From: David Lechner Date: Thu, 13 Sep 2018 00:39:17 +0000 (-0500) Subject: spi: add new SPI_CS_WORD flag X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0baf9eb25572eea0cf48249c1d152d8373956a7c;p=linux.git spi: add new SPI_CS_WORD flag This adds a new SPI mode flag, SPI_CS_WORD, that is used to indicate that a SPI device requires the chip select to be toggled after each word that is transferred. Signed-off-by: David Lechner Signed-off-by: Mark Brown --- diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index a64235e053216..7cc1466111f53 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -163,6 +163,7 @@ 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 */ +#define SPI_CS_WORD 0x1000 /* toggle cs after each word */ int irq; void *controller_state; void *controller_data; @@ -177,7 +178,6 @@ struct spi_device { * the controller talks to each chip, like: * - memory packing (12 bit samples into low bits, others zeroed) * - priority - * - drop chipselect after each word * - chipselect delays * - ... */