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SubjectRe: [PATCH v2 1/3] omap2: Change clk dev id for rng to omap3-rom-rng
Date
On Friday 20 September 2013 18:23:43 Tony Lindgren wrote:
> * Pali Rohár <pali.rohar@gmail.com> [130920 06:33]:
> > Name omap_rng is already used by omap_rng driver which is
> > for omap2 and omap4. For omap3 HS devices there is new
> > driver omap3-rom-rng which needs that clk. And because
> > there cannot be two drivers with same name, rename omap3
> > clk dev id.
> >
> > Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
> > ---
> >
> > arch/arm/mach-omap2/cclock3xxx_data.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/mach-omap2/cclock3xxx_data.c
> > b/arch/arm/mach-omap2/cclock3xxx_data.c index
> > 334b767..5059338 100644
> > --- a/arch/arm/mach-omap2/cclock3xxx_data.c
> > +++ b/arch/arm/mach-omap2/cclock3xxx_data.c
> > @@ -3274,7 +3274,7 @@ static struct omap_clk omap36xx_clks[]
> > = {
> >
> > */
> >
> > static struct omap_clk omap34xx_omap36xx_clks[] = {
> >
> > CLK(NULL, "aes1_ick", &aes1_ick),
> >
> > - CLK("omap_rng", "ick", &rng_ick),
> > + CLK("omap3-rom-rng", "ick", &rng_ick),
> >
> > CLK(NULL, "sha11_ick", &sha11_ick),
> > CLK(NULL, "des1_ick", &des1_ick),
> > CLK(NULL, "cam_mclk", &cam_mclk),
>
> Hmm are you sure the omap_rng is not available on
> any of the omap3 GP versions? If so, the omap_rng
> alias should be kept as well.
>
> Regards,
>
> Tony

I really do not know, but driver char/hw_random/omap-rng.c
support only omap2 and omap4 platforms. So "omap_rng" dev id for
omap3 is not used.

In email [1] you suggested to use clk_get instead clk_get_sys. If
I understand correctly clk_get calling clk_get_sys with driver
name. So dev in in CLK macro must be same as driver name. And
because in cclock3xxx_data.c is dev id "omap_rng" and there is
already driver with name "omap_rng", I need to rename dev in
cclock3xxx_data.c to get new omap3-rom-rng driver working.

Or if you know better way how to do it, let me know.

[1] - https://lkml.org/lkml/2013/4/1/278

--
Pali Rohár
pali.rohar@gmail.com
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