[PATCH v5 02/14] ARM: OMAP2+: gpmc: Adapt to HWMOD

Mohammed, Afzal afzal at ti.com
Tue Jun 12 02:53:06 EDT 2012


Hi Jon,

On Tue, Jun 12, 2012 at 01:26:29, Hunter, Jon wrote:

> > +	pdev = omap_device_build(name, -1, oh, pdata,
> > +					sizeof(*pdata), NULL, 0, 0);
> > +	if (IS_ERR(pdev)) {
> > +		WARN(1, "Can't build omap_device for %s:%s.\n",
> > +						name, oh->name);
> > +		return PTR_ERR(pdev);
> > +	}
> > +
> > +	gpmc_l3_clk = clk_get(NULL, oh->main_clk);
> > +	if (IS_ERR(gpmc_l3_clk)) {
> > +		pr_err("Could not get GPMC clock\n");
> > +		return PTR_ERR(gpmc_l3_clk);
> > +	}
> 
> My preference would be to store gpmc_l3_clk in the pdata and pass to
> probe via the pdata. The aim would be to remove the global gpmc_l3_clk
> altogether.

For timing calculation by platform outside of driver, we need clk rate

> Also we should attempt to get the clk before calling omap_device_build
> which is registering the driver.

omap_device_build registers only device, but I agree that clk should
be obtained before it as driver can get probed at that point

Regards,
Afzal



More information about the linux-arm-kernel mailing list