Hector Martin [Sun, 6 Feb 2022 12:13:17 +0000 (21:13 +0900)]
PCI: apple: GPIO handling nitfixes
- Use devm managed GPIO getter
- GPIO ops can sleep in this context
Fixes:
1e33888fbe44 ("PCI: apple: Add initial hardware bring-up")
Cc: stable@vger.kernel.org
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Sun, 6 Feb 2022 12:09:11 +0000 (21:09 +0900)]
dt-bindings: pci: apple,pcie: Drop max-link-speed from example
We no longer use these since
111659c2a570 (and they never worked
anyway); drop them from the example to avoid confusion.
Fixes:
111659c2a570 ("arm64: dts: apple: t8103: Remove PCIe max-link-speed properties")
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Fri, 4 Feb 2022 03:59:39 +0000 (12:59 +0900)]
arm64: dts: apple: Add SMC node to t8103/t6001 devicetrees
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Fri, 4 Feb 2022 03:52:52 +0000 (12:52 +0900)]
gpio: Add new gpio-macsmc driver for Apple Macs
This driver implements the GPIO service on top of the SMC framework
on Apple Mac machines. In particular, these are the GPIOs present in the
PMU IC which are used to control power to certain on-board devices.
Although the underlying hardware supports various pin config settings
(input/output, open drain, etc.), this driver does not implement that
functionality and leaves it up to the firmware to configure things
properly. We also don't yet support interrupts/events. This is
sufficient for device power control, which is the only thing we need to
support at this point. More features will be implemented when needed.
To our knowledge, only Apple Silicon Macs implement this SMC feature.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Fri, 4 Feb 2022 03:47:07 +0000 (12:47 +0900)]
platform/apple: Add new Apple Mac SMC driver
This driver implements support for the SMC (System Management
Controller) in Apple Macs. In contrast to the existing applesmc driver,
it uses pluggable backends that allow it to support different SMC
implementations, and uses the MFD subsystem to expose the core SMC
functionality so that specific features (gpio, hwmon, battery, etc.) can
be implemented by separate drivers in their respective downstream
subsystems.
The initial RTKit backend adds support for Apple Silicon Macs (M1 et
al). We hope a backend for T2 Macs will be written in the future
(since those are not supported by applesmc), and eventually an x86
backend would allow us to fully deprecate applesmc in favor of this
driver.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Wed, 2 Feb 2022 08:49:45 +0000 (17:49 +0900)]
arm64: Set ARCH_NR_GPIO to 2048 for ARCH_APPLE
We're already running into the 512 GPIO limit on t600[01] depending on
how many SMC GPIOs we allocate, and a 2-die version could double that.
Let's make it 2K to be safe for now.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Mon, 31 Jan 2022 15:40:51 +0000 (00:40 +0900)]
lib/vsprintf: Add support for generic FOURCCs by extending %p4cc
%p4cc is designed for DRM/V4L2 FOURCCs with their specific quirks, but
it's useful to be able to print generic 4-character codes formatted as
an integer. Extend it to add format specifiers for printing generic
32-bit FOURCCs with various endian semantics:
%p4ch Host-endian
%p4cl Little-endian
%p4cb Big-endian
%p4cr Reverse-endian
The endianness determines how bytes are interpreted as a u32, and the
FOURCC is then always printed MSByte-first (this is the opposite of
V4L/DRM FOURCCs). This covers most practical cases, e.g. %p4cr would
allow printing LSByte-first FOURCCs stored in host endian order
(other than the hex form being in character order, not the integer
value).
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 8 Feb 2022 10:01:27 +0000 (19:01 +0900)]
soc: apple: rtkit: Add recv_message_early callback and apple_rtkit_poll
These allow a client to receive contexts in atomic context, by polling.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 8 Feb 2022 07:58:53 +0000 (16:58 +0900)]
soc: apple: rtkit: Switch to atomic mailbox API
Turns off tx_block and use the tx_done callback to implement our own
completion handling. This makes our usage of the mailbox API
atomic-safe, and using a per-message completion is also more robust.
Then, implement apple_rtkit_send_message_atomic which polls for
transmission to be complete instead of using a completion. This is
required to send RTKit messages from atomic contexts, notably the
final system shutdown message to SMC.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 8 Feb 2022 10:16:08 +0000 (19:16 +0900)]
mailbox: apple: Implement peek_data() operation
This allows clients running in atomic context to poll for messages to
arrive.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 8 Feb 2022 07:57:47 +0000 (16:57 +0900)]
mailbox: apple: Implement flush() operation
This allows clients to use the atomic-safe mailbox API style.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Fri, 21 Jan 2022 07:39:41 +0000 (16:39 +0900)]
fixup! WIP: soc: apple: rtkit: Add RTKit library
Fix shutdown path getting stuck on the worker thread never exiting
Signed-off-by: Hector Martin <marcan@marcan.st>
Janne Grunau [Sun, 23 Jan 2022 09:03:06 +0000 (10:03 +0100)]
fixup! WIP: nvme-apple: add initial Apple SoC NVMe driver
nvme-apple: update RTKit buffer handling in Apple SoC NVMe driver
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Sun, 23 Jan 2022 08:57:33 +0000 (09:57 +0100)]
fixup! WIP: soc: apple: rtkit: Add RTKit library
soc: apple: rtkit: Support RTKit devices with mixed AP and IOP managed buffers
DCP uses a IOP managed buffer for the crashlog buffer but expects AP
allocated shared buffers otherwise.
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Mon, 10 Jan 2022 09:18:17 +0000 (10:18 +0100)]
fixup! WIP: soc: apple: rtkit: Add RTKit library
soc: apple: rtkit: Add oslog system endpoint (EP 8)
Required for starting dcp.
Signed-off-by: Janne Grunau <j@jannau.net>
Hector Martin [Tue, 8 Feb 2022 05:50:12 +0000 (14:50 +0900)]
Merge branch 'bits/100-shutdown-notifier' into asahi
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:18 +0000 (02:37 +0300)]
reboot: Remove pm_power_off_prepare()
All pm_power_off_prepare() users were converted to sys-off handler API.
Remove the obsolete callback.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:17 +0000 (02:37 +0300)]
regulator: pfuze100: Use devm_register_sys_off_handler()
Use devm_register_sys_off_handler() that replaces global
pm_power_off_prepare variable and allows to register multiple
power-off handlers.
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:16 +0000 (02:37 +0300)]
ACPI: power: Switch to sys-off handler API
Switch to sys-off API that replaces legacy pm_power_off callbacks.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:15 +0000 (02:37 +0300)]
memory: emif: Use kernel_can_power_off()
Replace legacy pm_power_off with kernel_can_power_off() helper that
is aware about chained power-off handlers.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:14 +0000 (02:37 +0300)]
nds32: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:13 +0000 (02:37 +0300)]
mips: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:12 +0000 (02:37 +0300)]
ia64: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:11 +0000 (02:37 +0300)]
x86: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:10 +0000 (02:37 +0300)]
sh: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:09 +0000 (02:37 +0300)]
m68k: Switch to new sys-off handler API
Kernel now supports chained power-off handlers. Use
register_power_off_handler() that registers power-off handlers and
do_kernel_power_off() that invokes chained power-off handlers. Legacy
pm_power_off() will be removed once all drivers will be converted to
the new power-off API.
Normally arch code should adopt only the do_kernel_power_off() at first,
but m68k is a special case because it uses pm_power_off() "inside out",
i.e. pm_power_off() invokes machine_power_off() [in fact it does nothing],
while it's machine_power_off() that should invoke the pm_power_off(), and
thus, we can't convert platforms to the new API separately. There are only
two platforms changed here, so it's not a big deal.
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:08 +0000 (02:37 +0300)]
powerpc: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:07 +0000 (02:37 +0300)]
xen/x86: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Acked-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:06 +0000 (02:37 +0300)]
parisc: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Acked-by: Helge Deller <deller@gmx.de> # parisc
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:05 +0000 (02:37 +0300)]
arm64: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:04 +0000 (02:37 +0300)]
riscv: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Acked-by: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:03 +0000 (02:37 +0300)]
csky: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Acked-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:02 +0000 (02:37 +0300)]
ARM: Use do_kernel_power_off()
Kernel now supports chained power-off handlers. Use do_kernel_power_off()
that invokes chained power-off handlers. It also invokes legacy
pm_power_off() for now, which will be removed once all drivers will
be converted to the new power-off API.
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:01 +0000 (02:37 +0300)]
kernel: Add combined power-off+restart handler call chain API
SoC platforms often have multiple ways of how to perform system's
power-off and restart operations. Meanwhile today's kernel is limited to
a single option. Add combined power-off+restart handler call chain API,
which is inspired by the restart API. The new API provides both power-off
and restart functionality.
The old pm_power_off method will be kept around till all users are
converted to the new API.
Current restart API will be replaced by the new unified API since
new API is its superset. The restart functionality of the sys-off handler
API is built upon the existing restart-notifier APIs.
In order to ease conversion to the new API, convenient helpers are added
for the common use-cases. They will reduce amount of boilerplate code and
remove global variables. These helpers preserve old behaviour for cases
where only one power-off handler is expected, this is what all existing
drivers want, and thus, they could be easily converted to the new API.
Users of the new API should explicitly enable power-off chaining by
setting corresponding flag of the power_handler structure.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:37:00 +0000 (02:37 +0300)]
reboot: Print error message if restart handler has duplicated priority
Add sanity check which ensures that there are no two restart handlers
registered using the same priority. This requirement will become mandatory
once all drivers will be converted to the new API and such errors will be
fixed.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:36:59 +0000 (02:36 +0300)]
notifier: Add atomic/blocking_notifier_chain_register_unique_prio()
Add variant of atomic/blocking_notifier_chain_register() functions that
doesn't allow to register notifier using a duplicated priority. The -EBUSY
error code is returned in this case by the new API functions.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Dmitry Osipenko [Sun, 30 Jan 2022 23:36:58 +0000 (02:36 +0300)]
notifier: Add blocking_notifier_call_chain_is_empty()
Add blocking_notifier_call_chain_is_empty() that returns true if call
chain is empty.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Hector Martin [Tue, 18 Jan 2022 11:22:32 +0000 (20:22 +0900)]
Merge branches 'refs/heads/bits/000-devicetree', 'refs/heads/bits/020-t6000-bringup', 'refs/heads/bits/030-misc', 'refs/heads/bits/060-spi', 'refs/heads/bits/070-audio', 'refs/heads/bits/080-wifi' and 'refs/heads/bits/090-spi-hid' into asahi
Janne Grunau [Fri, 10 Dec 2021 18:38:43 +0000 (19:38 +0100)]
WIP: HID: transport: spi: add Apple SPI transport
Keyboard and trackpad of Apple Sillicon SoCs (M1, M1 Pro/Max) laptops
are are HID devices connected via SPI.
This is the same protocol as implemented by applespi.c. It was not
noticed that protocol is a transport for HID. Adding support for ACPI
based Intel MacBooks will be done in a separate commit.
How HID is mapped in this protocol is not yet fully understood.
Microsoft has a specification for HID over SPI [1] incompatible with the
transport protocol used by Apple.
[1] https://docs.microsoft.com/en-us/windows-hardware/drivers/hid/hid-over-spi
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Thu, 16 Dec 2021 00:17:48 +0000 (01:17 +0100)]
HID: magicmouse: add support for Macbook trackpads
The trackpads in Macbooks beginning in 2015 are HID devices connected
over SPI. On Intel Macbooks they are currently supported by applespi.c.
This chang adds support for the trackpads on Apple Silicon Macbooks
starting in late 2020. They use a new HID over SPI transport driver.
The touch report format differs from USB/BT Magic Trackpads. It is the
same format as the type 4 format supported by bcm5974.c.
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Wed, 15 Dec 2021 23:15:30 +0000 (00:15 +0100)]
HID: magicmouse: use ops function pointers for input functionality
Will be used for supporting MacBook trackpads connected via SPI.
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Wed, 15 Dec 2021 23:12:35 +0000 (00:12 +0100)]
HID: magicmouse: use struct input_mt_pos for X/Y
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Wed, 15 Dec 2021 23:10:51 +0000 (00:10 +0100)]
HID: magicmouse: use a define of the max number of touch contacts
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Wed, 5 Jan 2022 22:27:34 +0000 (23:27 +0100)]
HID: apple: add Fn key mapping for Macbook Pro with touchbar
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Sun, 19 Dec 2021 17:08:15 +0000 (18:08 +0100)]
HID: apple: add Fn key mapping for Apple silicon MacBooks
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Thu, 16 Dec 2021 20:15:31 +0000 (21:15 +0100)]
HID: apple: add support for internal keyboards
Apple MacBook keyboards started using HID over SPI in 2015. With the
addition of the SPI HID transport they can be supported by this driver.
Support all product ids over with the Apple SPI vendor id for now.
Individual product ids will have to be added for a correct Fn/function
key mapping.
Enable by default on the Apple Arm platform.
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Sun, 12 Dec 2021 19:40:04 +0000 (20:40 +0100)]
HID: add device IDs for Apple SPI HID devices
Apple Silicon based laptop use SPI as transport for HID. Add support for
SPI-based HID devices and and Apple keyboard and trackpad devices.
Intel based laptops using the keyboard input driver applespi use the
same HID over SPI protocol and can be supported later.
This requires SPI keyboard/mouse HID types since Apple's intenal
keyboards/trackpads use the same product id.
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Sat, 11 Dec 2021 11:21:04 +0000 (12:21 +0100)]
spi: parse CS delay values from DT
Signed-off-by: Janne Grunau <j@jannau.net>
Janne Grunau [Sat, 11 Dec 2021 10:48:56 +0000 (11:48 +0100)]
spi: dt-bindings: add CS delay peripheral-specific properties
These properties are modelled after Linux' struct spi_device cs_setup,
cs_hold and cs_inactive delay values.
Signed-off-by: Janne Grunau <j@jannau.net>
Hector Martin [Sat, 25 Dec 2021 15:53:37 +0000 (00:53 +0900)]
brcmfmac: common: Add support for external calibration blobs
The calibration blob for a chip is normally stored in SROM and loaded
internally by the firmware. However, Apple ARM64 platforms instead store
it as part of platform configuration data, and provide it via the Apple
Device Tree. We forward this into the Linux DT in the bootloader.
Add support for taking this blob from the DT and loading it into the
dongle. The loading mechanism is the same as used for the CLM and TxCap
blobs.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Sat, 25 Dec 2021 15:26:10 +0000 (00:26 +0900)]
brcmfmac: pcie: Load and provide TxCap blobs
These blobs are named .txcap_blob, and exist alongside the existing
.clm_blob files. Use the existing firmware machinery to provide them to
the core.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Sat, 25 Dec 2021 15:25:00 +0000 (00:25 +0900)]
brcmfmac: common: Add support for downloading TxCap blobs
The TxCap blobs are additional data blobs used on Apple devices, and
are uploaded analogously to CLM blobs. Add core support for doing this.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:52:03 +0000 (17:52 +0900)]
brcmfmac: pcie: Add IDs/properties for BCM4387
This chip is present on Apple M1 Pro/Max (t600x) platforms:
* maldives (apple,j314s): MacBook Pro (14-inch, M1 Pro, 2021)
* maldives (apple,j314c): MacBook Pro (14-inch, M1 Max, 2021)
* madagascar (apple,j316s): MacBook Pro (16-inch, M1 Pro, 2021)
* madagascar (apple,j316c): MacBook Pro (16-inch, M1 Max, 2021)
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Thu, 6 Jan 2022 10:45:15 +0000 (19:45 +0900)]
brcmflac: cfg80211: Use WSEC to set SAE password
Using the WSEC command instead of sae_password seems to be the supported
mechanism on newer firmware, and also how the brcmdhd driver does it.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Mon, 20 Dec 2021 10:15:58 +0000 (19:15 +0900)]
brcmfmac: cfg80211: Pass the PMK in binary instead of hex
Apparently the hex passphrase mechanism does not work on newer
chips/firmware (e.g. BCM4387). It seems there was a simple way of
passing it in binary all along, so use that and avoid the hexification.
OpenBSD has been doing it like this from the beginning, so this should
work on all chips.
Also clear the structure before setting the PMK. This was leaking
uninitialized stack contents to the device.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Mon, 20 Dec 2021 09:16:33 +0000 (18:16 +0900)]
brcmfmac: cfg80211: Add support for PMKID_V3 operations
Add support for the new PMKID_V3 API, which allows performing PMKID
mutations individually, instead of requiring the driver to keep track of
the full list. This new API is required by at least BCM4387.
Note that PMKID_V2 is not implemented yet.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Mon, 20 Dec 2021 09:15:10 +0000 (18:15 +0900)]
brcmfmac: feature: Add support for setting feats based on WLC version
The "wlc_ver" iovar returns information on the WLC and EPI versions.
This can be used to determine whether the PMKID_V2 and _V3 features are
supported.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Sun, 19 Dec 2021 18:39:44 +0000 (03:39 +0900)]
brcmfmac: cfg80211: Add support for scan params v2
This new API version is required for at least the BCM4387 firmware. Add
support for it, with a fallback to the v1 API.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:14:59 +0000 (17:14 +0900)]
brcmfmac: chip: Handle 1024-unit sizes for TCM blocks
BCM4387 has trailing odd-sized blocks as part of TCM which have
their size described as a multiple of 1024 instead of 8192. Handle this
so we can compute the TCM size properly.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Mon, 20 Dec 2021 11:00:57 +0000 (20:00 +0900)]
brcmfmac: chip: Only disable D11 cores; handle an arbitrary number
At least on BCM4387, the D11 cores are held in reset on cold startup and
firmware expects to release reset itself. Just assert reset here and let
firmware deassert it. Premature deassertion results in the firmware
failing to initialize properly some of the time, with strange AXI bus
errors.
Also, BCM4387 has 3 cores, up from 2. The logic for handling that is in
brcmf_chip_ai_resetcore(), but since we aren't using that any more, just
handle it here.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:51:52 +0000 (17:51 +0900)]
brcmfmac: pcie: Perform correct BCM4364 firmware selection
This chip exists in two revisions (B2=r3 and B3=r4) on different
platforms, and was added without regard to doing proper firmware
selection or differentiating between them. Fix this to have proper
per-revision firmwares and support Apple NVRAM selection.
Revision B2 is present on at least these Apple T2 Macs:
kauai: MacBook Pro 15" (Touch/2018-2019)
maui: MacBook Pro 13" (Touch/2018-2019)
lanai: Mac mini (Late 2018)
ekans: iMac Pro 27" (5K, Late 2017)
And these non-T2 Macs:
nihau: iMac 27" (5K, 2019)
Revision B3 is present on at least these Apple T2 Macs:
bali: MacBook Pro 16" (2019)
trinidad: MacBook Pro 13" (2020, 4 TB3)
borneo: MacBook Pro 16" (2019, 5600M)
kahana: Mac Pro (2019)
kahana: Mac Pro (2019, Rack)
hanauma: iMac 27" (5K, 2020)
kure: iMac 27" (5K, 2020, 5700/XT)
Fixes:
24f0bd136264 ("brcmfmac: add the BRCM 4364 found in MacBook Pro 15,2")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:51:31 +0000 (17:51 +0900)]
brcmfmac: pcie: Add IDs/properties for BCM4377
This chip is present on at least these Apple T2 Macs:
* tahiti: MacBook Pro 13" (2020, 2 TB3)
* formosa: MacBook Pro 13" (Touch/2019)
* fiji: MacBook Air 13" (Scissor, 2020)
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:50:15 +0000 (17:50 +0900)]
brcmfmac: pcie: Add IDs/properties for BCM4355
This chip is present on at least these Apple T2 Macs:
* hawaii: MacBook Air 13" (Late 2018)
* hawaii: MacBook Air 13" (True Tone, 2019)
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Thu, 23 Dec 2021 10:30:17 +0000 (19:30 +0900)]
brcmfmac: pcie: Provide a buffer of random bytes to the device
Newer Apple firmwares on chipsets without a hardware RNG require the
host to provide a buffer of 256 random bytes to the device on
initialization. This buffer is present immediately before NVRAM,
suffixed by a footer containing a magic number and the buffer length.
This won't affect chips/firmwares that do not use this feature, so do it
unconditionally.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Thu, 23 Dec 2021 10:51:36 +0000 (19:51 +0900)]
brcmfmac: acpi: Add support for fetching Apple ACPI properties
On DT platforms, the module-instance and antenna-sku-info properties
are passed in the DT. On ACPI platforms, module-instance is passed via
the analogous Apple device property mechanism, while the antenna SKU
info is instead obtained via an ACPI method that grabs it from
non-volatile storage.
Add support for this, to allow proper firmware selection on Apple
platforms.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Thu, 23 Dec 2021 10:51:11 +0000 (19:51 +0900)]
ACPI / property: Support strings in Apple _DSM props
The Wi-Fi module in Apple machines has a "module-instance" device
property that specifies the platform type and is used for firmware
selection. Its value is a string, so add support for string values in
acpi_extract_apple_properties().
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:46:40 +0000 (17:46 +0900)]
brcmfmac: pcie: Add IDs/properties for BCM4378
This chip is present on Apple M1 (t8103) platforms:
* atlantisb (apple,j274): Mac mini (M1, 2020)
* honshu (apple,j293): MacBook Pro (13-inch, M1, 2020)
* shikoku (apple,j313): MacBook Air (M1, 2020)
* capri (apple,j456): iMac (24-inch, 4x USB-C, M1, 2020)
* santorini (apple,j457): iMac (24-inch, 2x USB-C, M1, 2020)
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:25:35 +0000 (17:25 +0900)]
brcmfmac: pcie: Support PCIe core revisions >= 64
These newer PCIe core revisions include new sets of registers that must
be used instead of the legacy ones. Introduce a brcmf_pcie_reginfo to
hold the specific register offsets and values to use for a given
platform, and change all the register accesses to indirect through it.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:39:04 +0000 (17:39 +0900)]
brcmfmac: msgbuf: Increase RX ring sizes to 1024
Newer chips used on Apple platforms have a max_rxbufpost greater than
512, which causes warnings when brcmf_msgbuf_rxbuf_data_fill tries to
put more entries in the ring than will fit. Increase the ring sizes
to 1024.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Thu, 23 Dec 2021 13:32:08 +0000 (22:32 +0900)]
brcmfmac: firmware: Allow platform to override macaddr
On Device Tree platforms, it is customary to be able to set the MAC
address via the Device Tree, as it is often stored in system firmware.
This is particularly relevant for Apple ARM64 platforms, where this
information comes from system configuration and passed through by the
bootloader into the DT.
Implement support for this by fetching the platform MAC address and
adding or replacing the macaddr= property in nvram. This becomes the
dongle's default MAC address.
On platforms with an SROM MAC address, this overrides it. On platforms
without one, such as Apple ARM64 devices, this is required for the
firmware to boot (it will fail if it does not have a valid MAC at all).
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:45:21 +0000 (17:45 +0900)]
brcmfmac: pcie: Perform firmware selection for Apple platforms
On Apple platforms, firmware selection uses the following elements:
Property Example Source
============== ======= ========================
* Chip name 4378 Device ID
* Chip revision B1 OTP
* Platform shikoku DT (ARM64) or ACPI (x86)
* Module type RASP OTP
* Module vendor m OTP
* Module version 6.11 OTP
* Antenna SKU X3 DT (ARM64) or ACPI (x86)
In macOS, these firmwares are stored using filenames in this format
under /usr/share/firmware/wifi:
C-4378__s-B1/P-shikoku-X3_M-RASP_V-m__m-6.11.txt
To prepare firmwares for Linux, we rename these to a scheme following
the existing brcmfmac convention:
brcmfmac<chip><lower(rev)>-pcie.apple,<platform>-<mod_type>-\
<mod_vendor>-<mod_version>-<antenna_sku>.txt
The NVRAM uses all the components, while the firmware and CLM blob only
use the chip/revision/platform/antenna_sku:
brcmfmac<chip><lower(rev)>-pcie.apple,<platform>-<antenna_sku>.bin
e.g.
brcm/brcmfmac4378b1-pcie.apple,shikoku-RASP-m-6.11-X3.txt
brcm/brcmfmac4378b1-pcie.apple,shikoku-X3.bin
In addition, since there are over 1000 files in total, many of which are
symlinks or outright duplicates, we deduplicate and prune the firmware
tree to reduce firmware filenames to fewer dimensions. For example, the
shikoku platform (MacBook Air M1 2020) simplifies to just 4 files:
brcm/brcmfmac4378b1-pcie.apple,shikoku.clm_blob
brcm/brcmfmac4378b1-pcie.apple,shikoku.bin
brcm/brcmfmac4378b1-pcie.apple,shikoku-RASP-m.txt
brcm/brcmfmac4378b1-pcie.apple,shikoku-RASP-u.txt
This reduces the total file count to around 170, of which 75 are
symlinks and 95 are regular files: 7 firmware blobs, 27 CLM blobs, and
61 NVRAM config files. We also slightly process NVRAM files to correct
some formatting issues.
To handle this, the driver must try the following path formats when
looking for firmware files:
brcm/brcmfmac4378b1-pcie.apple,shikoku-RASP-m-6.11-X3.txt
brcm/brcmfmac4378b1-pcie.apple,shikoku-RASP-m-6.11.txt
brcm/brcmfmac4378b1-pcie.apple,shikoku-RASP-m.txt
brcm/brcmfmac4378b1-pcie.apple,shikoku-RASP.txt
brcm/brcmfmac4378b1-pcie.apple,shikoku-X3.txt *
brcm/brcmfmac4378b1-pcie.apple,shikoku.txt
* Not relevant for NVRAM, only for firmware/CLM.
The chip revision nominally comes from OTP on Apple platforms, but it
can be mapped to the PCI revision number, so we ignore the OTP revision
and continue to use the existing PCI revision mechanism to identify chip
revisions, as the driver already does for other chips. Unfortunately,
the mapping is not consistent between different chip types, so this has
to be determined experimentally.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:27:19 +0000 (17:27 +0900)]
brcmfmac: of: Fetch Apple properties
On Apple ARM64 platforms, firmware selection requires two properties
that come from system firmware: the module-instance (aka "island", a
codename representing a given hardware platform) and the antenna-sku.
We map Apple's module codenames to board_types in the form
"apple,<module-instance>".
The mapped board_type is added to the DTS file in that form, while the
antenna-sku is forwarded by our bootloader from the Apple Device Tree
into the FDT. Grab them from the DT so firmware selection can use
them.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:26:34 +0000 (17:26 +0900)]
brcmfmac: pcie: Read Apple OTP information
On Apple platforms, the One Time Programmable ROM in the Broadcom chips
contains information about the specific board design (module, vendor,
version) that is required to select the correct NVRAM file. Parse this
OTP ROM and extract the required strings.
Note that the user OTP offset/size is per-chip. This patch does not add
any chips yet.
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Fri, 7 Jan 2022 02:14:44 +0000 (11:14 +0900)]
brcmfmac: firmware: Support passing in multiple board_types
Apple platforms have firmware and config files identified with multiple
dimensions. We want to be able to find the most specific firmware
available for any given platform, progressively trying more general
firmwares.
To do this, first add support for passing in multiple board_types,
which will be tried in sequence.
Since this will cause more log spam due to missing firmwares, also
switch the secondary firmware fecthes to use the _nowarn variant, which
will not log if the firmware is not found.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:13:49 +0000 (17:13 +0900)]
brcmfmac: pcie/sdio/usb: Get CLM blob via standard firmware mechanism
Now that the firmware fetcher can handle per-board CLM files, load the
CLM blob alongside the other firmware files and change the bus API to
just return the existing blob, instead of fetching the filename.
This enables per-board CLM blobs, which are required on Apple platforms.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Sat, 18 Dec 2021 11:52:04 +0000 (20:52 +0900)]
brcmfmac: firmware: Handle per-board clm_blob files
Teach brcm_alt_fw_paths to correctly split off variable length
extensions, and enable alt firmware lookups for the CLM blob firmware
requests.
Apple platforms have per-board CLM blob files.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Sun, 26 Dec 2021 13:04:09 +0000 (22:04 +0900)]
dt-bindings: net: bcm4329-fmac: Add Apple properties & chips
This binding is currently used for SDIO devices, but these chips are
also used as PCIe devices on DT platforms and may be represented in the
DT. Re-use the existing binding and add chip compatibles used by Apple
T2 and M1 platforms (the T2 ones are not known to be used in DT
platforms, but we might as well document them).
Then, add properties required for firmware selection and calibration on
M1 machines.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Fri, 7 Jan 2022 03:30:46 +0000 (12:30 +0900)]
brcmfmac: of: Use devm_kstrdup for board_type & check for errors
This was missing a NULL check, and we can collapse the strlen/alloc/copy
into a devm_kstrdup().
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:43:03 +0000 (17:43 +0900)]
brcmfmac: pcie: Read the console on init and shutdown
This allows us to get console messages if the firmware crashed during
early init, or if an operation failed and we're about to shut down.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Sat, 25 Dec 2021 15:24:02 +0000 (00:24 +0900)]
brcmfmac: fwil: Constify iovar name arguments
Make all the iovar name arguments const char * instead of just char *.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:44:00 +0000 (17:44 +0900)]
brcmfmac: pcie: Fix crashes due to early IRQs
The driver was enabling IRQs before the message processing was
initialized. This could cause IRQs to come in too early and crash the
driver. Instead, move the IRQ enable and hostready to a bus preinit
function, at which point everything is properly initialized.
Fixes:
9e37f045d5e7 ("brcmfmac: Adding PCIe bus layer support.")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:39:28 +0000 (17:39 +0900)]
brcmfmac: pcie: Replace brcmf_pcie_copy_mem_todev with memcpy_toio
The alignment check was wrong (e.g. & 4 instead of & 3), and the logic
was also inefficient if the length was not a multiple of 4, since it
would needlessly fall back to copying the entire buffer bytewise.
We already have a perfectly good memcpy_toio function, so just call that
instead of rolling our own copy logic here. brcmf_pcie_init_ringbuffers
was already using it anyway.
Fixes:
9e37f045d5e7 ("brcmfmac: Adding PCIe bus layer support.")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 10:32:16 +0000 (19:32 +0900)]
brcmfmac: pcie: Declare missing firmware files in pcie.c
Move one of the declarations from sdio.c to pcie.c, since it makes no
sense in the former (SDIO support is optional), and add missing ones.
Fixes:
75729e110e68 ("brcmfmac: expose firmware config files through modinfo")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Fri, 7 Jan 2022 02:41:49 +0000 (11:41 +0900)]
brcmfmac: firmware: Do not crash on a NULL board_type
This unbreaks support for USB devices, which do not have a board_type
to create an alt_path out of and thus were running into a NULL
dereference.
Fixes:
5ff013914c62 ("brcmfmac: firmware: Allow per-board firmware binaries")
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Mon, 3 Jan 2022 06:07:58 +0000 (15:07 +0900)]
brcmfmac: firmware: Allocate space for default boardrev in nvram
If boardrev is missing from the NVRAM we add a default one, but this
might need more space in the output buffer than was allocated. Ensure
we have enough padding for this in the buffer.
Fixes:
46f2b38a91b0 ("brcmfmac: insert default boardrev in nvram data if missing")
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:44:51 +0000 (17:44 +0900)]
brcmfmac: pcie: Release firmwares in the brcmf_pcie_setup error path
This avoids leaking memory if brcmf_chip_get_raminfo fails. Note that
the CLM blob is released in the device remove path.
Fixes:
82f93cf46d60 ("brcmfmac: get chip's default RAM info during PCIe setup")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Tue, 21 Dec 2021 08:07:40 +0000 (17:07 +0900)]
pcie-apple: Fix MSI handling for new phandles
To be added to AICv2 patchset...
Signed-off-by: Hector Martin <marcan@marcan.st>
Martin Povišer [Sat, 20 Nov 2021 20:06:06 +0000 (21:06 +0100)]
ASoC: cs42l42: Bypass device ID check
The cs42l42 driver is also applicable to the cs42l83 part.
Martin Povišer [Sat, 20 Nov 2021 20:06:06 +0000 (21:06 +0100)]
HACK: ASoC: cs42l42: Disable regcache
There's some issue that has yet to be pinned down.
Martin Povišer [Sat, 20 Nov 2021 20:06:06 +0000 (21:06 +0100)]
HACK: ASoC: tas2770: Set no of channels to 1
Martin Povišer [Sat, 20 Nov 2021 20:06:06 +0000 (21:06 +0100)]
ASoC: tas2770: Set correct FSYNC polarity
Fix setting of FSYNC polarity for DAI formats other than I2S. Also
add support for polarity inversion.
Signed-off-by: Martin Povišer <povik@protonmail.com>
Martin Povišer [Sat, 20 Nov 2021 20:06:06 +0000 (21:06 +0100)]
ASoC: apple-mca: Add platform driver for Apple SoCs
Add ASoC platform driver for the MCA block found on Apple SoCs
from the "Apple Silicon" family.
Martin Povišer [Sat, 20 Nov 2021 20:06:06 +0000 (21:06 +0100)]
dt-bindings: dma: Add apple,admac binding
The Audio DMA Controller (ADMAC) is used to load and store audio
samples from/to system memory. It is present on Apple SoCs from
the "Apple Silicon" family.
Signed-off-by: Martin Povišer <povik@protonmail.com>
Martin Povišer [Sat, 20 Nov 2021 20:06:06 +0000 (21:06 +0100)]
dmaengine: apple-admac: Add Apple ADMAC driver
Add driver for Audio DMA Controller present on Apple SoCs
from the "Apple Silicon" family.
Martin Povišer [Sat, 20 Nov 2021 20:06:06 +0000 (21:06 +0100)]
clk: clk-apple-nco: Add driver for Apple NCO
Add a common clock driver for NCO blocks found on Apple SoCs where they
are typically the generators of audio clocks.
Signed-off-by: Martin Povišer <povik@protonmail.com>
Martin Povišer [Wed, 8 Dec 2021 19:42:35 +0000 (20:42 +0100)]
dt-bindings: clock: Add Apple NCO
The NCO block found on Apple SoCs is a programmable clock generator
performing fractional division of a high frequency input clock.
Signed-off-by: Martin Povišer <povik@protonmail.com>
Hector Martin [Thu, 9 Dec 2021 12:55:49 +0000 (21:55 +0900)]
spi: apple: Add driver for Apple SPI controller
This SPI controller is present in Apple SoCs such as the M1 (t8103) and
M1 Pro/Max (t600x). It is a relatively straightforward design with two
16-entry FIFOs, arbitrary transfer sizes (up to 2**32 - 1) and fully
configurable word size up to 32 bits. It supports one hardware CS line
which can also be driven via the pinctrl/GPIO driver instead, if
desired. TX and RX can be independently enabled.
There are a surprising number of knobs for tweaking details of the
transfer, most of which we do not use right now. Hardware CS control
is available, but we haven't found a way to make it stay low across
multiple logical transfers, so we just use software CS control for now.
There is also a shared DMA offload coprocessor that can be used to handle
larger transfers without requiring an IRQ every 8-16 words, but that
feature depends on a bunch of scaffolding that isn't ready to be
upstreamed yet, so leave it for later.
The hardware shares some register bit definitions with spi-s3c24xx which
suggests it has a shared legacy with Samsung SoCs, but it is too
different to warrant sharing a driver.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Sun, 12 Dec 2021 02:46:33 +0000 (11:46 +0900)]
dt-bindings: spi: apple,spi: Add binding for Apple SPI controllers
The Apple SPI controller is present in SoCs such as the M1 (t8103) and
M1 Pro/Max (t600x). This controller uses one IRQ and one clock, and
doesn't need any special properties, so the binding is trivial.
Signed-off-by: Hector Martin <marcan@marcan.st>
Hector Martin [Sun, 12 Dec 2021 03:28:41 +0000 (12:28 +0900)]
MAINTAINERS: Add apple-spi driver & binding files
This Apple SPI controller is present on Apple ARM SoCs (t8103/t6000).
Splitting this change from the binding/driver commits to avoid merge
conflicts with other things touching this section, as usual.
Signed-off-by: Hector Martin <marcan@marcan.st>
Sven Peter [Thu, 9 Dec 2021 16:22:55 +0000 (17:22 +0100)]
WIP: nvme-apple: add initial Apple SoC NVMe driver
Signed-off-by: Sven Peter <sven@svenpeter.dev>