linux-kernel - Re: [PATCH v2 3/4] staging: sm750fb: correctly define SM750LE_REVISION

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Message-ID: <20150309084101.GB9059@sudip-PC>
Date:	Mon, 9 Mar 2015 14:11:01 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	"Lad, Prabhakar" <prabhakar.csengg@...il.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	LFBDEV <linux-fbdev@...r.kernel.org>,
	OSUOSL Drivers <devel@...verdev.osuosl.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/4] staging: sm750fb: correctly define
 SM750LE_REVISION_ID

On Mon, Mar 09, 2015 at 07:47:40AM +0000, Lad, Prabhakar wrote:
> On Mon, Mar 9, 2015 at 7:35 AM, Sudip Mukherjee
> <sudipm.mukherjee@...il.com> 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@...torindia.org>
> > ---
> >
> > v2: removed the redundant cast in sm750_hw.c
> >
> >  drivers/staging/sm750fb/ddk750_chip.h | 4 +++-
> >  drivers/staging/sm750fb/sm750_hw.c    | 2 +-
> >  2 files changed, 4 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/staging/sm750fb/ddk750_chip.h b/drivers/staging/sm750fb/ddk750_chip.h
> > index 1c78875..d761b72 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)
> 
> BTW who is defining this somewhere else ?
it is defined in ddk750_chip.h which is again being used by ddk750_chip.c .


regards
sudip

> 
> Cheers,
> --Prabhakar Lad
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