diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-15 18:51:18 +0200 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-15 18:51:18 +0200 |
commit | c6dbef7307629cce855aa6b482b60cbf7777ed88 (patch) | |
tree | d8d13630bd57090173ad9f0c5f8e3bfb392964c9 /drivers/firmware | |
parent | Merge tag 'staging-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git... (diff) | |
parent | usb: musb: gadget: Use fallthrough pseudo-keyword (diff) | |
download | linux-c6dbef7307629cce855aa6b482b60cbf7777ed88.tar.xz linux-c6dbef7307629cce855aa6b482b60cbf7777ed88.zip |
Merge tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY/Thunderbolt driver updates from Greg KH:
"Here is the big set of USB, PHY, and Thunderbolt driver updates for
5.10-rc1.
Lots of tiny different things for these subsystems are in here,
including:
- phy driver updates
- thunderbolt / USB 4 updates and additions
- USB gadget driver updates
- xhci fixes and updates
- typec driver additions and updates
- api conversions to various drivers for core kernel api changes
- new USB control message functions to make it harder to get wrong,
as found by syzbot (took 2 tries to get it right)
- lots of tiny USB driver fixes and updates all over the place
All of these have been in linux-next for a while, with the exception
of the last "obviously correct" patch that updated a FALLTHROUGH
comment that got merged last weekend"
* tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (374 commits)
usb: musb: gadget: Use fallthrough pseudo-keyword
usb: typec: Add QCOM PMIC typec detection driver
USB: serial: option: add Cellient MPL200 card
usb: typec: tcpci_maxim: Add support for Sink FRS
usb: typec: tcpci: Implement callbacks for FRS
usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS)
usb: typec: tcpci_maxim: Chip level TCPC driver
usb: typec: tcpci: Add set_vbus tcpci callback
usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference
usbip: vhci_hcd: fix calling usb_hcd_giveback_urb() with irqs enabled
usb: cdc-acm: add quirk to blacklist ETAS ES58X devices
USB: serial: ftdi_sio: use cur_altsetting for consistency
USB: serial: option: Add Telit FT980-KS composition
USB: core: remove polling for /sys/kernel/debug/usb/devices
usb: typec: add support for STUSB160x Type-C controller family
usb: typec: add typec_find_pwr_opmode
usb: typec: hd3ss3220: Use OF graph API to get the connector fwnode
dt-bindings: usb: renesas,usb3-peri: Document HS and SS data bus
dt-bindings: usb: convert ti,hd3ss3220 bindings to json-schema
usb: dwc2: Fix INTR OUT transfers in DDMA mode.
...
Diffstat (limited to 'drivers/firmware')
-rw-r--r-- | drivers/firmware/Kconfig | 3 | ||||
-rw-r--r-- | drivers/firmware/raspberrypi.c | 61 |
2 files changed, 1 insertions, 63 deletions
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index fbd785dd0513..4843e94713a4 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -178,9 +178,8 @@ config ISCSI_IBFT Otherwise, say N. config RASPBERRYPI_FIRMWARE - bool "Raspberry Pi Firmware Driver" + tristate "Raspberry Pi Firmware Driver" depends on BCM2835_MBOX - default USB_PCI help This option enables support for communicating with the firmware on the Raspberry Pi. diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c index 8f2fb4c562da..2371d08bdd17 100644 --- a/drivers/firmware/raspberrypi.c +++ b/drivers/firmware/raspberrypi.c @@ -12,8 +12,6 @@ #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/slab.h> -#include <linux/pci.h> -#include <linux/delay.h> #include <soc/bcm2835/raspberrypi-firmware.h> #define MBOX_MSG(chan, data28) (((data28) & ~0xf) | ((chan) & 0xf)) @@ -21,8 +19,6 @@ #define MBOX_DATA28(msg) ((msg) & ~0xf) #define MBOX_CHAN_PROPERTY 8 -#define VL805_PCI_CONFIG_VERSION_OFFSET 0x50 - static struct platform_device *rpi_hwmon; static struct platform_device *rpi_clk; @@ -301,63 +297,6 @@ struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node) } EXPORT_SYMBOL_GPL(rpi_firmware_get); -/* - * The Raspberry Pi 4 gets its USB functionality from VL805, a PCIe chip that - * implements xHCI. After a PCI reset, VL805's firmware may either be loaded - * directly from an EEPROM or, if not present, by the SoC's co-processor, - * VideoCore. RPi4's VideoCore OS contains both the non public firmware load - * logic and the VL805 firmware blob. This function triggers the aforementioned - * process. - */ -int rpi_firmware_init_vl805(struct pci_dev *pdev) -{ - struct device_node *fw_np; - struct rpi_firmware *fw; - u32 dev_addr, version; - int ret; - - fw_np = of_find_compatible_node(NULL, NULL, - "raspberrypi,bcm2835-firmware"); - if (!fw_np) - return 0; - - fw = rpi_firmware_get(fw_np); - of_node_put(fw_np); - if (!fw) - return -ENODEV; - - /* - * Make sure we don't trigger a firmware load unnecessarily. - * - * If something went wrong with PCI, this whole exercise would be - * futile as VideoCore expects from us a configured PCI bus. Just take - * the faulty version (likely ~0) and let xHCI's registration fail - * further down the line. - */ - pci_read_config_dword(pdev, VL805_PCI_CONFIG_VERSION_OFFSET, &version); - if (version) - goto exit; - - dev_addr = pdev->bus->number << 20 | PCI_SLOT(pdev->devfn) << 15 | - PCI_FUNC(pdev->devfn) << 12; - - ret = rpi_firmware_property(fw, RPI_FIRMWARE_NOTIFY_XHCI_RESET, - &dev_addr, sizeof(dev_addr)); - if (ret) - return ret; - - /* Wait for vl805 to startup */ - usleep_range(200, 1000); - - pci_read_config_dword(pdev, VL805_PCI_CONFIG_VERSION_OFFSET, - &version); -exit: - pci_info(pdev, "VL805 firmware version %08x\n", version); - - return 0; -} -EXPORT_SYMBOL_GPL(rpi_firmware_init_vl805); - static const struct of_device_id rpi_firmware_of_match[] = { { .compatible = "raspberrypi,bcm2835-firmware", }, {}, |