* [PATCH] mc13xxx: make driver-provided SPI frequency overridable
@ 2016-07-20 5:57 Alexander Kurz
2016-07-21 6:18 ` Sascha Hauer
0 siblings, 1 reply; 2+ messages in thread
From: Alexander Kurz @ 2016-07-20 5:57 UTC (permalink / raw)
To: barebox; +Cc: Alexander Kurz
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@blala.de>
---
drivers/mfd/mc13xxx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] mc13xxx: make driver-provided SPI frequency overridable
2016-07-20 5:57 [PATCH] mc13xxx: make driver-provided SPI frequency overridable Alexander Kurz
@ 2016-07-21 6:18 ` Sascha Hauer
0 siblings, 0 replies; 2+ messages in thread
From: Sascha Hauer @ 2016-07-21 6:18 UTC (permalink / raw)
To: Alexander Kurz; +Cc: barebox
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@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
>
>
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
>
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2016-07-21 6:18 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-07-20 5:57 [PATCH] mc13xxx: make driver-provided SPI frequency overridable Alexander Kurz
2016-07-21 6:18 ` Sascha Hauer
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox