Hi,
On Thu, May 30, 2024 at 02:59:30PM GMT, Jayesh Choudhary wrote:
> Check the pixel clock for the mode in atomic_check and ensure that
> it is within the range supported by the bridge.
>
> Signed-off-by: Jayesh Choudhary <j-choudhary@xxxxxx>
> ---
> drivers/gpu/drm/bridge/sii902x.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
> index 6a6055a4ccf9..1bf2f14a772d 100644
> --- a/drivers/gpu/drm/bridge/sii902x.c
> +++ b/drivers/gpu/drm/bridge/sii902x.c
> @@ -494,6 +494,12 @@ static int sii902x_bridge_atomic_check(struct drm_bridge *bridge,
> struct drm_crtc_state *crtc_state,
> struct drm_connector_state *conn_state)
> {
> + if (crtc_state->mode.clock < SII902X_MIN_PIXEL_CLOCK_KHZ)
> + return MODE_CLOCK_LOW;
> +
> + if (crtc_state->mode.clock > SII902X_MAX_PIXEL_CLOCK_KHZ)
> + return MODE_CLOCK_HIGH;
> +
atomic_check doesn't return drm_mode_status but regular error codes (0
on success, negative error code on failure)
Maxime
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