linux-kernel - Re: [PATCH v2] mfd: stm32-timers: Use dma_request_chan() instead dma_request_slave

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Message-ID: <20200520084953.GC271301@dell>
Date:   Wed, 20 May 2020 09:49:53 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Peter Ujfalusi <peter.ujfalusi@...com>
Cc:     fabrice.gasnier@...com, mcoquelin.stm32@...il.com,
        alexandre.torgue@...com, vkoul@...nel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mfd: stm32-timers: Use dma_request_chan() instead
 dma_request_slave_channel()

On Tue, 07 Jan 2020, Peter Ujfalusi wrote:

> dma_request_slave_channel() is a wrapper on top of dma_request_chan()
> eating up the error code.
> 
> By using dma_request_chan() directly the driver can support deferred
> probing against DMA.
> 
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
> ---
> Hi,
> 
> Changes since v1:
> - Fall back to PIO mode only in case of ENODEV and report all other errors
> 
> Regards,
> Peter
> 
>  drivers/mfd/stm32-timers.c | 32 +++++++++++++++++++++++---------
>  1 file changed, 23 insertions(+), 9 deletions(-)

Applied, thanks.

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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