Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 100 insertions, 0 deletions

diff --git a/sound/soc/qcom/apq8096.c b/sound/soc/qcom/apq8096.c
new file mode 100644
index 000000000..04f814a0a
--- /dev/null
+++ b/sound/soc/qcom/apq8096.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018, Linaro Limited
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of_device.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/pcm.h>
+#include "common.h"
+
+static int apq8096_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+				      struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *rate = hw_param_interval(params,
+					SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels = hw_param_interval(params,
+					SNDRV_PCM_HW_PARAM_CHANNELS);
+
+	rate->min = rate->max = 48000;
+	channels->min = channels->max = 2;
+
+	return 0;
+}
+
+static void apq8096_add_be_ops(struct snd_soc_card *card)
+{
+	struct snd_soc_dai_link *link = card->dai_link;
+	int i, num_links = card->num_links;
+
+	for (i = 0; i < num_links; i++) {
+		if (link->no_pcm == 1)
+			link->be_hw_params_fixup = apq8096_be_hw_params_fixup;
+		link++;
+	}
+}
+
+static int apq8096_platform_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card;
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	card = kzalloc(sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
+
+	card->dev = dev;
+	card->owner = THIS_MODULE;
+	dev_set_drvdata(dev, card);
+	ret = qcom_snd_parse_of(card);
+	if (ret) {
+		dev_err(dev, "Error parsing OF data\n");
+		goto err;
+	}
+
+	apq8096_add_be_ops(card);
+	ret = snd_soc_register_card(card);
+	if (ret)
+		goto err_card_register;
+
+	return 0;
+
+err_card_register:
+	kfree(card->dai_link);
+err:
+	kfree(card);
+	return ret;
+}
+
+static int apq8096_platform_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = dev_get_drvdata(&pdev->dev);
+
+	snd_soc_unregister_card(card);
+	kfree(card->dai_link);
+	kfree(card);
+
+	return 0;
+}
+
+static const struct of_device_id msm_snd_apq8096_dt_match[] = {
+	{.compatible = "qcom,apq8096-sndcard"},
+	{}
+};
+
+MODULE_DEVICE_TABLE(of, msm_snd_apq8096_dt_match);
+
+static struct platform_driver msm_snd_apq8096_driver = {
+	.probe  = apq8096_platform_probe,
+	.remove = apq8096_platform_remove,
+	.driver = {
+		.name = "msm-snd-apq8096",
+		.of_match_table = msm_snd_apq8096_dt_match,
+	},
+};
+module_platform_driver(msm_snd_apq8096_driver);
+MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
+MODULE_DESCRIPTION("APQ8096 ASoC Machine Driver");
+MODULE_LICENSE("GPL v2");