RE: [PATCH V2 1/7] firmware: imx: Add stubs for !CONFIG_IMX_SCU case

[Anson Huang <anson.huang@nxp.com>]

Hi, Guenter

> Subject: Re: [PATCH V2 1/7] firmware: imx: Add stubs for !CONFIG_IMX_SCU
> case
> 
> On 3/6/20 5:25 PM, Anson Huang wrote:
> > Add stubs for those i.MX SCU APIs to make those modules depending on
> > IMX_SCU can pass build when COMPILE_TEST is enabled.
> >
> > Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
> > ---
> > new patch.
> > ---
> >  include/linux/firmware/imx/ipc.h | 11 +++++++++++
> > include/linux/firmware/imx/sci.h | 19 +++++++++++++++++++
> >  2 files changed, 30 insertions(+)
> >
> > diff --git a/include/linux/firmware/imx/ipc.h
> > b/include/linux/firmware/imx/ipc.h
> > index 8910574..3fff0e2 100644
> > --- a/include/linux/firmware/imx/ipc.h
> > +++ b/include/linux/firmware/imx/ipc.h
> > @@ -34,6 +34,7 @@ struct imx_sc_rpc_msg {
> >  	uint8_t func;
> >  };
> >
> > +#ifdef CONFIG_IMX_SCU
> >  /*
> >   * This is an function to send an RPC message over an IPC channel.
> >   * It is called by client-side SCFW API function shims.
> > @@ -55,4 +56,14 @@ int imx_scu_call_rpc(struct imx_sc_ipc *ipc, void
> *msg, bool have_resp);
> >   * @return Returns an error code (0 = success, failed if < 0)
> >   */
> >  int imx_scu_get_handle(struct imx_sc_ipc **ipc);
> > +#else
> > +static inline int imx_scu_call_rpc(struct imx_sc_ipc *ipc, void *msg,
> > +bool have_resp) {
> > +	return 0;
> > +}
> > +static inline int imx_scu_get_handle(struct imx_sc_ipc **ipc) {
> > +	return 0;
> > +}
> > +#endif
> >  #endif /* _SC_IPC_H */
> > diff --git a/include/linux/firmware/imx/sci.h
> > b/include/linux/firmware/imx/sci.h
> > index 17ba4e4..4688b60 100644
> > --- a/include/linux/firmware/imx/sci.h
> > +++ b/include/linux/firmware/imx/sci.h
> > @@ -16,8 +16,27 @@
> >  #include <linux/firmware/imx/svc/misc.h>  #include
> > <linux/firmware/imx/svc/pm.h>
> >
> > +#ifdef CONFIG_IMX_SCU
> >  int imx_scu_enable_general_irq_channel(struct device *dev);  int
> > imx_scu_irq_register_notifier(struct notifier_block *nb);  int
> > imx_scu_irq_unregister_notifier(struct notifier_block *nb);  int
> > imx_scu_irq_group_enable(u8 group, u32 mask, u8 enable);
> > +#else
> > +static inline int imx_scu_enable_general_irq_channel(struct device
> > +*dev) {
> > +	return 0;
> > +}
> > +static inline int imx_scu_irq_register_notifier(struct notifier_block
> > +*nb) {
> > +	return 0;
> > +}
> > +static inline int imx_scu_irq_unregister_notifier(struct
> > +notifier_block *nb) {
> > +	return 0;
> > +}
> > +static inline int imx_scu_irq_group_enable(u8 group, u32 mask, u8
> > +enable) {
> > +	return 0;
> > +}
> 
> It would probably be more appropriate to return errors from the stub
> functions.

Agreed, improve them in V3 patch series.

Thanks,
Anson