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Subject: Re: [PATCH v6 4/6] mfd: stm32: enable regmap fast_io for
 stm32-lptimer
To:     Benjamin Gaignard <benjamin.gaignard@st.com>,
        <lee.jones@linaro.org>, <robh+dt@kernel.org>,
        <mark.rutland@arm.com>, <mcoquelin.stm32@gmail.com>,
        <alexandre.torgue@st.com>, <daniel.lezcano@linaro.org>,
        <tglx@linutronix.de>
CC:     <devicetree@vger.kernel.org>,
        <linux-stm32@st-md-mailman.stormreply.com>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>
References: <20200401083909.18886-1-benjamin.gaignard@st.com>
 <20200401083909.18886-5-benjamin.gaignard@st.com>
From:   Fabrice Gasnier <fabrice.gasnier@st.com>
Message-ID: <4ca5f15f-c967-9c84-4a9f-13a11f71a72a@st.com>
Date:   Wed, 1 Apr 2020 10:52:20 +0200
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On 4/1/20 10:39 AM, Benjamin Gaignard wrote:
> Because stm32-lptimer need to write in registers in interrupt context
> enable regmap fast_io to use a spin_lock to protect registers access
> rather than a mutex.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
> ---
>  drivers/mfd/stm32-lptimer.c | 1 +
>  1 file changed, 1 insertion(+)
Hi Benjamin,

Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com>

Thanks,
Fabrice
> 
> diff --git a/drivers/mfd/stm32-lptimer.c b/drivers/mfd/stm32-lptimer.c
> index a00f99f36559..746e51a17cc8 100644
> --- a/drivers/mfd/stm32-lptimer.c
> +++ b/drivers/mfd/stm32-lptimer.c
> @@ -17,6 +17,7 @@ static const struct regmap_config stm32_lptimer_regmap_cfg = {
>  	.val_bits = 32,
>  	.reg_stride = sizeof(u32),
>  	.max_register = STM32_LPTIM_MAX_REGISTER,
> +	.fast_io = true,
>  };
>  
>  static int stm32_lptimer_detect_encoder(struct stm32_lptimer *ddata)
>