Re: [PATCH v3 3/3] spi: geni-qcom: Use devm functions to simplify code

[Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>]

On Mon, Sep 09, 2024 at 03:31:41PM GMT, Jinjie Ruan wrote:
> Use devm_pm_runtime_enable(), devm_request_irq() and
> devm_spi_register_controller() to simplify code.
> 
> And also register a callback spi_geni_release_dma_chan() with
> devm_add_action_or_reset(), to release dma channel in both error
> and device detach path, which can make sure the release sequence is
> consistent with the original one.
> 
> 1. Unregister spi controller.
> 2. Free the IRQ.
> 3. Free DMA chans
> 4. Disable runtime PM.
> 
> So the remove function can also be removed.
> 
> Suggested-by: Doug Anderson <dianders@xxxxxxxxxxxx>
> Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
> ---
> v3:
> - Land the rest of the cleanups afterwards.
> ---
>  drivers/spi/spi-geni-qcom.c | 37 +++++++++++++------------------------
>  1 file changed, 13 insertions(+), 24 deletions(-)
> 
> diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
> index 6f4057330444..8b0039d14605 100644
> --- a/drivers/spi/spi-geni-qcom.c
> +++ b/drivers/spi/spi-geni-qcom.c
> @@ -632,8 +632,10 @@ static int spi_geni_grab_gpi_chan(struct spi_geni_master *mas)
>  	return ret;
>  }
>  
> -static void spi_geni_release_dma_chan(struct spi_geni_master *mas)
> +static void spi_geni_release_dma_chan(void *data)
>  {
> +	struct spi_geni_master *mas = data;
> +
>  	if (mas->rx) {
>  		dma_release_channel(mas->rx);
>  		mas->rx = NULL;
> @@ -1132,6 +1134,12 @@ static int spi_geni_probe(struct platform_device *pdev)
>  	if (ret)
>  		return ret;
>  
> +	ret = devm_add_action_or_reset(dev, spi_geni_release_dma_chan, spi);

This should be mas, not spi.

Doesn't looks like this was tested. Please correct me if I'm wrong.


-- 
With best wishes
Dmitry