There are several drivers making use of ACPI _DSM method to detect
and invoke device specific methods. Currently every driver has
implemented its private version to support ACPI _DSM method.
So this patch introduces three helper functions to support ACPI _DSM
method, which will be used to replace open-coded versions. It helps
to simplify code and improve code readability.
It also includes some bugfixes for TPM/nouveau drivers.
It applies to the mainstream kernel on top of
b0031f2 Merge tag 's2mps11-build' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Due to lacking of hardware platform, I have only tested the ACPI _DSM
helper functions and TPM related changes, but haven't tested changes to
other drivers yet. So appreciate help to review and test these patches.
V1->V2
1) fix an issue in initializing acpi_object structure
Jiang Liu (13):
ACPI: introduce helper interfaces to support ACPI _DSM method
ACPI, extlog: replace open-coded _DSM specific code with helper
functions
PCI, pci-label: release allocated ACPI object on error recovery path
ACPI, PCI: replace open-coded _DSM specific code with helper
functions
PCI, pci-label: treat PCI label with index 0 as valid label
ACPI, TPM: fix memory leak when walking ACPI namespace
ACPI, TPM: matching node name instead of full path when searching for
TPM device
ACPI, TPM: replace open-coded _DSM specific code with helper
functions
ACPI, TPM: detecting PPI features by checking availability of _DSM
functions
ACPI, i2c-hid: replace open-coded _DSM specific code with helper
functions
ACPI, i915: replace open-coded _DSM specific code with helper
functions
nouveau: fix memory leak in ACPI _DSM related code
ACPI, nouveau: replace open-coded _DSM specific code with helper
functions
drivers/acpi/acpi_extlog.c | 61 +---
drivers/acpi/utils.c | 98 ++++++
drivers/char/tpm/tpm_ppi.c | 406 +++++++++---------------
drivers/gpu/drm/i915/intel_acpi.c | 144 ++-------
drivers/gpu/drm/nouveau/core/subdev/mxm/base.c | 48 +--
drivers/gpu/drm/nouveau/nouveau_acpi.c | 134 +++-----
drivers/hid/i2c-hid/i2c-hid.c | 26 +-
drivers/pci/pci-label.c | 129 +++-----
include/acpi/acpi_bus.h | 26 ++
9 files changed, 406 insertions(+), 666 deletions(-)
--
1.7.10.4
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