[U-Boot] [PATCH] mmc: uniphier-sd: Add vqmmc regulator support

Jaehoon Chung jh80.chung at samsung.com
Tue Sep 26 07:41:31 UTC 2017


Hi Marek,

On 09/26/2017 01:47 AM, Marek Vasut wrote:
> On 09/15/2017 09:10 PM, Marek Vasut wrote:
>> Add initial support for setting the vqmmc regulator. Since we do not
>> support 1V8 modes, set the regulator to 3V3 and enable it.
>>
>> Signed-off-by: Marek Vasut <marek.vasut+renesas at gmail.com>
>> Cc: Masahiro Yamada <yamada.masahiro at socionext.com>
>> Cc: Jaehoon Chung <jh80.chung at samsung.com>
> 
> Anything ?! I don't see this in the PR ...

Sorry...I missed this patch..First, i have checked on patchwork.
Will pick this patch into u-boot-mmc.

Best Regards,
Jaehoon Chung

> 
>> ---
>>  drivers/mmc/uniphier-sd.c | 13 +++++++++++++
>>  1 file changed, 13 insertions(+)
>>
>> diff --git a/drivers/mmc/uniphier-sd.c b/drivers/mmc/uniphier-sd.c
>> index 3c52161067..0d1203cb76 100644
>> --- a/drivers/mmc/uniphier-sd.c
>> +++ b/drivers/mmc/uniphier-sd.c
>> @@ -14,6 +14,7 @@
>>  #include <linux/dma-direction.h>
>>  #include <linux/io.h>
>>  #include <linux/sizes.h>
>> +#include <power/regulator.h>
>>  #include <asm/unaligned.h>
>>  
>>  DECLARE_GLOBAL_DATA_PTR;
>> @@ -756,6 +757,9 @@ static int uniphier_sd_probe(struct udevice *dev)
>>  	fdt_addr_t base;
>>  	struct clk clk;
>>  	int ret;
>> +#ifdef CONFIG_DM_REGULATOR
>> +	struct udevice *vqmmc_dev;
>> +#endif
>>  
>>  	base = devfdt_get_addr(dev);
>>  	if (base == FDT_ADDR_T_NONE)
>> @@ -765,6 +769,15 @@ static int uniphier_sd_probe(struct udevice *dev)
>>  	if (!priv->regbase)
>>  		return -ENOMEM;
>>  
>> +#ifdef CONFIG_DM_REGULATOR
>> +	ret = device_get_supply_regulator(dev, "vqmmc-supply", &vqmmc_dev);
>> +	if (!ret) {
>> +		/* Set the regulator to 3.3V until we support 1.8V modes */
>> +		regulator_set_value(vqmmc_dev, 3300000);
>> +		regulator_set_enable(vqmmc_dev, true);
>> +	}
>> +#endif
>> +
>>  	ret = clk_get_by_index(dev, 0, &clk);
>>  	if (ret < 0) {
>>  		dev_err(dev, "failed to get host clock\n");
>>
> 
> 



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