On 03/03/16 12:51, Sudip Mukherjee wrote:
> We are getting build failure with tilepro allmodconfig with the error:
>
> drivers/iio/adc/fsl-imx25-gcq.c:236:4: note: in expansion of macro 'do_div'
> do_div(priv->channel_vref_mv[reg], 1000);
> ^
>
> include/asm-generic/div64.h:198:17: note: expected 'uint64_t *
> {aka long long unsigned int *}' but argument is of type 'u32 *
> {aka unsigned int *}'
>
> Create a temporary variable of type u64 and use that in do_div.
>
> Signed-off-by: Sudip Mukherjee <sudip.mukherjee@xxxxxxxxxxxxxxx>
Markus, can you take a quick look at this.
> ---
>
> tilepro allmodconfig build log is at:
> https://travis-ci.org/sudipm-mukherjee/parport/jobs/113325889
>
> drivers/iio/adc/fsl-imx25-gcq.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iio/adc/fsl-imx25-gcq.c b/drivers/iio/adc/fsl-imx25-gcq.c
> index 2fd1927..e0636d4 100644
> --- a/drivers/iio/adc/fsl-imx25-gcq.c
> +++ b/drivers/iio/adc/fsl-imx25-gcq.c
> @@ -174,6 +174,7 @@ static int mx25_gcq_setup_cfgs(struct platform_device *pdev,
> struct device *dev = &pdev->dev;
> unsigned int refp_used[4] = {};
> int ret, i;
> + u64 temp;
>
> /*
> * Setup all configurations registers with a default conversion
> @@ -233,7 +234,9 @@ static int mx25_gcq_setup_cfgs(struct platform_device *pdev,
> priv->channel_vref_mv[reg] =
> regulator_get_voltage(priv->vref[refp]);
> /* Conversion from uV to mV */
> - do_div(priv->channel_vref_mv[reg], 1000);
> + temp = priv->channel_vref_mv[reg];
> + do_div(temp, 1000);
> + priv->channel_vref_mv[reg] = temp;
> break;
> case MX25_ADC_REFP_INT:
> priv->channel_vref_mv[reg] = 2500;
>
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