From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jose.Abreu@synopsys.com (Jose Abreu) Date: Wed, 18 Jan 2017 10:22:24 +0000 Subject: [RFC/RFT PATCH 3/4] drm/bridge: dw-hdmi: Enable CSC even for DVI In-Reply-To: <1484656294-6140-4-git-send-email-narmstrong@baylibre.com> References: <1484656294-6140-1-git-send-email-narmstrong@baylibre.com> <1484656294-6140-4-git-send-email-narmstrong@baylibre.com> Message-ID: <888e2dfb-db21-04b5-90d3-9f917052f70a@synopsys.com> To: linus-amlogic@lists.infradead.org List-Id: linus-amlogic.lists.infradead.org Hi Neil, On 17-01-2017 12:31, Neil Armstrong wrote: > If the input pixel format is not RGB, the CSC must be enabled in order to > provide valid pixel to DVI sinks. > This patch removes the hdmi only dependency on the CSC enabling. > > Signed-off-by: Neil Armstrong I was going to say that you should make sure the output colorspace is RGB or else DVI will fail to work, but I just noticed the output colorspace is fixed in the code to RGB. Though, that may change in the future. Reviewed-by: Jose Abreu Best regards, Jose Miguel Abreu > --- > drivers/gpu/drm/bridge/dw-hdmi.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c > index 923e250..8a6a183 100644 > --- a/drivers/gpu/drm/bridge/dw-hdmi.c > +++ b/drivers/gpu/drm/bridge/dw-hdmi.c > @@ -1331,8 +1331,8 @@ static void dw_hdmi_enable_video_path(struct dw_hdmi *hdmi) > hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS); > } > > - /* Enable color space conversion if needed (for HDMI sinks only). */ > - if (hdmi->sink_is_hdmi && is_color_space_conversion(hdmi)) > + /* Enable color space conversion if needed */ > + if (is_color_space_conversion(hdmi)) > hdmi_writeb(hdmi, HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH, > HDMI_MC_FLOWCTRL); > else