diff options
Diffstat (limited to 'drivers/gpu/drm/panel/panel-samsung-ld9040.c')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-samsung-ld9040.c | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/drivers/gpu/drm/panel/panel-samsung-ld9040.c b/drivers/gpu/drm/panel/panel-samsung-ld9040.c index 01eb211f32f7..9f438683a6f6 100644 --- a/drivers/gpu/drm/panel/panel-samsung-ld9040.c +++ b/drivers/gpu/drm/panel/panel-samsung-ld9040.c @@ -8,6 +8,7 @@ * Andrzej Hajda <a.hajda@samsung.com> */ +#include <linux/backlight.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/module.h> @@ -180,15 +181,15 @@ static void ld9040_init(struct ld9040 *ctx) { ld9040_dcs_write_seq_static(ctx, MCS_USER_SETTING, 0x5a, 0x5a); ld9040_dcs_write_seq_static(ctx, MCS_PANEL_CONDITION, - 0x05, 0x65, 0x96, 0x71, 0x7d, 0x19, 0x3b, 0x0d, - 0x19, 0x7e, 0x0d, 0xe2, 0x00, 0x00, 0x7e, 0x7d, - 0x07, 0x07, 0x20, 0x20, 0x20, 0x02, 0x02); + 0x05, 0x5e, 0x96, 0x6b, 0x7d, 0x0d, 0x3f, 0x00, + 0x00, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x07, 0x05, 0x1f, 0x1f, 0x1f, 0x00, 0x00); ld9040_dcs_write_seq_static(ctx, MCS_DISPCTL, - 0x02, 0x08, 0x08, 0x10, 0x10); + 0x02, 0x06, 0x0a, 0x10, 0x10); ld9040_dcs_write_seq_static(ctx, MCS_MANPWR, 0x04); ld9040_dcs_write_seq_static(ctx, MCS_POWER_CTRL, 0x0a, 0x87, 0x25, 0x6a, 0x44, 0x02, 0x88); - ld9040_dcs_write_seq_static(ctx, MCS_ELVSS_ON, 0x0d, 0x00, 0x16); + ld9040_dcs_write_seq_static(ctx, MCS_ELVSS_ON, 0x0f, 0x00, 0x16); ld9040_dcs_write_seq_static(ctx, MCS_GTCON, 0x09, 0x00, 0x00); ld9040_brightness_set(ctx); ld9040_dcs_write_seq_static(ctx, MIPI_DCS_EXIT_SLEEP_MODE); @@ -310,8 +311,30 @@ static int ld9040_parse_dt(struct ld9040 *ctx) return 0; } +static int ld9040_bl_update_status(struct backlight_device *dev) +{ + struct ld9040 *ctx = bl_get_data(dev); + + ctx->brightness = backlight_get_brightness(dev); + ld9040_brightness_set(ctx); + + return 0; +} + +static const struct backlight_ops ld9040_bl_ops = { + .update_status = ld9040_bl_update_status, +}; + +static const struct backlight_properties ld9040_bl_props = { + .type = BACKLIGHT_RAW, + .scale = BACKLIGHT_SCALE_NON_LINEAR, + .max_brightness = ARRAY_SIZE(ld9040_gammas) - 1, + .brightness = ARRAY_SIZE(ld9040_gammas) - 1, +}; + static int ld9040_probe(struct spi_device *spi) { + struct backlight_device *bldev; struct device *dev = &spi->dev; struct ld9040 *ctx; int ret; @@ -323,7 +346,7 @@ static int ld9040_probe(struct spi_device *spi) spi_set_drvdata(spi, ctx); ctx->dev = dev; - ctx->brightness = ARRAY_SIZE(ld9040_gammas) - 1; + ctx->brightness = ld9040_bl_props.brightness; ret = ld9040_parse_dt(ctx); if (ret < 0) @@ -353,6 +376,12 @@ static int ld9040_probe(struct spi_device *spi) drm_panel_init(&ctx->panel, dev, &ld9040_drm_funcs, DRM_MODE_CONNECTOR_DPI); + bldev = devm_backlight_device_register(dev, dev_name(dev), dev, + ctx, &ld9040_bl_ops, + &ld9040_bl_props); + if (IS_ERR(bldev)) + return PTR_ERR(bldev); + drm_panel_add(&ctx->panel); return 0; |