Re: [PATCH 0/5] Improvements for drv260x driver and add to Huawei Watch

[Dmitry Torokhov]

On Sun, Apr 30, 2023 at 08:20:52PM +0200, Luca Weiss wrote:
> Clean up some issues with the driver I've noticed while working on it,
> then fix the magnitude handling which previously resulted the driver
> discarding the upper 8 bits of the magnitude value, and finally we can
> add the drv260x to the APQ8026 Huawei Watch.
> 
> While the "fix magnitude handling" commit technically changes behavior
> and could change behavior of existing user space applications that deal
> with this quirky behavior, it's definitely not correct and results in
> very unexpected behavior if the user space doesn't look out for it
> (meaning only use 0x00-0xFF magnitude, and also know that the magnitude
> was interpreted as signed value, see more details in the commit message
> there).
> 
> There's currently only one other upstream user of the driver,
> qcom/msm8996-xiaomi-gemini where I've added the dts authors to this
> patch series (Raffaele & Yassine) and some tests on that device would be
> nice since it's operating in LRA mode, mine does in ERM mode.
> 
> Signed-off-by: Luca Weiss <luca@xxxxxxxxx>
> ---
> Luca Weiss (5):
>       Input: drv260x - fix typo in register value define
>       Input: drv260x - sleep between polling GO bit
>       Input: drv260x - remove unused .reg_defaults
>       Input: drv260x - fix magnitude handling
>       ARM: dts: qcom: apq8026-huawei-sturgeon: Add vibrator

Applied patches 1-4.

Thanks.

-- 
Dmitry