Merge tag 'asoc-v5.20' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v5.20

This is a big release thus far and there will probably be more changes
to come, it's a combination of a larger than usual crop of new drivers
and some subsysetm wide cleanups from Charles rather than anything
structural.  The SOF and Intel DSP code both also continue to be very
actively developed.

 - Restructing of the set_fmt() callbacks to be specified in terms of
   the device rather than with semantics depending on if the device is
   supposed to be a CODEC or SoC, making things clearer in situations
   like CODEC to CODEC links.
 - Clean up of the way we flag which DAI naming scheme we use to reflect
   the progress that's been made modernising things.
 - Merge of more of the Intel AVS driver stack, including some board
   integrations.
 - New version 4 mechanism for communication with SOF DSPs.
 - Suppoort for dynamically selecting the PLL to use at runtime on i.MX
   platforms.
 - Improvements for CODEC to CODEC support in the generic cards.
 - Support for AMD Jadeite and various machines, Intel MetorLake DSPs,
   Mediatek MT8186 DSPs and MT6366, nVidia Tegra MDDRC, OPE and PEQ, NXP
   TFA9890, Qualcomm SDM845, WCD9335 and WAS883x, and Texas Instruments
   TAS2780.

1 files changed, 180 insertions, 0 deletions

diff --git a/sound/soc/intel/avs/boards/i2s_test.c b/sound/soc/intel/avs/boards/i2s_test.c
new file mode 100644
index 000000000000..8f0fd87bc866
--- /dev/null
+++ b/sound/soc/intel/avs/boards/i2s_test.c
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
+//
+// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
+//          Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
+//
+
+#include <linux/module.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include <sound/soc-dapm.h>
+
+static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
+			       struct snd_soc_dai_link **dai_link)
+{
+	struct snd_soc_dai_link_component *platform;
+	struct snd_soc_dai_link *dl;
+
+	dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
+	platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
+	if (!dl || !platform)
+		return -ENOMEM;
+
+	platform->name = platform_name;
+
+	dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
+	dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
+	dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
+	if (!dl->name || !dl->cpus || !dl->codecs)
+		return -ENOMEM;
+
+	dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port);
+	dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "snd-soc-dummy");
+	dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, "snd-soc-dummy-dai");
+	if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
+		return -ENOMEM;
+
+	dl->num_cpus = 1;
+	dl->num_codecs = 1;
+	dl->platforms = platform;
+	dl->num_platforms = 1;
+	dl->id = 0;
+	dl->nonatomic = 1;
+	dl->no_pcm = 1;
+	dl->dpcm_capture = 1;
+	dl->dpcm_playback = 1;
+
+	*dai_link = dl;
+
+	return 0;
+}
+
+static int avs_create_dapm_routes(struct device *dev, int ssp_port,
+				  struct snd_soc_dapm_route **routes, int *num_routes)
+{
+	struct snd_soc_dapm_route *dr;
+	const int num_dr = 2;
+
+	dr = devm_kcalloc(dev, num_dr, sizeof(*dr), GFP_KERNEL);
+	if (!dr)
+		return -ENOMEM;
+
+	dr[0].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%dpb", ssp_port);
+	dr[0].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Tx", ssp_port);
+	if (!dr[0].sink || !dr[0].source)
+		return -ENOMEM;
+
+	dr[1].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Rx", ssp_port);
+	dr[1].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%dcp", ssp_port);
+	if (!dr[1].sink || !dr[1].source)
+		return -ENOMEM;
+
+	*routes = dr;
+	*num_routes = num_dr;
+
+	return 0;
+}
+
+static int avs_create_dapm_widgets(struct device *dev, int ssp_port,
+				   struct snd_soc_dapm_widget **widgets, int *num_widgets)
+{
+	struct snd_soc_dapm_widget *dw;
+	const int num_dw = 2;
+
+	dw = devm_kcalloc(dev, num_dw, sizeof(*dw), GFP_KERNEL);
+	if (!dw)
+		return -ENOMEM;
+
+	dw[0].id = snd_soc_dapm_hp;
+	dw[0].reg = SND_SOC_NOPM;
+	dw[0].name = devm_kasprintf(dev, GFP_KERNEL, "ssp%dpb", ssp_port);
+	if (!dw[0].name)
+		return -ENOMEM;
+
+	dw[1].id = snd_soc_dapm_mic;
+	dw[1].reg = SND_SOC_NOPM;
+	dw[1].name = devm_kasprintf(dev, GFP_KERNEL, "ssp%dcp", ssp_port);
+	if (!dw[1].name)
+		return -ENOMEM;
+
+	*widgets = dw;
+	*num_widgets = num_dw;
+
+	return 0;
+}
+
+static int avs_i2s_test_probe(struct platform_device *pdev)
+{
+	struct snd_soc_dapm_widget *widgets;
+	struct snd_soc_dapm_route *routes;
+	struct snd_soc_dai_link *dai_link;
+	struct snd_soc_acpi_mach *mach;
+	struct snd_soc_card *card;
+	struct device *dev = &pdev->dev;
+	const char *pname;
+	int num_routes, num_widgets;
+	int ssp_port, ret;
+
+	mach = dev_get_platdata(dev);
+	pname = mach->mach_params.platform;
+	ssp_port = __ffs(mach->mach_params.i2s_link_mask);
+
+	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
+
+	card->name = devm_kasprintf(dev, GFP_KERNEL, "ssp%d-loopback", ssp_port);
+	if (!card->name)
+		return -ENOMEM;
+
+	ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link);
+	if (ret) {
+		dev_err(dev, "Failed to create dai link: %d\n", ret);
+		return ret;
+	}
+
+	ret = avs_create_dapm_routes(dev, ssp_port, &routes, &num_routes);
+	if (ret) {
+		dev_err(dev, "Failed to create dapm routes: %d\n", ret);
+		return ret;
+	}
+
+	ret = avs_create_dapm_widgets(dev, ssp_port, &widgets, &num_widgets);
+	if (ret) {
+		dev_err(dev, "Failed to create dapm widgets: %d\n", ret);
+		return ret;
+	}
+
+	card->dev = dev;
+	card->owner = THIS_MODULE;
+	card->dai_link = dai_link;
+	card->num_links = 1;
+	card->dapm_routes = routes;
+	card->num_dapm_routes = num_routes;
+	card->dapm_widgets = widgets;
+	card->num_dapm_widgets = num_widgets;
+	card->fully_routed = true;
+
+	ret = snd_soc_fixup_dai_links_platform_name(card, pname);
+	if (ret)
+		return ret;
+
+	return devm_snd_soc_register_card(dev, card);
+}
+
+static struct platform_driver avs_i2s_test_driver = {
+	.probe = avs_i2s_test_probe,
+	.driver = {
+		.name = "avs_i2s_test",
+		.pm = &snd_soc_pm_ops,
+	},
+};
+
+module_platform_driver(avs_i2s_test_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:avs_i2s_test");