linux-kernel - Re: [PATCH 2/3] mfd: mc13xxx: Move SPI erratum workaround into SPI I/O function

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Message-ID: <20130919091318.GA22389@lee--X1>
Date:	Thu, 19 Sep 2013 10:13:18 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Mark Brown <broonie@...nel.org>
Cc:	Samuel Ortiz <sameo@...ux.intel.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Marc Reilly <marc@...esign.com.au>,
	u.kleine-koenig@...gutronix.de, linux-kernel@...r.kernel.org,
	alsa-devel@...a-project.org, linaro-kernel@...ts.linaro.org,
	Mark Brown <broonie@...aro.org>
Subject: Re: [PATCH 2/3] mfd: mc13xxx: Move SPI erratum workaround into SPI
 I/O function

On Wed, 18 Sep 2013, Mark Brown wrote:

> From: Mark Brown <broonie@...aro.org>
> 
> Move the workaround for double sending AUDIO_CODEC and AUDIO_DAC writes
> into the SPI core, aiding refactoring to eliminate the ASoC custom I/O
> functions and avoiding the extra writes for I2C.
> 
> Signed-off-by: Mark Brown <broonie@...aro.org>
> ---
>  drivers/mfd/mc13xxx-spi.c   | 5 +++++
>  include/linux/mfd/mc13xxx.h | 7 +++++++
>  sound/soc/codecs/mc13783.c  | 4 ----
>  3 files changed, 12 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c
> index 77189da..363c359 100644
> --- a/drivers/mfd/mc13xxx-spi.c
> +++ b/drivers/mfd/mc13xxx-spi.c
> @@ -94,10 +94,15 @@ static int mc13xxx_spi_write(void *context, const void *data, size_t count)
>  {
>  	struct device *dev = context;
>  	struct spi_device *spi = to_spi_device(dev);
> +	char *reg = data;

I think this requires a cast.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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