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The driver auto-loads based on the DMI modaliases and this platform
modalias is not necessary and broken:
1. Not necessary since the driver itself creates the platform_device,
so it is already loaded when the modalias might be used
2. From a quick scan of the code it does not create any platform-devices
called "platform:pcengines-apuv2"
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230313130241.778146-1-hdegoede@redhat.com
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gpio-lookup tables
The gpiod_lookup_table.table passed to gpiod_add_lookup_table() must
be terminated with an empty entry, add this.
Note we have likely been getting away with this not being present because
the GPIO lookup code first matches on the dev_id, causing most lookups to
skip checking the table and the lookups which do check the table will
find a matching entry before reaching the end. With that said, terminating
these tables properly still is obviously the correct thing to do.
Fixes: f8eb0235f659 ("x86: pcengines apuv2 gpio/leds/keys platform driver")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210806115515.12184-1-hdegoede@redhat.com
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AMD_FCH_GPIO_REG_GPIO55_DEVSLP0
Schematics show that the GPIO number is 55 (not 59). Trivial typo.
Signed-off-by: Ed Wildgoose <lists@wildgooses.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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This reverts commit 5037d4ddda31c2dbbb018109655f61054b1756dc.
Explanation why this does not work:
This change connects the simswap to the LED subsystem of the kernel.
From my point of view, it's nonsense. If we do it this way, then this
can be switched relatively easily via the LED subsystem (trigger:
none/default-on) and that is dangerous! If this is used, it would be
unfavorable, since there is also another trigger (trigger:
heartbeat/netdev).
Therefore, this simswap GPIO should remain in the GPIO
subsystem and be switched via it and not be connected to the LED
subsystem. To avoid the problems mentioned above. The LED subsystem is
not made for this and it is not a good compromise, but rather dangerous.
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Mainly does:
- capitalize gpio and bios to GPIO and BIOS
- capitalize beginning of comments
- add periods in multi-line comments
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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GPIO stuff on APUv4 seems to be the same as on APUv2, so we just
need to match on DMI data.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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The mapping entry has to hold the GPIO line index instead of
controller's register number.
Fixes: 5037d4ddda31 ("platform/x86: pcengines-apuv2: wire up simswitch gpio as led")
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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The APU3+ boards have two SIM sockets, while only one of them
can be routed to the mpcie slots at a time. Selection is done
via simswap gpio.
We currently don't have a fitting subsystem for those cases yet,
so just wire it up to a LED for the time being. While this isn't
really semantically correct, it's a good compromise.
Signed-off-by: Enrico Weigelt <info@metux.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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On APUx we have also mpcie2/mpcie3 reset pins. To make it possible to reset
the ports from the userspace, add the definition to this platform
device. The gpio can then be exported by the legancy gpio subsystem to
toggle the mpcie reset pin.
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
Acked-by: Enrico Weigelt <info@metux.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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The keycode KEY_RESTART is more appropriate for the front button,
as most people use it for things like restart or factory reset.
Signed-off-by: Enrico Weigelt <info@metux.net>
Fixes: f8eb0235f659 ("x86: pcengines apuv2 gpio/leds/keys platform driver")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Only first MODULE_SOFTDEP statement is handled per module.
Multiple dependencies must be expressed in a single statement.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: "Enrico Weigelt, metux IT consult" <info@metux.net>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andy@infradead.org>
[andy: massaged commit message]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Fix sparse warnings:
drivers/platform/x86/pcengines-apuv2.c:80:27: warning: symbol 'gpios_led_table' was not declared. Should it be static?
drivers/platform/x86/pcengines-apuv2.c:113:27: warning: symbol 'gpios_key_table' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-By: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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The driver was newly introduced but the version that got merged
produces a harmless compiler warning:
drivers/platform/x86/pcengines-apuv2.c: In function 'apu_board_init':
drivers/platform/x86/pcengines-apuv2.c:211:6: error: unused variable 'rc' [-Werror=unused-variable]
Remove the evidently useless variable.
Fixes: f8eb0235f659 ("x86: pcengines apuv2 gpio/leds/keys platform driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-By: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Driver for PCengines APUv2 board's front LEDs and Button,
which are attached to AMD PCH GPIOs. Due to lack of dedicated
ACPI entry, detecting the board via DMI.
Cc: linux-gpio@vger.kernel.org
Cc: linus.walleij@linaro.org
Cc: bgolaszewski@baylibre.com
Cc: dvhart@infradead.org
Cc: platform-driver-x86@vger.kernel.org
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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