linux-kernel - Re: [PATCH v2 3/8] dt-bindings: mfd: stm32-timers: add support for dmas

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Message-ID: <20180205060720.v3sfw44orngsyltq@rob-hp-laptop>
Date:   Mon, 5 Feb 2018 00:07:20 -0600
From:   Rob Herring <robh@...nel.org>
To:     Fabrice Gasnier <fabrice.gasnier@...com>
Cc:     lee.jones@...aro.org, thierry.reding@...il.com,
        alexandre.torgue@...com, benjamin.gaignard@...aro.org,
        mark.rutland@....com, linux@...linux.org.uk,
        mcoquelin.stm32@...il.com, benjamin.gaignard@...com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org
Subject: Re: [PATCH v2 3/8] dt-bindings: mfd: stm32-timers: add support for
 dmas

On Fri, Jan 26, 2018 at 04:11:34PM +0100, Fabrice Gasnier wrote:
> Add support for DMAs to STM32 timers. STM32 Timers can support up to 7
> dma requests: up to 4 channels, update, compare and trigger.
> DMAs may be used to transfer data from pwm capture for instance.
> DMA support is made optional, PWM capture support is also an option.
> This is much more wise system-wide to avoid shortage on DMA request
> lines as there's significant amount of timer instances that can
> request up to 7 channels.
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
> ---
>  .../devicetree/bindings/mfd/stm32-timers.txt         | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)

Reviewed-by: Rob Herring <robh@...nel.org>