The driver is casting from one __iomem pointer to another. Make sure to include
__iomem in the cast, otherwise sparse will complain with the following warning:
drivers/staging/iio/adc/spear_adc.c:321:18: warning: cast removes address space of expression
drivers/staging/iio/adc/spear_adc.c:320:33: warning: incorrect type in assignment (different address spaces)
drivers/staging/iio/adc/spear_adc.c:320:33: expected struct adc_regs_spear3xx [noderef] <asn:2>*adc_base_spear3xx
drivers/staging/iio/adc/spear_adc.c:320:33: got struct adc_regs_spear3xx *<noident>
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Cc: Stefan Roese <sr@xxxxxxx>
---
New in v2
---
drivers/staging/iio/adc/spear_adc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c
index fc99598..e6555b6 100644
--- a/drivers/staging/iio/adc/spear_adc.c
+++ b/drivers/staging/iio/adc/spear_adc.c
@@ -318,7 +318,7 @@ static int spear_adc_probe(struct platform_device *pdev)
return -ENOMEM;
}
info->adc_base_spear3xx =
- (struct adc_regs_spear3xx *)info->adc_base_spear6xx;
+ (struct adc_regs_spear3xx __iomem *)info->adc_base_spear6xx;
info->clk = clk_get(dev, NULL);
if (IS_ERR(info->clk)) {
--
1.8.0
--
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