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Statically allocated array of pointed to hwmon_channel_info can be made
const for safety.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Exit immediately if devm_hwmon_device_register_with_info()
fails since registering a delayed work whould be useless
in such a case anyway.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20211211184449.18211-1-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Use hwmon_notify_event() to make the code easier to
understand and to also generate udev events.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20210905190049.11381-1-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Few drivers implement remove call-back only for ensuring a delayed
work gets cancelled prior driver removal. Clean-up these by switching
to use devm_delayed_work_autocancel() instead.
This change is compile-tested only. All testing is appreciated.
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/4830f52d46278ea1c92ad7252f6050540346d8b7.1616506559.git.matti.vaittinen@fi.rohmeurope.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The email address listed in MODULE_AUTHOR() will be disabled in the
near future. Replace it with my private one.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/1565720249-6549-2-git-send-email-wahrenst@gmx.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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The HWMON_CHANNEL_INFO macro simplifies the code, reduces the likelihood
of errors, and makes the code easier to read.
The conversion was done automatically with coccinelle. The semantic patch
used to make this change is as follows.
@r@
initializer list elements;
identifier i;
@@
-u32 i[] = {
- elements,
- 0
-};
@s@
identifier r.i,j,ty;
@@
-struct hwmon_channel_info j = {
- .type = ty,
- .config = i,
-};
@script:ocaml t@
ty << s.ty;
elements << r.elements;
shorter;
elems;
@@
shorter :=
make_ident (List.hd(List.rev (Str.split (Str.regexp "_") ty)));
elems :=
make_ident
(String.concat ","
(List.map (fun x -> Printf.sprintf "\n\t\t\t %s" x)
(Str.split (Str.regexp " , ") elements)))
@@
identifier s.j,t.shorter;
identifier t.elems;
@@
- &j
+ HWMON_CHANNEL_INFO(shorter,elems)
This patch does not introduce functional changes. Many thanks to
Julia Lawall for providing the semantic patch.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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In case an under-voltage happens before probing the driver wont
write the critical warning into the kernel log. So don't init
of last_throttled during probe and fix this issue.
Fixes: 74d1e007915f ("hwmon: Add support for RPi voltage sensor")
Reported-by: "Noralf Trønnes" <noralf@tronnes.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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The raspberrypi-hwmon driver doesn't automatically load, although it does work
when loaded, by adding the alias it auto loads as expected when built as a
module. Tested on RPi2/RPi3 on 32 bit kernel and RPi3B+ on aarch64 with
Fedora 28 and a patched 4.18 RC kernel.
Fixes: 3c493c885cf ("hwmon: Add support for RPi voltage sensor")
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
CC: Stefan Wahren <stefan.wahren@i2se.com>
CC: Eric Anholt <eric@anholt.net>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Currently there is no easy way to detect undervoltage conditions on a
remote Raspberry Pi. This hwmon driver retrieves the state of the
undervoltage sensor via mailbox interface. The handling based on
Noralf's modifications to the downstream firmware driver. In case of
an undervoltage condition only an entry is written to the kernel log.
CC: "Noralf Trønnes" <noralf@tronnes.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Guenter Roeck <linux@roeck-us.net>
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