On Thursday 26 September 2013 05:22 AM, Trent Piepho wrote:
> Now that spi_device->mode is a u16, the chip_select, bits_per_mode,
> and mode fields pack poorly, taking 8 bytes: four data and four
> padding. By moving (u8)bits_per_word up one position, to after
> (u8)chip_select, they pack better and only use 4 bytes.
>
> Signed-off-by: Trent Piepho<tpie...@gmail.com>
> ---
> include/linux/spi/spi.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
> index 887116d..beaffe8 100644
> --- a/include/linux/spi/spi.h
> +++ b/include/linux/spi/spi.h
> @@ -74,6 +74,7 @@ struct spi_device {
> struct spi_master *master;
> u32 max_speed_hz;
> u8 chip_select;
> + u8 bits_per_word;
> u16 mode;
> #define SPI_CPHA 0x01 /* clock phase */
> #define SPI_CPOL 0x02 /* clock polarity */
> @@ -91,7 +92,6 @@ struct spi_device {
> #define SPI_TX_QUAD 0x200 /* transmit with 4
> wires */
> #define SPI_RX_DUAL 0x400 /* receive with 2 wires
> */
> #define SPI_RX_QUAD 0x800 /* receive with 4 wires
> */
> - u8 bits_per_word;
> int irq;
> void *controller_state;
> void *controller_data;
>
Reviewed-by: Sourav Poddar<sourav.pod...@ti.com>
Tested-by: Sourav Poddar<sourav.pod...@ti.com>
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