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Diffstat (limited to 'sys-kernel/boest-v5.0.15/raspberrypi/0126-firmware-raspberrypi-Notify-firmware-of-a-reboot.patch')
-rw-r--r--sys-kernel/boest-v5.0.15/raspberrypi/0126-firmware-raspberrypi-Notify-firmware-of-a-reboot.patch86
1 files changed, 86 insertions, 0 deletions
diff --git a/sys-kernel/boest-v5.0.15/raspberrypi/0126-firmware-raspberrypi-Notify-firmware-of-a-reboot.patch b/sys-kernel/boest-v5.0.15/raspberrypi/0126-firmware-raspberrypi-Notify-firmware-of-a-reboot.patch
new file mode 100644
index 00000000..bea4f3e9
--- /dev/null
+++ b/sys-kernel/boest-v5.0.15/raspberrypi/0126-firmware-raspberrypi-Notify-firmware-of-a-reboot.patch
@@ -0,0 +1,86 @@
+From c8121e27bb2a4f60f086052ab3a99b482f7efe95 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Sat, 12 May 2018 21:35:43 +0100
+Subject: [PATCH 126/194] firmware/raspberrypi: Notify firmware of a reboot
+
+Register for reboot notifications, sending RPI_FIRMWARE_NOTIFY_REBOOT
+over the mailbox interface on reception.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/firmware/raspberrypi.c | 40 +++++++++++++++++++++++++++++++++-
+ 1 file changed, 39 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c
+index 8a317f6e8592..77dc51473b88 100644
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -12,6 +12,7 @@
+ #include <linux/of_platform.h>
+ #include <linux/platform_device.h>
+ #include <linux/slab.h>
++#include <linux/reboot.h>
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+
+ #define MBOX_MSG(chan, data28) (((data28) & ~0xf) | ((chan) & 0xf))
+@@ -176,6 +177,26 @@ int rpi_firmware_property(struct rpi_firmware *fw,
+ }
+ EXPORT_SYMBOL_GPL(rpi_firmware_property);
+
++static int rpi_firmware_notify_reboot(struct notifier_block *nb,
++ unsigned long action,
++ void *data)
++{
++ struct rpi_firmware *fw;
++ struct platform_device *pdev = g_pdev;
++
++ if (!pdev)
++ return 0;
++
++ fw = platform_get_drvdata(pdev);
++ if (!fw)
++ return 0;
++
++ (void)rpi_firmware_property(fw, RPI_FIRMWARE_NOTIFY_REBOOT,
++ 0, 0);
++
++ return 0;
++}
++
+ static void
+ rpi_firmware_print_firmware_revision(struct rpi_firmware *fw)
+ {
+@@ -286,15 +307,32 @@ static struct platform_driver rpi_firmware_driver = {
+ .remove = rpi_firmware_remove,
+ };
+
++static struct notifier_block rpi_firmware_reboot_notifier = {
++ .notifier_call = rpi_firmware_notify_reboot,
++};
++
+ static int __init rpi_firmware_init(void)
+ {
+- return platform_driver_register(&rpi_firmware_driver);
++ int ret = register_reboot_notifier(&rpi_firmware_reboot_notifier);
++ if (ret)
++ goto out1;
++ ret = platform_driver_register(&rpi_firmware_driver);
++ if (ret)
++ goto out2;
++
++ return 0;
++
++out2:
++ unregister_reboot_notifier(&rpi_firmware_reboot_notifier);
++out1:
++ return ret;
+ }
+ subsys_initcall(rpi_firmware_init);
+
+ static void __init rpi_firmware_exit(void)
+ {
+ platform_driver_unregister(&rpi_firmware_driver);
++ unregister_reboot_notifier(&rpi_firmware_reboot_notifier);
+ }
+ module_exit(rpi_firmware_exit);
+