On Mon, Apr 30, 2012 at 02:18:57PM +0200, Sascha Hauer wrote: > On Mon, Apr 30, 2012 at 10:01:46AM +0800, Richard Zhao wrote: > > > > > > > > > > clk_register_clkdev(clk[ipg], "ipg", "2028000.ssi"); > > > > ssi don't have ipg gate. We can let it always on for imx6q. > > > > > > Can you please ask your IC guys for clarification? > > > > > > For example on i.MX5 we have a ssi ipg clock and a ssi serial clock. > > > Both can be gated with two individual gate bits. > > > > > > The i.MX6 datasheet (and also several other i.MX datasheets) is quite > > > nebulous. The i.MX6 has only one gate bit for each SSI unit, but > > > it's not clear if this bit actually gates both the ipg and serial > > > clock or only one of them. > > You're right. ipg and serial clocks share the same gate. How do we > > handle it? I think it's not the only one and won't be last one. > > We don't have support for a single gate gating two clocks right now and > I don't know how this fits into the clock framework. > We could pretend that only the ipg clock is gateable because this is > needed anyway when the SSI unit is used. Shawn, will you add clk ssi_ipg? Thanks Richard > > It seems we need a proper solution for this later. > > 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 | > -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
