linux.git/drivers/gpio, branch vsnprintf

gpio: idio-16: Actually make use of the GPIO_IDIO_16 symbol namespace

2024-12-10T10:38:57+00:00

DEFAULT_SYMBOL_NAMESPACE must already be defined when 
is included. So move the define above the include block.

Fixes: b9b1fc1ae119 ("gpio: idio-16: Introduce the ACCES IDIO-16 GPIO library module")
Signed-off-by: Uwe Kleine-König 
Acked-by: William Breathitt Gray 
Link: https://lore.kernel.org/r/20241203172631.1647792-2-u.kleine-koenig@baylibre.com
Signed-off-by: Bartosz Golaszewski

Merge tag 'v6.13-rc2' into gpio/for-current

2024-12-10T10:38:38+00:00

Linux 6.13-rc2

gpio: graniterapids: Fix GPIO Ack functionality

2024-12-10T09:35:13+00:00

Interrupt status (GPI_IS) register is cleared by writing 1 to it, not 0.

Cc: stable@vger.kernel.org
Signed-off-by: Alan Borzeszkowski 
Signed-off-by: Mika Westerberg 
Acked-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20241204070415.1034449-8-mika.westerberg@linux.intel.com
Signed-off-by: Bartosz Golaszewski

gpio: graniterapids: Check if GPIO line can be used for IRQs

2024-12-10T09:35:13+00:00

GPIO line can only be used as interrupt if its INTSEL register is
programmed by the BIOS.

Cc: stable@vger.kernel.org
Signed-off-by: Alan Borzeszkowski 
Signed-off-by: Mika Westerberg 
Acked-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20241204070415.1034449-7-mika.westerberg@linux.intel.com
Signed-off-by: Bartosz Golaszewski

gpio: graniterapids: Determine if GPIO pad can be used by driver

2024-12-10T09:35:13+00:00

Add check of HOSTSW_MODE bit to determine if GPIO pad can be used by the
driver.

Cc: stable@vger.kernel.org
Signed-off-by: Alan Borzeszkowski 
Signed-off-by: Mika Westerberg 
Acked-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20241204070415.1034449-6-mika.westerberg@linux.intel.com
Signed-off-by: Bartosz Golaszewski

gpio: graniterapids: Fix invalid RXEVCFG register bitmask

2024-12-10T09:35:13+00:00

Correct RX Level/Edge Configuration register (RXEVCFG) bitmask.

Cc: stable@vger.kernel.org
Signed-off-by: Shankar Bandal 
Signed-off-by: Alan Borzeszkowski 
Signed-off-by: Mika Westerberg 
Acked-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20241204070415.1034449-5-mika.westerberg@linux.intel.com
Signed-off-by: Bartosz Golaszewski

gpio: graniterapids: Fix invalid GPI_IS register offset

2024-12-10T09:35:13+00:00

Update GPI Interrupt Status register offset to correct value.

Cc: stable@vger.kernel.org
Signed-off-by: Shankar Bandal 
Signed-off-by: Alan Borzeszkowski 
Signed-off-by: Mika Westerberg 
Acked-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20241204070415.1034449-4-mika.westerberg@linux.intel.com
Signed-off-by: Bartosz Golaszewski

gpio: graniterapids: Fix incorrect BAR assignment

2024-12-10T09:35:12+00:00

Base Address of vGPIO MMIO register is provided directly by the BIOS
instead of using offsets. Update address assignment to reflect this
change in driver.

Cc: stable@vger.kernel.org
Signed-off-by: Alan Borzeszkowski 
Signed-off-by: Mika Westerberg 
Acked-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20241204070415.1034449-3-mika.westerberg@linux.intel.com
Signed-off-by: Bartosz Golaszewski

gpio: graniterapids: Fix vGPIO driver crash

2024-12-10T09:35:12+00:00

Move setting irq_chip.name from probe() function to the initialization
of "irq_chip" struct in order to fix vGPIO driver crash during bootup.

Crash was caused by unauthorized modification of irq_chip.name field
where irq_chip struct was initialized as const.

This behavior is a consequence of suboptimal implementation of
gpio_irq_chip_set_chip(), which should be changed to avoid
casting away const qualifier.

Crash log:
BUG: unable to handle page fault for address: ffffffffc0ba81c0
/#PF: supervisor write access in kernel mode
/#PF: error_code(0x0003) - permissions violation
CPU: 33 UID: 0 PID: 1075 Comm: systemd-udevd Not tainted 6.12.0-rc6-00077-g2e1b3cc9d7f7 #1
Hardware name: Intel Corporation Kaseyville RP/Kaseyville RP, BIOS KVLDCRB1.PGS.0026.D73.2410081258 10/08/2024
RIP: 0010:gnr_gpio_probe+0x171/0x220 [gpio_graniterapids]

Cc: stable@vger.kernel.org
Signed-off-by: Alan Borzeszkowski 
Signed-off-by: Mika Westerberg 
Acked-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20241204070415.1034449-2-mika.westerberg@linux.intel.com
Signed-off-by: Bartosz Golaszewski

gpio: ljca: Initialize num before accessing item in ljca_gpio_config

2024-12-06T18:04:42+00:00

With the new __counted_by annocation in ljca_gpio_packet, the "num"
struct member must be set before accessing the "item" array. Failing to
do so will trigger a runtime warning when enabling CONFIG_UBSAN_BOUNDS
and CONFIG_FORTIFY_SOURCE.

Fixes: 1034cc423f1b ("gpio: update Intel LJCA USB GPIO driver")
Cc: stable@vger.kernel.org
Signed-off-by: Haoyu Li 
Link: https://lore.kernel.org/stable/20241203141451.342316-1-lihaoyu499%40gmail.com
Signed-off-by: Bartosz Golaszewski