Commit Graph

6 Commits

Author SHA1 Message Date
Arnd Bergmann
b24e88b42d platform: cznic: use ffs() instead of __bf_shf()
__bf_shf() on a 64-bit variable causes a link failure during
compile-testing:

drivers-platform-cznic-turris-omnia-mcu-gpio.c:(.text):undefined-reference-to-__ffsdi2

Open-code this using ffs()-1, which has the same result but avoids
the library call.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-04-04 16:02:59 +02:00
Marek Behún
ee7f8ed729 platform: cznic: turris-omnia-mcu: Refactor requesting MCU interrupt
Refactor the code that gets and requests the TRNG MCU interrupt in the
TRNG part of the driver into a helper function and put it into the GPIO
part of the driver.

Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-03-20 17:56:56 +01:00
Marek Behún
f335e01577 platform: cznic: turris-omnia-mcu: Rename variable holding GPIO line names
Rename the `omnia_mcu_gpio_templates` variable to
`omnia_mcu_gpio_names`. The array contained templates for the names
during the development of the driver, but the template prefix `gpio%u.`
was dropped before the driver was merged, since this functionality was
broken in gpiolib.

Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-11-12 16:05:16 +01:00
Al Viro
5f60d5f6bb move asm/unaligned.h to linux/unaligned.h
asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.

auto-generated by the following:

for i in `git grep -l -w asm/unaligned.h`; do
	sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
	sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
2024-10-02 17:23:23 -04:00
Marek Behún
41bb142a40 platform: cznic: turris-omnia-mcu: Add support for MCU provided TRNG
Add support for true random number generator provided by the MCU.
New Omnia boards come without the Atmel SHA204-A chip. Instead the
crypto functionality is provided by new microcontroller, which has
a TRNG peripheral.

Signed-off-by: Marek Behún <kabel@kernel.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20240701113010.16447-7-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-07-01 15:46:37 +02:00
Marek Behún
dfa556e45a platform: cznic: turris-omnia-mcu: Add support for MCU connected GPIOs
Add support for GPIOs connected to the MCU on the Turris Omnia board.

This includes:
- front button pin
- enable pins for USB regulators
- MiniPCIe / mSATA card presence pins in MiniPCIe port 0
- LED output pins from WAN ethernet PHY, LAN switch and MiniPCIe ports
- on board revisions 32+ also various peripheral resets and another
  voltage regulator enable pin

Signed-off-by: Marek Behún <kabel@kernel.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20240701113010.16447-4-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-07-01 15:46:36 +02:00