kernel/linux.git/drivers/acpi/ec.c, branch v5.15.7

Merge branches 'acpi-ec', 'acpi-apei', 'acpi-soc' and 'acpi-misc'

2021-06-29T13:51:25+00:00

* acpi-ec: ACPI: EC: trust DSDT GPE for certain HP laptop ACPI: EC: Make more Asus laptops use ECDT _GPE * acpi-apei: ACPI: APEI: fix synchronous external aborts in user-mode ACPI: APEI: Don't warn if ACPI is disabled * acpi-soc: ACPI: LPSS: Use kstrtol() instead of simple_strtol() * acpi-misc: ACPI: NVS: fix doc warnings in nvs.c ACPI: NUMA: fix typo in a comment ACPI: OSL: Use DEFINE_RES_IO_NAMED() to simplify code ACPI: bus: Call kobject_put() in acpi_init() error path ACPI: bus: Remove unneeded assignment ACPI: configfs: Replace ACPI_INFO() with pr_debug() ACPI: ipmi: Remove address space handler in error path ACPI: event: Remove redundant initialization of local variable ACPI: sbshc: Fix fall-through warning for Clang

ACPI: EC: trust DSDT GPE for certain HP laptop

2021-06-21T16:48:22+00:00

On HP Pavilion Gaming Laptop 15-cx0xxx, the ECDT EC and DSDT EC share the same port addresses but different GPEs. And the DSDT GPE is the right one to use. The current code duplicates DSDT EC with ECDT EC if the port addresses are the same, and uses ECDT GPE as a result, which breaks this machine. Introduce a new quirk for the HP laptop to trust the DSDT GPE, and avoid duplicating even if the port addresses are the same. Link: https://bugzilla.kernel.org/show_bug.cgi?id=209989 Reported-and-tested-by: Shao Fu, Chen Signed-off-by: Zhang Rui Signed-off-by: Rafael J. Wysocki

ACPI: scan: Extend acpi_walk_dep_device_list()

2021-06-07T14:45:05+00:00

The acpi_walk_dep_device_list() function is not as generic as its name implies, serving only to decrement the dependency count for each dependent device of the input. Extend it to accept a callback which can be applied to all the dependencies in acpi_dep_list. Replace all existing calls to the function with calls to a wrapper, passing a callback that applies the same dependency reduction. Reviewed-by: Andy Shevchenko Acked-by: Maximilian Luz # for platform/surface parts Signed-off-by: Daniel Scally [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki

ACPI: EC: Make more Asus laptops use ECDT _GPE

2021-05-21T17:17:20+00:00

More ASUS laptops have the _GPE define in the DSDT table with a different value than the _GPE number in the ECDT. This is causing media keys not working on ASUS X505BA/BP, X542BA/BP Add model info to the quirks list. Signed-off-by: Chris Chiu Signed-off-by: Jian-Hong Pan Signed-off-by: Rafael J. Wysocki

ACPI: EC: Clean up status flags checks in advance_transaction()

2020-11-23T19:01:01+00:00

Eliminate comparisons from the status flags checks in advance_transaction() (especially from the one that is only correct, because the value of the flag checked in there is 1) and rearrange the code for more clarity while at it. No intentional functional impact. Signed-off-by: Rafael J. Wysocki

ACPI: EC: Untangle error handling in advance_transaction()

2020-11-23T19:00:42+00:00

Introduce acpi_ec_spurious_interrupt() for recording spurious interrupts and use it for error handling in advance_transaction(), drop the (now redundant) original error handling block from there along with a frew goto statements that are not necessary any more. No intentional functional impact. Signed-off-by: Rafael J. Wysocki

ACPI: EC: Simplify error handling in advance_transaction()

2020-11-23T19:00:34+00:00

Notice that the value of t in advance_transaction() does not change after its initialization and: - Initialize t upfront (and rearrange the definitions of local variables while at it). - Check it against NULL in a block executed when it is NULL. - Skip error handling for t == NULL, because a valid pointer value of t is required for the error handling. - Drop the (now redundant) check of t against NULL from the error handling block and reduce the indentation level in there. No intentional functional impact. Signed-off-by: Rafael J. Wysocki

ACPI: EC: Rename acpi_ec_is_gpe_raised()

2020-11-23T19:00:25+00:00

Rename acpi_ec_is_gpe_raised() into acpi_ec_gpe_status_set(), update its callers accordingly and drop the ternary operator (which isn't really necessary in there) from it. No intentional functional impact. Signed-off-by: Rafael J. Wysocki

ACPI: EC: Fold acpi_ec_clear_gpe() into its caller

2020-11-23T19:00:18+00:00

Fold acpi_ec_clear_gpe() which is only used in one place into its caller and clean up comments related to that function while at it. No intentional functional impact. Signed-off-by: Rafael J. Wysocki

ACPI: EC: Eliminate in_interrupt() usage

2020-11-23T12:39:45+00:00

advance_transaction() is using in_interrupt() to distinguish between an invocation from the interrupt handler and an invocation from another part of the stack. This looks misleading because chains like acpi_update_all_gpes() -> acpi_ev_gpe_detect() -> acpi_ev_detect_gpe() -> acpi_ec_gpe_handler() should probably also behave as if they were called from an interrupt handler. Replace in_interrupt() usage with a function parameter. Set this parameter to `true' if invoked from an interrupt handler (acpi_ec_gpe_handler() and acpi_ec_irq_handler()) and `false' otherwise. Signed-off-by: Sebastian Andrzej Siewior [ rjw: Subject edits ] Signed-off-by: Rafael J. Wysocki