Linaro-acpi

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[PATCH v4 0/5] Hardware Reduced Mode Cleanup for ACPI

by al.stone＠linaro.org

From: Al Stone <al.stone(a)linaro.org> This series of patches starts with Hanjun's patch to create a kernel config item for CONFIG_ACPI_REDUCED_HARDWARE [0]. Building on that, I then reviewed all of the code that touched any of several fields in the FADT that the OSPM is supposed to ignore when ACPI is in Hardware Reduced mode [1]. Any time there was a use of one of the fields to be ignored, I evaluated whether or not the code was implementing Hardware Reduced mode correctly. Similarly, for each the flags in the FADT flags field that are to be ignored in Hardware Reduced mode, the kernel code was again scanned for proper usage. The remainder of the patches are to fix all of the situations I could find where the kernel would not behave correctly in this ACPI mode. These seem to work just fine on the RTSM model for ARMv7, both with and without ACPI enabled, and with and without ACPI_REDUCED_HARDWARE enabled; similarly for the FVP model for ARMv8. The patches for ACPI on ARM hardware have been submitted elsewhere but they presume that reduced HW mode is functioning correctly. In the meantime, there's no way I can think of to test all possible scenarios so feedback would be greatly appreciated. [0] List at https://wiki.linaro.org/LEG/Engineering/Kernel/ACPI/AcpiReducedHw#Section_5… [1] Please see the ACPI Specification v5.0 for details on Hardware Reduced mode (sections 3.11.1, 4.1, 5.2.9, at a minimum). Changes for v4: -- Given the current state of ACPICA, disable CONFIG_ACPI_REDUCED_HARDWARE for use on anything other than ARM. -- Replaced #ifdefs with run-time checking for hardware reduced mode, whenever possible Changes for v3: -- Modified enabling ACPI_REDUCED_HARDWARE in ACPICA when using kernel config item CONFIG_ACPI_REDUCED_HARDWARE; now consistent with ACPICA code base where needed -- Enable X86 for CONFIG_ACPI_REDUCED_HARDWARE -- Minimize bus master reload patching -- Remove unneeded patch for dmi_check_system() (was 4/6) -- Correct the patch for removing unneeded map/unmap of FADT fields Changes for v2: -- Remove patch that was outside of reduced HW mode changes -- Simplify CONFIG_ACPI_REDUCED_HARDWARE in Kconfig -- Simplify use of CONFIG_ACPI_REDUCED_HARDWARE in #ifdefs -- Ensure changelogs are present -- Combine and simplify previous patches 8 & 10 Al Stone (5): ACPI: introduce CONFIG_ACPI_REDUCED_HARDWARE to enable this ACPI mode ACPI: bus master reload not supported in reduced HW mode ACPI: HW reduced mode does not allow use of the FADT sci_interrupt field ACPI: in HW reduced mode, using FADT PM information is not allowed. ACPI: do not map/unmap memory regions for FADT entries in reduced HW mode drivers/acpi/Kconfig | 8 ++++++++ drivers/acpi/bus.c | 30 ++++++++++++++++-------------- drivers/acpi/osl.c | 38 +++++++++++++++++++------------------- drivers/acpi/pci_link.c | 2 ++ drivers/acpi/processor_idle.c | 14 ++++++++++++-- include/acpi/platform/aclinux.h | 6 ++++++ 6 files changed, 63 insertions(+), 35 deletions(-) -- 1.8.3.1

11 years, 4 months

[RFC part1 PATCH 0/7] Make ACPI core running on ARM64

by Hanjun Guo

This is the first part of making ACPI core running on ARM. PCI is optional on ARM64 but ACPI is dependent on PCI now, so in the first patch we try to make ACPI can be running without PCI. _PDC is requred for ACPI processor_core.c, but its related code is a little bit x86/ia64 dependent, so I rework _PDC related staff to make it more arch independent, and then introduce the skeleton of _PDC related for ARM64, it should be fully implemented after ACPI spec is ready for processor idle control. After that, arm-core.c is introduced so we can get ACPI table from UEFI, then we can parsed for SMP initialisation, GIC initialisation and for ACPI drivers. This patch set is based on: git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git origin/linux-next branch and plus Al Stone's v2 reduced hardware profile patch. Hanjun Guo (7): ACPI: Make ACPI core running without PCI on ARM64 ARM64 : Add dummy asm/cpu.h ACPI / processor_core: Rework _PDC related stuff to make it more arch-independent ARM64 / ACPI: Introduce the skeleton of _PDC related for ARM64 ARM64 / ACPI: Introduce arm_core.c and its related head file ARM64 / ACPI: Introduce lowlevel suspend function ARM64 / ACPI: Enable ARM64 in Kconfig arch/arm64/Kconfig | 2 + arch/arm64/include/asm/acpi.h | 93 +++++++++++++++ arch/arm64/include/asm/cpu.h | 25 ++++ arch/arm64/include/asm/processor.h | 11 ++ arch/arm64/kernel/process.c | 5 + arch/arm64/kernel/setup.c | 8 ++ drivers/acpi/Kconfig | 12 +- drivers/acpi/Makefile | 4 +- drivers/acpi/internal.h | 5 + drivers/acpi/osl.c | 16 +++ drivers/acpi/plat/Makefile | 1 + drivers/acpi/plat/arm-core.c | 226 ++++++++++++++++++++++++++++++++++++ drivers/acpi/processor_core.c | 27 ++--- drivers/acpi/reboot.c | 47 +++++--- drivers/pnp/pnpacpi/rsparser.c | 2 + 15 files changed, 452 insertions(+), 32 deletions(-) create mode 100644 arch/arm64/include/asm/acpi.h create mode 100644 arch/arm64/include/asm/cpu.h create mode 100644 drivers/acpi/plat/Makefile create mode 100644 drivers/acpi/plat/arm-core.c -- 1.7.9.5

11 years, 4 months

[PATCHv2] rtsm_ve-aemv8a: correct GIC addresses in APIC table

by Graeme Gregory

The addresses were not updated from the change to the FVP model. Correct the addresses. Boot tested with patch series from Hanjun Guo Signed-off-by: Graeme Gregory <graeme.gregory(a)linaro.org> --- platforms/rtsm_ve-aemv8a.acpi/apic.asl | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/platforms/rtsm_ve-aemv8a.acpi/apic.asl b/platforms/rtsm_ve-aemv8a.acpi/apic.asl index c782e70..81351c3 100644 --- a/platforms/rtsm_ve-aemv8a.acpi/apic.asl +++ b/platforms/rtsm_ve-aemv8a.acpi/apic.asl @@ -44,7 +44,7 @@ [0004] Asl Compiler ID : "INTL" [0004] Asl Compiler Revision : 20110623 -[0004] Local Apic Address : 2C002000 +[0004] Local Apic Address : 2C000000 [0004] Flags (decoded below) : 00000001 PC-AT Compatibility : 0 @@ -58,7 +58,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 /* this is the foundation model's GIC address */ +[0008] Base Address : 000000002C000000 /* armv8 FVP Base GIC address */ [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -70,7 +70,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -82,7 +82,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -94,7 +94,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -106,7 +106,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -118,7 +118,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -130,7 +130,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -142,12 +142,12 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0C [Generic Interrupt Distributor] [0001] Length : 18 [0002] Reserved : 0000 [0004] Local GIC Hardware ID : 00000000 -[0008] Base Address : 000000002C001000 /* armv8 foundation model's GIC distributor base addr */ +[0008] Base Address : 000000002F000000 /* armv8 FVP Base GIC distributor base addr */ [0004] Interrupt Base : 00000000 [0004] Reserved : 00000000 -- 1.8.4.2

11 years, 4 months

[PATCH] arm64: dts: remove gic from fvp acpi version

by Graeme Gregory

Patches to probe GIC from APIC table are now working. Signed-off-by: Graeme Gregory <graeme.gregory(a)linaro.org> --- arch/arm64/boot/dts/fvp-base-gicv2-psci-acpi.dts | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/arch/arm64/boot/dts/fvp-base-gicv2-psci-acpi.dts b/arch/arm64/boot/dts/fvp-base-gicv2-psci-acpi.dts index 3189f0e..d859a94 100644 --- a/arch/arm64/boot/dts/fvp-base-gicv2-psci-acpi.dts +++ b/arch/arm64/boot/dts/fvp-base-gicv2-psci-acpi.dts @@ -38,7 +38,6 @@ / { model = "FVP Base"; compatible = "arm,vfp-base", "arm,vexpress"; - interrupt-parent = <&gic>; #address-cells = <2>; #size-cells = <2>; @@ -113,16 +112,4 @@ <0x00000008 0x80000000 0 0x80000000>; */ }; - - gic: interrupt-controller@2f000000 { - compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic"; - #interrupt-cells = <3>; - #address-cells = <0>; - interrupt-controller; - reg = <0x0 0x2f000000 0 0x10000>, - <0x0 0x2c000000 0 0x2000>, - <0x0 0x2c010000 0 0x2000>, - <0x0 0x2c02F000 0 0x2000>; - interrupts = <1 9 0xf04>; - }; }; -- 1.8.4.2

11 years, 4 months

[PATCH] rtsm_ve-aemv8a: correct GIC addresses in APIC table

by Graeme Gregory

The addresses were not updated from the change to the FVP model. Correct the addresses. Boot tested with patch series from Hanjun Guo Signed-off-by: Graeme Gregory <graeme.gregory(a)linaro.org> --- platforms/rtsm_ve-aemv8a.acpi/apic.asl | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/platforms/rtsm_ve-aemv8a.acpi/apic.asl b/platforms/rtsm_ve-aemv8a.acpi/apic.asl index c782e70..b000068 100644 --- a/platforms/rtsm_ve-aemv8a.acpi/apic.asl +++ b/platforms/rtsm_ve-aemv8a.acpi/apic.asl @@ -44,7 +44,7 @@ [0004] Asl Compiler ID : "INTL" [0004] Asl Compiler Revision : 20110623 -[0004] Local Apic Address : 2C002000 +[0004] Local Apic Address : 2C000000 [0004] Flags (decoded below) : 00000001 PC-AT Compatibility : 0 @@ -58,7 +58,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 /* this is the foundation model's GIC address */ +[0008] Base Address : 000000002C000000 /* this is the foundation model's GIC address */ [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -70,7 +70,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -82,7 +82,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -94,7 +94,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -106,7 +106,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -118,7 +118,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -130,7 +130,7 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0B [Generic Interrupt Controller] [0001] Length : 28 @@ -142,12 +142,12 @@ [0004] Parking Protocol Version : 00000000 [0004] Performance Interrupt : 00000000 [0008] Parked Address : 0000000000000000 -[0008] Base Address : 000000002C002000 +[0008] Base Address : 000000002C000000 [0001] Subtable Type : 0C [Generic Interrupt Distributor] [0001] Length : 18 [0002] Reserved : 0000 [0004] Local GIC Hardware ID : 00000000 -[0008] Base Address : 000000002C001000 /* armv8 foundation model's GIC distributor base addr */ +[0008] Base Address : 000000002F000000 /* armv8 foundation model's GIC distributor base addr */ [0004] Interrupt Base : 00000000 [0004] Reserved : 00000000 -- 1.8.4.2

11 years, 4 months

[PATCH] rtsm_ve-aemv8a: Add ASL for vexpress sysreg

by naresh.bhat＠linaro.org

From: Naresh Bhat <naresh.bhat(a)linaro.org> Add ASL to support vexpress sysreg rtsm_ve-aemv8a platform. Signed-off-by: Naresh Bhat <naresh.bhat(a)linaro.org> --- platforms/rtsm_ve-aemv8a.acpi/dsdt.asl | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl b/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl index 8cea035..bd15413 100644 --- a/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl +++ b/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl @@ -389,6 +389,18 @@ DefinitionBlock ( ,, , AddressRangeMemory, TypeStatic) }) + Device (SREG) { + Name (_HID, "LNRO0009") + Name (_UID, 0) + + Method (_CRS, 0x0, Serialized) { + Name (RBUF, ResourceTemplate() { + Memory32Fixed (ReadWrite, 0x1c010000, 0x1000) + }) + Return (RBUF) + } + } + Device (VIRT) { Name (_HID, "LNRO0005") Name (_UID, 0) -- 1.7.9.5

11 years, 4 months

[PATCH] ACPI: explicitly initialize a value to silence compiler warning

by al.stone＠linaro.org

From: Al Stone <al.stone(a)linaro.org> In acpi_processor_resume(), the variable resumed_bm_rld is being used without being initialized, so initialize it. Signed-off-by: Al Stone <al.stone(a)linaro.org> --- drivers/acpi/processor_idle.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 597cdab..86d11a6 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -213,7 +213,7 @@ static int acpi_processor_suspend(void) static void acpi_processor_resume(void) { - u32 resumed_bm_rld; + u32 resumed_bm_rld = 0; acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &resumed_bm_rld); if (resumed_bm_rld == saved_bm_rld) -- 1.8.3.1

11 years, 4 months

[PATCH 1/2] irq, irqdomain: Refactor irq_create_of_mapping function.

by Tomasz Nowicki

Move OF specific logic to OF irq.c file and make it more generic so acpi can use it too. Signed-off-by: Tomasz Nowicki <tomasz.nowicki(a)linaro.org> --- drivers/of/irq.c | 42 ++++++++++++++++++++++++++++++++++++++++++ include/linux/irqdomain.h | 3 +++ kernel/irq/irqdomain.c | 31 ++++++++++--------------------- 3 files changed, 55 insertions(+), 21 deletions(-) diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 786b0b4..2bac976 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -26,6 +26,48 @@ #include <linux/string.h> #include <linux/slab.h> + +/** + * irq_create_of_mapping - Look up for domain and map an interrupt given irq + * @irq_data: pointer to arguments structure + * + * This function looks for associated domain, optionally translates, and maps + * int linux virq space + */ +unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data) +{ + struct irq_domain *domain; + irq_hw_number_t hwirq; + unsigned int type = IRQ_TYPE_NONE; + + if (!irq_data->np) { + /* + * Nothing wrong with that, try default domain. + */ + domain = NULL; + } else { + domain = irq_find_host(irq_data->np); + if (!domain) { + pr_warn("no irq domain found for %s !\n", + of_node_full_name(irq_data->np)); + return 0; + } + } + + /* If domain has no translation, then we assume interrupt line */ + if (domain->ops->xlate == NULL) + hwirq = irq_data->args[0]; + else { + if (domain->ops->xlate(domain, irq_data->np, irq_data->args, + irq_data->args_count, &hwirq, &type)) + return 0; + } + + /* Create mapping */ + return irq_create_mapping_type(domain, hwirq, type); +} +EXPORT_SYMBOL_GPL(irq_create_of_mapping); + /** * irq_of_parse_and_map - Parse and map an interrupt into linux virq space * @dev: Device node of the device whose interrupt is to be mapped diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index c983ed1..c14f59b 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -175,6 +175,9 @@ extern void irq_domain_associate_many(struct irq_domain *domain, extern unsigned int irq_create_mapping(struct irq_domain *host, irq_hw_number_t hwirq); +extern unsigned int irq_create_mapping_type(struct irq_domain *domain, + irq_hw_number_t hwirq, + unsigned int type); extern void irq_dispose_mapping(unsigned int virq); /** diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index c661552..bf74a0b 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -465,29 +465,18 @@ int irq_create_strict_mappings(struct irq_domain *domain, unsigned int irq_base, } EXPORT_SYMBOL_GPL(irq_create_strict_mappings); -unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data) +/** + * irq_create_mapping_type() - Create mapping and set given irq type + * @domain: domain owning this hardware interrupt + * @hwirq: hardware interrupt + * @type: interrupt type + */ +unsigned int irq_create_mapping_type(struct irq_domain *domain, + irq_hw_number_t hwirq, + unsigned int type) { - struct irq_domain *domain; - irq_hw_number_t hwirq; - unsigned int type = IRQ_TYPE_NONE; unsigned int virq; - domain = irq_data->np ? irq_find_host(irq_data->np) : irq_default_domain; - if (!domain) { - pr_warn("no irq domain found for %s !\n", - of_node_full_name(irq_data->np)); - return 0; - } - - /* If domain has no translation, then we assume interrupt line */ - if (domain->ops->xlate == NULL) - hwirq = irq_data->args[0]; - else { - if (domain->ops->xlate(domain, irq_data->np, irq_data->args, - irq_data->args_count, &hwirq, &type)) - return 0; - } - /* Create mapping */ virq = irq_create_mapping(domain, hwirq); if (!virq) @@ -499,7 +488,7 @@ unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data) irq_set_irq_type(virq, type); return virq; } -EXPORT_SYMBOL_GPL(irq_create_of_mapping); +EXPORT_SYMBOL_GPL(irq_create_mapping_type); #ifdef CONFIG_ACPI unsigned int irq_create_acpi_mapping(irq_hw_number_t hwirq, -- 1.7.9.5

11 years, 5 months

[PATCH v3 0/5] Hardware Reduced Mode Cleanup for ACPI

by al.stone＠linaro.org

From: Al Stone <al.stone(a)linaro.org> This series of patches starts with Hanjun's patch to create a kernel config item for CONFIG_ACPI_REDUCED_HARDWARE [0]. Building on that, I then reviewed all of the code that touched any of several fields in the FADT that the OSPM is supposed to ignore when ACPI is in Hardware Reduced mode [1]. Any time there was a use of one of the fields to be ignored, I evaluated whether or not the code was implementing Hardware Reduced mode correctly. Similarly, for each the flags in the FADT flags field that are to be ignored in Hardware Reduced mode, the kernel code was again scanned for proper usage. The remainder of the patches are to fix all of the situations I could find where the kernel would not behave correctly in this ACPI mode. These seem to work just fine on the RTSM model for ARMv7, both with and without ACPI enabled, and with and without ACPI_REDUCED_HARDWARE enabled; similarly for the FVP model for ARMv8. The patches for ACPI on ARM hardware have been submitted elsewhere but they presume that reduced HW mode is functioning correctly. In the meantime, there's no way I can think of to test all possible scenarios so feedback would be greatly appreciated. [0] List at https://wiki.linaro.org/LEG/Engineering/Kernel/ACPI/AcpiReducedHw#Section_5… [1] Please see the ACPI Specification v5.0 for details on Hardware Reduced mode (sections 3.11.1, 4.1, 5.2.9, at a minimum). Changes for v3: -- Modified enabling ACPI_REDUCED_HARDWARE in ACPICA when using kernel config item CONFIG_ACPI_REDUCED_HARDWARE; now consistent with ACPICA code base where needed -- Enable X86 for CONFIG_ACPI_REDUCED_HARDWARE -- Minimize bus master reload patching -- Remove unneeded patch for dmi_check_system() (was 4/6) -- Correct the patch for removing unneeded map/unmap of FADT fields Changes for v2: -- Remove patch that was outside of reduced HW mode changes -- Simplify CONFIG_ACPI_REDUCED_HARDWARE in Kconfig -- Simplify use of CONFIG_ACPI_REDUCED_HARDWARE in #ifdefs -- Ensure changelogs are present -- Combine and simplify previous patches 8 & 10 Al Stone (5): ACPI: introduce CONFIG_ACPI_REDUCED_HARDWARE to enable this ACPI mode ACPI: bus master reload not supported in reduced HW mode ACPI: HW reduced mode does not allow use of the FADT sci_interrupt field ACPI: in HW reduced mode, using FADT PM information is not allowed. ACPI: do not map/unmap memory regions for FADT entries in reduced HW mode drivers/acpi/Kconfig | 8 ++++++++ drivers/acpi/bus.c | 3 ++- drivers/acpi/osl.c | 36 +++++++++++++++++------------------- drivers/acpi/pci_link.c | 2 ++ drivers/acpi/processor_idle.c | 15 +++++++++++++-- include/acpi/platform/aclinux.h | 6 ++++++ 6 files changed, 48 insertions(+), 22 deletions(-) -- 1.8.3.1

11 years, 5 months

[PATCH] rtsm_ve-aemv8a: add ASL for fixed regulator

by Graeme Gregory

Signed-off-by: Graeme Gregory <graeme.gregory(a)linaro.org> --- platforms/rtsm_ve-aemv8a.acpi/dsdt.asl | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl b/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl index 8cea035..a230d07 100644 --- a/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl +++ b/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl @@ -436,6 +436,25 @@ DefinitionBlock ( Return (0x00) } + Device (REG0) { + Name (_HID, "LNRO0019") + Name (_UID, 0) + + Method(_DSM, 4, NotSerialized) { + Store (Package (8) + { + "regulator-name", "3V3", + "regulator-min-microvolt", "3300000", + "regulator-max-microvolt", "3300000", + "regulator-always-on", "1", + }, Local0) + + DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0)) + + Return (Local0) + } + } + Device (AMBA) { Name (_HID, "AMBA0000") Name (_UID, 0) -- 1.8.4.2

11 years, 5 months

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