diff options
| author | Neil Armstrong <narmstrong@baylibre.com> | 2019-02-01 12:07:46 +0000 |
|---|---|---|
| committer | Andrzej Hajda <a.hajda@samsung.com> | 2019-02-01 13:15:07 +0100 |
| commit | 264fce6cc2c1b06d14c345b0b31b281087feb99b (patch) | |
| tree | 0a8949c3fb822b1f8ccd33bf3adf2ec8fa3a65b4 /drivers/gpu/drm/bridge/synopsys/dw-hdmi.h | |
| parent | d60ea31a87314eb7bea0b2dcbd36cf12bdf9ac0d (diff) | |
drm/bridge: dw-hdmi: Add SCDC and TMDS Scrambling support
Add support for SCDC Setup for TMDS Clock > 3.4GHz and enable TMDS
Scrambling when supported or mandatory.
This patch also adds an helper to setup the control bit to support
the high TMDS Bit Period/TMDS Clock-Period Ratio as required with
TMDS Clock > 3.4GHz for HDMI2.0 3840x2160@60/50 modes.
These changes were based on work done by Huicong Xu <xhc@rock-chips.com>
and Nickey Yang <nickey.yang@rock-chips.com> to support HDMI2.0 modes
on the Rockchip 4.4 BSP kernel at [1]
[1] https://github.com/rockchip-linux/kernel/tree/release-4.4
Cc: Nickey Yang <nickey.yang@rock-chips.com>
Cc: Huicong Xu <xhc@rock-chips.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1549022873-40549-2-git-send-email-narmstrong@baylibre.com
Diffstat (limited to 'drivers/gpu/drm/bridge/synopsys/dw-hdmi.h')
| -rw-r--r-- | drivers/gpu/drm/bridge/synopsys/dw-hdmi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h index 9d90eb9c46e5..3f3c616eba97 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h @@ -255,6 +255,7 @@ #define HDMI_FC_MASK2 0x10DA #define HDMI_FC_POL2 0x10DB #define HDMI_FC_PRCONF 0x10E0 +#define HDMI_FC_SCRAMBLER_CTRL 0x10E1 #define HDMI_FC_GMD_STAT 0x1100 #define HDMI_FC_GMD_EN 0x1101 |