diff options
| author | Zheng Yongjun <zhengyongjun3@huawei.com> | 2020-12-22 21:31:31 +0800 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2021-01-05 17:37:02 +0100 |
| commit | 9d64834b2a68b1c969f8c8d845471c0e91191549 (patch) | |
| tree | f7b603b8168707614d3ed92da81838efa30a84bb | |
| parent | 2478b9c1dcc9aa84cfd71ed7b5ca2a2c0ede75b7 (diff) | |
i2c: use DIV_ROUND_UP macro to do calculation
Don't open-code DIV_ROUND_UP() kernel macro.
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
| -rw-r--r-- | drivers/i2c/busses/i2c-imx.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index b444fbf1a262..149e2898cd2f 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -537,7 +537,7 @@ static void i2c_imx_set_clk(struct imx_i2c_struct *i2c_imx, i2c_imx->cur_clk = i2c_clk_rate; - div = (i2c_clk_rate + i2c_imx->bitrate - 1) / i2c_imx->bitrate; + div = DIV_ROUND_UP(i2c_clk_rate, i2c_imx->bitrate); if (div < i2c_clk_div[0].div) i = 0; else if (div > i2c_clk_div[i2c_imx->hwdata->ndivs - 1].div) @@ -555,8 +555,8 @@ static void i2c_imx_set_clk(struct imx_i2c_struct *i2c_imx, * This delay is used in I2C bus disable function * to fix chip hardware bug. */ - i2c_imx->disable_delay = (500000U * i2c_clk_div[i].div - + (i2c_clk_rate / 2) - 1) / (i2c_clk_rate / 2); + i2c_imx->disable_delay = DIV_ROUND_UP(500000U * i2c_clk_div[i].div, + i2c_clk_rate / 2); #ifdef CONFIG_I2C_DEBUG_BUS dev_dbg(&i2c_imx->adapter.dev, "I2C_CLK=%d, REQ DIV=%d\n", |