* [PATCH] pinctrl: artpec6: fix __iomem on reg in set
@ 2019-12-18 10:16 Ben Dooks (Codethink)
2019-12-18 16:26 ` Jesper Nilsson
0 siblings, 1 reply; 6+ messages in thread
From: Ben Dooks (Codethink) @ 2019-12-18 10:16 UTC (permalink / raw)
To: ben.dooks
Cc: Jesper Nilsson, Lars Persson, Linus Walleij, linux-arm-kernel,
linux-gpio, linux-kernel
The artpec6_pconf_set should have marked reg as __iomem,
which ends up making sparse complain about address
space conversions. Add the __iomem to silence the
following warnings:
drivers/pinctrl/pinctrl-artpec6.c:814:13: warning: incorrect type in assignment (different address spaces)
drivers/pinctrl/pinctrl-artpec6.c:814:13: expected unsigned int *reg
drivers/pinctrl/pinctrl-artpec6.c:814:13: got void [noderef] <asn:2> *
drivers/pinctrl/pinctrl-artpec6.c:825:34: warning: incorrect type in argument 1 (different address spaces)
drivers/pinctrl/pinctrl-artpec6.c:825:34: expected void const volatile [noderef] <asn:2> *addr
drivers/pinctrl/pinctrl-artpec6.c:825:34: got unsigned int *reg
drivers/pinctrl/pinctrl-artpec6.c:827:25: warning: incorrect type in argument 2 (different address spaces)
drivers/pinctrl/pinctrl-artpec6.c:827:25: expected void volatile [noderef] <asn:2> *addr
drivers/pinctrl/pinctrl-artpec6.c:827:25: got unsigned int *reg
drivers/pinctrl/pinctrl-artpec6.c:837:34: warning: incorrect type in argument 1 (different address spaces)
drivers/pinctrl/pinctrl-artpec6.c:837:34: expected void const volatile [noderef] <asn:2> *addr
drivers/pinctrl/pinctrl-artpec6.c:837:34: got unsigned int *reg
drivers/pinctrl/pinctrl-artpec6.c:840:25: warning: incorrect type in argument 2 (different address spaces)
drivers/pinctrl/pinctrl-artpec6.c:840:25: expected void volatile [noderef] <asn:2> *addr
drivers/pinctrl/pinctrl-artpec6.c:840:25: got unsigned int *reg
drivers/pinctrl/pinctrl-artpec6.c:850:34: warning: incorrect type in argument 1 (different address spaces)
drivers/pinctrl/pinctrl-artpec6.c:850:34: expected void const volatile [noderef] <asn:2> *addr
drivers/pinctrl/pinctrl-artpec6.c:850:34: got unsigned int *reg
drivers/pinctrl/pinctrl-artpec6.c:853:25: warning: incorrect type in argument 2 (different address spaces)
drivers/pinctrl/pinctrl-artpec6.c:853:25: expected void volatile [noderef] <asn:2> *addr
drivers/pinctrl/pinctrl-artpec6.c:853:25: got unsigned int *reg
drivers/pinctrl/pinctrl-artpec6.c:864:34: warning: incorrect type in argument 1 (different address spaces)
drivers/pinctrl/pinctrl-artpec6.c:864:34: expected void const volatile [noderef] <asn:2> *addr
drivers/pinctrl/pinctrl-artpec6.c:864:34: got unsigned int *reg
drivers/pinctrl/pinctrl-artpec6.c:867:25: warning: incorrect type in argument 2 (different address spaces)
drivers/pinctrl/pinctrl-artpec6.c:867:25: expected void volatile [noderef] <asn:2> *addr
drivers/pinctrl/pinctrl-artpec6.c:867:25: got unsigned int *reg
Signed-off-by: Ben Dooks (Codethink) <ben.dooks@codethink.co.uk>
---
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Lars Persson <lars.persson@axis.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-arm-kernel@axis.com
Cc: linux-gpio@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/pinctrl/pinctrl-artpec6.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl-artpec6.c b/drivers/pinctrl/pinctrl-artpec6.c
index 986e04ac6b5b..439a997b6bdb 100644
--- a/drivers/pinctrl/pinctrl-artpec6.c
+++ b/drivers/pinctrl/pinctrl-artpec6.c
@@ -798,7 +798,7 @@ static int artpec6_pconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
enum pin_config_param param;
unsigned int arg;
unsigned int regval;
- unsigned int *reg;
+ unsigned int __iomem *reg;
int i;
/* Check for valid pin */
--
2.24.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] pinctrl: artpec6: fix __iomem on reg in set
2019-12-18 10:16 [PATCH] pinctrl: artpec6: fix __iomem on reg in set Ben Dooks (Codethink)
@ 2019-12-18 16:26 ` Jesper Nilsson
2019-12-18 17:32 ` Ben Dooks
0 siblings, 1 reply; 6+ messages in thread
From: Jesper Nilsson @ 2019-12-18 16:26 UTC (permalink / raw)
To: Ben Dooks (Codethink)
Cc: Jesper Nilsson, Lars Persson, Linus Walleij, linux-arm-kernel,
linux-gpio, linux-kernel
On Wed, Dec 18, 2019 at 11:16:02AM +0100, Ben Dooks (Codethink) wrote:
> The artpec6_pconf_set should have marked reg as __iomem,
> which ends up making sparse complain about address
> space conversions. Add the __iomem to silence the
> following warnings:
>
> drivers/pinctrl/pinctrl-artpec6.c:814:13: warning: incorrect type in assignment (different address spaces)
> drivers/pinctrl/pinctrl-artpec6.c:814:13: expected unsigned int *reg
> drivers/pinctrl/pinctrl-artpec6.c:814:13: got void [noderef] <asn:2> *
> drivers/pinctrl/pinctrl-artpec6.c:825:34: warning: incorrect type in argument 1 (different address spaces)
> drivers/pinctrl/pinctrl-artpec6.c:825:34: expected void const volatile [noderef] <asn:2> *addr
> drivers/pinctrl/pinctrl-artpec6.c:825:34: got unsigned int *reg
> drivers/pinctrl/pinctrl-artpec6.c:827:25: warning: incorrect type in argument 2 (different address spaces)
> drivers/pinctrl/pinctrl-artpec6.c:827:25: expected void volatile [noderef] <asn:2> *addr
> drivers/pinctrl/pinctrl-artpec6.c:827:25: got unsigned int *reg
> drivers/pinctrl/pinctrl-artpec6.c:837:34: warning: incorrect type in argument 1 (different address spaces)
> drivers/pinctrl/pinctrl-artpec6.c:837:34: expected void const volatile [noderef] <asn:2> *addr
> drivers/pinctrl/pinctrl-artpec6.c:837:34: got unsigned int *reg
> drivers/pinctrl/pinctrl-artpec6.c:840:25: warning: incorrect type in argument 2 (different address spaces)
> drivers/pinctrl/pinctrl-artpec6.c:840:25: expected void volatile [noderef] <asn:2> *addr
> drivers/pinctrl/pinctrl-artpec6.c:840:25: got unsigned int *reg
> drivers/pinctrl/pinctrl-artpec6.c:850:34: warning: incorrect type in argument 1 (different address spaces)
> drivers/pinctrl/pinctrl-artpec6.c:850:34: expected void const volatile [noderef] <asn:2> *addr
> drivers/pinctrl/pinctrl-artpec6.c:850:34: got unsigned int *reg
> drivers/pinctrl/pinctrl-artpec6.c:853:25: warning: incorrect type in argument 2 (different address spaces)
> drivers/pinctrl/pinctrl-artpec6.c:853:25: expected void volatile [noderef] <asn:2> *addr
> drivers/pinctrl/pinctrl-artpec6.c:853:25: got unsigned int *reg
> drivers/pinctrl/pinctrl-artpec6.c:864:34: warning: incorrect type in argument 1 (different address spaces)
> drivers/pinctrl/pinctrl-artpec6.c:864:34: expected void const volatile [noderef] <asn:2> *addr
> drivers/pinctrl/pinctrl-artpec6.c:864:34: got unsigned int *reg
> drivers/pinctrl/pinctrl-artpec6.c:867:25: warning: incorrect type in argument 2 (different address spaces)
> drivers/pinctrl/pinctrl-artpec6.c:867:25: expected void volatile [noderef] <asn:2> *addr
> drivers/pinctrl/pinctrl-artpec6.c:867:25: got unsigned int *reg
>
> Signed-off-by: Ben Dooks (Codethink) <ben.dooks@codethink.co.uk>
> ---
> Cc: Lars Persson <lars.persson@axis.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: linux-arm-kernel@axis.com
> Cc: linux-gpio@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> ---
> drivers/pinctrl/pinctrl-artpec6.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pinctrl/pinctrl-artpec6.c b/drivers/pinctrl/pinctrl-artpec6.c
> index 986e04ac6b5b..439a997b6bdb 100644
> --- a/drivers/pinctrl/pinctrl-artpec6.c
> +++ b/drivers/pinctrl/pinctrl-artpec6.c
> @@ -798,7 +798,7 @@ static int artpec6_pconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
> enum pin_config_param param;
> unsigned int arg;
> unsigned int regval;
> - unsigned int *reg;
> + unsigned int __iomem *reg;
void __iomem *reg;
We're using as an argument to readl()?
> int i;
>
> /* Check for valid pin */
> --
> 2.24.0
>
/^JN - Jesper Nilsson
--
Jesper Nilsson -- jesper.nilsson@axis.com
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] pinctrl: artpec6: fix __iomem on reg in set
2019-12-18 16:26 ` Jesper Nilsson
@ 2019-12-18 17:32 ` Ben Dooks
2020-01-07 9:39 ` Linus Walleij
0 siblings, 1 reply; 6+ messages in thread
From: Ben Dooks @ 2019-12-18 17:32 UTC (permalink / raw)
To: Jesper Nilsson
Cc: Jesper Nilsson, Lars Persson, Linus Walleij, linux-arm-kernel,
linux-gpio, linux-kernel
On 18/12/2019 16:26, Jesper Nilsson wrote:
> On Wed, Dec 18, 2019 at 11:16:02AM +0100, Ben Dooks (Codethink) wrote:
>> The artpec6_pconf_set should have marked reg as __iomem,
>> which ends up making sparse complain about address
>> space conversions. Add the __iomem to silence the
>> following warnings:
>>
>> drivers/pinctrl/pinctrl-artpec6.c:814:13: warning: incorrect type in assignment (different address spaces)
>> drivers/pinctrl/pinctrl-artpec6.c:814:13: expected unsigned int *reg
>> drivers/pinctrl/pinctrl-artpec6.c:814:13: got void [noderef] <asn:2> *
>> drivers/pinctrl/pinctrl-artpec6.c:825:34: warning: incorrect type in argument 1 (different address spaces)
>> drivers/pinctrl/pinctrl-artpec6.c:825:34: expected void const volatile [noderef] <asn:2> *addr
>> drivers/pinctrl/pinctrl-artpec6.c:825:34: got unsigned int *reg
>> drivers/pinctrl/pinctrl-artpec6.c:827:25: warning: incorrect type in argument 2 (different address spaces)
>> drivers/pinctrl/pinctrl-artpec6.c:827:25: expected void volatile [noderef] <asn:2> *addr
>> drivers/pinctrl/pinctrl-artpec6.c:827:25: got unsigned int *reg
>> drivers/pinctrl/pinctrl-artpec6.c:837:34: warning: incorrect type in argument 1 (different address spaces)
>> drivers/pinctrl/pinctrl-artpec6.c:837:34: expected void const volatile [noderef] <asn:2> *addr
>> drivers/pinctrl/pinctrl-artpec6.c:837:34: got unsigned int *reg
>> drivers/pinctrl/pinctrl-artpec6.c:840:25: warning: incorrect type in argument 2 (different address spaces)
>> drivers/pinctrl/pinctrl-artpec6.c:840:25: expected void volatile [noderef] <asn:2> *addr
>> drivers/pinctrl/pinctrl-artpec6.c:840:25: got unsigned int *reg
>> drivers/pinctrl/pinctrl-artpec6.c:850:34: warning: incorrect type in argument 1 (different address spaces)
>> drivers/pinctrl/pinctrl-artpec6.c:850:34: expected void const volatile [noderef] <asn:2> *addr
>> drivers/pinctrl/pinctrl-artpec6.c:850:34: got unsigned int *reg
>> drivers/pinctrl/pinctrl-artpec6.c:853:25: warning: incorrect type in argument 2 (different address spaces)
>> drivers/pinctrl/pinctrl-artpec6.c:853:25: expected void volatile [noderef] <asn:2> *addr
>> drivers/pinctrl/pinctrl-artpec6.c:853:25: got unsigned int *reg
>> drivers/pinctrl/pinctrl-artpec6.c:864:34: warning: incorrect type in argument 1 (different address spaces)
>> drivers/pinctrl/pinctrl-artpec6.c:864:34: expected void const volatile [noderef] <asn:2> *addr
>> drivers/pinctrl/pinctrl-artpec6.c:864:34: got unsigned int *reg
>> drivers/pinctrl/pinctrl-artpec6.c:867:25: warning: incorrect type in argument 2 (different address spaces)
>> drivers/pinctrl/pinctrl-artpec6.c:867:25: expected void volatile [noderef] <asn:2> *addr
>> drivers/pinctrl/pinctrl-artpec6.c:867:25: got unsigned int *reg
>>
>> Signed-off-by: Ben Dooks (Codethink) <ben.dooks@codethink.co.uk>
>> ---
>
>
>
>
>> Cc: Lars Persson <lars.persson@axis.com>
>> Cc: Linus Walleij <linus.walleij@linaro.org>
>> Cc: linux-arm-kernel@axis.com
>> Cc: linux-gpio@vger.kernel.org
>> Cc: linux-kernel@vger.kernel.org
>> ---
>> drivers/pinctrl/pinctrl-artpec6.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/pinctrl/pinctrl-artpec6.c b/drivers/pinctrl/pinctrl-artpec6.c
>> index 986e04ac6b5b..439a997b6bdb 100644
>> --- a/drivers/pinctrl/pinctrl-artpec6.c
>> +++ b/drivers/pinctrl/pinctrl-artpec6.c
>> @@ -798,7 +798,7 @@ static int artpec6_pconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
>> enum pin_config_param param;
>> unsigned int arg;
>> unsigned int regval;
>> - unsigned int *reg;
>> + unsigned int __iomem *reg;
>
> void __iomem *reg;
>
> We're using as an argument to readl()?
yes, readl() shoud take an __iomem attributed pointer.
>> int i;
>>
>> /* Check for valid pin */
>> --
>> 2.24.0
>>
>
> /^JN - Jesper Nilsson
>
--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius
https://www.codethink.co.uk/privacy.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] pinctrl: artpec6: fix __iomem on reg in set
2019-12-18 17:32 ` Ben Dooks
@ 2020-01-07 9:39 ` Linus Walleij
2020-01-07 11:18 ` Jesper Nilsson
0 siblings, 1 reply; 6+ messages in thread
From: Linus Walleij @ 2020-01-07 9:39 UTC (permalink / raw)
To: Ben Dooks
Cc: Jesper Nilsson, Jesper Nilsson, Lars Persson, linux-arm-kernel,
linux-gpio, linux-kernel
On Wed, Dec 18, 2019 at 6:32 PM Ben Dooks <ben.dooks@codethink.co.uk> wrote:
> On 18/12/2019 16:26, Jesper Nilsson wrote:
> > On Wed, Dec 18, 2019 at 11:16:02AM +0100, Ben Dooks (Codethink) wrote:
> >> - unsigned int *reg;
> >> + unsigned int __iomem *reg;
> >
> > void __iomem *reg;
> >
> > We're using as an argument to readl()?
>
> yes, readl() shoud take an __iomem attributed pointer.
Shall I change it to void as well when applying?
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] pinctrl: artpec6: fix __iomem on reg in set
2020-01-07 9:39 ` Linus Walleij
@ 2020-01-07 11:18 ` Jesper Nilsson
2020-01-07 12:52 ` Linus Walleij
0 siblings, 1 reply; 6+ messages in thread
From: Jesper Nilsson @ 2020-01-07 11:18 UTC (permalink / raw)
To: Linus Walleij
Cc: Ben Dooks, Jesper Nilsson, Lars Persson, linux-arm-kernel,
linux-gpio, linux-kernel
On Tue, Jan 07, 2020 at 10:39:34AM +0100, Linus Walleij wrote:
> On Wed, Dec 18, 2019 at 6:32 PM Ben Dooks <ben.dooks@codethink.co.uk> wrote:
> > On 18/12/2019 16:26, Jesper Nilsson wrote:
> > > On Wed, Dec 18, 2019 at 11:16:02AM +0100, Ben Dooks (Codethink) wrote:
>
> > >> - unsigned int *reg;
> > >> + unsigned int __iomem *reg;
> > >
> > > void __iomem *reg;
> > >
> > > We're using as an argument to readl()?
> >
> > yes, readl() shoud take an __iomem attributed pointer.
>
> Shall I change it to void as well when applying?
Please do, sorry that my comment wasn't clear above.
> Yours,
> Linus Walleij
/^JN - Jesper Nilsson
--
Jesper Nilsson -- jesper.nilsson@axis.com
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] pinctrl: artpec6: fix __iomem on reg in set
2020-01-07 11:18 ` Jesper Nilsson
@ 2020-01-07 12:52 ` Linus Walleij
0 siblings, 0 replies; 6+ messages in thread
From: Linus Walleij @ 2020-01-07 12:52 UTC (permalink / raw)
To: Jesper Nilsson
Cc: Ben Dooks, Jesper Nilsson, Lars Persson, linux-arm-kernel,
linux-gpio, linux-kernel
On Tue, Jan 7, 2020 at 12:18 PM Jesper Nilsson <jesper.nilsson@axis.com> wrote:
> On Tue, Jan 07, 2020 at 10:39:34AM +0100, Linus Walleij wrote:
> > On Wed, Dec 18, 2019 at 6:32 PM Ben Dooks <ben.dooks@codethink.co.uk> wrote:
> > > On 18/12/2019 16:26, Jesper Nilsson wrote:
> > > > On Wed, Dec 18, 2019 at 11:16:02AM +0100, Ben Dooks (Codethink) wrote:
> >
> > > >> - unsigned int *reg;
> > > >> + unsigned int __iomem *reg;
> > > >
> > > > void __iomem *reg;
> > > >
> > > > We're using as an argument to readl()?
> > >
> > > yes, readl() shoud take an __iomem attributed pointer.
> >
> > Shall I change it to void as well when applying?
>
> Please do, sorry that my comment wasn't clear above.
OK I did that and applied, let's see if it works :)
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 6+ messages in thread
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2019-12-18 10:16 [PATCH] pinctrl: artpec6: fix __iomem on reg in set Ben Dooks (Codethink)
2019-12-18 16:26 ` Jesper Nilsson
2019-12-18 17:32 ` Ben Dooks
2020-01-07 9:39 ` Linus Walleij
2020-01-07 11:18 ` Jesper Nilsson
2020-01-07 12:52 ` Linus Walleij
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