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| author | Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com> | 2020-05-05 16:06:13 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-05-05 17:07:58 +0300 |
| commit | c4eadee21fa9afd3dc9dd867c71b642177bf671f (patch) | |
| tree | bb9743311cd8bcf59647325da1564497ca1df6c5 /drivers/spi/spi-dw.h | |
| parent | 299cb65c9dd4791242a102f216583773d962c1ac (diff) | |
| download | linux-c4eadee21fa9afd3dc9dd867c71b642177bf671f.tar.xz | |
spi: dw: Add update_cr0() callback to update CTRLR0
This patch adds update_cr0() callback, in struct dw_spi.
Existing code that configure register CTRLR0 is moved into a new
function, dw_spi_update_cr0(), and this will be the default.
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200505130618.554-3-wan.ahmad.zainie.wan.mohamad@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-dw.h')
| -rw-r--r-- | drivers/spi/spi-dw.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h index 6c34720b1b1d..2745a7e7405c 100644 --- a/drivers/spi/spi-dw.h +++ b/drivers/spi/spi-dw.h @@ -114,6 +114,8 @@ struct dw_spi { u16 bus_num; u16 num_cs; /* supported slave numbers */ void (*set_cs)(struct spi_device *spi, bool enable); + u32 (*update_cr0)(struct spi_controller *master, struct spi_device *spi, + struct spi_transfer *transfer); /* Current message transfer state info */ size_t len; @@ -240,6 +242,9 @@ extern int dw_spi_add_host(struct device *dev, struct dw_spi *dws); extern void dw_spi_remove_host(struct dw_spi *dws); extern int dw_spi_suspend_host(struct dw_spi *dws); extern int dw_spi_resume_host(struct dw_spi *dws); +extern u32 dw_spi_update_cr0(struct spi_controller *master, + struct spi_device *spi, + struct spi_transfer *transfer); /* platform related setup */ extern int dw_spi_mid_init(struct dw_spi *dws); /* Intel MID platforms */ |