Linux-libre 4.6.2-gnu

3 files changed, 44 insertions, 5 deletions

diff --git a/sound/soc/intel/common/sst-acpi.h b/sound/soc/intel/common/sst-acpi.h
index 3ee3b7ab5..4dcfb7e5e 100644
--- a/sound/soc/intel/common/sst-acpi.h
+++ b/sound/soc/intel/common/sst-acpi.h
@@ -14,6 +14,9 @@
 
 #include <linux/acpi.h>
 
+/* translation fron HID to I2C name, needed for DAI codec_name */
+const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]);
+
 /* acpi match */
 struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines);
 
diff --git a/sound/soc/intel/common/sst-dsp-priv.h b/sound/soc/intel/common/sst-dsp-priv.h
index 81aa1ed64..97dc1ae05 100644
--- a/sound/soc/intel/common/sst-dsp-priv.h
+++ b/sound/soc/intel/common/sst-dsp-priv.h
@@ -317,6 +317,7 @@ struct sst_dsp {
 	struct skl_cl_dev cl_dev;
 	u32 intr_status;
 	const struct firmware *fw;
+	struct snd_dma_buffer dmab;
 };
 
 /* Size optimised DRAM/IRAM memcpy */
diff --git a/sound/soc/intel/common/sst-match-acpi.c b/sound/soc/intel/common/sst-match-acpi.c
index 3b4539d21..789843307 100644
--- a/sound/soc/intel/common/sst-match-acpi.c
+++ b/sound/soc/intel/common/sst-match-acpi.c
@@ -13,17 +13,53 @@
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  * more details.
  */
-#include <linux/acpi.h>
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
 
 #include "sst-acpi.h"
 
+static acpi_status sst_acpi_find_name(acpi_handle handle, u32 level,
+				      void *context, void **ret)
+{
+	struct acpi_device *adev;
+	const char *name = NULL;
+
+	if (acpi_bus_get_device(handle, &adev))
+		return AE_OK;
+
+	if (adev->status.present && adev->status.functional) {
+		name = acpi_dev_name(adev);
+		*(const char **)ret = name;
+		return AE_CTRL_TERMINATE;
+	}
+
+	return AE_OK;
+}
+
+const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN])
+{
+	const char *name = NULL;
+	acpi_status status;
+
+	status = acpi_get_devices(hid, sst_acpi_find_name, NULL,
+				  (void **)&name);
+
+	if (ACPI_FAILURE(status) || name[0] == '\0')
+		return NULL;
+
+	return name;
+}
+EXPORT_SYMBOL_GPL(sst_acpi_find_name_from_hid);
+
 static acpi_status sst_acpi_mach_match(acpi_handle handle, u32 level,
 				       void *context, void **ret)
 {
+	unsigned long long sta;
+	acpi_status status;
+
 	*(bool *)context = true;
+	status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
+	if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_PRESENT))
+		*(bool *)context = false;
+
 	return AE_OK;
 }
 
@@ -37,7 +73,6 @@ struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines)
 						  sst_acpi_mach_match,
 						  &found, NULL)) && found)
 			return mach;
-
 	return NULL;
 }
 EXPORT_SYMBOL_GPL(sst_acpi_find_machine);