diff options
| author | Nava kishore Manne <nava.kishore.manne@amd.com> | 2023-02-24 17:37:38 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-09 17:33:19 +0100 |
| commit | 995a3bb72101e7492572d48936cea0fa14c8b794 (patch) | |
| tree | 9decc9569c56b03d8198ac5920eb66b5bd28d5a2 /drivers/fpga | |
| parent | 8f118f61540e23fb0e4ec84aec361f6758dbe93a (diff) | |
| download | linux-995a3bb72101e7492572d48936cea0fa14c8b794.tar.gz | |
fpga: zynqmp-fpga: Adds status interface
Adds status interface for zynqmp-fpga. It's a read only interface
which allows the user to get the Programmable Logic(PL) configuration
status.
Usage:
To read the Programmable Logic(PL) configuration status.
cat /sys/bus/platform/drivers/zynqmp_fpga_manager/firmware:zynqmp-firmware:pcap/status
Signed-off-by: Nava kishore Manne <nava.kishore.manne@amd.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230224120738.329416-3-nava.kishore.manne@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/fpga')
| -rw-r--r-- | drivers/fpga/zynqmp-fpga.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/fpga/zynqmp-fpga.c b/drivers/fpga/zynqmp-fpga.c index c60f20949c470..f3434e2c487bf 100644 --- a/drivers/fpga/zynqmp-fpga.c +++ b/drivers/fpga/zynqmp-fpga.c @@ -77,6 +77,26 @@ static enum fpga_mgr_states zynqmp_fpga_ops_state(struct fpga_manager *mgr) return FPGA_MGR_STATE_UNKNOWN; } +static ssize_t status_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + u32 status; + int ret; + + ret = zynqmp_pm_fpga_get_config_status(&status); + if (ret) + return ret; + + return sysfs_emit(buf, "0x%x\n", status); +} +static DEVICE_ATTR_RO(status); + +static struct attribute *zynqmp_fpga_attrs[] = { + &dev_attr_status.attr, + NULL, +}; +ATTRIBUTE_GROUPS(zynqmp_fpga); + static const struct fpga_manager_ops zynqmp_fpga_ops = { .state = zynqmp_fpga_ops_state, .write_init = zynqmp_fpga_ops_write_init, @@ -113,6 +133,7 @@ static struct platform_driver zynqmp_fpga_driver = { .driver = { .name = "zynqmp_fpga_manager", .of_match_table = of_match_ptr(zynqmp_fpga_of_match), + .dev_groups = zynqmp_fpga_groups, }, }; |