Hi,
On Mon, Dec 02, 2019 at 08:32:22PM +0100, Sam Ravnborg wrote:
> Use the backlight support in drm_panel to simplify the driver.
> While touching the include files sort them
> and divide them up in blocks.
>
> Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> Cc: "Guido Günther" <agx@xxxxxxxxxxx>
> Cc: Purism Kernel Team <kernel@xxxxxxx>
> Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
> ---
> .../drm/panel/panel-rocktech-jh057n00900.c | 24 +++++++++----------
> 1 file changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c b/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
> index 3a4f1c0fce86..38ff742bc120 100644
> --- a/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
> +++ b/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
> @@ -5,20 +5,22 @@
> * Copyright (C) Purism SPC 2019
> */
>
> -#include <drm/drm_mipi_dsi.h>
> -#include <drm/drm_modes.h>
> -#include <drm/drm_panel.h>
> -#include <drm/drm_print.h>
> -#include <linux/backlight.h>
> #include <linux/debugfs.h>
> #include <linux/delay.h>
> #include <linux/gpio/consumer.h>
> #include <linux/media-bus-format.h>
> +#include <linux/mod_devicetable.h>
> #include <linux/module.h>
> #include <linux/regulator/consumer.h>
> +
> #include <video/display_timing.h>
> #include <video/mipi_display.h>
>
> +#include <drm/drm_mipi_dsi.h>
> +#include <drm/drm_modes.h>
> +#include <drm/drm_panel.h>
> +#include <drm/drm_print.h>
> +
> #define DRV_NAME "panel-rocktech-jh057n00900"
>
> /* Manufacturer specific Commands send via DSI */
> @@ -47,7 +49,6 @@ struct jh057n {
> struct device *dev;
> struct drm_panel panel;
> struct gpio_desc *reset_gpio;
> - struct backlight_device *backlight;
> struct regulator *vcc;
> struct regulator *iovcc;
> bool prepared;
> @@ -152,7 +153,7 @@ static int jh057n_enable(struct drm_panel *panel)
> return ret;
> }
>
> - return backlight_enable(ctx->backlight);
> + return 0;
> }
>
> static int jh057n_disable(struct drm_panel *panel)
> @@ -160,7 +161,6 @@ static int jh057n_disable(struct drm_panel *panel)
> struct jh057n *ctx = panel_to_jh057n(panel);
> struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
>
> - backlight_disable(ctx->backlight);
> return mipi_dsi_dcs_set_display_off(dsi);
> }
>
> @@ -321,10 +321,6 @@ static int jh057n_probe(struct mipi_dsi_device *dsi)
> dsi->mode_flags = MIPI_DSI_MODE_VIDEO |
> MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
>
> - ctx->backlight = devm_of_find_backlight(dev);
> - if (IS_ERR(ctx->backlight))
> - return PTR_ERR(ctx->backlight);
> -
> ctx->vcc = devm_regulator_get(dev, "vcc");
> if (IS_ERR(ctx->vcc)) {
> ret = PTR_ERR(ctx->vcc);
> @@ -347,6 +343,10 @@ static int jh057n_probe(struct mipi_dsi_device *dsi)
> drm_panel_init(&ctx->panel, dev, &jh057n_drm_funcs,
> DRM_MODE_CONNECTOR_DSI);
>
> + ret = drm_panel_of_backlight(&ctx->panel);
> + if (ret)
> + return ret;
> +
> drm_panel_add(&ctx->panel);
>
> ret = mipi_dsi_attach(dsi);
Reviewed-by: Guido Günther <agx@xxxxxxxxxxx>
> --
> 2.20.1
>
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