From: Noralf Trønnes Date: Fri, 26 Jun 2015 12:25:01 +0000 (+0200) Subject: firmware: bcm2835: Support ARCH_BCM270x X-Git-Tag: accepted/tizen/unified/20210330.111217~808 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e4a6adeb157e74ac24af85c6cf0eb2b0357951a2;p=platform%2Fkernel%2Flinux-rpi.git firmware: bcm2835: Support ARCH_BCM270x 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 --- diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c index 2371d08..5fec4ac 100644 --- a/drivers/firmware/raspberrypi.c +++ b/drivers/firmware/raspberrypi.c @@ -29,6 +29,8 @@ 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) @@ -249,6 +251,7 @@ static int rpi_firmware_probe(struct platform_device *pdev) init_completion(&fw->c); platform_set_drvdata(pdev, fw); + g_pdev = pdev; rpi_firmware_print_firmware_revision(fw); rpi_register_hwmon_driver(dev, fw); @@ -276,6 +279,7 @@ static int rpi_firmware_remove(struct platform_device *pdev) platform_device_unregister(rpi_clk); rpi_clk = NULL; mbox_free_channel(fw->chan); + g_pdev = NULL; return 0; } @@ -288,7 +292,7 @@ static int rpi_firmware_remove(struct platform_device *pdev) */ 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; @@ -312,7 +316,18 @@ static struct platform_driver rpi_firmware_driver = { .shutdown = rpi_firmware_shutdown, .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");