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OMAPDSS: LS037V7DW01: handle gpios in panel driver

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Move the GPIO handling from board file's platform callbacks to the panel
driver, which gets the gpios via platform data.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2013-04-03 11:39:19 +03:00
parent 7e930086e7
commit 3103098545
1 changed files with 60 additions and 11 deletions
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71
drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
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@ -23,11 +23,10 @@
#include <linux/fb.h> #include <linux/fb.h>
#include <linux/err.h> #include <linux/err.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/gpio.h>
#include <video/omapdss.h> #include <video/omapdss.h>
#include <video/omap-panel-data.h>
struct sharp_data {
};
static struct omap_video_timings sharp_ls_timings = { static struct omap_video_timings sharp_ls_timings = {
.x_res = 480, .x_res = 480,
@ -50,31 +49,67 @@ static struct omap_video_timings sharp_ls_timings = {
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES, .sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
}; };
static inline struct panel_sharp_ls037v7dw01_data
*get_panel_data(const struct omap_dss_device *dssdev)
{
return (struct panel_sharp_ls037v7dw01_data *) dssdev->data;
}
static int sharp_ls_panel_probe(struct omap_dss_device *dssdev) static int sharp_ls_panel_probe(struct omap_dss_device *dssdev)
{ {
struct sharp_data *sd; struct panel_sharp_ls037v7dw01_data *pd = get_panel_data(dssdev);
int r;
if (!pd)
return -EINVAL;
dssdev->panel.timings = sharp_ls_timings; dssdev->panel.timings = sharp_ls_timings;
sd = kzalloc(sizeof(*sd), GFP_KERNEL); if (gpio_is_valid(pd->mo_gpio)) {
if (!sd) r = devm_gpio_request_one(&dssdev->dev, pd->mo_gpio,
return -ENOMEM; GPIOF_OUT_INIT_LOW, "lcd MO");
if (r)
return r;
}
dev_set_drvdata(&dssdev->dev, sd); if (gpio_is_valid(pd->lr_gpio)) {
r = devm_gpio_request_one(&dssdev->dev, pd->lr_gpio,
GPIOF_OUT_INIT_HIGH, "lcd LR");
if (r)
return r;
}
if (gpio_is_valid(pd->ud_gpio)) {
r = devm_gpio_request_one(&dssdev->dev, pd->ud_gpio,
GPIOF_OUT_INIT_HIGH, "lcd UD");
if (r)
return r;
}
if (gpio_is_valid(pd->resb_gpio)) {
r = devm_gpio_request_one(&dssdev->dev, pd->resb_gpio,
GPIOF_OUT_INIT_LOW, "lcd RESB");
if (r)
return r;
}
if (gpio_is_valid(pd->ini_gpio)) {
r = devm_gpio_request_one(&dssdev->dev, pd->ini_gpio,
GPIOF_OUT_INIT_LOW, "lcd INI");
if (r)
return r;
}
return 0; return 0;
} }
static void __exit sharp_ls_panel_remove(struct omap_dss_device *dssdev) static void __exit sharp_ls_panel_remove(struct omap_dss_device *dssdev)
{ {
struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
kfree(sd);
} }
static int sharp_ls_power_on(struct omap_dss_device *dssdev) static int sharp_ls_power_on(struct omap_dss_device *dssdev)
{ {
struct panel_sharp_ls037v7dw01_data *pd = get_panel_data(dssdev);
int r = 0; int r = 0;
if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
@ -96,6 +131,12 @@ static int sharp_ls_power_on(struct omap_dss_device *dssdev)
goto err1; goto err1;
} }
if (gpio_is_valid(pd->resb_gpio))
gpio_set_value_cansleep(pd->resb_gpio, 1);
if (gpio_is_valid(pd->ini_gpio))
gpio_set_value_cansleep(pd->ini_gpio, 1);
return 0; return 0;
err1: err1:
omapdss_dpi_display_disable(dssdev); omapdss_dpi_display_disable(dssdev);
@ -105,9 +146,17 @@ err0:
static void sharp_ls_power_off(struct omap_dss_device *dssdev) static void sharp_ls_power_off(struct omap_dss_device *dssdev)
{ {
struct panel_sharp_ls037v7dw01_data *pd = get_panel_data(dssdev);
if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
return; return;
if (gpio_is_valid(pd->ini_gpio))
gpio_set_value_cansleep(pd->ini_gpio, 0);
if (gpio_is_valid(pd->resb_gpio))
gpio_set_value_cansleep(pd->resb_gpio, 0);
if (dssdev->platform_disable) if (dssdev->platform_disable)
dssdev->platform_disable(dssdev); dssdev->platform_disable(dssdev);