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SubjectRe: [PATCH v4] Input: add support for the Samsung S6SY761 touchscreen
On Tue, Sep 26, 2017 at 03:31:35PM +0900, Andi Shyti wrote:
> The S6SY761 touchscreen is a capicitive multi-touch controller
> for mobile use. It's connected with i2c at the address 0x48.
>
> This commit provides a basic version of the driver which can
> handle only initialization, touch events and power states.
>
> The controller is controlled by a firmware which, in the version
> I currently have, doesn't provide all the possible
> functionalities mentioned in the datasheet.
>
> Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
> ---
> Hi,
>
> sorry for the mix-up of the previous patch. This one should be
> fine. Here's the changelog:
>
> v3 - v4
> - fixed a mismatch on the module name
>
> v2 - v3
> - added security check on an unsigned value which can (unlikely)
> get a "negative" value
>
> - in the probe function the interrupt is requested after the
> input device registration in order to avoid checking in the
> interrupt handler whether the input device has been registered
>
> - removed the 'prev_pm_state' variable. Its original meaning
> was to restore the state of the device when coming back from
> sleep mode, but because I removed in patch v2 the low power
> mode, now the device works only in two modes and therefore
> 'prev_pm_state' is not required any longer.
>
> v1 - v2
> - remove the low power functionality as it doesn't bring any
> benefit
> - use get_unaligned_be16 instead of the form 'a << 8 | b'
> - use max_t instead of '? :'
> - use managed 'devm_device_add_group()'
>
> Thanks,
> Andi
>
> .../bindings/input/touchscreen/samsung,s6sy761.txt | 34 ++

In the future, a separate patch for bindings please.

Otherwise,

Acked-by: Rob Herring <robh@kernel.org>

> drivers/input/touchscreen/Kconfig | 11 +
> drivers/input/touchscreen/Makefile | 1 +
> drivers/input/touchscreen/s6sy761.c | 556 +++++++++++++++++++++
> 4 files changed, 602 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/input/touchscreen/samsung,s6sy761.txt
> create mode 100644 drivers/input/touchscreen/s6sy761.c

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