[U-Boot] [PATCH] power: pmic: tps65218: Fix tps65218_voltage_update function

Keerthy j-keerthy at ti.com
Thu May 25 13:52:58 UTC 2017



On Thursday 25 May 2017 07:18 PM, Jaehoon Chung wrote:
> On 05/24/2017 01:49 PM, Keerthy wrote:
>> Currently while setting the vsel value for dcdc1 and dcdc2
>> the driver is wrongly masking the entire 8 bits in the process
>> clearing PFM (bit7) field as well. Hence describe an appropriate
>> mask for vsel field and modify only those bits in the vsel
>> mask.
>>
>> Source: http://www.ti.com/lit/ds/symlink/tps65218.pdf
>>
>> Signed-off-by: Keerthy <j-keerthy at ti.com>
>> Fixes: 86db550b38 ("power: Add support for the TPS65218 PMIC")
> 
> If delegate to me..i will pick this.
> 
> Reviewed-by: Jaehoon Chung <jh80.chung at samsung.com>

Thanks Jaehoon Chung.

> 
>> ---
>>  drivers/power/pmic/pmic_tps65218.c | 2 +-
>>  include/power/tps65218.h           | 2 ++
>>  2 files changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/power/pmic/pmic_tps65218.c b/drivers/power/pmic/pmic_tps65218.c
>> index f32fa40..c5e768a 100644
>> --- a/drivers/power/pmic/pmic_tps65218.c
>> +++ b/drivers/power/pmic/pmic_tps65218.c
>> @@ -101,7 +101,7 @@ int tps65218_voltage_update(uchar dc_cntrl_reg, uchar volt_sel)
>>  
>>  	/* set voltage level */
>>  	if (tps65218_reg_write(TPS65218_PROT_LEVEL_2, dc_cntrl_reg, volt_sel,
>> -			       TPS65218_MASK_ALL_BITS))
>> +			       TPS65218_DCDC_VSEL_MASK))
>>  		return 1;
>>  
>>  	/* set GO bit to initiate voltage transition */
>> diff --git a/include/power/tps65218.h b/include/power/tps65218.h
>> index 4d68faa..e3538e2 100644
>> --- a/include/power/tps65218.h
>> +++ b/include/power/tps65218.h
>> @@ -56,6 +56,8 @@ enum {
>>  
>>  #define TPS65218_MASK_ALL_BITS			0xFF
>>  
>> +#define TPS65218_DCDC_VSEL_MASK			0x3F
>> +
>>  #define TPS65218_DCDC_VOLT_SEL_0950MV		0x0a
>>  #define TPS65218_DCDC_VOLT_SEL_1100MV		0x19
>>  #define TPS65218_DCDC_VOLT_SEL_1200MV		0x23
>>
> 


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