diff options
| author | Jarkko Nikula <jarkko.nikula@linux.intel.com> | 2018-06-19 14:23:22 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2018-07-04 00:05:55 +0300 |
| commit | 1080ee7e28e1cea86310739e5dd4612868768aed (patch) | |
| tree | dd8e2fcdd6cf8a99cfedd7e45181ea3b1489837e /drivers/i2c/busses/i2c-designware-core.h | |
| parent | 3bd4f277274bd7dde65879e5c8cd16d0b34eba90 (diff) | |
| download | linux-1080ee7e28e1cea86310739e5dd4612868768aed.tar.xz | |
i2c: designware: Move SDA hold time configuration to common code
SDA hold time configuration is common to both master and slave code. It
is also something that can be done once during probe and do only
register write when HW needs to be reinitialized.
Remove duplication and move SDA hold time configuration to common code.
It will be called from slave probe and for master code from a new
i2c_dw_set_timings_master() to where we will populate more probe time
timing parameter setting.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c/busses/i2c-designware-core.h')
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-core.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index 5d54f70710ad..29b92f05bb2b 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -298,6 +298,7 @@ void dw_writel(struct dw_i2c_dev *dev, u32 b, int offset); int i2c_dw_set_reg_access(struct dw_i2c_dev *dev); u32 i2c_dw_scl_hcnt(u32 ic_clk, u32 tSYMBOL, u32 tf, int cond, int offset); u32 i2c_dw_scl_lcnt(u32 ic_clk, u32 tLOW, u32 tf, int offset); +int i2c_dw_set_sda_hold(struct dw_i2c_dev *dev); unsigned long i2c_dw_clk_rate(struct dw_i2c_dev *dev); int i2c_dw_prepare_clk(struct dw_i2c_dev *dev, bool prepare); int i2c_dw_acquire_lock(struct dw_i2c_dev *dev); |