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().
> +
> #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...
-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);
--
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