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[3/4] staging: sm750fb: correctly define SM750LE_REVISION_ID

Message ID 1425817886-14387-3-git-send-email-sudipm.mukherjee@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sudip Mukherjee March 8, 2015, 12:31 p.m. UTC
check if it is already defined before defining SM750LE_REVISION_ID
again and at the same time mention correct data type.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
---
 drivers/staging/sm750fb/ddk750_chip.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Comments

Giedrius Statkevi?ius March 8, 2015, 12:59 p.m. UTC | #1
On 2015.03.08 14:31, Sudip Mukherjee wrote:
> check if it is already defined before defining SM750LE_REVISION_ID
> again and at the same time mention correct data type.
> 
> Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
> ---
>  drivers/staging/sm750fb/ddk750_chip.h | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/sm750fb/ddk750_chip.h b/drivers/staging/sm750fb/ddk750_chip.h
> index 1c78875..e7d27e8 100644
> --- a/drivers/staging/sm750fb/ddk750_chip.h
> +++ b/drivers/staging/sm750fb/ddk750_chip.h
> @@ -1,7 +1,9 @@
>  #ifndef DDK750_CHIP_H__
>  #define DDK750_CHIP_H__
>  #define DEFAULT_INPUT_CLOCK 14318181 /* Default reference clock */
> -#define SM750LE_REVISION_ID (char)0xfe
> +#ifndef SM750LE_REVISION_ID
> +#define SM750LE_REVISION_ID ((unsigned char)0xfe)
> +#endif

Do you need these parantheses? Also, you can now then fix up this line
too to avoid a redundant cast in the same patch:
sm750_hw.c: if(share->revid == (unsigned char)SM750LE_REVISION_ID){
Sudip Mukherjee March 8, 2015, 5:31 p.m. UTC | #2
On Sun, Mar 08, 2015 at 02:59:03PM +0200, Giedrius Statkevi?ius wrote:
> On 2015.03.08 14:31, Sudip Mukherjee wrote:
> > -#define SM750LE_REVISION_ID (char)0xfe
> > +#ifndef SM750LE_REVISION_ID
> > +#define SM750LE_REVISION_ID ((unsigned char)0xfe)
> > +#endif
> 
> Do you need these parantheses? Also, you can now then fix up this line
> too to avoid a redundant cast in the same patch:
> sm750_hw.c: if(share->revid == (unsigned char)SM750LE_REVISION_ID){
good idea, thanks.
that extra parentheses is for checkpatch warning of complex macro value.

i will better send a v2 of the whole series after checking that resource_size_t.

regards
sudip
> 
> 
> -- 
> Thanks,
> Giedrius
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diff mbox

Patch

diff --git a/drivers/staging/sm750fb/ddk750_chip.h b/drivers/staging/sm750fb/ddk750_chip.h
index 1c78875..e7d27e8 100644
--- a/drivers/staging/sm750fb/ddk750_chip.h
+++ b/drivers/staging/sm750fb/ddk750_chip.h
@@ -1,7 +1,9 @@ 
 #ifndef DDK750_CHIP_H__
 #define DDK750_CHIP_H__
 #define DEFAULT_INPUT_CLOCK 14318181 /* Default reference clock */
-#define SM750LE_REVISION_ID (char)0xfe
+#ifndef SM750LE_REVISION_ID
+#define SM750LE_REVISION_ID ((unsigned char)0xfe)
+#endif
 
 /* This is all the chips recognized by this library */
 typedef enum _logical_chip_type_t