[alsa-devel] [PATCH 09/11] ARM: imx6q: add ssi1 clk_lookup

[Richard Zhao]

On Fri, Apr 27, 2012 at 10:04:12AM +0200, Sascha Hauer wrote:
> On Fri, Apr 27, 2012 at 03:03:03PM +0800, Richard Zhao wrote:
> > It's used by audio drivers.
> > 
> > Signed-off-by: Richard Zhao <richard.zhao at freescale.com>
> > ---
> >  arch/arm/mach-imx/clk-imx6q.c |    1 +
> >  1 files changed, 1 insertions(+), 0 deletions(-)
> > 
> > diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
> > index f40a35d..9a03dcc 100644
> > --- a/arch/arm/mach-imx/clk-imx6q.c
> > +++ b/arch/arm/mach-imx/clk-imx6q.c
> > @@ -418,6 +418,7 @@ int __init mx6q_clocks_init(void)
> >  	clk_register_clkdev(clk[sdma], NULL, "20ec000.sdma");
> >  	clk_register_clkdev(clk[dummy], NULL, "20bc000.wdog");
> >  	clk_register_clkdev(clk[dummy], NULL, "20c0000.wdog");
> > +	clk_register_clkdev(clk[ssi1], NULL, "2028000.ssi");
> 
> The ssi clock needs a general cleanup on all i.MX just like I cleaned up
> the other units. The SSI unit has at least a register clock and a baud
> clock. What the driver requests and enables is the register clock.
> 
> The baud clock is currently unused and is needed only for master mode
> (which is not implemented in the ssi driver)
Are you sure for that? If I don't enable clk[ssi1], the ssi will not
work.

> 
> So where we want to come to is:
> 
> 	clk_register_clkdev(clk[ipg], "ipg", "2028000.ssi");
ssi don't have ipg gate. We can let it always on for imx6q.

Thanks
Richard
> 	clk_register_clkdev(clk[ssi1], "baud", "2028000.ssi");
> 
> Sascha
> 
> 
> -- 
> Pengutronix e.K.                           |                             |
> Industrial Linux Solutions                 | http://www.pengutronix.de/  |
> Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
> Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |
>