[PATCH v2 07/13] drm/bridge: lt9611: rework the mode_set function

[Neil Armstrong]

On 08/01/2023 17:56, Dmitry Baryshkov wrote:
> The mode_set callback is deprectated for drm_bridges in favour of using
> atomic_enable callback. Move corresponding code into the function
> lt9611_bridge_atomic_enable() and turn lt9611_bridge_pre_enable() into
> the proper atomic_pre_enable callback.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> ---
>   drivers/gpu/drm/bridge/lontium-lt9611.c | 61 +++++++++++++++----------
>   1 file changed, 36 insertions(+), 25 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c
> index 3b77238ca4af..1b65a573be27 100644
> --- a/drivers/gpu/drm/bridge/lontium-lt9611.c
> +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c
> @@ -713,6 +713,39 @@ lt9611_bridge_atomic_enable(struct drm_bridge *bridge,
>   			    struct drm_bridge_state *old_bridge_state)
>   {
>   	struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
> +	struct drm_atomic_state *state = old_bridge_state->base.state;
> +	struct drm_connector *connector;
> +	struct drm_connector_state *conn_state;
> +	struct drm_crtc_state *crtc_state;
> +	struct drm_display_mode *mode;
> +	struct hdmi_avi_infoframe avi_frame;
> +	unsigned int postdiv;
> +	int ret;
> +
> +	connector = drm_atomic_get_new_connector_for_encoder(state, bridge->encoder);
> +	if (WARN_ON(!connector))
> +		return;
> +
> +	conn_state = drm_atomic_get_new_connector_state(state, connector);
> +	if (WARN_ON(!conn_state))
> +		return;
> +
> +	crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
> +	if (WARN_ON(!crtc_state))
> +		return;
> +
> +	mode = &crtc_state->adjusted_mode;
> +
> +	lt9611_mipi_input_digital(lt9611, mode);
> +	lt9611_pll_setup(lt9611, mode, &postdiv);
> +	lt9611_mipi_video_setup(lt9611, mode);
> +	lt9611_pcr_setup(lt9611, mode, postdiv);
> +
> +	ret = drm_hdmi_avi_infoframe_from_display_mode(&avi_frame,
> +						       connector,
> +						       mode);
> +	if (!ret)
> +		lt9611->vic = avi_frame.video_code;
>   
>   	if (lt9611_power_on(lt9611)) {
>   		dev_err(lt9611->dev, "power on failed\n");
> @@ -856,7 +889,8 @@ static enum drm_mode_status lt9611_bridge_mode_valid(struct drm_bridge *bridge,
>   		return MODE_OK;
>   }
>   
> -static void lt9611_bridge_pre_enable(struct drm_bridge *bridge)
> +static void lt9611_bridge_atomic_pre_enable(struct drm_bridge *bridge,
> +					    struct drm_bridge_state *old_bridge_state)
>   {
>   	struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
>   	static const struct reg_sequence reg_cfg[] = {
> @@ -884,29 +918,6 @@ lt9611_bridge_atomic_post_disable(struct drm_bridge *bridge,
>   	lt9611_sleep_setup(lt9611);
>   }
>   
> -static void lt9611_bridge_mode_set(struct drm_bridge *bridge,
> -				   const struct drm_display_mode *mode,
> -				   const struct drm_display_mode *adj_mode)
> -{
> -	struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
> -	struct hdmi_avi_infoframe avi_frame;
> -	unsigned int postdiv;
> -	int ret;
> -
> -	lt9611_bridge_pre_enable(bridge);
> -
> -	lt9611_mipi_input_digital(lt9611, mode);
> -	lt9611_pll_setup(lt9611, mode, &postdiv);
> -	lt9611_mipi_video_setup(lt9611, mode);
> -	lt9611_pcr_setup(lt9611, mode, postdiv);
> -
> -	ret = drm_hdmi_avi_infoframe_from_display_mode(&avi_frame,
> -						       &lt9611->connector,
> -						       mode);
> -	if (!ret)
> -		lt9611->vic = avi_frame.video_code;
> -}
> -
>   static enum drm_connector_status lt9611_bridge_detect(struct drm_bridge *bridge)
>   {
>   	return __lt9611_detect(bridge_to_lt9611(bridge));
> @@ -957,11 +968,11 @@ lt9611_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
>   static const struct drm_bridge_funcs lt9611_bridge_funcs = {
>   	.attach = lt9611_bridge_attach,
>   	.mode_valid = lt9611_bridge_mode_valid,
> -	.mode_set = lt9611_bridge_mode_set,
>   	.detect = lt9611_bridge_detect,
>   	.get_edid = lt9611_bridge_get_edid,
>   	.hpd_enable = lt9611_bridge_hpd_enable,
>   
> +	.atomic_pre_enable = lt9611_bridge_atomic_pre_enable,
>   	.atomic_enable = lt9611_bridge_atomic_enable,
>   	.atomic_disable = lt9611_bridge_atomic_disable,
>   	.atomic_post_disable = lt9611_bridge_atomic_post_disable,


Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>