[PATCH 2/3] power: reset: syscon-reboot: Add support for specifying priority
From: Pali Rohár <pali@kernel.org>
Date: 2022-08-20 10:30:31
Also in:
linux-pm, linuxppc-dev, lkml
Subsystem:
system reset/shutdown drivers, the rest · Maintainers:
Sebastian Reichel, Linus Torvalds
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 <pali@kernel.org> --- drivers/power/reset/syscon-reboot.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
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);
--
2.20.1