From: Peng Fan <van.freenix@gmail.com>
Date: Thu, 28 Apr 2016 02:07:53 +0000 (+0800)
Subject: video: ipu_common: fix build error
X-Git-Tag: v2016.07-rc1~204^2~11
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=c510f2e436008e55a50b063f2180cb1e63984224;p=oweals%2Fu-boot.git

video: ipu_common: fix build error

Some toolchains fail to build
"clk->rate = (u64)(clk->parent->rate * 16) / div;"
And the cast usage is wrong.

Use the following code to fix the issue,
"
  do_div(parent_rate, div);
  clk->rate = parent_rate;
"

Reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
---

diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c
index 36d4b23bfe..5676a0f083 100644
--- a/drivers/video/ipu_common.c
+++ b/drivers/video/ipu_common.c
@@ -352,7 +352,9 @@ static int ipu_pixel_clk_set_rate(struct clk *clk, unsigned long rate)
 	 */
 	__raw_writel((div / 16) << 16, DI_BS_CLKGEN1(clk->id));
 
-	clk->rate = (u64)(clk->parent->rate * 16) / div;
+	do_div(parent_rate, div);
+
+	clk->rate = parent_rate;
 
 	return 0;
 }