diff options
Diffstat (limited to 'drivers/acpi')
34 files changed, 1485 insertions, 602 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 4cb763a01f4d..91477d5ab422 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -541,4 +541,20 @@ if ARM64 source "drivers/acpi/arm64/Kconfig" endif +config TPS68470_PMIC_OPREGION + bool "ACPI operation region support for TPS68470 PMIC" + depends on MFD_TPS68470 + help + This config adds ACPI operation region support for TI TPS68470 PMIC. + TPS68470 device is an advanced power management unit that powers + a Compact Camera Module (CCM), generates clocks for image sensors, + drives a dual LED for flash and incorporates two LED drivers for + general purpose indicators. + This driver enables ACPI operation region support control voltage + regulators and clocks. + + This option is a bool as it provides an ACPI operation + region, which must be available before any of the devices + using this, are probed. + endif # ACPI diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 168e14d29d31..31c15d84a8d0 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -109,6 +109,8 @@ obj-$(CONFIG_CHT_WC_PMIC_OPREGION) += pmic/intel_pmic_chtwc.o obj-$(CONFIG_ACPI_CONFIGFS) += acpi_configfs.o +obj-$(CONFIG_TPS68470_PMIC_OPREGION) += pmic/tps68470_pmic.o + video-objs += acpi_video.o video_detect.o obj-y += dptf/ diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 8f52483219ba..47a7ed557bd6 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -265,6 +265,7 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event) default: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unsupported event [0x%x]\n", event)); + /* fall through */ case ACPI_AC_NOTIFY_STATUS: case ACPI_NOTIFY_BUS_CHECK: case ACPI_NOTIFY_DEVICE_CHECK: diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index de7385b824e1..7f2b02cc8ea1 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -362,7 +362,7 @@ static int register_device_clock(struct acpi_device *adev, { const struct lpss_device_desc *dev_desc = pdata->dev_desc; const char *devname = dev_name(&adev->dev); - struct clk *clk = ERR_PTR(-ENODEV); + struct clk *clk; struct lpss_clk_data *clk_data; const char *parent, *clk_name; void __iomem *prv_base; diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 86c10599d9f8..449d86d39965 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -82,6 +82,7 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev) * PIIX4 models. */ errata.piix4.throttle = 1; + /* fall through*/ case 2: /* PIIX4E */ case 3: /* PIIX4M */ diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index e05232da0588..71f6f2624deb 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -178,6 +178,7 @@ acpi-y += \ utresrc.o \ utstate.o \ utstring.o \ + utstrsuppt.o \ utstrtoul64.o \ utxface.o \ utxfinit.o \ diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index fd4f3cacb356..cd722d8edacb 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -66,9 +66,9 @@ acpi_status acpi_hw_validate_register(struct acpi_generic_address *reg, u8 max_bit_width, u64 *address); -acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg); +acpi_status acpi_hw_read(u64 *value, struct acpi_generic_address *reg); -acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg); +acpi_status acpi_hw_write(u64 value, struct acpi_generic_address *reg); struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id); diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h index 29a863c85318..29555c8789a3 100644 --- a/drivers/acpi/acpica/acinterp.h +++ b/drivers/acpi/acpica/acinterp.h @@ -101,7 +101,8 @@ typedef const struct acpi_exdump_info { */ acpi_status acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, - union acpi_operand_object **result_desc, u32 flags); + union acpi_operand_object **result_desc, + u32 implicit_conversion); acpi_status acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc, @@ -424,9 +425,6 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, struct acpi_walk_state *walk_state, u8 implicit_conversion); -#define ACPI_IMPLICIT_CONVERSION TRUE -#define ACPI_NO_IMPLICIT_CONVERSION FALSE - /* * exstoren - resolve/store object */ diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index 745134ade35f..83b75e9db7ef 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -141,6 +141,11 @@ extern const char *acpi_gbl_ptyp_decode[]; #define ACPI_MSG_SUFFIX \ acpi_os_printf (" (%8.8X/%s-%u)\n", ACPI_CA_VERSION, module_name, line_number) +/* Flags to indicate implicit or explicit string-to-integer conversion */ + +#define ACPI_IMPLICIT_CONVERSION TRUE +#define ACPI_NO_IMPLICIT_CONVERSION FALSE + /* Types for Resource descriptor entries */ #define ACPI_INVALID_RESOURCE 0 @@ -197,15 +202,31 @@ void acpi_ut_strlwr(char *src_string); int acpi_ut_stricmp(char *string1, char *string2); -acpi_status acpi_ut_strtoul64(char *string, u32 flags, u64 *ret_integer); +/* + * utstrsuppt - string-to-integer conversion support functions + */ +acpi_status acpi_ut_convert_octal_string(char *string, u64 *return_value); + +acpi_status acpi_ut_convert_decimal_string(char *string, u64 *return_value_ptr); + +acpi_status acpi_ut_convert_hex_string(char *string, u64 *return_value_ptr); + +char acpi_ut_remove_whitespace(char **string); + +char acpi_ut_remove_leading_zeros(char **string); + +u8 acpi_ut_detect_hex_prefix(char **string); + +u8 acpi_ut_detect_octal_prefix(char **string); /* - * Values for Flags above - * Note: LIMIT values correspond to acpi_gbl_integer_byte_width values (4/8) + * utstrtoul64 - string-to-integer conversion functions */ -#define ACPI_STRTOUL_32BIT 0x04 /* 4 bytes */ -#define ACPI_STRTOUL_64BIT 0x08 /* 8 bytes */ -#define ACPI_STRTOUL_BASE16 0x10 /* Default: Base10/16 */ +acpi_status acpi_ut_strtoul64(char *string, u64 *ret_integer); + +u64 acpi_ut_explicit_strtoul64(char *string); + +u64 acpi_ut_implicit_strtoul64(char *string); /* * utglobal - Global data structures and procedures diff --git a/drivers/acpi/acpica/dbconvert.c b/drivers/acpi/acpica/dbconvert.c index 857dbc43a9b1..32d546f0db2f 100644 --- a/drivers/acpi/acpica/dbconvert.c +++ b/drivers/acpi/acpica/dbconvert.c @@ -277,10 +277,7 @@ acpi_db_convert_to_object(acpi_object_type type, default: object->type = ACPI_TYPE_INTEGER; - status = acpi_ut_strtoul64(string, - (acpi_gbl_integer_byte_width | - ACPI_STRTOUL_BASE16), - &object->integer.value); + status = acpi_ut_strtoul64(string, &object->integer.value); break; } diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c index 20d7744b06ae..22f45d090733 100644 --- a/drivers/acpi/acpica/dswexec.c +++ b/drivers/acpi/acpica/dswexec.c @@ -134,7 +134,7 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state, * object. Implicitly convert the argument if necessary. */ status = acpi_ex_convert_to_integer(obj_desc, &local_obj_desc, - ACPI_STRTOUL_BASE16); + ACPI_IMPLICIT_CONVERSION); if (ACPI_FAILURE(status)) { goto cleanup; } diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index 229382035550..263d8fc4a9e2 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -390,8 +390,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list) struct acpi_gpe_handler_info *gpe_handler_info; u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; u8 enabled_status_byte; - u32 status_reg; - u32 enable_reg; + u64 status_reg; + u64 enable_reg; acpi_cpu_flags flags; u32 i; u32 j; @@ -472,7 +472,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list) gpe_register_info->base_gpe_number, gpe_register_info->base_gpe_number + (ACPI_GPE_REGISTER_WIDTH - 1), - status_reg, enable_reg, + (u32)status_reg, (u32)enable_reg, gpe_register_info->enable_for_run, gpe_register_info->enable_for_wake)); diff --git a/drivers/acpi/acpica/exconcat.c b/drivers/acpi/acpica/exconcat.c index 76bfb7dcae2f..59b8de2f07d3 100644 --- a/drivers/acpi/acpica/exconcat.c +++ b/drivers/acpi/acpica/exconcat.c @@ -156,7 +156,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, status = acpi_ex_convert_to_integer(local_operand1, &temp_operand1, - ACPI_STRTOUL_BASE16); + ACPI_IMPLICIT_CONVERSION); break; case ACPI_TYPE_BUFFER: diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c index f71028e334ee..23ebadb06a95 100644 --- a/drivers/acpi/acpica/exconvrt.c +++ b/drivers/acpi/acpica/exconvrt.c @@ -57,10 +57,10 @@ acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 max_length); * * FUNCTION: acpi_ex_convert_to_integer * - * PARAMETERS: obj_desc - Object to be converted. Must be an - * Integer, Buffer, or String - * result_desc - Where the new Integer object is returned - * flags - Used for string conversion + * PARAMETERS: obj_desc - Object to be converted. Must be an + * Integer, Buffer, or String + * result_desc - Where the new Integer object is returned + * implicit_conversion - Used for string conversion * * RETURN: Status * @@ -70,14 +70,14 @@ acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 max_length); acpi_status acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, - union acpi_operand_object **result_desc, u32 flags) + union acpi_operand_object **result_desc, + u32 implicit_conversion) { union acpi_operand_object *return_desc; u8 *pointer; u64 result; u32 i; u32 count; - acpi_status status; ACPI_FUNCTION_TRACE_PTR(ex_convert_to_integer, obj_desc); @@ -123,12 +123,18 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, * hexadecimal as per the ACPI specification. The only exception (as * of ACPI 3.0) is that the to_integer() operator allows both decimal * and hexadecimal strings (hex prefixed with "0x"). + * + * Explicit conversion is used only by to_integer. + * All other string-to-integer conversions are implicit conversions. */ - status = acpi_ut_strtoul64(ACPI_CAST_PTR(char, pointer), - (acpi_gbl_integer_byte_width | - flags), &result); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + if (implicit_conversion) { + result = + acpi_ut_implicit_strtoul64(ACPI_CAST_PTR + (char, pointer)); + } else { + result = + acpi_ut_explicit_strtoul64(ACPI_CAST_PTR + (char, pointer)); } break; @@ -631,7 +637,7 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type, */ status = acpi_ex_convert_to_integer(source_desc, result_desc, - ACPI_STRTOUL_BASE16); + ACPI_IMPLICIT_CONVERSION); break; case ACPI_TYPE_STRING: diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c index 1e7649ce0a7b..dbad3ebd7df5 100644 --- a/drivers/acpi/acpica/exmisc.c +++ b/drivers/acpi/acpica/exmisc.c @@ -330,7 +330,7 @@ acpi_ex_do_logical_op(u16 opcode, case ACPI_TYPE_INTEGER: status = acpi_ex_convert_to_integer(operand1, &local_operand1, - ACPI_STRTOUL_BASE16); + ACPI_IMPLICIT_CONVERSION); break; case ACPI_TYPE_STRING: diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c index c4852429e2ff..1c7c9962b0de 100644 --- a/drivers/acpi/acpica/exresop.c +++ b/drivers/acpi/acpica/exresop.c @@ -415,7 +415,7 @@ acpi_ex_resolve_operands(u16 opcode, * Known as "Implicit Source Operand Conversion" */ status = acpi_ex_convert_to_integer(obj_desc, stack_ptr, - ACPI_STRTOUL_BASE16); + ACPI_IMPLICIT_CONVERSION); if (ACPI_FAILURE(status)) { if (status == AE_TYPE) { ACPI_ERROR((AE_INFO, diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index 5eb11b30a79e..09b6822aa5cc 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -99,7 +99,7 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action) { struct acpi_gpe_register_info *gpe_register_info; acpi_status status = AE_OK; - u32 enable_mask; + u64 enable_mask; u32 register_bit; ACPI_FUNCTION_ENTRY(); @@ -214,7 +214,7 @@ acpi_status acpi_hw_get_gpe_status(struct acpi_gpe_event_info *gpe_event_info, acpi_event_status *event_status) { - u32 in_byte; + u64 in_byte; u32 register_bit; struct acpi_gpe_register_info *gpe_register_info; acpi_event_status local_event_status = 0; diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c index acb417b58bbb..aa6e00081915 100644 --- a/drivers/acpi/acpica/hwregs.c +++ b/drivers/acpi/acpica/hwregs.c @@ -220,16 +220,15 @@ acpi_hw_validate_register(struct acpi_generic_address *reg, * * RETURN: Status * - * DESCRIPTION: Read from either memory or IO space. This is a 32-bit max - * version of acpi_read, used internally since the overhead of - * 64-bit values is not needed. + * DESCRIPTION: Read from either memory or IO space. This is a 64-bit max + * version of acpi_read. * * LIMITATIONS: <These limitations also apply to acpi_hw_write> * space_ID must be system_memory or system_IO. * ******************************************************************************/ -acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg) +acpi_status acpi_hw_read(u64 *value, struct acpi_generic_address *reg) { u64 address; u8 access_width; @@ -244,17 +243,17 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg) /* Validate contents of the GAS register */ - status = acpi_hw_validate_register(reg, 32, &address); + status = acpi_hw_validate_register(reg, 64, &address); if (ACPI_FAILURE(status)) { return (status); } /* - * Initialize entire 32-bit return value to zero, convert access_width + * Initialize entire 64-bit return value to zero, convert access_width * into number of bits based */ *value = 0; - access_width = acpi_hw_get_access_bit_width(address, reg, 32); + access_width = acpi_hw_get_access_bit_width(address, reg, 64); bit_width = reg->bit_offset + reg->bit_width; bit_offset = reg->bit_offset; @@ -265,7 +264,7 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg) index = 0; while (bit_width) { if (bit_offset >= access_width) { - value32 = 0; + value64 = 0; bit_offset -= access_width; } else { if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { @@ -276,7 +275,6 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg) ACPI_DIV_8 (access_width), &value64, access_width); - value32 = (u32)value64; } else { /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ status = acpi_hw_read_port((acpi_io_address) @@ -286,15 +284,16 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg) (access_width), &value32, access_width); + value64 = (u64)value32; } } /* * Use offset style bit writes because "Index * AccessWidth" is - * ensured to be less than 32-bits by acpi_hw_validate_register(). + * ensured to be less than 64-bits by acpi_hw_validate_register(). */ ACPI_SET_BITS(value, index * access_width, - ACPI_MASK_BITS_ABOVE_32(access_width), value32); + ACPI_MASK_BITS_ABOVE_64(access_width), value64); bit_width -= bit_width > access_width ? access_width : bit_width; @@ -302,8 +301,9 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg) } ACPI_DEBUG_PRINT((ACPI_DB_IO, - "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n", - *value, access_width, ACPI_FORMAT_UINT64(address), + "Read: %8.8X%8.8X width %2d from %8.8X%8.8X (%s)\n", + ACPI_FORMAT_UINT64(*value), access_width, + ACPI_FORMAT_UINT64(address), acpi_ut_get_region_name(reg->space_id))); return (status); @@ -318,20 +318,18 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg) * * RETURN: Status * - * DESCRIPTION: Write to either memory or IO space. This is a 32-bit max - * version of acpi_write, used internally since the overhead of - * 64-bit values is not needed. + * DESCRIPTION: Write to either memory or IO space. This is a 64-bit max + * version of acpi_write. * ******************************************************************************/ -acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg) +acpi_status acpi_hw_write(u64 value, struct acpi_generic_address *reg) { u64 address; u8 access_width; u32 bit_width; u8 bit_offset; u64 value64; - u32 value32; u8 index; acpi_status status; @@ -339,14 +337,14 @@ acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg) /* Validate contents of the GAS register */ - status = acpi_hw_validate_register(reg, 32, &address); + status = acpi_hw_validate_register(reg, 64, &address); if (ACPI_FAILURE(status)) { return (status); } /* Convert access_width into number of bits based */ - access_width = acpi_hw_get_access_bit_width(address, reg, 32); + access_width = acpi_hw_get_access_bit_width(address, reg, 64); bit_width = reg->bit_offset + reg->bit_width; bit_offset = reg->bit_offset; @@ -358,16 +356,15 @@ acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg) while (bit_width) { /* * Use offset style bit reads because "Index * AccessWidth" is - * ensured to be less than 32-bits by acpi_hw_validate_register(). + * ensured to be less than 64-bits by acpi_hw_validate_register(). */ - value32 = ACPI_GET_BITS(&value, index * access_width, - ACPI_MASK_BITS_ABOVE_32(access_width)); + value64 = ACPI_GET_BITS(&value, index * access_width, + ACPI_MASK_BITS_ABOVE_64(access_width)); if (bit_offset >= access_width) { bit_offset -= access_width; } else { if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { - value64 = (u64)value32; status = acpi_os_write_memory((acpi_physical_address) address + @@ -382,7 +379,7 @@ acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg) index * ACPI_DIV_8 (access_width), - value32, + (u32)value64, access_width); } } @@ -397,8 +394,9 @@ acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg) } ACPI_DEBUG_PRINT((ACPI_DB_IO, - "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n", - value, access_width, ACPI_FORMAT_UINT64(address), + "Wrote: %8.8X%8.8X width %2d to %8.8X%8.8X (%s)\n", + ACPI_FORMAT_UINT64(value), access_width, + ACPI_FORMAT_UINT64(address), acpi_ut_get_region_name(reg->space_id))); return (status); @@ -526,6 +524,7 @@ acpi_status acpi_hw_write_pm1_control(u32 pm1a_control, u32 pm1b_control) acpi_status acpi_hw_register_read(u32 register_id, u32 *return_value) { u32 value = 0; + u64 value64; acpi_status status; ACPI_FUNCTION_TRACE(hw_register_read); @@ -564,12 +563,14 @@ acpi_status acpi_hw_register_read(u32 register_id, u32 *return_value) case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */ status = - acpi_hw_read(&value, &acpi_gbl_FADT.xpm2_control_block); + acpi_hw_read(&value64, &acpi_gbl_FADT.xpm2_control_block); + value = (u32)value64; break; case ACPI_REGISTER_PM_TIMER: /* 32-bit access */ - status = acpi_hw_read(&value, &acpi_gbl_FADT.xpm_timer_block); + status = acpi_hw_read(&value64, &acpi_gbl_FADT.xpm_timer_block); + value = (u32)value64; break; case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */ @@ -586,7 +587,7 @@ acpi_status acpi_hw_register_read(u32 register_id, u32 *return_value) } if (ACPI_SUCCESS(status)) { - *return_value = value; + *return_value = (u32)value; } return_ACPI_STATUS(status); @@ -622,6 +623,7 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value) { acpi_status status; u32 read_value; + u64 read_value64; ACPI_FUNCTION_TRACE(hw_register_write); @@ -685,11 +687,12 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value) * as per the ACPI spec. */ status = - acpi_hw_read(&read_value, + acpi_hw_read(&read_value64, &acpi_gbl_FADT.xpm2_control_block); if (ACPI_FAILURE(status)) { goto exit; } + read_value = (u32)read_value64; /* Insert the bits to be preserved */ @@ -745,22 +748,25 @@ acpi_hw_read_multiple(u32 *value, { u32 value_a = 0; u32 value_b = 0; + u64 value64; acpi_status status; /* The first register is always required */ - status = acpi_hw_read(&value_a, register_a); + status = acpi_hw_read(&value64, register_a); if (ACPI_FAILURE(status)) { return (status); } + value_a = (u32)value64; /* Second register is optional */ if (register_b->address) { - status = acpi_hw_read(&value_b, register_b); + status = acpi_hw_read(&value64, register_b); if (ACPI_FAILURE(status)) { return (status); } + value_b = (u32)value64; } /* diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c index b3c5d8c754bb..a2f4e25d45b1 100644 --- a/drivers/acpi/acpica/hwtimer.c +++ b/drivers/acpi/acpica/hwtimer.c @@ -94,6 +94,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_timer_resolution) acpi_status acpi_get_timer(u32 * ticks) { acpi_status status; + u64 timer_value; ACPI_FUNCTION_TRACE(acpi_get_timer); @@ -107,7 +108,14 @@ acpi_status acpi_get_timer(u32 * ticks) return_ACPI_STATUS(AE_SUPPORT); } - status = acpi_hw_read(ticks, &acpi_gbl_FADT.xpm_timer_block); + status = acpi_hw_read(&timer_value, &acpi_gbl_FADT.xpm_timer_block); + if (ACPI_SUCCESS(status)) { + + /* ACPI PM Timer is defined to be 32 bits (PM_TMR_LEN) */ + + *ticks = (u32)timer_value; + } + return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c index 34684ae89981..b3c6e439933c 100644 --- a/drivers/acpi/acpica/hwxface.c +++ b/drivers/acpi/acpica/hwxface.c @@ -125,76 +125,12 @@ ACPI_EXPORT_SYMBOL(acpi_reset) ******************************************************************************/ acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg) { - u32 value_lo; - u32 value_hi; - u32 width; - u64 address; acpi_status status; ACPI_FUNCTION_NAME(acpi_read); - if (!return_value) { - return (AE_BAD_PARAMETER); - } - - /* Validate contents of the GAS register. Allow 64-bit transfers */ - - status = acpi_hw_validate_register(reg, 64, &address); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* - * Two address spaces supported: Memory or I/O. PCI_Config is - * not supported here because the GAS structure is insufficient - */ - if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { - status = acpi_os_read_memory((acpi_physical_address) - address, return_value, - reg->bit_width); - if (ACPI_FAILURE(status)) { - return (status); - } - } else { /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ - - value_lo = 0; - value_hi = 0; - - width = reg->bit_width; - if (width == 64) { - width = 32; /* Break into two 32-bit transfers */ - } - - status = acpi_hw_read_port((acpi_io_address) - address, &value_lo, width); - if (ACPI_FAILURE(status)) { - return (status); - } - - if (reg->bit_width == 64) { - - /* Read the top 32 bits */ - - status = acpi_hw_read_port((acpi_io_address) - (address + 4), &value_hi, - 32); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - /* Set the return value only if status is AE_OK */ - - *return_value = (value_lo | ((u64)value_hi << 32)); - } - - ACPI_DEBUG_PRINT((ACPI_DB_IO, - "Read: %8.8X%8.8X width %2d from %8.8X%8.8X (%s)\n", - ACPI_FORMAT_UINT64(*return_value), reg->bit_width, - ACPI_FORMAT_UINT64(address), - acpi_ut_get_region_name(reg->space_id))); - - return (AE_OK); + status = acpi_hw_read(return_value, reg); + return (status); } ACPI_EXPORT_SYMBOL(acpi_read) @@ -213,59 +149,11 @@ ACPI_EXPORT_SYMBOL(acpi_read) ******************************************************************************/ acpi_status acpi_write(u64 value, struct acpi_generic_address *reg) { - u32 width; - u64 address; acpi_status status; ACPI_FUNCTION_NAME(acpi_write); - /* Validate contents of the GAS register. Allow 64-bit transfers */ - - status = acpi_hw_validate_register(reg, 64, &address); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* - * Two address spaces supported: Memory or IO. PCI_Config is - * not supported here because the GAS structure is insufficient - */ - if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { - status = acpi_os_write_memory((acpi_physical_address) - address, value, reg->bit_width); - if (ACPI_FAILURE(status)) { - return (status); - } - } else { /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ - - width = reg->bit_width; - if (width == 64) { - width = 32; /* Break into two 32-bit transfers */ - } - - status = acpi_hw_write_port((acpi_io_address) - address, ACPI_LODWORD(value), - width); - if (ACPI_FAILURE(status)) { - return (status); - } - - if (reg->bit_width == 64) { - status = acpi_hw_write_port((acpi_io_address) - (address + 4), - ACPI_HIDWORD(value), 32); - if (ACPI_FAILURE(status)) { - return (status); - } - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_IO, - "Wrote: %8.8X%8.8X width %2d to %8.8X%8.8X (%s)\n", - ACPI_FORMAT_UINT64(value), reg->bit_width, - ACPI_FORMAT_UINT64(address), - acpi_ut_get_region_name(reg->space_id))); - + |