From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Subject: Re: [PATCH V5 3/6] OMAPDSS: DSS: Cleanup cpu_is_xxxx checks
Date: Tue, 21 Aug 2012 14:20:06 +0300
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To: "Mahapatra, Chandrabhanu" <cmahapatra@ti.com>
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On Tue, 2012-08-21 at 16:36 +0530, Mahapatra, Chandrabhanu wrote:
> On Tue, Aug 21, 2012 at 4:05 PM, Tomi Valkeinen <tomi.valkeinen@ti.com> w=
rote:
> > On Mon, 2012-08-20 at 18:53 +0530, Chandrabhanu Mahapatra wrote:
> >> All the cpu_is checks have been moved to dss_init_features function pr=
oviding a
> >> much more generic and cleaner interface. The OMAP version and revision=
 specific
> >> initializations in various functions are cleaned and the necessary dat=
a are
> >> moved to dss_features structure which is local to dss.c.
> >>
> >> Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
> >> ---
> >>  drivers/video/omap2/dss/dss.c |  117 ++++++++++++++++++++++++++------=
---------
> >>  1 file changed, 76 insertions(+), 41 deletions(-)
> >>
> >> diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/d=
ss.c
> >> index 10566ae..f6d3d0a 100644
> >> --- a/drivers/video/omap2/dss/dss.c
> >> +++ b/drivers/video/omap2/dss/dss.c
> >> @@ -31,6 +31,7 @@
> >>  #include <linux/clk.h>
> >>  #include <linux/platform_device.h>
> >>  #include <linux/pm_runtime.h>
> >> +#include <linux/gfp.h>
> >>
> >>  #include <video/omapdss.h>
> >>
> >> @@ -65,6 +66,12 @@ struct dss_reg {
> >>  static int dss_runtime_get(void);
> >>  static void dss_runtime_put(void);
> >>
> >> +struct dss_features {
> >> +     u16 fck_div_max;
> >> +     int dss_fck_multiplier;
> >> +     char *clk_name;
> >
> > const char *
> >
> >  Tomi
> >
>=20
> All the values are const. So we have a const pointer dss.feat to hold
> this structure. Is a separate
> const char *clk_name required?

Yes, the values are const, so the pointer itself is const. However, the
chars where the pointer points are not const. So:

feat.clk_name =3D 1234; // this is rejected by the compiler
feat.clk_name[0] =3D 0; // this would be accepted

 Tomi




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