[PATCH 2/2] drm: exynos: dsi: Add mode_set function

[Robert Foss]

Hi Jagan,

On Mon, 22 Nov 2021 at 08:06, Jagan Teki <jagan at amarulasolutions.com> wrote:
>
> Get the display mode settings via mode_set bridge function
> instead of explicitly de-reference.
>
> Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_dsi.c | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
> index 174590f543c3..3d4713346949 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
> @@ -260,6 +260,7 @@ struct exynos_dsi {
>         struct drm_bridge bridge;
>         struct drm_bridge *out_bridge;
>         struct device *dev;
> +       struct drm_display_mode mode;
>
>         void __iomem *reg_base;
>         struct phy *phy;
> @@ -883,7 +884,7 @@ static int exynos_dsi_init_link(struct exynos_dsi *dsi)
>
>  static void exynos_dsi_set_display_mode(struct exynos_dsi *dsi)
>  {
> -       struct drm_display_mode *m = &dsi->encoder.crtc->state->adjusted_mode;
> +       struct drm_display_mode *m = &dsi->mode;
>         unsigned int num_bits_resol = dsi->driver_data->num_bits_resol;
>         u32 reg;
>
> @@ -1526,6 +1527,15 @@ static int exynos_dsi_create_connector(struct exynos_dsi *dsi)
>         return 0;
>  }
>
> +static void exynos_dsi_mode_set(struct drm_bridge *bridge,
> +                               const struct drm_display_mode *mode,
> +                               const struct drm_display_mode *adjusted_mode)
> +{
> +       struct exynos_dsi *dsi = bridge_to_dsi(bridge);
> +
> +       drm_mode_copy(&dsi->mode, adjusted_mode);
> +}
> +
>  static int exynos_dsi_attach(struct drm_bridge *bridge,
>                              enum drm_bridge_attach_flags flags)
>  {
> @@ -1540,6 +1550,7 @@ static const struct drm_bridge_funcs exynos_dsi_bridge_funcs = {
>         .atomic_reset           = drm_atomic_helper_bridge_reset,
>         .atomic_enable          = exynos_dsi_atomic_enable,
>         .atomic_disable         = exynos_dsi_atomic_disable,
> +       .mode_set               = exynos_dsi_mode_set,
>         .attach                 = exynos_dsi_attach,
>  };
>
> --
> 2.25.1
>

Reviewed-by: Robert Foss <robert.foss at linaro.org>