Since we have generic definitions for bus frequencies, let's use them.
Cc: Thor Thayer <thor.thayer@xxxxxxxxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/i2c/busses/i2c-altera.c | 8 ++++----
include/linux/i2c.h | 1 +
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/i2c/busses/i2c-altera.c b/drivers/i2c/busses/i2c-altera.c
index 5255d3755411..1f70bbd6e084 100644
--- a/drivers/i2c/busses/i2c-altera.c
+++ b/drivers/i2c/busses/i2c-altera.c
@@ -142,12 +142,12 @@ static inline void altr_i2c_stop(struct altr_i2c_dev *idev)
static void altr_i2c_init(struct altr_i2c_dev *idev)
{
u32 divisor = clk_get_rate(idev->i2c_clk) / idev->bus_clk_rate;
- u32 clk_mhz = clk_get_rate(idev->i2c_clk) / 1000000;
+ u32 clk_mhz = clk_get_rate(idev->i2c_clk) / HZ_PER_MHZ;
u32 tmp = (ALTR_I2C_THRESHOLD << ALTR_I2C_CTRL_RXT_SHFT) |
(ALTR_I2C_THRESHOLD << ALTR_I2C_CTRL_TCT_SHFT);
u32 t_high, t_low;
- if (idev->bus_clk_rate <= 100000) {
+ if (idev->bus_clk_rate <= I2C_STANDARD_MODE_FREQ) {
tmp &= ~ALTR_I2C_CTRL_BSPEED;
/* Standard mode SCL 50/50 */
t_high = divisor * 1 / 2;
@@ -423,10 +423,10 @@ static int altr_i2c_probe(struct platform_device *pdev)
&idev->bus_clk_rate);
if (val) {
dev_err(&pdev->dev, "Default to 100kHz\n");
- idev->bus_clk_rate = 100000; /* default clock rate */
+ idev->bus_clk_rate = I2C_STANDARD_MODE_FREQ; /* default clock rate */
}
- if (idev->bus_clk_rate > 400000) {
+ if (idev->bus_clk_rate > I2C_FAST_MODE_FREQ) {
dev_err(&pdev->dev, "invalid clock-frequency %d\n",
idev->bus_clk_rate);
return -EINVAL;
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 708ac1262a0c..1b9c483bd9f5 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -40,6 +40,7 @@ typedef int (*i2c_slave_cb_t)(struct i2c_client *client,
enum i2c_slave_event event, u8 *val);
#define HZ_PER_KHZ 1000
+#define HZ_PER_MHZ 1000000
/* I2C Frequency Modes */
#define I2C_STANDARD_MODE_FREQ (100 * HZ_PER_KHZ)
--
2.25.0
