[PATCH v2] mmc: atmel-sdhci: fix the clk_enable call in case of no ops

[Eugen.Hristev at microchip.com]

On 09.11.2020 14:14, Jaehoon Chung wrote:
> On 11/9/20 8:02 PM, Eugen Hristev wrote:
>> If the clock driver does not offer a clk_enable ops, then the system will
>> return -ENOSYS.
>> The clk_enable works with CCF (common clock framework).
>> Some clocks in some cases (like the generic clock for some products: sama5d2)
>> do not have the clk_enable primitive, and in this case probing of the driver
>> will fail.
>> This patch changes the behavior to return an error in case there is really
>> an error, and not a missing primitive.
>> If the clock driver does not have an enable primitive, most likely clocks
>> are always enabled or enabled in the set_rate primitives.
>>
>> Fixes: 81f16438d4 ("mmc: atmel-sdhci: enable the required generic clock")
>> Signed-off-by: Eugen Hristev <eugen.hristev at microchip.com>
> 
> Reviewed-by: Jaehoon Chung <jh80.chung at samsung.com>
> 
> Best Regards,
> Jaehoon Chung
> 
>> ---

Applied to u-boot-atmel/master