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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /sound/soc/sh/sh7760-ac97.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/sh/sh7760-ac97.c')
-rw-r--r--sound/soc/sh/sh7760-ac97.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/sound/soc/sh/sh7760-ac97.c b/sound/soc/sh/sh7760-ac97.c
new file mode 100644
index 0000000000..d267243a15
--- /dev/null
+++ b/sound/soc/sh/sh7760-ac97.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Generic AC97 sound support for SH7760
+//
+// (c) 2007 Manuel Lauss
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <asm/io.h>
+
+#define IPSEL 0xFE400034
+
+SND_SOC_DAILINK_DEFS(ac97,
+ DAILINK_COMP_ARRAY(COMP_CPU("hac-dai.0")), /* HAC0 */
+ DAILINK_COMP_ARRAY(COMP_CODEC("ac97-codec", "ac97-hifi")),
+ DAILINK_COMP_ARRAY(COMP_PLATFORM("sh7760-pcm-audio")));
+
+static struct snd_soc_dai_link sh7760_ac97_dai = {
+ .name = "AC97",
+ .stream_name = "AC97 HiFi",
+ SND_SOC_DAILINK_REG(ac97),
+};
+
+static struct snd_soc_card sh7760_ac97_soc_machine = {
+ .name = "SH7760 AC97",
+ .owner = THIS_MODULE,
+ .dai_link = &sh7760_ac97_dai,
+ .num_links = 1,
+};
+
+static struct platform_device *sh7760_ac97_snd_device;
+
+static int __init sh7760_ac97_init(void)
+{
+ int ret;
+ unsigned short ipsel;
+
+ /* enable both AC97 controllers in pinmux reg */
+ ipsel = __raw_readw(IPSEL);
+ __raw_writew(ipsel | (3 << 10), IPSEL);
+
+ ret = -ENOMEM;
+ sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!sh7760_ac97_snd_device)
+ goto out;
+
+ platform_set_drvdata(sh7760_ac97_snd_device,
+ &sh7760_ac97_soc_machine);
+ ret = platform_device_add(sh7760_ac97_snd_device);
+
+ if (ret)
+ platform_device_put(sh7760_ac97_snd_device);
+
+out:
+ return ret;
+}
+
+static void __exit sh7760_ac97_exit(void)
+{
+ platform_device_unregister(sh7760_ac97_snd_device);
+}
+
+module_init(sh7760_ac97_init);
+module_exit(sh7760_ac97_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine");
+MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>");