On Sat, 2014-10-11 at 01:35AM, Wood Scott wrote:
> -----Original Message-----
> From: Wood Scott-B07421
> Sent: Saturday, October 11, 2014 1:35 AM
> To: Zhao Qiang-B45475
> Cc: linuxppc-dev@lists.ozlabs.org; linux-ker...@vger.kernel.org; Wood
> Scott-B07421; Xie Xiaobo-R63061
> Subject: Re: [PATCH 2/3] qe: run qe_init and qe_ic_init
>
> On Fri, 2014-10-10 at 14:48 +0800, Zhao Qiang wrote:
> > qe and qe_ic need to be initialized before the qe app drivers, using
> > subsys_initcall to run qe_init and qe_ic_init
> >
> > Signed-off-by: Zhao Qiang <b45...@freescale.com>
> > ---
> > drivers/soc/qe/qe.c | 15 +++++++++++++++
> > drivers/soc/qe/qe_ic.c | 15 +++++++++++++++
> > 2 files changed, 30 insertions(+)
> >
> > diff --git a/drivers/soc/qe/qe.c b/drivers/soc/qe/qe.c index
> > 2aaa5b2..bfea0f8 100644
> > --- a/drivers/soc/qe/qe.c
> > +++ b/drivers/soc/qe/qe.c
> > @@ -683,6 +683,21 @@ unsigned int qe_get_num_of_snums(void) }
> > EXPORT_SYMBOL(qe_get_num_of_snums);
> >
> > +static int __init qe_init(void)
> > +{
> > + struct device_node *np;
> > +
> > + np = of_find_compatible_node(NULL, NULL, "fsl,qe");
> > + if (!np) {
> > + pr_err("%s: Could not find Quicc Engine node\n", __func__);
> > + return -ENODEV;
> > + }
> > + qe_reset();
> > + of_node_put(np);
> > + return 0;
> > +}
> > +subsys_initcall(qe_init);
>
> It is not an error to enable QE support on hardware that doesn't have QE.
> Please remove the pr_err().
OK, will be modified on V2.
>
> > +
> > #if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC_85xx) static int
> > qe_resume(struct platform_device *ofdev) { diff --git
> > a/drivers/soc/qe/qe_ic.c b/drivers/soc/qe/qe_ic.c index
> > cc1b8d5..11fe98c 100644
> > --- a/drivers/soc/qe/qe_ic.c
> > +++ b/drivers/soc/qe/qe_ic.c
> > @@ -34,6 +34,7 @@
> > #include <linux/fsl/qe_ic.h>
> >
> > #include "qe_ic.h"
> > +#include "../../irqchip/irqchip.h"
>
> What do you need from here, and can it be moved to include/linux/...?
>
> The only thing I see defined in irqchip.h is IRQCHIP_DECLARE, and you
> don't use that in this patch...
OK, will be modified on V2.
>
> -Scott
>
> > static DEFINE_RAW_SPINLOCK(qe_ic_lock);
> >
> > @@ -501,4 +502,18 @@ static int __init init_qe_ic_sysfs(void)
> > return 0;
> > }
> >
> > +static int __init qeic_of_init(void)
> > +{
> > + struct device_node *np;
> > +
> > + np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
> > + if (np) {
> > + qe_ic_init(np, 0, qe_ic_cascade_low_mpic,
> > + qe_ic_cascade_high_mpic);
> > + of_node_put(np);
> > + }
> > + return 0;
> > +}
> > +subsys_initcall(qeic_of_init);
> > +
> > subsys_initcall(init_qe_ic_sysfs);
>
Best Regards
Zhao Qiang
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