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Date: Sat, 08 Aug 2015 17:03:29 +0100
From: Russell King <rmk+kernel@....linux.org.uk>
To: linux-rockchip@...ts.infradead.org,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Cc: Philipp Zabel <p.zabel@...gutronix.de>,
Andy Yan <andy.yan@...k-chips.com>,
Yakir Yang <ykk@...k-chips.com>,
Fabio Estevam <fabio.estevam@...escale.com>,
Sascha Hauer <s.hauer@...gutronix.de>,
Jon Nettleton <jon.nettleton@...il.com>,
David Airlie <airlied@...ux.ie>
Subject: [PATCH 02/12] drm: bridge/dw_hdmi: don't support any pixel doubled
modes
As mentioned in the previous commit, the dw-hdmi driver does not support
pixel doubled modes at present; it does not configure the PLL correctly
for these modes. Therefore, filter out the double-clocked modes as we
presently are unable to support them.
Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>
---
drivers/gpu/drm/bridge/dw_hdmi.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
index 1c0ee3476138..8edf4c31f55c 100644
--- a/drivers/gpu/drm/bridge/dw_hdmi.c
+++ b/drivers/gpu/drm/bridge/dw_hdmi.c
@@ -1448,6 +1448,10 @@ dw_hdmi_connector_mode_valid(struct drm_connector *connector,
struct dw_hdmi, connector);
enum drm_mode_status mode_status = MODE_OK;
+ /* We don't support double-clocked modes */
+ if (mode->flags & DRM_MODE_FLAG_DBLCLK)
+ return MODE_BAD;
+
if (hdmi->plat_data->mode_valid)
mode_status = hdmi->plat_data->mode_valid(connector, mode);
--
2.1.0
--
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