Merge tag 'acpi-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These rearrange the ACPI documentation by converting it to the .rst
  format and splitting it into clear categories (admin guide, driver
  API, firmware guide), switch over multiple users of a problematic
  library function to a new better one, update the ACPICA code in the
  kernel to a new upstream release, fix a few issues, improve power
  device management diagnostics and do some cleanups.

  Specifics:

   - Convert the ACPI documentation in the kernel source tree to the
     .rst format and split it into the admin guide, driver API and
     firmware guide parts (Changbin Du).

   - Add a PRP0001 usage example to the ACPI documentation (Thomas
     Preston).

   - Switch over the users of the acpi_dev_get_first_match_name()
     library function which turned out to be problematic to a new,
     better one called acpi_dev_get_first_match_dev() (Andy Shevchenko,
     YueHaibing).

   - Update the ACPICA code in the kernel to upstream release 20190405
     including:
       * Null pointer dereference check in acpi_ns_delete_node() (Erik
         Schmauss).
       * Multiple macro and function name changes (Bob Moore).
       * Predefined operation region name fix (Erik Schmauss).

   - Fix hibernation issue on systems using the Baytrail and Cherrytrail
     Intel SoCs introduced during the 4.20 development cycle (Hans de
     Goede).

   - Add Sony VPCEH3U1E to the backlight quirk list (Zhang Rui).

   - Fix button handling during system resume (Zhang Rui).

   - Add a device PM diagnostic message (Rafael Wysocki).

   - Clean up the code, comments and white space in multiple places
     (Bjorn Helgaas, Gustavo Silva, Kefeng Wang)"

* tag 'acpi-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits)
  Documentation: ACPI: move video_extension.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move ssdt-overlays.txt to admin-guide/acpi and convert to reST
  Documentation: ACPI: move lpit.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move cppc_sysfs.txt to admin-guide/acpi and convert to reST
  Documentation: ACPI: move apei/einj.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move apei/output_format.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move aml-debugger.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move method-tracing.txt to firmware-guide/acpi and convert to rsST
  Documentation: ACPI: move debug.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move dsd/data-node-references.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move dsd/graph.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move acpi-lid.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move i2c-muxes.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move dsdt-override.txt to admin-guide/acpi and convert to reST
  Documentation: ACPI: move initrd_table_override.txt to admin-guide/acpi and convert to reST
  Documentation: ACPI: move method-customizing.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move gpio-properties.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move DSD-properties-rules.txt to firmware-guide/acpi and covert to reST
  Documentation: ACPI: move scan_handlers.txt to driver-api/acpi and convert to reST
  Documentation: ACPI: move linuxized-acpica.txt to driver-api/acpi and convert to reST
  ...

3 files changed, 32 insertions, 32 deletions

diff --git a/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c b/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
index 2a1fd9182f94..d1f3d44e315e 100644
--- a/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
+++ b/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
@@ -19,7 +19,7 @@ ACPI_MODULE_NAME("oslinuxtbl")
 typedef struct osl_table_info {
 	struct osl_table_info *next;
 	u32 instance;
-	char signature[ACPI_NAME_SIZE];
+	char signature[ACPI_NAMESEG_SIZE];
 
 } osl_table_info;
 
@@ -286,14 +286,14 @@ static acpi_status osl_add_table_to_list(char *signature, u32 instance)
 		return (AE_NO_MEMORY);
 	}
 
-	ACPI_MOVE_NAME(new_info->signature, signature);
+	ACPI_COPY_NAMESEG(new_info->signature, signature);
 
 	if (!gbl_table_list_head) {
 		gbl_table_list_head = new_info;
 	} else {
 		next = gbl_table_list_head;
 		while (1) {
-			if (ACPI_COMPARE_NAME(next->signature, signature)) {
+			if (ACPI_COMPARE_NAMESEG(next->signature, signature)) {
 				if (next->instance == instance) {
 					found = TRUE;
 				}
@@ -782,11 +782,11 @@ osl_get_bios_table(char *signature,
 
 	/* Handle special tables whose addresses are not in RSDT/XSDT */
 
-	if (ACPI_COMPARE_NAME(signature, ACPI_RSDP_NAME) ||
-	    ACPI_COMPARE_NAME(signature, ACPI_SIG_RSDT) ||
-	    ACPI_COMPARE_NAME(signature, ACPI_SIG_XSDT) ||
-	    ACPI_COMPARE_NAME(signature, ACPI_SIG_DSDT) ||
-	    ACPI_COMPARE_NAME(signature, ACPI_SIG_FACS)) {
+	if (ACPI_COMPARE_NAMESEG(signature, ACPI_RSDP_NAME) ||
+	    ACPI_COMPARE_NAMESEG(signature, ACPI_SIG_RSDT) ||
+	    ACPI_COMPARE_NAMESEG(signature, ACPI_SIG_XSDT) ||
+	    ACPI_COMPARE_NAMESEG(signature, ACPI_SIG_DSDT) ||
+	    ACPI_COMPARE_NAMESEG(signature, ACPI_SIG_FACS)) {
 
 find_next_instance:
 
@@ -797,7 +797,7 @@ find_next_instance:
 		 * careful about the FADT length and validate table addresses.
 		 * Note: The 64-bit addresses have priority.
 		 */
-		if (ACPI_COMPARE_NAME(signature, ACPI_SIG_DSDT)) {
+		if (ACPI_COMPARE_NAMESEG(signature, ACPI_SIG_DSDT)) {
 			if (current_instance < 2) {
 				if ((gbl_fadt->header.length >=
 				     MIN_FADT_FOR_XDSDT) && gbl_fadt->Xdsdt
@@ -815,7 +815,7 @@ find_next_instance:
 					    dsdt;
 				}
 			}
-		} else if (ACPI_COMPARE_NAME(signature, ACPI_SIG_FACS)) {
+		} else if (ACPI_COMPARE_NAMESEG(signature, ACPI_SIG_FACS)) {
 			if (current_instance < 2) {
 				if ((gbl_fadt->header.length >=
 				     MIN_FADT_FOR_XFACS) && gbl_fadt->Xfacs
@@ -833,7 +833,7 @@ find_next_instance:
 					    facs;
 				}
 			}
-		} else if (ACPI_COMPARE_NAME(signature, ACPI_SIG_XSDT)) {
+		} else if (ACPI_COMPARE_NAMESEG(signature, ACPI_SIG_XSDT)) {
 			if (!gbl_revision) {
 				return (AE_BAD_SIGNATURE);
 			}
@@ -842,7 +842,7 @@ find_next_instance:
 				    (acpi_physical_address)gbl_rsdp.
 				    xsdt_physical_address;
 			}
-		} else if (ACPI_COMPARE_NAME(signature, ACPI_SIG_RSDT)) {
+		} else if (ACPI_COMPARE_NAMESEG(signature, ACPI_SIG_RSDT)) {
 			if (current_instance == 0) {
 				table_address =
 				    (acpi_physical_address)gbl_rsdp.
@@ -931,7 +931,7 @@ find_next_instance:
 
 			/* Does this table match the requested signature? */
 
-			if (!ACPI_COMPARE_NAME
+			if (!ACPI_COMPARE_NAMESEG
 			    (mapped_table->signature, signature)) {
 				osl_unmap_table(mapped_table);
 				mapped_table = NULL;
@@ -995,7 +995,7 @@ static acpi_status osl_list_customized_tables(char *directory)
 {
 	void *table_dir;
 	u32 instance;
-	char temp_name[ACPI_NAME_SIZE];
+	char temp_name[ACPI_NAMESEG_SIZE];
 	char *filename;
 	acpi_status status = AE_OK;
 
@@ -1086,8 +1086,8 @@ osl_map_table(acpi_size address,
 				return (AE_BAD_SIGNATURE);
 			}
 		} else
-		    if (!ACPI_COMPARE_NAME(signature, mapped_table->signature))
-		{
+		    if (!ACPI_COMPARE_NAMESEG
+			(signature, mapped_table->signature)) {
 			acpi_os_unmap_memory(mapped_table,
 					     sizeof(struct acpi_table_header));
 			return (AE_BAD_SIGNATURE);
@@ -1158,15 +1158,15 @@ osl_table_name_from_file(char *filename, char *signature, u32 *instance)
 
 	/* Ignore meaningless files */
 
-	if (strlen(filename) < ACPI_NAME_SIZE) {
+	if (strlen(filename) < ACPI_NAMESEG_SIZE) {
 		return (AE_BAD_SIGNATURE);
 	}
 
 	/* Extract instance number */
 
-	if (isdigit((int)filename[ACPI_NAME_SIZE])) {
-		sscanf(&filename[ACPI_NAME_SIZE], "%u", instance);
-	} else if (strlen(filename) != ACPI_NAME_SIZE) {
+	if (isdigit((int)filename[ACPI_NAMESEG_SIZE])) {
+		sscanf(&filename[ACPI_NAMESEG_SIZE], "%u", instance);
+	} else if (strlen(filename) != ACPI_NAMESEG_SIZE) {
 		return (AE_BAD_SIGNATURE);
 	} else {
 		*instance = 0;
@@ -1174,7 +1174,7 @@ osl_table_name_from_file(char *filename, char *signature, u32 *instance)
 
 	/* Extract signature */
 
-	ACPI_MOVE_NAME(signature, filename);
+	ACPI_COPY_NAMESEG(signature, filename);
 	return (AE_OK);
 }
 
@@ -1236,7 +1236,7 @@ osl_read_table_from_file(char *filename,
 				status = AE_BAD_SIGNATURE;
 				goto exit;
 			}
-		} else if (!ACPI_COMPARE_NAME(signature, header.signature)) {
+		} else if (!ACPI_COMPARE_NAMESEG(signature, header.signature)) {
 			fprintf(stderr,
 				"Incorrect signature: Expecting %4.4s, found %4.4s\n",
 				signature, header.signature);
@@ -1311,7 +1311,7 @@ osl_get_customized_table(char *pathname,
 {
 	void *table_dir;
 	u32 current_instance = 0;
-	char temp_name[ACPI_NAME_SIZE];
+	char temp_name[ACPI_NAMESEG_SIZE];
 	char table_filename[PATH_MAX];
 	char *filename;
 	acpi_status status;
@@ -1329,7 +1329,7 @@ osl_get_customized_table(char *pathname,
 
 		/* Ignore meaningless files */
 
-		if (!ACPI_COMPARE_NAME(filename, signature)) {
+		if (!ACPI_COMPARE_NAMESEG(filename, signature)) {
 			continue;
 		}
 
diff --git a/tools/power/acpi/tools/acpidump/apdump.c b/tools/power/acpi/tools/acpidump/apdump.c
index e256c2ac5ddc..820baeb5092b 100644
--- a/tools/power/acpi/tools/acpidump/apdump.c
+++ b/tools/power/acpi/tools/acpidump/apdump.c
@@ -289,14 +289,14 @@ int ap_dump_table_by_address(char *ascii_address)
 
 int ap_dump_table_by_name(char *signature)
 {
-	char local_signature[ACPI_NAME_SIZE + 1];
+	char local_signature[ACPI_NAMESEG_SIZE + 1];
 	u32 instance;
 	struct acpi_table_header *table;
 	acpi_physical_address address;
 	acpi_status status;
 	int table_status;
 
-	if (strlen(signature) != ACPI_NAME_SIZE) {
+	if (strlen(signature) != ACPI_NAMESEG_SIZE) {
 		fprintf(stderr,
 			"Invalid table signature [%s]: must be exactly 4 characters\n",
 			signature);
@@ -310,9 +310,9 @@ int ap_dump_table_by_name(char *signature)
 
 	/* To be friendly, handle tables whose signatures do not match the name */
 
-	if (ACPI_COMPARE_NAME(local_signature, "FADT")) {
+	if (ACPI_COMPARE_NAMESEG(local_signature, "FADT")) {
 		strcpy(local_signature, ACPI_SIG_FADT);
-	} else if (ACPI_COMPARE_NAME(local_signature, "MADT")) {
+	} else if (ACPI_COMPARE_NAMESEG(local_signature, "MADT")) {
 		strcpy(local_signature, ACPI_SIG_MADT);
 	}
 
diff --git a/tools/power/acpi/tools/acpidump/apfiles.c b/tools/power/acpi/tools/acpidump/apfiles.c
index 49972bc78bc5..a42cfcaa3293 100644
--- a/tools/power/acpi/tools/acpidump/apfiles.c
+++ b/tools/power/acpi/tools/acpidump/apfiles.c
@@ -97,7 +97,7 @@ int ap_open_output_file(char *pathname)
 
 int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance)
 {
-	char filename[ACPI_NAME_SIZE + 16];
+	char filename[ACPI_NAMESEG_SIZE + 16];
 	char instance_str[16];
 	ACPI_FILE file;
 	acpi_size actual;
@@ -110,16 +110,16 @@ int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance)
 	/* Construct lower-case filename from the table local signature */
 
 	if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
-		ACPI_MOVE_NAME(filename, ACPI_RSDP_NAME);
+		ACPI_COPY_NAMESEG(filename, ACPI_RSDP_NAME);
 	} else {
-		ACPI_MOVE_NAME(filename, table->signature);
+		ACPI_COPY_NAMESEG(filename, table->signature);
 	}
 
 	filename[0] = (char)tolower((int)filename[0]);
 	filename[1] = (char)tolower((int)filename[1]);
 	filename[2] = (char)tolower((int)filename[2]);
 	filename[3] = (char)tolower((int)filename[3]);
-	filename[ACPI_NAME_SIZE] = 0;
+	filename[ACPI_NAMESEG_SIZE] = 0;
 
 	/* Handle multiple SSDts - create different filenames for each */