_desc *gd;
int r;
*gpiod = NULL;
gd = devm_gpiod_get_index(dev, desc, index);
if (IS_ERR(gd))
return PTR_ERR(gd) == -ENOENT ? 0 : PTR_ERR(gd);
r = gpiod_direction_output(gd, val);
if (r)
return r;
*gpiod = gd;
return 0;
}
static int sharp_ls_probe_of(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct device_node *node = pdev->dev.of_node;
struct omap_dss_device *in;
int r;
ddata->vcc = devm_regulator_get(&pdev->dev, "envdd");
if (IS_ERR(ddata->vcc)) {
dev_err(&pdev->dev, "failed to get regulator\n");
return PTR_ERR(ddata->vcc);
}
/* lcd INI */
r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "enable", &ddata->ini_gpio);
if (r)
return r;
/* lcd RESB */
r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "reset", &ddata->resb_gpio);
if (r)
return r;
/* lcd MO */
r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "mode", &ddata->mo_gpio);
if (r)
return r;
/* lcd LR */
r = sharp_ls_get_gpio_of(&pdev->dev, 1, 1, "mode", &ddata->lr_gpio);
if (r)
return r;
/* lcd UD */
r = sharp_ls_get_gpio_of(&pdev->dev, 2, 1, "mode", &ddata->ud_gpio);
if (r)
return r;
in = omapdss_of_find_source_for_first_ep(node);
if (IS_ERR(in)) {
dev_err(&pdev->dev, "failed to find video source\n");
return PTR_ERR(in);
}
ddata->in = in;
return 0;
}
static int sharp_ls_probe(struct platform_device *pdev)
{
struct panel_drv_data *ddata;
@ -265,6 +349,10 @@ static int sharp_ls_probe(struct platform_device *pdev)
r = sharp_ls_probe_pdata(pdev);
if (r)
return r;
} else if (pdev->dev.of_node) {
r = sharp_ls_probe_of(pdev);
if (r)
return r;
} else {
return -ENODEV;
}
@ -308,12 +396,20 @@ static int __exit sharp_ls_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id sharp_ls_of_match[] = {
{ .compatible = "omapdss,sharp,ls037v7dw01", },
{},
};
MODULE_DEVICE_TABLE(of, sharp_ls_of_match);
static struct platform_driver sharp_ls_driver = {
.probe = sharp_ls_probe,
.remove = __exit_p(sharp_ls_remove),
.driver = {
.name = "panel-sharp-ls037v7dw01",
.owner = THIS_MODULE,
.of_match_table = sharp_ls_of_match,
},
};