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SubjectRe: [PATCH linux-next] i2c-designware: use div_u64 to fix link
On Tue, Jul 02, 2013 at 11:46:54AM +0200, Vincent Stehlll wrote:
> 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

Looks good. I also tested it on our ARC based platform, no issues with
compilation or functionality. Thanks for pointing this out.

Reviewed-by: Christian Ruppert <christian.ruppert@abilis.com>

> 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
>
>
>

--
Christian Ruppert , <christian.ruppert@abilis.com>
/|
Tel: +41/(0)22 816 19-42 //| 3, Chemin du Pré-Fleuri
_// | bilis Systems CH-1228 Plan-les-Ouates
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