diff options
Diffstat (limited to 'drivers/firmware/xilinx/zynqmp.c')
| -rw-r--r-- | drivers/firmware/xilinx/zynqmp.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 7356e860e65c..02da3e48bc8f 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -20,6 +20,7 @@ #include <linux/of.h> #include <linux/of_platform.h> #include <linux/platform_device.h> +#include <linux/pm_domain.h> #include <linux/slab.h> #include <linux/uaccess.h> #include <linux/hashtable.h> @@ -1299,11 +1300,10 @@ EXPORT_SYMBOL_GPL(zynqmp_pm_bootmode_write); * This API function is to be used for notify the power management controller * about the completed power management initialization. */ -int zynqmp_pm_init_finalize(void) +static int zynqmp_pm_init_finalize(void) { return zynqmp_pm_invoke_fn(PM_PM_INIT_FINALIZE, NULL, 0); } -EXPORT_SYMBOL_GPL(zynqmp_pm_init_finalize); /** * zynqmp_pm_set_suspend_mode() - Set system suspend mode @@ -2100,6 +2100,19 @@ static void zynqmp_firmware_remove(struct platform_device *pdev) platform_device_unregister(em_dev); } +static void zynqmp_firmware_sync_state(struct device *dev) +{ + struct device_node *np = dev->of_node; + + if (!of_device_is_compatible(np, "xlnx,zynqmp-firmware")) + return; + + of_genpd_sync_state(np); + + if (zynqmp_pm_init_finalize()) + dev_warn(dev, "failed to release power management to firmware\n"); +} + static const struct of_device_id zynqmp_firmware_of_match[] = { {.compatible = "xlnx,zynqmp-firmware"}, {.compatible = "xlnx,versal-firmware"}, @@ -2112,6 +2125,7 @@ static struct platform_driver zynqmp_firmware_driver = { .name = "zynqmp_firmware", .of_match_table = zynqmp_firmware_of_match, .dev_groups = zynqmp_firmware_groups, + .sync_state = zynqmp_firmware_sync_state, }, .probe = zynqmp_firmware_probe, .remove = zynqmp_firmware_remove, |