Hi Fabio,
Thank you for the patch.
On Thu, Dec 30, 2021 at 10:39:30PM -0300, Fabio Estevam wrote:
> Implement the .atomic_get_input_bus_fmts callback to let the bridge
> indicate the pixel format it requires on the parallel bus to the LCDIF.
>
> Based on Marek's commit db8b7ca5b232 ("drm/bridge: ti-sn65dsi83: Replace
> connector format patching with atomic_get_input_bus_fmts").
>
> Tested on a imx6sx-udoo-neo board.
>
> Suggested-by: Marek Vasut
> Signed-off-by: Fabio Estevam
> ---
> drivers/gpu/drm/i2c/tda998x_drv.c | 29 +
> 1 file changed, 29 insertions(+)
>
> diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c
> b/drivers/gpu/drm/i2c/tda998x_drv.c
> index adaa985af87e..d987481e97c1 100644
> --- a/drivers/gpu/drm/i2c/tda998x_drv.c
> +++ b/drivers/gpu/drm/i2c/tda998x_drv.c
> @@ -1678,6 +1678,31 @@ static void tda998x_bridge_mode_set(struct drm_bridge
> *bridge,
> mutex_unlock(>audio_mutex);
> }
>
> +#define MAX_INPUT_SEL_FORMATS 1
> +
> +static u32 *
> +tda998x_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
> +struct drm_bridge_state *bridge_state,
> +struct drm_crtc_state *crtc_state,
> +struct drm_connector_state *conn_state,
> +u32 output_fmt,
> +unsigned int *num_input_fmts)
> +{
> + u32 *input_fmts;
> +
> + *num_input_fmts = 0;
> +
> + input_fmts = kcalloc(MAX_INPUT_SEL_FORMATS, sizeof(*input_fmts),
> + GFP_KERNEL);
> + if (!input_fmts)
> + return NULL;
> +
> + input_fmts[0] = MEDIA_BUS_FMT_RGB888_1X24;
> + *num_input_fmts = 1;
> +
> + return input_fmts;
> +}
> +
> static const struct drm_bridge_funcs tda998x_bridge_funcs = {
> .attach = tda998x_bridge_attach,
> .detach = tda998x_bridge_detach,
> @@ -1685,6 +1710,10 @@ static const struct drm_bridge_funcs
> tda998x_bridge_funcs = {
> .atomic_disable = tda998x_bridge_atomic_disable,
> .mode_set = tda998x_bridge_mode_set,
> .atomic_enable = tda998x_bridge_atomic_enable,
> + .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
> + .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
> + .atomic_reset = drm_atomic_helper_bridge_reset,
I think this should go to 1/2.
Reviewed-by: Laurent Pinchart
> + .atomic_get_input_bus_fmts = tda998x_atomic_get_input_bus_fmts,
> };
>
> /* I2C driver functions */
--
Regards,
Laurent Pinchart
