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SubjectRe: [PATCH v3 0/2] media: Add Amlogic Meson AO CEC Controller support
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On 07/28/2017 02:37 PM, Hans Verkuil wrote:
> On 07/28/2017 02:35 PM, Hans Verkuil wrote:
>> Hi Neil,
>>
>> On 07/27/2017 05:20 PM, Neil Armstrong wrote:
>>> The Amlogic SoC embeds a standalone CEC controller, this patch adds a driver
>>> for such controller.
>>> The controller does not need HPD to be active, and could support up to max
>>> 5 logical addresses, but only 1 is handled since the Suspend firmware can
>>> make use of this unique logical address to wake up the device.
>>>
>>> The Suspend firmware configuration will be added in an other patchset.
>>
>> Note that to get the right module dependencies you will also need to add
>> this line:
>>
>> select CEC_CORE if CEC_NOTIFIER
>>
>> to DRM_MESON_DW_HDMI in drivers/gpu/drm/meson/Kconfig.
>>
>> This ensures that if DRM_MESON_DW_HDMI is 'y' but VIDEO_MESON_AO_CEC is 'm'
>> the CEC_CORE config is set to 'y'.
>>
>> Obviously this is a patch for dri-devel.
>
> I was too quick sending this: I expect this line to appear in DRM_DW_HDMI,
> not DRM_MESON_DW_HDMI. Sorry about the noise.

Indeed, I will respin russell's notifier patch with this.

Thanks,
Neil

>
> Hans
>
>>
>> Regards,
>>
>> Hans
>>
>>>
>>> Changes since v2 at [2] :
>>> - change meson_ao_cec_read/write prototype to simplify error handling
>>>
>>> Changes since v1 at [1] :
>>> - add timeout to wait busy, with error return
>>> - handle busy error in all read/write operations
>>> - add CEC_CAP_PASSTHROUGH
>>> - add bindings ack
>>>
>>> [1] https://lkml.kernel.org/r/1499336870-24118-1-git-send-email-narmstrong@baylibre.com
>>> [2] https://lkml.kernel.org/r/1499673696-21372-1-git-send-email-narmstrong@baylibre.com
>>>
>>> Neil Armstrong (2):
>>> platform: Add Amlogic Meson AO CEC Controller driver
>>> dt-bindings: media: Add Amlogic Meson AO-CEC bindings
>>>
>>> .../devicetree/bindings/media/meson-ao-cec.txt | 28 +
>>> drivers/media/platform/Kconfig | 11 +
>>> drivers/media/platform/Makefile | 2 +
>>> drivers/media/platform/meson/Makefile | 1 +
>>> drivers/media/platform/meson/ao-cec.c | 744 +++++++++++++++++++++
>>> 5 files changed, 786 insertions(+)
>>> create mode 100644 Documentation/devicetree/bindings/media/meson-ao-cec.txt
>>> create mode 100644 drivers/media/platform/meson/Makefile
>>> create mode 100644 drivers/media/platform/meson/ao-cec.c
>>>
>>
>

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