Re: [PATCH 3/4] soundwire: bus_type: Create IRQ mapping before calling driver probe()

[Vinod Koul <vkoul@kernel.org>]

On 10-08-26, 11:40, Richard Fitzgerald wrote:
> Call sdw_irq_create_mapping() before calling the peripheral driver
> probe() so that it is possible to request the IRQ during probe().
> 
> Previously creation of the mapping was conditional on the use_domain_irq
> flag in the driver properties. But these are filled in after probe(),
> which meant it wasn't possible to request the IRQ during probe(). This
> was ok for MFD drivers where only children requested the IRQ. But for
> normal drivers it led to the non-standard behavior of having to defer
> requesting the IRQ until after probe().

Shouldnt that still be the case (conditionally creating mapping). Does
every need this mapping?

> 
> Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
> ---
>  drivers/soundwire/bus_type.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/soundwire/bus_type.c b/drivers/soundwire/bus_type.c
> index e73c1bea90593..d61a97c5b41ef 100644
> --- a/drivers/soundwire/bus_type.c
> +++ b/drivers/soundwire/bus_type.c
> @@ -105,6 +105,9 @@ static int sdw_bus_probe(struct device *dev)
>  	}
>  	slave->index = ret;
>  
> +	/* Create IRQ mapping now so the driver can get it in probe() */
> +	sdw_irq_create_mapping(slave);
> +
>  	ret = drv->probe(slave, id);
>  	if (ret) {
>  		ida_free(&slave->bus->slave_ida, slave->index);
> @@ -117,9 +120,6 @@ static int sdw_bus_probe(struct device *dev)
>  	if (drv->ops && drv->ops->read_prop)
>  		drv->ops->read_prop(slave);
>  
> -	if (slave->prop.use_domain_irq)
> -		sdw_irq_create_mapping(slave);
> -
>  	/* init the dynamic sysfs attributes we need */
>  	ret = sdw_slave_sysfs_dpn_init(slave);
>  	if (ret < 0)
> -- 
> 2.47.3

-- 
~Vinod