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firmware: xilinx: Remove zynqmp_pm_get_eemi_ops() in IS_REACHABLE(CONFIG_ZYNQMP_FIRMWARE) 

[ Upstream commit 79bfe480a0 ]

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: 4db8180ffe ("firmware: xilinx: Remove eemi ops for fpga related APIs")
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Link: https://lore.kernel.org/r/20210215155849.2425846-1-iwamatsu@nigauri.org
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Nobuhiro Iwamatsu 2021-02-16 00:58:49 +09:00 committed by Greg Kroah-Hartman
parent cfc0577ab1
commit 305a936af4
2 changed files with 2 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
Documentation/driver-api/xilinx/eemi.rst
View File

@ -16,35 +16,8 @@ components running across different processing clusters on a chip or
device to communicate with a power management controller (PMC) on a
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);
Any driver who wants to communicate with PMC using EEMI APIs use the
functions provided for each function.
IOCTL
------

5
include/linux/firmware/xlnx-zynqmp.h
View File

@ -354,11 +354,6 @@ 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;