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Subject[PATCH linux-next] i2c-designware: use div_u64 to fix link
Date
This fixes the following link error:

drivers/built-in.o: In function `dw_i2c_probe':
of_iommu.c:(.text+0x18c8f0): undefined reference to `__aeabi_uldivmod'
make: *** [vmlinux] Error 1

Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Christian Ruppert <christian.ruppert@abilis.com>
Cc: Pierrick Hascoet <pierrick.hascoet@abilis.com>
---


Hi,

Linux next-20130702 link broke for ARM config multi_v7_defconfig. This is with
gcc 4.7.2 but I am not sure it matters much here.

This patch repairs the link.

It did not break anything for me on i.MX6 sabre sd, but it does'nt have a
designware i2c, so more reviewing/testing is welcome.

Best regards,

V.


drivers/i2c/busses/i2c-designware-platdrv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index def79b5..4c5fada 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -122,7 +122,8 @@ static int dw_i2c_probe(struct platform_device *pdev)

of_property_read_u32(pdev->dev.of_node,
"i2c-sda-hold-time-ns", &ht);
- dev->sda_hold_time = ((u64)ic_clk * ht + 500000) / 1000000;
+ dev->sda_hold_time = div_u64((u64)ic_clk * ht + 500000,
+ 1000000);
}

dev->functionality =
--
1.7.10.4


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