diff options
Diffstat (limited to 'drivers/i2c/stm32f7_i2c.c')
| -rw-r--r-- | drivers/i2c/stm32f7_i2c.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/i2c/stm32f7_i2c.c b/drivers/i2c/stm32f7_i2c.c index b6c71789ee..eaa1d69289 100644 --- a/drivers/i2c/stm32f7_i2c.c +++ b/drivers/i2c/stm32f7_i2c.c @@ -20,6 +20,7 @@ #include <linux/err.h> #include <linux/io.h> #include <linux/printk.h> +#include <linux/time.h> /* STM32 I2C registers */ struct stm32_i2c_regs { @@ -121,8 +122,6 @@ struct stm32_i2c_regs { #define STM32_SCLH_MAX BIT(8) #define STM32_SCLL_MAX BIT(8) -#define STM32_NSEC_PER_SEC 1000000000L - /** * struct stm32_i2c_spec - private i2c specification timing * @rate: I2C bus speed (Hz) @@ -591,7 +590,7 @@ static int stm32_i2c_choose_solution(u32 i2cclk, struct stm32_i2c_timings *s) { struct stm32_i2c_timings *v; - u32 i2cbus = DIV_ROUND_CLOSEST(STM32_NSEC_PER_SEC, + u32 i2cbus = DIV_ROUND_CLOSEST(NSEC_PER_SEC, setup->speed_freq); u32 clk_error_prev = i2cbus; u32 clk_min, clk_max; @@ -607,8 +606,8 @@ static int stm32_i2c_choose_solution(u32 i2cclk, dnf_delay = setup->dnf * i2cclk; tsync = af_delay_min + dnf_delay + (2 * i2cclk); - clk_max = STM32_NSEC_PER_SEC / specs->rate_min; - clk_min = STM32_NSEC_PER_SEC / specs->rate_max; + clk_max = NSEC_PER_SEC / specs->rate_min; + clk_min = NSEC_PER_SEC / specs->rate_max; /* * Among Prescaler possibilities discovered above figures out SCL Low @@ -686,7 +685,7 @@ static int stm32_i2c_compute_timing(struct stm32_i2c_priv *i2c_priv, const struct stm32_i2c_spec *specs; struct stm32_i2c_timings *v, *_v; struct list_head solutions; - u32 i2cclk = DIV_ROUND_CLOSEST(STM32_NSEC_PER_SEC, setup->clock_src); + u32 i2cclk = DIV_ROUND_CLOSEST(NSEC_PER_SEC, setup->clock_src); int ret; specs = get_specs(setup->speed_freq); |