From 06640a5da2973318c06e516da16a5b579622e7c5 Mon Sep 17 00:00:00 2001 From: "SkyLake.Huang" Date: Thu, 23 Jun 2022 18:37:55 +0800 Subject: [PATCH 3/6] drivers: spi-mem: Add spi calibration hook Signed-off-by: SkyLake.Huang --- drivers/spi/spi-mem.c | 8 ++++++++ include/linux/spi/spi-mem.h | 4 ++++ 2 files changed, 12 insertions(+) --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -419,6 +419,14 @@ int spi_mem_exec_op(struct spi_mem *mem, } EXPORT_SYMBOL_GPL(spi_mem_exec_op); +int spi_mem_do_calibration(struct spi_mem *mem, + int (*cal_read)(void *priv, u32 *addr, int addrlen, u8 *buf, int readlen), + void *priv) +{ + return spi_do_calibration(mem->spi->controller, mem->spi, cal_read, priv); +} +EXPORT_SYMBOL_GPL(spi_mem_do_calibration); + /** * spi_mem_get_name() - Return the SPI mem device name to be used by the * upper layer if necessary --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -366,6 +366,10 @@ bool spi_mem_supports_op(struct spi_mem int spi_mem_exec_op(struct spi_mem *mem, const struct spi_mem_op *op); +int spi_mem_do_calibration(struct spi_mem *mem, + int (*cal_read)(void *, u32 *, int, u8 *, int), + void *priv); + const char *spi_mem_get_name(struct spi_mem *mem); struct spi_mem_dirmap_desc *