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
  ...

6 files changed, 33 insertions, 27 deletions

diff --git a/sound/soc/intel/boards/bytcht_da7213.c b/sound/soc/intel/boards/bytcht_da7213.c
index b8e884803777..4decba338156 100644
--- a/sound/soc/intel/boards/bytcht_da7213.c
+++ b/sound/soc/intel/boards/bytcht_da7213.c
@@ -226,7 +226,7 @@ static int bytcht_da7213_probe(struct platform_device *pdev)
 	struct snd_soc_card *card;
 	struct snd_soc_acpi_mach *mach;
 	const char *platform_name;
-	const char *i2c_name = NULL;
+	struct acpi_device *adev;
 	int dai_index = 0;
 	int ret_val = 0;
 	int i;
@@ -244,10 +244,11 @@ static int bytcht_da7213_probe(struct platform_device *pdev)
 	}
 
 	/* fixup codec name based on HID */
-	i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
-	if (i2c_name) {
+	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
+	if (adev) {
 		snprintf(codec_name, sizeof(codec_name),
-			"%s%s", "i2c-", i2c_name);
+			 "i2c-%s", acpi_dev_name(adev));
+		put_device(&adev->dev);
 		dailink[dai_index].codec_name = codec_name;
 	}
 
diff --git a/sound/soc/intel/boards/bytcht_es8316.c b/sound/soc/intel/boards/bytcht_es8316.c
index d2a7e6ba11ae..6937c00cf63d 100644
--- a/sound/soc/intel/boards/bytcht_es8316.c
+++ b/sound/soc/intel/boards/bytcht_es8316.c
@@ -442,7 +442,7 @@ static int snd_byt_cht_es8316_mc_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct snd_soc_acpi_mach *mach;
 	const char *platform_name;
-	const char *i2c_name = NULL;
+	struct acpi_device *adev;
 	struct device *codec_dev;
 	int dai_index = 0;
 	int i;
@@ -463,10 +463,11 @@ static int snd_byt_cht_es8316_mc_probe(struct platform_device *pdev)
 	}
 
 	/* fixup codec name based on HID */
-	i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
-	if (i2c_name) {
+	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
+	if (adev) {
 		snprintf(codec_name, sizeof(codec_name),
-			"%s%s", "i2c-", i2c_name);
+			 "i2c-%s", acpi_dev_name(adev));
+		put_device(&adev->dev);
 		byt_cht_es8316_dais[dai_index].codec_name = codec_name;
 	}
 
diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c
index 940eb27158da..f9175cf6747e 100644
--- a/sound/soc/intel/boards/bytcr_rt5640.c
+++ b/sound/soc/intel/boards/bytcr_rt5640.c
@@ -1154,7 +1154,7 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
 	struct byt_rt5640_private *priv;
 	struct snd_soc_acpi_mach *mach;
 	const char *platform_name;
-	const char *i2c_name = NULL;
+	struct acpi_device *adev;
 	int ret_val = 0;
 	int dai_index = 0;
 	int i;
@@ -1178,11 +1178,11 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
 	}
 
 	/* fixup codec name based on HID */
-	i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
-	if (i2c_name) {
+	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
+	if (adev) {
 		snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
-			"%s%s", "i2c-", i2c_name);
-
+			 "i2c-%s", acpi_dev_name(adev));
+		put_device(&adev->dev);
 		byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
 	}
 
diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c
index b0a4d297176e..b744add01d12 100644
--- a/sound/soc/intel/boards/bytcr_rt5651.c
+++ b/sound/soc/intel/boards/bytcr_rt5651.c
@@ -867,8 +867,8 @@ static int snd_byt_rt5651_mc_probe(struct platform_device *pdev)
 	struct byt_rt5651_private *priv;
 	struct snd_soc_acpi_mach *mach;
 	const char *platform_name;
+	struct acpi_device *adev;
 	struct device *codec_dev;
-	const char *i2c_name = NULL;
 	const char *hp_swapped;
 	bool is_bytcr = false;
 	int ret_val = 0;
@@ -894,14 +894,16 @@ static int snd_byt_rt5651_mc_probe(struct platform_device *pdev)
 	}
 
 	/* fixup codec name based on HID */
-	i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
-	if (!i2c_name) {
+	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
+	if (adev) {
+		snprintf(byt_rt5651_codec_name, sizeof(byt_rt5651_codec_name),
+			 "i2c-%s", acpi_dev_name(adev));
+		put_device(&adev->dev);
+		byt_rt5651_dais[dai_index].codec_name = byt_rt5651_codec_name;
+	} else {
 		dev_err(&pdev->dev, "Error cannot find '%s' dev\n", mach->id);
 		return -ENODEV;
 	}
-	snprintf(byt_rt5651_codec_name, sizeof(byt_rt5651_codec_name),
-		"%s%s", "i2c-", i2c_name);
-	byt_rt5651_dais[dai_index].codec_name = byt_rt5651_codec_name;
 
 	codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL,
 					    byt_rt5651_codec_name);
diff --git a/sound/soc/intel/boards/cht_bsw_rt5645.c b/sound/soc/intel/boards/cht_bsw_rt5645.c
index cbc2d458483f..32dbeaf1ab94 100644
--- a/sound/soc/intel/boards/cht_bsw_rt5645.c
+++ b/sound/soc/intel/boards/cht_bsw_rt5645.c
@@ -532,7 +532,7 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
 	struct snd_soc_acpi_mach *mach;
 	const char *platform_name;
 	struct cht_mc_private *drv;
-	const char *i2c_name = NULL;
+	struct acpi_device *adev;
 	bool found = false;
 	bool is_bytcr = false;
 	int dai_index = 0;
@@ -573,10 +573,11 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
 		}
 
 	/* fixup codec name based on HID */
-	i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
-	if (i2c_name) {
+	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
+	if (adev) {
 		snprintf(cht_rt5645_codec_name, sizeof(cht_rt5645_codec_name),
-			"%s%s", "i2c-", i2c_name);
+			 "i2c-%s", acpi_dev_name(adev));
+		put_device(&adev->dev);
 		cht_dailink[dai_index].codec_name = cht_rt5645_codec_name;
 	}
 
diff --git a/sound/soc/intel/boards/cht_bsw_rt5672.c b/sound/soc/intel/boards/cht_bsw_rt5672.c
index 3d5a2b3a06f0..0f7770822388 100644
--- a/sound/soc/intel/boards/cht_bsw_rt5672.c
+++ b/sound/soc/intel/boards/cht_bsw_rt5672.c
@@ -401,7 +401,7 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
 	struct cht_mc_private *drv;
 	struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
 	const char *platform_name;
-	const char *i2c_name;
+	struct acpi_device *adev;
 	int i;
 
 	drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
@@ -411,10 +411,11 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
 	strcpy(drv->codec_name, RT5672_I2C_DEFAULT);
 
 	/* fixup codec name based on HID */
-	i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
-	if (i2c_name) {
+	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
+	if (adev) {
 		snprintf(drv->codec_name, sizeof(drv->codec_name),
-			 "i2c-%s", i2c_name);
+			 "i2c-%s", acpi_dev_name(adev));
+		put_device(&adev->dev);
 		for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) {
 			if (!strcmp(cht_dailink[i].codec_name,
 				RT5672_I2C_DEFAULT)) {