diff options
Diffstat (limited to 'drivers/video/omap2/displays/panel-lgphilips-lb035q02.c')
-rw-r--r-- | drivers/video/omap2/displays/panel-lgphilips-lb035q02.c | 58 |
1 files changed, 39 insertions, 19 deletions
diff --git a/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c b/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c index 6e5abe8fd2d..4ea6548c0ae 100644 --- a/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c +++ b/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c @@ -20,8 +20,10 @@ #include <linux/delay.h> #include <linux/spi/spi.h> #include <linux/mutex.h> +#include <linux/gpio.h> #include <video/omapdss.h> +#include <video/omap-panel-data.h> struct lb035q02_data { struct mutex lock; @@ -48,9 +50,16 @@ static struct omap_video_timings lb035q02_timings = { .sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES, }; +static inline struct panel_generic_dpi_data +*get_panel_data(const struct omap_dss_device *dssdev) +{ + return (struct panel_generic_dpi_data *) dssdev->data; +} + static int lb035q02_panel_power_on(struct omap_dss_device *dssdev) { - int r; + struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev); + int r, i; if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) return 0; @@ -62,54 +71,65 @@ static int lb035q02_panel_power_on(struct omap_dss_device *dssdev) if (r) goto err0; - if (dssdev->platform_enable) { - r = dssdev->platform_enable(dssdev); - if (r) - goto err1; + for (i = 0; i < panel_data->num_gpios; ++i) { + gpio_set_value_cansleep(panel_data->gpios[i], + panel_data->gpio_invert[i] ? 0 : 1); } return 0; -err1: - omapdss_dpi_display_disable(dssdev); + err0: return r; } static void lb035q02_panel_power_off(struct omap_dss_device *dssdev) { + struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev); + int i; + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) return; - if (dssdev->platform_disable) - dssdev->platform_disable(dssdev); + for (i = panel_data->num_gpios - 1; i >= 0; --i) { + gpio_set_value_cansleep(panel_data->gpios[i], + panel_data->gpio_invert[i] ? 1 : 0); + } omapdss_dpi_display_disable(dssdev); } static int lb035q02_panel_probe(struct omap_dss_device *dssdev) { + struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev); struct lb035q02_data *ld; - int r; + int r, i; + + if (!panel_data) + return -EINVAL; dssdev->panel.timings = lb035q02_timings; - ld = kzalloc(sizeof(*ld), GFP_KERNEL); - if (!ld) { - r = -ENOMEM; - goto err; + ld = devm_kzalloc(&dssdev->dev, sizeof(*ld), GFP_KERNEL); + if (!ld) + return -ENOMEM; + + for (i = 0; i < panel_data->num_gpios; ++i) { + r = devm_gpio_request_one(&dssdev->dev, panel_data->gpios[i], + panel_data->gpio_invert[i] ? + GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW, + "panel gpio"); + if (r) + return r; } + mutex_init(&ld->lock); dev_set_drvdata(&dssdev->dev, ld); + return 0; -err: - return r; } static void lb035q02_panel_remove(struct omap_dss_device *dssdev) { - struct lb035q02_data *ld = dev_get_drvdata(&dssdev->dev); - - kfree(ld); } static int lb035q02_panel_enable(struct omap_dss_device *dssdev) |