Fix build of hda_codec.c with older kernels

Define pm_runtime_force_suspend() and _resume() locally in hda_codec.c
build stub.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 51 insertions, 0 deletions

diff --git a/alsa/pci/hda/hda_codec.c b/alsa/pci/hda/hda_codec.c
index 39010da80..c122956e2 100644
--- a/alsa/pci/hda/hda_codec.c
+++ b/alsa/pci/hda/hda_codec.c
@@ -1,2 +1,53 @@
 #include "adriver.h"
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 15, 0)
+#include <linux/device.h>
+static int pm_runtime_force_suspend(struct device *dev);
+static int pm_runtime_force_resume(struct device *dev);
+#endif
 #include "../../alsa-kernel/pci/hda/hda_codec.c"
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 15, 0)
+static int pm_runtime_force_suspend(struct device *dev)
+{
+	int ret = 0;
+
+	pm_runtime_disable(dev);
+	if (pm_runtime_status_suspended(dev))
+		return 0;
+
+	if (!device->driver->pm || !device->driver->pm->runtime_suspend) {
+		ret = -ENOSYS;
+		goto err;
+	}
+
+	ret = device->driver->pm->runtime_suspend(dev);
+	if (ret)
+		goto err;
+
+	pm_runtime_set_suspended(dev);
+	return 0;
+err:
+	pm_runtime_enable(dev);
+	return ret;
+}
+
+static int pm_runtime_force_resume(struct device *dev)
+{
+	int ret = 0;
+
+	if (!device->driver->pm || !device->driver->pm->runtime_resume) {
+		ret = -ENOSYS;
+		goto out;
+	}
+
+	ret = device->driver->pm->runtime_resume(dev);
+	if (ret)
+		goto out;
+
+	pm_runtime_set_active(dev);
+	pm_runtime_mark_last_busy(dev);
+out:
+	pm_runtime_enable(dev);
+	return ret;
+}
+#endif /* <= 3.15 */