From 5728d95f2458887ae3d95547c04352bba5080ad6 Mon Sep 17 00:00:00 2001 From: Sifan Naeem Date: Thu, 10 Sep 2015 15:50:03 +0100 Subject: [PATCH] i2c: img-scb: use DIV_ROUND_UP to round divisor values Using % can be slow depending on the architecture. Using DIV_ROUND_UP is nicer and more efficient way to do it. Fixes: commit 27bce457d588 ("i2c: img-scb: Add Imagination Technologies I2C SCB driver") Signed-off-by: Sifan Naeem Acked-by: James Hogan Reviewed-by: James Hartley Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-img-scb.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-img-scb.c b/drivers/i2c/busses/i2c-img-scb.c index 0368d91b6805..b4f59e1a5cac 100644 --- a/drivers/i2c/busses/i2c-img-scb.c +++ b/drivers/i2c/busses/i2c-img-scb.c @@ -1179,9 +1179,7 @@ static int img_i2c_init(struct img_i2c *i2c) int_bitrate++; /* Setup TCKH value */ - tckh = timing.tckh / clk_period; - if (timing.tckh % clk_period) - tckh++; + tckh = DIV_ROUND_UP(timing.tckh, clk_period); if (tckh > 0) data = tckh - 1; @@ -1201,9 +1199,7 @@ static int img_i2c_init(struct img_i2c *i2c) img_i2c_writel(i2c, SCB_TIME_TCKL_REG, data); /* Setup TSDH value */ - tsdh = timing.tsdh / clk_period; - if (timing.tsdh % clk_period) - tsdh++; + tsdh = DIV_ROUND_UP(timing.tsdh, clk_period); if (tsdh > 1) data = tsdh - 1; -- 2.39.5