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| 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 /include/drm | |
| parent | drm/TODO: Add drm_display_mode.hsync/vrefresh removal (diff) | |
| download | linux-dev-264fce6cc2c1b06d14c345b0b31b281087feb99b.tar.xz linux-dev-264fce6cc2c1b06d14c345b0b31b281087feb99b.zip | |
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 'include/drm')
| -rw-r--r-- | include/drm/bridge/dw_hdmi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h index 9f93895dde88..66e70770cce5 100644 --- a/include/drm/bridge/dw_hdmi.h +++ b/include/drm/bridge/dw_hdmi.h @@ -159,6 +159,7 @@ void dw_hdmi_setup_rx_sense(struct dw_hdmi *hdmi, bool hpd, bool rx_sense); void dw_hdmi_set_sample_rate(struct dw_hdmi *hdmi, unsigned int rate); void dw_hdmi_audio_enable(struct dw_hdmi *hdmi); void dw_hdmi_audio_disable(struct dw_hdmi *hdmi); +void dw_hdmi_set_high_tmds_clock_ratio(struct dw_hdmi *hdmi); /* PHY configuration */ void dw_hdmi_phy_i2c_set_addr(struct dw_hdmi *hdmi, u8 address); |