On 04/06/2017 11:34 AM, Neil Armstrong wrote:
> The plat_data->input_bus_format and plat_data->input_bus_encoding
> are unsigned long and are alsways >=0, but the value 0 was still
> considered as RGB888 like the default behaviour.
>
> This patch changes the if test to > 0.
>
> Thanks to Dan Carpenter for his bug report at [1].
>
> Tested on Amlogic P230 (with CSC enabled for YUV444 to RGB) and Rockchip
> RK3288 ACT8846 EVB Board (no CSC involved, direct RGB passthrough).
>
> [1] http://lkml.kernel.org/r/20170406052120.GA26578@mwanda
Forgot...
Fixes: def23aa7e982 ("drm: bridge: dw-hdmi: Switch to V4L bus format and
encodings")
>
> Cc: Dan Carpenter <[email protected]>
> Signed-off-by: Neil Armstrong <[email protected]>
> ---
> drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index 8b60503..100e1ee 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -1668,14 +1668,14 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct
> drm_display_mode *mode)
> hdmi->hdmi_data.video_mode.mpixelrepetitioninput = 0;
>
> /* TOFIX: Get input format from plat data or fallback to RGB888 */
> - if (hdmi->plat_data->input_bus_format >= 0)
> + if (hdmi->plat_data->input_bus_format)
> hdmi->hdmi_data.enc_in_bus_format =
> hdmi->plat_data->input_bus_format;
> else
> hdmi->hdmi_data.enc_in_bus_format = MEDIA_BUS_FMT_RGB888_1X24;
>
> /* TOFIX: Get input encoding from plat data or fallback to none */
> - if (hdmi->plat_data->input_bus_encoding >= 0)
> + if (hdmi->plat_data->input_bus_encoding)
> hdmi->hdmi_data.enc_in_encoding =
> hdmi->plat_data->input_bus_encoding;
> else
>
