Hi,
On Wed, Jul 01, 2020 at 12:31:21PM +0200, Ondrej Jirman wrote:
> Calling sleep out and display on is a controller specific part
> of the initialization process. Move it out of the panel specific
> initialization function to the enable callback.
Reviewed-by: Guido Günther <a...@sigxcpu.org>
>
> Signed-off-by: Ondrej Jirman <meg...@megous.com>
> Reviewed-by: Linus Walleij <linus.wall...@linaro.org>
> ---
> drivers/gpu/drm/panel/panel-sitronix-st7703.c | 33 ++++++++++---------
> 1 file changed, 18 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c
> b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
> index d03aab10cfef..cdbf7dfb4dd4 100644
> --- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c
> +++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
> @@ -84,8 +84,6 @@ static inline struct st7703 *panel_to_st7703(struct
> drm_panel *panel)
> static int jh057n_init_sequence(struct st7703 *ctx)
> {
> struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
> - struct device *dev = ctx->dev;
> - int ret;
>
> /*
> * Init sequence was supplied by the panel vendor. Most of the commands
> @@ -136,20 +134,7 @@ static int jh057n_init_sequence(struct st7703 *ctx)
> 0x18, 0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41,
> 0x37, 0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10,
> 0x11, 0x18);
> - msleep(20);
> -
> - ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
> - if (ret < 0) {
> - DRM_DEV_ERROR(dev, "Failed to exit sleep mode: %d\n", ret);
> - return ret;
> - }
> - /* Panel is operational 120 msec after reset */
> - msleep(60);
> - ret = mipi_dsi_dcs_set_display_on(dsi);
> - if (ret)
> - return ret;
>
> - DRM_DEV_DEBUG_DRIVER(dev, "Panel init sequence done\n");
> return 0;
> }
>
> @@ -181,6 +166,7 @@ struct st7703_panel_desc jh057n00900_panel_desc = {
> static int st7703_enable(struct drm_panel *panel)
> {
> struct st7703 *ctx = panel_to_st7703(panel);
> + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
> int ret;
>
> ret = ctx->desc->init_sequence(ctx);
> @@ -190,6 +176,23 @@ static int st7703_enable(struct drm_panel *panel)
> return ret;
> }
>
> + msleep(20);
> +
> + ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
> + if (ret < 0) {
> + DRM_DEV_ERROR(ctx->dev, "Failed to exit sleep mode: %d\n", ret);
> + return ret;
> + }
> +
> + /* Panel is operational 120 msec after reset */
> + msleep(60);
> +
> + ret = mipi_dsi_dcs_set_display_on(dsi);
> + if (ret)
> + return ret;
> +
> + DRM_DEV_DEBUG_DRIVER(ctx->dev, "Panel init sequence done\n");
> +
> return 0;
> }
>
> --
> 2.27.0
>
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