[U-Boot] [PATCH] video: ipu: Fix build with hard-float ARM toolchain

Guillaume GARDET
2016-05-18T12:19:43Z

Build with hard-float ARM toolchain was broken by commit 3cb4f25c:
'video: ipu: avoid overflow issue'.
To fix it, we use do_div function.

Build tested for mx6qsabrelite_defconfig.

Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr>
Cc: Peng Fan <van.freenix@gmail.com>
Cc: Sandor Yu <sandor.yu@nxp.com>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Tom Rini <trini@konsulko.com>

---
drivers/video/ipu_common.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c
index 36d4b23..e319c82 100644
--- a/drivers/video/ipu_common.c
+++ b/drivers/video/ipu_common.c
@@ -352,7 +352,8 @@ 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;
}
--
1.8.4.5