From 6f190ee10a1d3276450e6190bb6d75a03040dcef Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= 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 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 --- 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 "); MODULE_DESCRIPTION("Raspberry Pi firmware driver");