Re: [PATCH 03/13] spi: spi-fsl-lpspi: Reset FIFO and disable module on transfer abort

[Frank Li <Frank.li@nxp.com>]

On Thu, Aug 14, 2025 at 05:06:43PM +0100, James Clark wrote:
> From: Larisa Grigore <larisa.grigore@nxp.com>
>
> In DMA mode fsl_lpspi_reset() is always called at the end, even when the
> transfer is aborted. When not using DMA, aborts skip the reset leaving

Nit: s/"When not using DMA"/In PIO mode

Reviewed-by: Frank Li <Frank.Li@nxp.com>

> the FIFO filled and the module enabled.
>
> Fix it by always calling fsl_lpspi_reset().
>
> Fixes: a15dc3d657fa ("spi: lpspi: Fix CLK pin becomes low before one transfer")
> Signed-off-by: Larisa Grigore <larisa.grigore@nxp.com>
> Signed-off-by: James Clark <james.clark@linaro.org>
> ---
>  drivers/spi/spi-fsl-lpspi.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
> index c65eb6d31ee7..aab92ee7eb94 100644
> --- a/drivers/spi/spi-fsl-lpspi.c
> +++ b/drivers/spi/spi-fsl-lpspi.c
> @@ -734,12 +734,10 @@ static int fsl_lpspi_pio_transfer(struct spi_controller *controller,
>  	fsl_lpspi_write_tx_fifo(fsl_lpspi);
>
>  	ret = fsl_lpspi_wait_for_completion(controller);
> -	if (ret)
> -		return ret;
>
>  	fsl_lpspi_reset(fsl_lpspi);
>
> -	return 0;
> +	return ret;
>  }
>
>  static int fsl_lpspi_transfer_one(struct spi_controller *controller,
>
> --
> 2.34.1
>