On Tue, Oct 17, 2017 at 6:05 PM, Sean Paul <[email protected]> wrote:
> On Tue, Oct 17, 2017 at 12:33:09PM +0200, Matthias Brugger wrote:
>> From what I understand you
>> rebased the patches from the chromium kernel to mainline. So you should keep
>> the signed-off-by from the original author and just add you signed-off-by
>> below that.
>> Also it would be nice to CC these persons so that they are aware of your
>> effort.
>>
> Additionally, make sure the author and commit messages are preserved when you
> send
> patches. You can add your own message in addition to your SoB, but please try
> to
> preserve history.
Fair enough, but I'm not sure what exactly to include. The chromium
commits include, among other things:
- bugtracker numbers and test cases
- "Change-Id" and "Commit-Ready" (no idea what those are)
- "Reviewed-on", containing links to chromium-review.googlesource.com
With all changes to the PS8640 driver concatenated and non-standard
tags removed, the commit message would look like this:
=============================
CHROMIUM: drm/bridge: Add I2C based driver for ps8640 bridge
This patch adds drm_bridge driver for parade DSI to eDP bridge chip.
Signed-off-by: Jitao Shi <[email protected]>
(am from https://patchwork.kernel.org/patch/8357851/)
Signed-off-by: Daniel Kurtz <[email protected]>
Tested-by: cawa cheng <[email protected]>
Tested-by: Daniel Kurtz <[email protected]>
Reviewed-by: Nicolas Boichat <[email protected]>
FIXUP: FROMLIST: drm/bridge: Add I2C based driver for ps8640 bridge
chromeos-3.18 currently has FROMLIST v15 of the PS8640 driver.
This version is incompatible with UPSTREAM version of the Mediatek
DRM driver.
To quote Philipp Zabel:
"The main DRM driver mtk_drm_drv now calls
drm_connector_register_all() after drm_dev_register() in the
mtk_drm_bind() function. That function should iterate over all
connectors and call drm_connector_register() for each of them.
The call to drm_connector_init() from mtk_hdmi_bridge_attach()
should be enough to make this happen.
The drm_connector_(un)register calls also have to be removed
from the ps8640 driver."
Signed-off-by: Jitao Shi <[email protected]>
Signed-off-by: Daniel Kurtz <[email protected]>
Tested-by: PC Liao <[email protected]>
Tested-by: Daniel Kurtz <[email protected]>
Tested-by: Nicolas Boichat <[email protected]>
Reviewed-by: Daniel Kurtz <[email protected]>
CHROMIUM: drm/bridge: ps8640: Add a 3 ms delay before unmuting output
For current ps8640 firmware, the PS_GPIO9 signal only indicates the bridge
has seen the attached panel's HPD signal and read its EDID. Unfortunately,
the bridge may not yet be ready to properly handle DSI/eDP traffic yet.
For now, Paradetech has recommended adding a 3 ms delay after PS_GPIO9
before starting video signal transmission.
Signed-off-by: Jitao Shi <[email protected]>
Signed-off-by: Daniel Kurtz <[email protected]>
Tested-by: cawa cheng <[email protected]>
Tested-by: Daniel Kurtz <[email protected]>
Tested-by: jitao shi <[email protected]>
Reviewed-by: Daniel Kurtz <[email protected]>
Reviewed-by: jitao shi <[email protected]>
CHROMIUM: drm/bridge: ps8640: disable MIPI MCS
Disable PS8640 MIPI MCS commands to workaround an issue where normal
MIPI DSI signals are sometimes recognized as an MSC command that can,
for example, disable the bridge output.
Signed-off-by: Jitao Shi <[email protected]>
Tested-by: Daniel Kurtz <[email protected]>
Reviewed-by: Daniel Kurtz <[email protected]>
CHROMIUM: drm/bridge: ps8640: Use individual regulators instead of bulk
According to the latest information from Parade, the PS8640 1.2 V
supply must be enabled before 3.3 V.
So, split the bulk regulator into separate individual regulators that
can be enabled independently.
Signed-off-by: Jitao Shi <[email protected]>
Tested-by: Daniel Kurtz <[email protected]>
Reviewed-by: Daniel Kurtz <[email protected]>
CHROMIUM: drm/bridge: ps8640: add 5ms delay between v12 and v33
According to Parade, the PS8640 1.2V must be enabled 5 ms before its
3.3V. Otherwise, the PS8650 MCU may hang, and its settings cannot be
written correctly, leading to a black screen.
Signed-off-by: Jitao Shi <[email protected]>
Tested-by: Daniel Kurtz <[email protected]>
Reviewed-by: Daniel Kurtz <[email protected]>
=============================
That keeps chronology and attribution intact, but is somewhat
redundant. Any suggestions on how to digest it? Or should I just add
it as is?
CU
Uli
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