[PATCH] mc13xxx: make driver-provided SPI frequency overridable
Sascha Hauer
s.hauer at pengutronix.de
Wed Jul 20 23:18:31 PDT 2016
On Wed, Jul 20, 2016 at 07:57:28AM +0200, Alexander Kurz wrote:
> The preset SPI frequency for mc13xxx PMIC introduced with patch 6e18b3a48ee4
> ("mc13xxx: Define maximum SPI clock frequency global to driver") is not
> desirable or working on all boards. Provide a possibility to override
> the default SPI max_speed_hz from board code.
>
> Signed-off-by: Alexander Kurz <akurz at blala.de>
> ---
> drivers/mfd/mc13xxx.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
Applied, thanks
Sascha
>
> diff --git a/drivers/mfd/mc13xxx.c b/drivers/mfd/mc13xxx.c
> index 68d70c5..b2fcd95 100644
> --- a/drivers/mfd/mc13xxx.c
> +++ b/drivers/mfd/mc13xxx.c
> @@ -330,7 +330,8 @@ static int __init mc13xxx_probe(struct device_d *dev)
> mc_dev->spi = dev->type_data;
> mc_dev->spi->mode = SPI_MODE_0 | SPI_CS_HIGH;
> mc_dev->spi->bits_per_word = 32;
> - mc_dev->spi->max_speed_hz = 20000000;
> + mc_dev->spi->max_speed_hz = mc_dev->spi->max_speed_hz ?
> + mc_dev->spi->max_speed_hz : 20000000;
> mc_dev->map = regmap_init(dev, ®map_mc13xxx_spi_bus,
> mc_dev, &mc13xxx_regmap_spi_config);
> }
> --
> 2.1.4
>
>
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