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firmware: bcm2835: Support ARCH_BCM270x

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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>
This commit is contained in:
Noralf Trønnes
2015-06-26 14:25:01 +02:00
committed by popcornmix
parent a0ab2e0fa9
commit 09aa0fe31d
1 changed files with 17 additions and 2 deletions
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19
drivers/firmware/raspberrypi.c
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@@ -28,6 +28,8 @@ struct rpi_firmware {
u32 enabled; u32 enabled;
}; };
static struct platform_device *g_pdev;
static DEFINE_MUTEX(transaction_lock); static DEFINE_MUTEX(transaction_lock);
static void response_callback(struct mbox_client *cl, void *msg) static void response_callback(struct mbox_client *cl, void *msg)
@@ -231,6 +233,7 @@ static int rpi_firmware_probe(struct platform_device *pdev)
init_completion(&fw->c); init_completion(&fw->c);
platform_set_drvdata(pdev, fw); platform_set_drvdata(pdev, fw);
g_pdev = pdev;
rpi_firmware_print_firmware_revision(fw); rpi_firmware_print_firmware_revision(fw);
rpi_register_hwmon_driver(dev, fw); rpi_register_hwmon_driver(dev, fw);
@@ -255,6 +258,7 @@ static int rpi_firmware_remove(struct platform_device *pdev)
platform_device_unregister(rpi_hwmon); platform_device_unregister(rpi_hwmon);
rpi_hwmon = NULL; rpi_hwmon = NULL;
mbox_free_channel(fw->chan); mbox_free_channel(fw->chan);
g_pdev = NULL;
return 0; return 0;
} }
@@ -267,7 +271,7 @@ static int rpi_firmware_remove(struct platform_device *pdev)
*/ */
struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node) 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) if (!pdev)
return NULL; return NULL;
@@ -291,7 +295,18 @@ static struct platform_driver rpi_firmware_driver = {
.shutdown = rpi_firmware_shutdown, .shutdown = rpi_firmware_shutdown,
.remove = rpi_firmware_remove, .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_AUTHOR("Eric Anholt <eric@anholt.net>");
MODULE_DESCRIPTION("Raspberry Pi firmware driver"); MODULE_DESCRIPTION("Raspberry Pi firmware driver");