diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0054-firmware-bcm2835-Support-ARCH_BCM270x.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0054-firmware-bcm2835-Support-ARCH_BCM270x.patch | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0054-firmware-bcm2835-Support-ARCH_BCM270x.patch b/target/linux/bcm27xx/patches-4.19/950-0054-firmware-bcm2835-Support-ARCH_BCM270x.patch new file mode 100644 index 0000000000..2851cebfb2 --- /dev/null +++ b/target/linux/bcm27xx/patches-4.19/950-0054-firmware-bcm2835-Support-ARCH_BCM270x.patch @@ -0,0 +1,83 @@ +From 6f190ee10a1d3276450e6190bb6d75a03040dcef Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org> +Date: Fri, 26 Jun 2015 14:25:01 +0200 +Subject: [PATCH] firmware: bcm2835: Support ARCH_BCM270x +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Support booting without Device Tree. +Turn on USB power. +Load driver early because of lacking support for deferred probing +in many drivers. + +Signed-off-by: Noralf Trønnes <noralf@tronnes.org> + +firmware: bcm2835: Don't turn on USB power + +The raspberrypi-power driver is now used to turn on USB power. + +This partly reverts commit: +firmware: bcm2835: Support ARCH_BCM270x + +Signed-off-by: Noralf Trønnes <noralf@tronnes.org> +--- + drivers/firmware/raspberrypi.c | 19 +++++++++++++++++-- + 1 file changed, 17 insertions(+), 2 deletions(-) + +--- a/drivers/firmware/raspberrypi.c ++++ b/drivers/firmware/raspberrypi.c +@@ -31,6 +31,8 @@ struct rpi_firmware { + u32 enabled; + }; + ++static struct platform_device *g_pdev; ++ + static DEFINE_MUTEX(transaction_lock); + + static void response_callback(struct mbox_client *cl, void *msg) +@@ -230,6 +232,7 @@ static int rpi_firmware_probe(struct pla + init_completion(&fw->c); + + platform_set_drvdata(pdev, fw); ++ g_pdev = pdev; + + rpi_firmware_print_firmware_revision(fw); + rpi_register_hwmon_driver(dev, fw); +@@ -244,6 +247,7 @@ static int rpi_firmware_remove(struct pl + platform_device_unregister(rpi_hwmon); + rpi_hwmon = NULL; + mbox_free_channel(fw->chan); ++ g_pdev = NULL; + + return 0; + } +@@ -256,7 +260,7 @@ static int rpi_firmware_remove(struct pl + */ + struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node) + { +- struct platform_device *pdev = of_find_device_by_node(firmware_node); ++ struct platform_device *pdev = g_pdev; + + if (!pdev) + return NULL; +@@ -279,7 +283,18 @@ static struct platform_driver rpi_firmwa + .probe = rpi_firmware_probe, + .remove = rpi_firmware_remove, + }; +-module_platform_driver(rpi_firmware_driver); ++ ++static int __init rpi_firmware_init(void) ++{ ++ return platform_driver_register(&rpi_firmware_driver); ++} ++subsys_initcall(rpi_firmware_init); ++ ++static void __init rpi_firmware_exit(void) ++{ ++ platform_driver_unregister(&rpi_firmware_driver); ++} ++module_exit(rpi_firmware_exit); + + MODULE_AUTHOR("Eric Anholt <eric@anholt.net>"); + MODULE_DESCRIPTION("Raspberry Pi firmware driver"); |