From 34da258bb0465de4bf44dc8949a9536cc06bf725 Mon Sep 17 00:00:00 2001 From: Venkatesh Yadav Abbarapu Date: Thu, 26 Sep 2024 10:25:05 +0530 Subject: spi: spi-uclass: Read chipselect and restrict capabilities Read chipselect properties from DT which are populated using 'reg' property and save it in plat->cs[] array for later use. Also read multi chipselect capability which is used for parallel-memories and return errors if they are passed on using DT but driver is not capable of handling it. Signed-off-by: Ashok Reddy Soma Signed-off-by: Venkatesh Yadav Abbarapu --- include/spi.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/spi.h b/include/spi.h index 6e8e0cce7f2..b7148864e78 100644 --- a/include/spi.h +++ b/include/spi.h @@ -80,7 +80,7 @@ struct dm_spi_bus { * @mode: SPI mode to use for this device (see SPI mode flags) */ struct dm_spi_slave_plat { - unsigned int cs; + unsigned int cs[SPI_CS_CNT_MAX]; uint max_hz; uint mode; }; @@ -166,6 +166,12 @@ struct spi_slave { #define SPI_XFER_ONCE (SPI_XFER_BEGIN | SPI_XFER_END) #define SPI_XFER_U_PAGE BIT(4) #define SPI_XFER_STACKED BIT(5) + /* + * Flag indicating that the spi-controller has multi chip select + * capability and can assert/de-assert more than one chip select + * at once. + */ + bool multi_cs_cap; }; /** -- cgit v1.2.3