linux-kernel - Re: [PATCH v2 3/3] spi: xilinx: Make num_chipselect 8-bit in the struct xspi_platform

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Message-ID: <89afddbe-f285-4830-b3c3-27150852d562@amd.com>
Date: Tue, 12 Mar 2024 15:19:34 +0100
From: Michal Simek <michal.simek@....com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
 linux-spi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Cc: Mark Brown <broonie@...nel.org>
Subject: Re: [PATCH v2 3/3] spi: xilinx: Make num_chipselect 8-bit in the
 struct xspi_platform_data



On 3/8/24 17:27, Andy Shevchenko wrote:
> There is no use for whole 16-bit for the number of chip select pins.
> Drop it to 8 bits and reshuffle the data structure layout to avoid
> unnecessary paddings.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>   include/linux/spi/xilinx_spi.h | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/include/linux/spi/xilinx_spi.h b/include/linux/spi/xilinx_spi.h
> index 4ba8f53ce570..1b8d984668b6 100644
> --- a/include/linux/spi/xilinx_spi.h
> +++ b/include/linux/spi/xilinx_spi.h
> @@ -8,17 +8,17 @@ struct spi_board_info;
>   
>   /**
>    * struct xspi_platform_data - Platform data of the Xilinx SPI driver
> - * @num_chipselect:	Number of chip select by the IP.
> - * @bits_per_word:	Number of bits per word.
>    * @devices:		Devices to add when the driver is probed.
>    * @num_devices:	Number of devices in the devices array.
> + * @num_chipselect:	Number of chip select by the IP.
> + * @bits_per_word:	Number of bits per word.
>    * @force_irq:		If set, forces QSPI transaction requirements.
>    */
>   struct xspi_platform_data {
> -	u16 num_chipselect;
> -	u8 bits_per_word;
>   	struct spi_board_info *devices;
>   	u8 num_devices;
> +	u8 num_chipselect;
> +	u8 bits_per_word;
>   	bool force_irq;
>   };
>   


Reviewed-by: Michal Simek <michal.simek@....com>

Thanks,
Michal