diff options
| author | Simon Glass <sjg@chromium.org> | 2020-01-23 11:48:11 -0700 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2020-01-27 07:21:05 +0100 |
| commit | 80a03db4f3bfac8220d0445c33aee24c5a3c13b1 (patch) | |
| tree | b18ea1de3a654c683fe59aec4b000a97f0d9369f /drivers/i2c/designware_i2c.h | |
| parent | 9bb743d9c76b5aa98bc29e54aeefea1204a31c15 (diff) | |
| download | u-boot-80a03db4f3bfac8220d0445c33aee24c5a3c13b1.tar.gz | |
i2c: designware_i2c: Read device-tree properties
The i2c controller defines a few timing properties. Read these in and
store them for use by the driver.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'drivers/i2c/designware_i2c.h')
| -rw-r--r-- | drivers/i2c/designware_i2c.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/i2c/designware_i2c.h b/drivers/i2c/designware_i2c.h index 5b477830d4..f32dc0f854 100644 --- a/drivers/i2c/designware_i2c.h +++ b/drivers/i2c/designware_i2c.h @@ -167,10 +167,24 @@ struct dw_scl_sda_cfg { u32 sda_hold; }; +/** + * struct dw_i2c - private information for the bus + * + * @regs: Registers pointer + * @scl_sda_cfg: Deprecated information for x86 (should move to device tree) + * @resets: Resets for the I2C controller + * @scl_rise_time_ns: Configured SCL rise time in nanoseconds + * @scl_fall_time_ns: Configured SCL fall time in nanoseconds + * @sda_hold_time_ns: Configured SDA hold time in nanoseconds + * @clk: Clock input to the I2C controller + */ struct dw_i2c { struct i2c_regs *regs; struct dw_scl_sda_cfg *scl_sda_cfg; struct reset_ctl_bulk resets; + u32 scl_rise_time_ns; + u32 scl_fall_time_ns; + u32 sda_hold_time_ns; #if CONFIG_IS_ENABLED(CLK) struct clk clk; #endif @@ -180,5 +194,6 @@ extern const struct dm_i2c_ops designware_i2c_ops; int designware_i2c_probe(struct udevice *bus); int designware_i2c_remove(struct udevice *dev); +int designware_i2c_ofdata_to_platdata(struct udevice *bus); #endif /* __DW_I2C_H_ */ |