target/linux/mediatek/patches-5.15/433-drivers-spi-mem-Add-spi-calibration-hook.patch

   1 From 06640a5da2973318c06e516da16a5b579622e7c5 Mon Sep 17 00:00:00 2001
   2 From: "SkyLake.Huang" <skylake.huang@mediatek.com>
   3 Date: Thu, 23 Jun 2022 18:37:55 +0800
   4 Subject: [PATCH 3/6] drivers: spi-mem: Add spi calibration hook
   5
   6 Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
   7 ---
   8  drivers/spi/spi-mem.c       | 8 ++++++++
   9  include/linux/spi/spi-mem.h | 4 ++++
  10  2 files changed, 12 insertions(+)
  11
  12 --- a/drivers/spi/spi-mem.c
  13 +++ b/drivers/spi/spi-mem.c
  14 @@ -410,6 +410,14 @@ int spi_mem_exec_op(struct spi_mem *mem,
  15  }
  16  EXPORT_SYMBOL_GPL(spi_mem_exec_op);
  17
  18 +int spi_mem_do_calibration(struct spi_mem *mem,
  19 +       int (*cal_read)(void *priv, u32 *addr, int addrlen, u8 *buf, int readlen),
  20 +       void *priv)
  21 +{
  22 +       return spi_do_calibration(mem->spi->controller, mem->spi, cal_read, priv);
  23 +}
  24 +EXPORT_SYMBOL_GPL(spi_mem_do_calibration);
  25 +
  26  /**
  27   * spi_mem_get_name() - Return the SPI mem device name to be used by the
  28   *                     upper layer if necessary
  29 --- a/include/linux/spi/spi-mem.h
  30 +++ b/include/linux/spi/spi-mem.h
  31 @@ -366,6 +366,10 @@ bool spi_mem_supports_op(struct spi_mem
  32  int spi_mem_exec_op(struct spi_mem *mem,
  33                     const struct spi_mem_op *op);
  34
  35 +int spi_mem_do_calibration(struct spi_mem *mem,
  36 +                       int (*cal_read)(void *, u32 *, int, u8 *, int),
  37 +                       void *priv);
  38 +
  39  const char *spi_mem_get_name(struct spi_mem *mem);
  40
  41  struct spi_mem_dirmap_desc *