linux-stable/drivers/i2c
Hans de Goede 9c71f896bb i2c: i801: Fix Failed to allocate irq -2147483648 error
commit 6e0c9507bf upstream.

On Apollo Lake devices the BIOS does not set up IRQ routing for the i801
SMBUS controller IRQ, so we end up with dev->irq set to IRQ_NOTCONNECTED.

Detect this and do not try to use the irq in this case silencing:
i801_smbus 0000:00:1f.1: Failed to allocate irq -2147483648: -107

BugLink: https://communities.intel.com/thread/114759
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-05 11:26:33 +01:00
..
algos i2c: algo-bit: add support for I2C_M_STOP 2017-06-23 20:45:43 +02:00
busses i2c: i801: Fix Failed to allocate irq -2147483648 error 2017-12-05 11:26:33 +01:00
muxes License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
i2c-boardinfo.c i2c: allow attaching IRQ resources to i2c_board_info 2017-04-01 09:36:19 -07:00
i2c-core-acpi.c i2c: core: Allow empty id_table in ACPI case as well 2017-07-31 15:50:33 +02:00
i2c-core-base.c i2c: core: Make comment about I2C table requirement to reflect the code 2017-08-14 21:33:46 +02:00
i2c-core-of.c i2c: Convert to using %pOF instead of full_name 2017-07-31 17:19:35 +02:00
i2c-core-slave.c i2c: break out slave support into separate file 2017-05-31 21:01:03 +02:00
i2c-core-smbus.c i2c: break out smbus support into separate file 2017-05-31 21:01:03 +02:00
i2c-core.h i2c: core: Allow empty id_table in ACPI case as well 2017-07-31 15:50:33 +02:00
i2c-dev.c i2c: fix kernel memory disclosure in dev interface 2017-01-12 20:06:10 +01:00
i2c-mux.c i2c: mux: only print failure message on error 2017-05-15 18:49:11 +02:00
i2c-slave-eeprom.c i2c: Drop owner assignment from i2c_driver 2015-08-10 08:37:35 +02:00
i2c-smbus.c i2c: use an IRQ to report Host Notify events, not alert 2016-11-24 16:22:06 +01:00
i2c-stub.c i2c: stub: fix build warning regression 2017-06-15 23:22:11 +02:00
Kconfig Merge branch 'i2c/for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2016-12-15 12:56:35 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00