[v2,2/3] power: reset: syscon-reboot: Add support for specifying priority

Commit Message

Pali Rohár Aug. 30, 2022, 11 p.m. UTC

Read new optional device tree property priority for specifying priority
level of reset handler. Default value is 192 as before.

Signed-off-by: Pali Rohár <[e-mail]>
---
 drivers/power/reset/syscon-reboot.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Patch

diff --git a/drivers/power/reset/syscon-reboot.c b/drivers/power/reset/syscon-reboot.c
index 510e363381ca..45e34e6885f7 100644
--- a/drivers/power/reset/syscon-reboot.c
+++ b/drivers/power/reset/syscon-reboot.c
@@ -44,6 +44,7 @@  static int syscon_reboot_probe(struct platform_device *pdev)
 	struct syscon_reboot_context *ctx;
 	struct device *dev = &pdev->dev;
 	int mask_err, value_err;
+	int priority;
 	int err;
 
 	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
@@ -57,6 +58,9 @@  static int syscon_reboot_probe(struct platform_device *pdev)
 			return PTR_ERR(ctx->map);
 	}
 
+	if (of_property_read_s32(pdev->dev.of_node, "priority", &priority))
+		priority = 192;
+
 	if (of_property_read_u32(pdev->dev.of_node, "offset", &ctx->offset))
 		return -EINVAL;
 
@@ -77,7 +81,7 @@  static int syscon_reboot_probe(struct platform_device *pdev)
 	}
 
 	ctx->restart_handler.notifier_call = syscon_restart_handle;
-	ctx->restart_handler.priority = 192;
+	ctx->restart_handler.priority = priority;
 	err = register_restart_handler(&ctx->restart_handler);
 	if (err)
 		dev_err(dev, "can't register restart notifier (err=%d)\n", err);