[PATCH 1/8] arm: mxs: make get_hclk result useable for upcoming set_hclk

[Wolfram Sang]

To avoid getting a different divider due to rounding errors when using
set_hclk later, use DIV_ROUND_UP for the returned value.

Signed-off-by: Wolfram Sang <w.sang at pengutronix.de>
---
 arch/arm/mach-mxs/speed-imx23.c |    5 +++--
 arch/arm/mach-mxs/speed-imx28.c |    5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-mxs/speed-imx23.c b/arch/arm/mach-mxs/speed-imx23.c
index b10c786..c9ca7ac 100644
--- a/arch/arm/mach-mxs/speed-imx23.c
+++ b/arch/arm/mach-mxs/speed-imx23.c
@@ -184,9 +184,10 @@ unsigned imx_get_hclk(void)
 
 	if (readl(IMX_CCM_BASE + HW_CLKCTRL_HBUS) & 0x20) {
 		rate *= readl(IMX_CCM_BASE + HW_CLKCTRL_HBUS) & 0x1f;
-		rate >>= 5U; /* / 32 */
+		rate = DIV_ROUND_UP(rate, 32);
 	} else
-		rate /= readl(IMX_CCM_BASE + HW_CLKCTRL_HBUS) & 0x1f;
+		rate = DIV_ROUND_UP(rate,
+			readl(IMX_CCM_BASE + HW_CLKCTRL_HBUS) & 0x1f);
 	return rate * 1000;
 }
 
diff --git a/arch/arm/mach-mxs/speed-imx28.c b/arch/arm/mach-mxs/speed-imx28.c
index 67cdbdf..4f4db1b 100644
--- a/arch/arm/mach-mxs/speed-imx28.c
+++ b/arch/arm/mach-mxs/speed-imx28.c
@@ -251,9 +251,10 @@ unsigned imx_get_hclk(void)
 
 	if (readl(IMX_CCM_BASE + HW_CLKCTRL_HBUS) & 0x20) {
 		rate *= readl(IMX_CCM_BASE + HW_CLKCTRL_HBUS) & 0x1f;
-		rate /= 32;
+		rate = DIV_ROUND_UP(rate, 32);
 	} else
-		rate /= readl(IMX_CCM_BASE + HW_CLKCTRL_HBUS) & 0x1f;
+		rate = DIV_ROUND_UP(rate,
+			readl(IMX_CCM_BASE + HW_CLKCTRL_HBUS) & 0x1f);
 	return rate * 1000;
 }
 
-- 
1.7.10