diff mbox

[RESEND] media: davinci: vpbe: fix build warning

Message ID 1350908271-11448-1-git-send-email-prabhakar.lad@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Prabhakar Oct. 22, 2012, 12:17 p.m. UTC
From: Lad, Prabhakar <prabhakar.lad@ti.com>

Warnings were generated because of the following commit changed data type for
address pointer

195bbca ARM: 7500/1: io: avoid writeback addressing modes for __raw_ accessors
add  __iomem annotation to fix following warnings

drivers/media/platform/davinci/vpbe_osd.c: In function ‘osd_read’:
drivers/media/platform/davinci/vpbe_osd.c:49:2: warning: passing
 argument 1 of ‘__raw_readl’ makes pointer from integer without a cast [enabled by default]
arch/arm/include/asm/io.h:104:19: note: expected ‘const volatile
 void *’ but argument is of type ‘long unsigned int’

Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
---
  Resending the patch since, it didn't reach the DLOS mailing list.

 drivers/media/platform/davinci/vpbe_osd.c |   16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

Comments

Laurent Pinchart Oct. 22, 2012, 12:23 p.m. UTC | #1
Hi Prabhakar,

On Monday 22 October 2012 17:47:51 Prabhakar Lad wrote:
> From: Lad, Prabhakar <prabhakar.lad@ti.com>
> 
> Warnings were generated because of the following commit changed data type
> for address pointer
> 
> 195bbca ARM: 7500/1: io: avoid writeback addressing modes for __raw_
> accessors add  __iomem annotation to fix following warnings
> 
> drivers/media/platform/davinci/vpbe_osd.c: In function ‘osd_read’:
> drivers/media/platform/davinci/vpbe_osd.c:49:2: warning: passing
>  argument 1 of ‘__raw_readl’ makes pointer from integer without a cast
> [enabled by default] arch/arm/include/asm/io.h:104:19: note: expected
> ‘const volatile
>  void *’ but argument is of type ‘long unsigned int’
> 
> Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
> Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
> ---
>   Resending the patch since, it didn't reach the DLOS mailing list.
> 
>  drivers/media/platform/davinci/vpbe_osd.c |   16 ++++++++--------
>  1 files changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/media/platform/davinci/vpbe_osd.c
> b/drivers/media/platform/davinci/vpbe_osd.c index bba299d..9ab9280 100644
> --- a/drivers/media/platform/davinci/vpbe_osd.c
> +++ b/drivers/media/platform/davinci/vpbe_osd.c
> @@ -46,14 +46,14 @@ static inline u32 osd_read(struct osd_state *sd, u32
> offset) {
>  	struct osd_state *osd = sd;
> 
> -	return readl(osd->osd_base + offset);
> +	return readl(IOMEM(osd->osd_base + offset));

A better fix, in my opinion, would be to change the osd->osd_base field to be 
a void __iomem * instead of long unsigned int.

>  }
> 
>  static inline u32 osd_write(struct osd_state *sd, u32 val, u32 offset)
>  {
>  	struct osd_state *osd = sd;
> 
> -	writel(val, osd->osd_base + offset);
> +	writel(val, IOMEM(osd->osd_base + offset));
> 
>  	return val;
>  }
> @@ -63,9 +63,9 @@ static inline u32 osd_set(struct osd_state *sd, u32 mask,
> u32 offset) struct osd_state *osd = sd;
> 
>  	u32 addr = osd->osd_base + offset;
> -	u32 val = readl(addr) | mask;
> +	u32 val = readl(IOMEM(addr)) | mask;
> 
> -	writel(val, addr);
> +	writel(val, IOMEM(addr));
> 
>  	return val;
>  }
> @@ -75,9 +75,9 @@ static inline u32 osd_clear(struct osd_state *sd, u32
> mask, u32 offset) struct osd_state *osd = sd;
> 
>  	u32 addr = osd->osd_base + offset;
> -	u32 val = readl(addr) & ~mask;
> +	u32 val = readl(IOMEM(addr)) & ~mask;
> 
> -	writel(val, addr);
> +	writel(val, IOMEM(addr));
> 
>  	return val;
>  }
> @@ -88,9 +88,9 @@ static inline u32 osd_modify(struct osd_state *sd, u32
> mask, u32 val, struct osd_state *osd = sd;
> 
>  	u32 addr = osd->osd_base + offset;
> -	u32 new_val = (readl(addr) & ~mask) | (val & mask);
> +	u32 new_val = (readl(IOMEM(addr)) & ~mask) | (val & mask);
> 
> -	writel(new_val, addr);
> +	writel(new_val, IOMEM(addr));
> 
>  	return new_val;
>  }
Prabhakar Oct. 23, 2012, 10:47 a.m. UTC | #2
Hi Laurent,

On Mon, Oct 22, 2012 at 5:53 PM, Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
> Hi Prabhakar,
>
> On Monday 22 October 2012 17:47:51 Prabhakar Lad wrote:
>> From: Lad, Prabhakar <prabhakar.lad@ti.com>
>>
>> Warnings were generated because of the following commit changed data type
>> for address pointer
>>
>> 195bbca ARM: 7500/1: io: avoid writeback addressing modes for __raw_
>> accessors add  __iomem annotation to fix following warnings
>>
>> drivers/media/platform/davinci/vpbe_osd.c: In function ‘osd_read’:
>> drivers/media/platform/davinci/vpbe_osd.c:49:2: warning: passing
>>  argument 1 of ‘__raw_readl’ makes pointer from integer without a cast
>> [enabled by default] arch/arm/include/asm/io.h:104:19: note: expected
>> ‘const volatile
>>  void *’ but argument is of type ‘long unsigned int’
>>
>> Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
>> Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
>> ---
>>   Resending the patch since, it didn't reach the DLOS mailing list.
>>
>>  drivers/media/platform/davinci/vpbe_osd.c |   16 ++++++++--------
>>  1 files changed, 8 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/media/platform/davinci/vpbe_osd.c
>> b/drivers/media/platform/davinci/vpbe_osd.c index bba299d..9ab9280 100644
>> --- a/drivers/media/platform/davinci/vpbe_osd.c
>> +++ b/drivers/media/platform/davinci/vpbe_osd.c
>> @@ -46,14 +46,14 @@ static inline u32 osd_read(struct osd_state *sd, u32
>> offset) {
>>       struct osd_state *osd = sd;
>>
>> -     return readl(osd->osd_base + offset);
>> +     return readl(IOMEM(osd->osd_base + offset));
>
> A better fix, in my opinion, would be to change the osd->osd_base field to be
> a void __iomem * instead of long unsigned int.
>
Ok I'll make it as void * and post a v2.

Regards,
--Prabhakar

>>  }
>>
>>  static inline u32 osd_write(struct osd_state *sd, u32 val, u32 offset)
>>  {
>>       struct osd_state *osd = sd;
>>
>> -     writel(val, osd->osd_base + offset);
>> +     writel(val, IOMEM(osd->osd_base + offset));
>>
>>       return val;
>>  }
>> @@ -63,9 +63,9 @@ static inline u32 osd_set(struct osd_state *sd, u32 mask,
>> u32 offset) struct osd_state *osd = sd;
>>
>>       u32 addr = osd->osd_base + offset;
>> -     u32 val = readl(addr) | mask;
>> +     u32 val = readl(IOMEM(addr)) | mask;
>>
>> -     writel(val, addr);
>> +     writel(val, IOMEM(addr));
>>
>>       return val;
>>  }
>> @@ -75,9 +75,9 @@ static inline u32 osd_clear(struct osd_state *sd, u32
>> mask, u32 offset) struct osd_state *osd = sd;
>>
>>       u32 addr = osd->osd_base + offset;
>> -     u32 val = readl(addr) & ~mask;
>> +     u32 val = readl(IOMEM(addr)) & ~mask;
>>
>> -     writel(val, addr);
>> +     writel(val, IOMEM(addr));
>>
>>       return val;
>>  }
>> @@ -88,9 +88,9 @@ static inline u32 osd_modify(struct osd_state *sd, u32
>> mask, u32 val, struct osd_state *osd = sd;
>>
>>       u32 addr = osd->osd_base + offset;
>> -     u32 new_val = (readl(addr) & ~mask) | (val & mask);
>> +     u32 new_val = (readl(IOMEM(addr)) & ~mask) | (val & mask);
>>
>> -     writel(new_val, addr);
>> +     writel(new_val, IOMEM(addr));
>>
>>       return new_val;
>>  }
> --
> Regards,
>
> Laurent Pinchart
>
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/drivers/media/platform/davinci/vpbe_osd.c b/drivers/media/platform/davinci/vpbe_osd.c
index bba299d..9ab9280 100644
--- a/drivers/media/platform/davinci/vpbe_osd.c
+++ b/drivers/media/platform/davinci/vpbe_osd.c
@@ -46,14 +46,14 @@  static inline u32 osd_read(struct osd_state *sd, u32 offset)
 {
 	struct osd_state *osd = sd;
 
-	return readl(osd->osd_base + offset);
+	return readl(IOMEM(osd->osd_base + offset));
 }
 
 static inline u32 osd_write(struct osd_state *sd, u32 val, u32 offset)
 {
 	struct osd_state *osd = sd;
 
-	writel(val, osd->osd_base + offset);
+	writel(val, IOMEM(osd->osd_base + offset));
 
 	return val;
 }
@@ -63,9 +63,9 @@  static inline u32 osd_set(struct osd_state *sd, u32 mask, u32 offset)
 	struct osd_state *osd = sd;
 
 	u32 addr = osd->osd_base + offset;
-	u32 val = readl(addr) | mask;
+	u32 val = readl(IOMEM(addr)) | mask;
 
-	writel(val, addr);
+	writel(val, IOMEM(addr));
 
 	return val;
 }
@@ -75,9 +75,9 @@  static inline u32 osd_clear(struct osd_state *sd, u32 mask, u32 offset)
 	struct osd_state *osd = sd;
 
 	u32 addr = osd->osd_base + offset;
-	u32 val = readl(addr) & ~mask;
+	u32 val = readl(IOMEM(addr)) & ~mask;
 
-	writel(val, addr);
+	writel(val, IOMEM(addr));
 
 	return val;
 }
@@ -88,9 +88,9 @@  static inline u32 osd_modify(struct osd_state *sd, u32 mask, u32 val,
 	struct osd_state *osd = sd;
 
 	u32 addr = osd->osd_base + offset;
-	u32 new_val = (readl(addr) & ~mask) | (val & mask);
+	u32 new_val = (readl(IOMEM(addr)) & ~mask) | (val & mask);
 
-	writel(new_val, addr);
+	writel(new_val, IOMEM(addr));
 
 	return new_val;
 }