[PATCH] drm/panel: samsung-s6e3fa7: transition to mipi_dsi wrapped functions
Jessica Zhang
quic_jesszhan at quicinc.com
Fri Sep 6 22:28:48 UTC 2024
On 9/2/2024 12:10 AM, Tejas Vipin wrote:
> Changes the samsung-s6e3fa7 panel to use multi style functions for
> improved error handling.
>
> Signed-off-by: Tejas Vipin <tejasvipin76 at gmail.com>
Reviewed-by: Jessica Zhang <quic_jesszhan at quicinc.com>
> ---
> drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c | 71 ++++++-------------
> 1 file changed, 21 insertions(+), 50 deletions(-)
>
> diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c b/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c
> index 10bc8fb5f1f9..27a059b55ae5 100644
> --- a/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c
> +++ b/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c
> @@ -38,57 +38,38 @@ static void s6e3fa7_panel_reset(struct s6e3fa7_panel *ctx)
> usleep_range(10000, 11000);
> }
>
> -static int s6e3fa7_panel_on(struct s6e3fa7_panel *ctx)
> +static int s6e3fa7_panel_on(struct mipi_dsi_device *dsi)
> {
> - struct mipi_dsi_device *dsi = ctx->dsi;
> - struct device *dev = &dsi->dev;
> - int ret;
> + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
>
> - ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
> - if (ret < 0) {
> - dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
> - return ret;
> - }
> - msleep(120);
> + mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
> + mipi_dsi_msleep(&dsi_ctx, 120);
> + mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
>
> - ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
> - if (ret < 0) {
> - dev_err(dev, "Failed to set tear on: %d\n", ret);
> - return ret;
> - }
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf4,
> + 0xbb, 0x23, 0x19, 0x3a, 0x9f, 0x0f, 0x09, 0xc0,
> + 0x00, 0xb4, 0x37, 0x70, 0x79, 0x69);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20);
>
> - mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a);
> - mipi_dsi_dcs_write_seq(dsi, 0xf4,
> - 0xbb, 0x23, 0x19, 0x3a, 0x9f, 0x0f, 0x09, 0xc0,
> - 0x00, 0xb4, 0x37, 0x70, 0x79, 0x69);
> - mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5);
> - mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20);
> + mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
>
> - ret = mipi_dsi_dcs_set_display_on(dsi);
> - if (ret < 0) {
> - dev_err(dev, "Failed to set display on: %d\n", ret);
> - return ret;
> - }
> -
> - return 0;
> + return dsi_ctx.accum_err;
> }
>
> static int s6e3fa7_panel_prepare(struct drm_panel *panel)
> {
> struct s6e3fa7_panel *ctx = to_s6e3fa7_panel(panel);
> - struct device *dev = &ctx->dsi->dev;
> int ret;
>
> s6e3fa7_panel_reset(ctx);
>
> - ret = s6e3fa7_panel_on(ctx);
> - if (ret < 0) {
> - dev_err(dev, "Failed to initialize panel: %d\n", ret);
> + ret = s6e3fa7_panel_on(ctx->dsi);
> + if (ret < 0)
> gpiod_set_value_cansleep(ctx->reset_gpio, 1);
> - return ret;
> - }
>
> - return 0;
> + return ret;
> }
>
> static int s6e3fa7_panel_unprepare(struct drm_panel *panel)
> @@ -104,23 +85,13 @@ static int s6e3fa7_panel_disable(struct drm_panel *panel)
> {
> struct s6e3fa7_panel *ctx = to_s6e3fa7_panel(panel);
> struct mipi_dsi_device *dsi = ctx->dsi;
> - struct device *dev = &dsi->dev;
> - int ret;
> -
> - ret = mipi_dsi_dcs_set_display_off(dsi);
> - if (ret < 0) {
> - dev_err(dev, "Failed to set display off: %d\n", ret);
> - return ret;
> - }
> + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
>
> - ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
> - if (ret < 0) {
> - dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
> - return ret;
> - }
> - msleep(120);
> + mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
> + mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
> + mipi_dsi_msleep(&dsi_ctx, 120);
>
> - return 0;
> + return dsi_ctx.accum_err;
> }
>
> static const struct drm_display_mode s6e3fa7_panel_mode = {
> --
> 2.46.0
>
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