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SubjectRe: [PATCH 4/5] soundwire: qcom: avoid dependency on CONFIG_SLIMBUS
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On 6/8/20 5:20 PM, Pierre-Louis Bossart wrote:
>
>
> On 6/8/20 3:43 PM, Jonathan Marek wrote:
>> The driver may be used without slimbus, so don't depend on slimbus.
>>
>> Signed-off-by: Jonathan Marek <jonathan@marek.ca>
>> ---
>>   drivers/soundwire/Kconfig | 1 -
>>   drivers/soundwire/qcom.c  | 5 +++++
>>   2 files changed, 5 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/soundwire/Kconfig b/drivers/soundwire/Kconfig
>> index fa2b4ab92ed9..d121cf739090 100644
>> --- a/drivers/soundwire/Kconfig
>> +++ b/drivers/soundwire/Kconfig
>> @@ -33,7 +33,6 @@ config SOUNDWIRE_INTEL
>>   config SOUNDWIRE_QCOM
>>       tristate "Qualcomm SoundWire Master driver"
>> -    depends on SLIMBUS
>>       depends on SND_SOC
>>       help
>>         SoundWire Qualcomm Master driver.
>> diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
>> index 14334442615f..ac81c64768ea 100644
>> --- a/drivers/soundwire/qcom.c
>> +++ b/drivers/soundwire/qcom.c
>> @@ -769,13 +769,18 @@ static int qcom_swrm_probe(struct
>> platform_device *pdev)
>>       if (!ctrl)
>>           return -ENOMEM;
>> +#ifdef CONFIG_SLIMBUS
>>       if (dev->parent->bus == &slimbus_bus) {
>> +#else
>> +    if (false) {
>> +#endif
>
>
> maybe:
>
> if (IS_ENABLED(CONFIG_SLIMBUS) &&
>     dev->parent->bus == &slimbus_bus)
>
>

It won't compile like this, because "slimbus_bus" is not defined when
CONFIG_SLIMBUS is disabled.

>>           ctrl->reg_read = qcom_swrm_ahb_reg_read;
>>           ctrl->reg_write = qcom_swrm_ahb_reg_write;
>>           ctrl->regmap = dev_get_regmap(dev->parent, NULL);
>>           if (!ctrl->regmap)
>>               return -EINVAL;
>>       } else {
>> +
>>           res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>>           ctrl->reg_read = qcom_swrm_cpu_reg_read;
>>

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