On 08/03/2019 15:54, Rob Herring wrote:
> On Fri, Mar 8, 2019 at 2:05 AM Neil Armstrong <[email protected]> wrote:
>>
>> Hi Rob,
>>
>> On 08/03/2019 00:13, Rob Herring wrote:
>>> On Fri, Feb 1, 2019 at 6:08 AM Neil Armstrong <[email protected]>
>>> wrote:
>>>>
>>>> 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 <[email protected]>
>>>> and Nickey Yang <[email protected]> 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 <[email protected]>
>>>> Cc: Huicong Xu <[email protected]>
>>>> Signed-off-by: Neil Armstrong <[email protected]>
>>>> Tested-by: Heiko Stuebner <[email protected]>
>>>> Reviewed-by: Andrzej Hajda <[email protected]>
>>>> ---
>>>> drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 85
>>>> ++++++++++++++++++++++++++++++-
>>>> drivers/gpu/drm/bridge/synopsys/dw-hdmi.h | 1 +
>>>> include/drm/bridge/dw_hdmi.h | 1 +
>>>> 3 files changed, 85 insertions(+), 2 deletions(-)
>>>
>>> This commit in drm-misc-next is breaking booting on the Rock960. I
>>> have FB and fbcon enabled. The boot hangs after this message:
>>>
>>> [ 3.012334] [drm:rockchip_drm_fbdev_create] FB [1920x1080]-24
>>> kvaddr=(____ptrval____) offset=0 size=8294400
>>
>> Could you give more details on the tree used ? did you bisect to find this
>> commit ?
>
> As I said above, drm-misc-next (from drm-misc tree) is the branch. I
> bisected between it and v5.0. Reverting it fixes booting.
Thanks, could you give more details on the environment ? Did you test over the
latest linux-next ?
Can you share the EDID of your monitor ?
Can you check this patch :
----><----------------------------------------------------------------------------------------
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index a63e5f0dae56..f33c2ac158c1 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -1268,8 +1268,6 @@ static int hdmi_phy_configure(struct dw_hdmi *hdmi)
dw_hdmi_phy_power_off(hdmi);
- dw_hdmi_set_high_tmds_clock_ratio(hdmi);
-
/* Leave low power consumption mode by asserting SVSRET. */
if (phy->has_svsret)
dw_hdmi_phy_enable_svsret(hdmi, 1);
_______________________________________________
dri-devel mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/dri-devel
