From 303feb3cc06ac0665d0ee9c1414941200e60e8a3 Mon Sep 17 00:00:00 2001 From: Amit Kumar Mahapatra Date: Fri, 20 Jan 2023 00:23:30 +0530 Subject: spi: Add APIs in spi core to set/get spi->chip_select and spi->cs_gpiod Supporting multi-cs in spi core and spi controller drivers would require the chip_select & cs_gpiod members of struct spi_device to be an array. But changing the type of these members to array would break the spi driver functionality. To make the transition smoother introduced four new APIs to get/set the spi->chip_select & spi->cs_gpiod and replaced all spi->chip_select and spi->cs_gpiod references in spi core with the API calls. While adding multi-cs support in further patches the chip_select & cs_gpiod members of the spi_device structure would be converted to arrays & the "idx" parameter of the APIs would be used as array index i.e., spi->chip_select[idx] & spi->cs_gpiod[idx] respectively. Suggested-by: Lars-Peter Clausen Signed-off-by: Amit Kumar Mahapatra Reviewed-by: Michal Simek Link: https://lore.kernel.org/r/20230119185342.2093323-2-amit.kumar-mahapatra@amd.com Signed-off-by: Mark Brown --- include/linux/spi/spi.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'include') diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 9a32495fbb1f..9b23a1d0dd0d 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -263,6 +263,26 @@ static inline void *spi_get_drvdata(struct spi_device *spi) return dev_get_drvdata(&spi->dev); } +static inline u8 spi_get_chipselect(struct spi_device *spi, u8 idx) +{ + return spi->chip_select; +} + +static inline void spi_set_chipselect(struct spi_device *spi, u8 idx, u8 chipselect) +{ + spi->chip_select = chipselect; +} + +static inline struct gpio_desc *spi_get_csgpiod(struct spi_device *spi, u8 idx) +{ + return spi->cs_gpiod; +} + +static inline void spi_set_csgpiod(struct spi_device *spi, u8 idx, struct gpio_desc *csgpiod) +{ + spi->cs_gpiod = csgpiod; +} + struct spi_message; /** -- cgit v1.2.3