[Uboot-stm32] [PATCH 3/3] clk: stm32mp: handle ck_usbo_48m clock provided by USBPHYC

Patrice CHOTARD patrice.chotard at foss.st.com
Tue May 10 09:45:08 CEST 2022



On 5/6/22 16:26, Patrice CHOTARD wrote:
> Hi Patrick
> 
> On 4/26/22 14:37, Patrick Delaunay wrote:
>> Handle the input clock of RCC USB_PHY_48, provided by USBPHYC
>> and named "ck_usbo_48m".
>>
>> Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
>> ---
>>
>>  drivers/clk/clk_stm32mp1.c | 35 ++++++++++++++++++++---------------
>>  1 file changed, 20 insertions(+), 15 deletions(-)
>>
>> diff --git a/drivers/clk/clk_stm32mp1.c b/drivers/clk/clk_stm32mp1.c
>> index 83ab6b728e..a02921c43a 100644
>> --- a/drivers/clk/clk_stm32mp1.c
>> +++ b/drivers/clk/clk_stm32mp1.c
>> @@ -962,6 +962,24 @@ static ulong stm32mp1_read_pll_freq(struct stm32mp1_clk_priv *priv,
>>  	return dfout;
>>  }
>>  
>> +static ulong stm32mp1_clk_get_by_name(const char *name)
>> +{
>> +	struct clk clk;
>> +	struct udevice *dev = NULL;
>> +	ulong clock = 0;
>> +
>> +	if (!uclass_get_device_by_name(UCLASS_CLK, name, &dev)) {
>> +		if (clk_request(dev, &clk)) {
>> +			log_err("%s request", name);
>> +		} else {
>> +			clk.id = 0;
>> +			clock = clk_get_rate(&clk);
>> +		}
>> +	}
>> +
>> +	return clock;
>> +}
>> +
>>  static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p)
>>  {
>>  	u32 reg;
>> @@ -1127,24 +1145,11 @@ static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p)
>>  		break;
>>  	/* other */
>>  	case _USB_PHY_48:
>> -		clock = 48000000;
>> +		clock = stm32mp1_clk_get_by_name("ck_usbo_48m");
>>  		break;
>>  	case _DSI_PHY:
>> -	{
>> -		struct clk clk;
>> -		struct udevice *dev = NULL;
>> -
>> -		if (!uclass_get_device_by_name(UCLASS_CLK, "ck_dsi_phy",
>> -					       &dev)) {
>> -			if (clk_request(dev, &clk)) {
>> -				log_err("ck_dsi_phy request");
>> -			} else {
>> -				clk.id = 0;
>> -				clock = clk_get_rate(&clk);
>> -			}
>> -		}
>> +		clock = stm32mp1_clk_get_by_name("ck_dsi_phy");
>>  		break;
>> -	}
>>  	default:
>>  		break;
>>  	}
> Reviewed-by: Patrice Chotard <patrice.chotard at foss.st.com>
> 
> Thanks
> Patrice
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Applied to u-boot-stm32

Thanks
Patrice


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