[PATCH v1 04/40] i2c: altera: Use generic definitions for bus frequencies

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

Since we have generic definitions for bus frequencies, let's use them.

Cc: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 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