Re: [PATCH RFC V3 0/3] Input: goodix - add axis swapping and axis inversion support

From: Aleksei Mamlin
Date: Wed Oct 21 2015 - 06:44:31 EST


On Sun, 18 Oct 2015 17:52:56 +0200
Karsten Merker <merker@xxxxxxxxxx> wrote:

> Hello,
>
> this is v3 of my "Input: goodix - add axis swapping and axis inversion
> support" patchset.
>
> The goodix touchscreen driver has gained device-tree support in kernel
> 4.1, but doesn't currently support the touchscreen-swapped-x-y,
> touchscreen-inverted-x and touchscreen-inverted-y properties.
> On systems which combine a portrait-mode display with a landscape-mode
> touchscreen, such as e.g. the MSI Primo 81 tablet, support for these
> features is necessary to have the touchscreen and the display use the
> same coordinate system.
>
> With support for axis inversion, the "rotated_screen" flag in the
> driver can also be removed, as "rotated_screen" is just a special case
> of x/y axis inversion.
>
> This patchset sits on top of the "[PATCH v9 0/9] Goodix touchscreen
> enhancements" series by Irina Tirdea:
> https://www.spinics.net/lists/linux-input/msg41501.html
>
> The axis swapping has successfully been tested on an (arm-based)
> MSI Primo 81 tablet; the x/y inversion resp. the rotated_screen
> functionality has successfully been tested on a WinBook TW100.
>
> @Bastien: You had acked patch No. 1 in v2 of the patchset. I have
> not transferred that ack to v3 of the same patch
> because I have have introduced some changes into that
> patch (based on Irina's review comments, cf. the
> changelog below) after your ack. I would apprechiate
> very much if you could take a look and tell me whether
> your ack extends to v3 as well.
>
> Regards,
> Karsten
>
> Changelog:
>
> v1: * Initial version (based von v6 of Irina Tirdea's "Goodix
> touchscreen enhancements" series).
> Reviewed-by: Bastien Nocera <hadess@xxxxxxxxxx>
>
> v2: * Rebase against v8 of Irina Tirdea's "Goodix touchscreen
> enhancements" series.
> * Fix a typo in the commit message.
> * Add an update for the goodix dt bindings documentation
> (patch No. 3).
> * Reviews/Tests:
> Patch 1+2: Tested-by: Bastien Nocera <hadess@xxxxxxxxxx>
> Acked-by: Bastien Nocera <hadess@xxxxxxxxxx>
> Patch 2+3: Reviewed-by: Irina Tirdea <irina.tirdea@xxxxxxxxx>
>
> v3: * Rebase against v9 of Irina Tirdea's "Goodix touchscreen
> enhancements" series.
> * Address the review comments for patch No. 1 by Irina Tirdea
> (https://www.spinics.net/lists/linux-input/msg41536.html):
> - Move reading the dt properties from goodix_ts_probe to
> goodix_configure_dev to make them work properly in all
> configurations (with and without gpio declarations).
> - Use the new unified device properties API (device_property_*)
> instead of the classic DT API (of_property_*). This
> provides support for ACPI 5.1 DSD properties as well as
> for device-tree properties.
>
> Karsten Merker (3):
> Input: goodix - add axis swapping and axis inversion support
> Input: goodix - use "inverted_[xy]" flags instead of "rotated_screen"
> Input: goodix - update dt bindings documentation (axis
> swapping/inversion)
>
> .../bindings/input/touchscreen/goodix.txt | 6 +++++
> drivers/input/touchscreen/goodix.c | 31 ++++++++++++++++++----
> 2 files changed, 32 insertions(+), 5 deletions(-)
>
> --
> 2.1.4

Tested on Wexler TAB7200 with device-tree properties.

Tested-by: Aleksei Mamlin <mamlinav@xxxxxxxxx>


--
Thanks and regards,
Aleksei Mamlin
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