On Mon, Dec 01, 2014 at 05:03:07PM +0000, Stefan Agner wrote: > This patch adds an optional property which allows to specify the > reset source priority. This priority is used by the kernel restart > handler call chain to sort out the proper reset/restart method. > Depending on the power design of a board or other machine/board > specific peculiarity, it is not possible to pick a generic priority. > > Signed-off-by: Stefan Agner <stefan@xxxxxxxx> > --- > Documentation/devicetree/bindings/power/reset/syscon-reboot.txt | 3 +++ > drivers/power/reset/syscon-reboot.c | 5 ++++- > 2 files changed, 7 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/power/reset/syscon-reboot.txt b/Documentation/devicetree/bindings/power/reset/syscon-reboot.txt > index 1190631..ee41d9c 100644 > --- a/Documentation/devicetree/bindings/power/reset/syscon-reboot.txt > +++ b/Documentation/devicetree/bindings/power/reset/syscon-reboot.txt > @@ -11,6 +11,9 @@ Required properties: > - offset: offset in the register map for the reboot register (in bytes) > - mask: the reset value written to the reboot register (32 bit access) > > +Optional properties: > +- priority: define the priority of the reset (0-255, defaults to 128) > + NAK. This is a leak of Linux-internal details. What is this necessary for? Mark. > Default will be little endian mode, 32 bit access only. > > Examples: > diff --git a/drivers/power/reset/syscon-reboot.c b/drivers/power/reset/syscon-reboot.c > index 815b901..3060d6b 100644 > --- a/drivers/power/reset/syscon-reboot.c > +++ b/drivers/power/reset/syscon-reboot.c > @@ -67,8 +67,11 @@ static int syscon_reboot_probe(struct platform_device *pdev) > if (of_property_read_u32(pdev->dev.of_node, "mask", &ctx->mask)) > return -EINVAL; > > - ctx->restart_handler.notifier_call = syscon_restart_handle; > ctx->restart_handler.priority = 128; > + of_property_read_u32(pdev->dev.of_node, "priority", > + &ctx->restart_handler.priority); > + > + ctx->restart_handler.notifier_call = syscon_restart_handle; > err = register_restart_handler(&ctx->restart_handler); > if (err) > dev_err(dev, "can't register restart notifier (err=%d)\n", err); > -- > 2.1.3 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
