Re: [PATCH v6 2/2] input: add Qualcomm SPMI haptics driver

From: Krzysztof Kozlowski
Date: Tue Oct 11 2022 - 08:16:18 EST


On 10/10/2022 12:30, Caleb Connolly wrote:
> Add support for the haptics found in pmi8998 and related PMICs.
> Based on the ff-memless interface. Currently this driver provides
> a partial implementation of hardware features.
>
> This driver only supports LRAs (Linear Resonant Actuators) in the "buffer"
> mode with a single wave pattern.
>
> Signed-off-by: Caleb Connolly <caleb@xxxxxxxxxxxxx>
> ---
> drivers/input/misc/Kconfig | 15 +
> drivers/input/misc/Makefile | 1 +
> drivers/input/misc/qcom-pmi8998-haptics.c | 690 ++++++++++++++++++++++
> 3 files changed, 706 insertions(+)
> create mode 100644 drivers/input/misc/qcom-pmi8998-haptics.c
>
> diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
> index a18ab7358d8f..c3b59ea23144 100644
> --- a/drivers/input/misc/Kconfig
> +++ b/drivers/input/misc/Kconfig
> @@ -186,6 +186,21 @@ config INPUT_PMIC8XXX_PWRKEY
> To compile this driver as a module, choose M here: the
> module will be called pmic8xxx-pwrkey.
>
> +config INPUT_QCOM_PMI8998_HAPTICS
> + tristate "Qualcomm SPMI HAPTICS"
> + depends on ARCH_QCOM

|| COMPILE_TEST

> + depends on MFD_PM8XXX || MFD_SPMI_PMIC

|| COMPILE_TEST (and actually test it)

> + select INPUT_FF_MEMLESS
> + help
> + This option enables support for the haptics found in pmi8998 and
> + related PMICs. Based on the ff-memless interface.
> +
> + This driver is for hardware too new for the INPUT_PM8XXX_VIBRATOR
> + driver.
> +
> + To compile this driver as module, choose M here: the
> + module will be called qcom_pmi8998_haptics.
> +


Best regards,
Krzysztof