Re: [PATCH v5 2/4] drm/bridge: synopsys: Add DW HDMI QP TX Controller support library

[Cristian Ciocaltea]

On 9/8/24 12:11 PM, Markus Elfring wrote:
> …
>> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
>> @@ -0,0 +1,708 @@
> …
>> +static int dw_hdmi_qp_i2c_xfer(struct i2c_adapter *adap,
>> +			       struct i2c_msg *msgs, int num)
>> +{
> …
>> +	mutex_lock(&i2c->lock);
> …
>> +	dw_hdmi_qp_mod(hdmi, 0, I2CM_OP_DONE_MASK_N | I2CM_NACK_RCVD_MASK_N,
>> +		       MAINUNIT_1_INT_MASK_N);
>> +
>> +	mutex_unlock(&i2c->lock);
>> +
>> +	return ret;
>> +}
> …
> 
> Under which circumstances would you become interested to apply a statement
> like “guard(mutex)(&i2c->lock);”?
> https://elixir.bootlin.com/linux/v6.11-rc6/source/include/linux/mutex.h#L196

Applied for the upcoming v7.

Thanks,
Cristian