Re: [PATCH v2] firmware: xilinx: Remove zynqmp_pm_get_eemi_ops() in IS_REACHABLE(CONFIG_ZYNQMP_FIRMWARE)

From: Nobuhiro Iwamatsu
Date: Mon Feb 15 2021 - 12:10:07 EST


Hi,

2021年2月12日(金) 21:53 Michal Simek <michal.simek@xxxxxxxxxx>:
>
>
>
> On 2/12/21 12:23 AM, Nobuhiro Iwamatsu wrote:
> > zynqmp_pm_get_eemi_ops() was removed in commit 4db8180ffe7c: "Firmware: xilinx:
> > Remove eemi ops for fpga related APIs", but not in IS_REACHABLE(CONFIG_ZYNQMP_FIRMWARE).
> > Any driver who want to communicate with PMC using EEMI APIs use the functions provided
> > for each function.
> > This removed zynqmp_pm_get_eemi_ops() in IS_REACHABLE(CONFIG_ZYNQMP_FIRMWARE), and also
> > modify the documentation for this driver.
> >
> > Fixes: 4db8180ffe7c ("firmware: xilinx: Remove eemi ops for fpga related APIs")
> > Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@xxxxxxxxxxx>
> > ---
> > v2: Added the comment pointed out by Michal.
> >
> > Documentation/driver-api/xilinx/eemi.rst | 27 +-----------------------
> > include/linux/firmware/xlnx-zynqmp.h | 5 -----
> > 2 files changed, 1 insertion(+), 31 deletions(-)
> >
> > diff --git a/Documentation/driver-api/xilinx/eemi.rst b/Documentation/driver-api/xilinx/eemi.rst
> > index 9dcbc6f18d75df..53416d25d309a8 100644
> > --- a/Documentation/driver-api/xilinx/eemi.rst
> > +++ b/Documentation/driver-api/xilinx/eemi.rst
> > @@ -19,32 +19,7 @@ device to issue or respond to power management requests.
> > EEMI ops is a structure containing all eemi APIs supported by Zynq MPSoC.
> > The zynqmp-firmware driver maintain all EEMI APIs in zynqmp_eemi_ops
> > structure. Any driver who want to communicate with PMC using EEMI APIs
> > -can call zynqmp_pm_get_eemi_ops().
> > -
> > -Example of EEMI ops::
> > -
> > - /* zynqmp-firmware driver maintain all EEMI APIs */
> > - struct zynqmp_eemi_ops {
> > - int (*get_api_version)(u32 *version);
> > - int (*query_data)(struct zynqmp_pm_query_data qdata, u32 *out);
> > - };
> > -
> > - static const struct zynqmp_eemi_ops eemi_ops = {
> > - .get_api_version = zynqmp_pm_get_api_version,
> > - .query_data = zynqmp_pm_query_data,
> > - };
> > -
> > -Example of EEMI ops usage::
> > -
> > - static const struct zynqmp_eemi_ops *eemi_ops;
> > - u32 ret_payload[PAYLOAD_ARG_CNT];
> > - int ret;
> > -
> > - eemi_ops = zynqmp_pm_get_eemi_ops();
> > - if (IS_ERR(eemi_ops))
> > - return PTR_ERR(eemi_ops);
> > -
> > - ret = eemi_ops->query_data(qdata, ret_payload);
> > +use the functions provided for each function.
> >
> > IOCTL
> > ------
> > diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
> > index 2a0da841c942f6..4ef77deaf7918c 100644
> > --- a/include/linux/firmware/xlnx-zynqmp.h
> > +++ b/include/linux/firmware/xlnx-zynqmp.h
> > @@ -355,11 +355,6 @@ int zynqmp_pm_read_pggs(u32 index, u32 *value);
> > int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype);
> > int zynqmp_pm_set_boot_health_status(u32 value);
> > #else
> > -static inline struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void)
> > -{
> > - return ERR_PTR(-ENODEV);
> > -}
> > -
> > static inline int zynqmp_pm_get_api_version(u32 *version)
> > {
> > return -ENODEV;
> >
>
> I can't see any difference compare to v1. Don't you forget to commit
> your changes?

Oh, sorry. I will resend with update.

Best regards,
Nobuhiro


--
Nobuhiro Iwamatsu
iwamatsu at {nigauri.org / debian.org}
GPG ID: 40AD1FA6