i2c: stm32f7: support DT binding i2c-analog-filter

Replace driver internally coded enabling/disabling of the
analog-filter with the DT binding "i2c-analog-filter".

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

diff --git a/drivers/i2c/stm32f7_i2c.c b/drivers/i2c/stm32f7_i2c.c
index b449084..e71a0e0 100644 (file)
--- a/drivers/i2c/stm32f7_i2c.c
+++ b/drivers/i2c/stm32f7_i2c.c
@@ -108,7 +108,6 @@ struct stm32_i2c_regs {
 #define STM32_I2C_DNF_DEFAULT                  0
 #define STM32_I2C_DNF_MAX                      16
 
-#define STM32_I2C_ANALOG_FILTER_ENABLE 1
 #define STM32_I2C_ANALOG_FILTER_DELAY_MIN      50      /* ns */
 #define STM32_I2C_ANALOG_FILTER_DELAY_MAX      260     /* ns */
 
@@ -919,7 +918,7 @@ static int stm32_of_to_plat(struct udevice *dev)
                                         STM32_I2C_FALL_TIME_DEFAULT);
 
        i2c_priv->setup.dnf = STM32_I2C_DNF_DEFAULT;
-       i2c_priv->setup.analog_filter = STM32_I2C_ANALOG_FILTER_ENABLE;
+       i2c_priv->setup.analog_filter = dev_read_bool(dev, "i2c-analog-filter");
 
        /* Optional */
        i2c_priv->regmap = syscon_regmap_lookup_by_phandle(dev,