Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted

Pull I3C updates from Alexandre Belloni:
 "A new driver this cycle, for the AMD AXI I3C controller.

  There are also new features such as IBI wakeup support, SETAASA device
  discovery and ACPI support for the the DAA methods, meaning we can now
  communicate with the SPD devices on DDR5 modules.

  New driver:
   - AMD AXI I3C master controller

  Subsystem:
   - I3C Common Command Code (CCC) handling improvements, especially
     around GET CCCs
   - SETAASA device discovery support
   - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
     well as I2C devices on I3C bus
   - IBI-based wakeup support

  Drivers:
   - dw: SETAASA support
   - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
     controller support, PIO queue management support for HCI v1.2
   - renesas: improve suspend to RAM support, add runtime PM support"

* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
  i3c: dw: reduce do_daa time if there's no client
  i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
  i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
  i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
  i3c: dw: rename "pclk" to "apb" to match dt-binding
  i3c: dw: make struct dw_i3c_cmd smaller
  i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
  i3c: renesas: Don't register devices when ENTDAA times out
  i3c: master: dw-i3c-master: fix OD timing for first broadcast
  i3c: mipi-i3c-hci: Advertise IBI wakeup capability
  i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
  i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
  i3c: master: Reject IBI requests from non-IBI-capable devices
  i3c: master: Add helper to query bus wakeup requirements
  i3c: master: Report wakeup events for IBIs
  i3c: master: Support IBI-based wakeup capability
  i3c: master: Fix potential UAF in i3c_device_match()
  i3c: master: Fix potential UAF in i3c_device_uevent()
  i3c: Make dev->desc locking assumptions explicit
  i3c: master: Fix use-after-free of master->this
  ...

1 files changed, 411 insertions, 0 deletions

diff --git a/sound/soc/codecs/framer-codec.c b/sound/soc/codecs/framer-codec.c
new file mode 100644
index 000000000..a87a78390
--- /dev/null
+++ b/sound/soc/codecs/framer-codec.c
@@ -0,0 +1,411 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Framer ALSA SoC driver
+//
+// Copyright 2023 CS GROUP France
+//
+// Author: Herve Codina <herve.codina@bootlin.com>
+
+#include <linux/clk.h>
+#include <linux/framer/framer.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <sound/jack.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#define FRAMER_NB_CHANNEL	32
+#define FRAMER_JACK_MASK (SND_JACK_LINEIN | SND_JACK_LINEOUT)
+
+struct framer_codec {
+	struct framer *framer;
+	struct device *dev;
+	struct snd_soc_jack jack;
+	struct notifier_block nb;
+	struct work_struct carrier_work;
+	int max_chan_playback;
+	int max_chan_capture;
+};
+
+static int framer_dai_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
+				   unsigned int rx_mask, int slots, int width)
+{
+	struct framer_codec *framer = snd_soc_component_get_drvdata(dai->component);
+
+	switch (width) {
+	case 0:
+		/* Not set -> default 8 */
+	case 8:
+		break;
+	default:
+		dev_err(dai->dev, "tdm slot width %d not supported\n", width);
+		return -EINVAL;
+	}
+
+	framer->max_chan_playback = hweight32(tx_mask);
+	if (framer->max_chan_playback > FRAMER_NB_CHANNEL) {
+		dev_err(dai->dev, "too many tx slots defined (mask = 0x%x) supported max %d\n",
+			tx_mask, FRAMER_NB_CHANNEL);
+		return -EINVAL;
+	}
+
+	framer->max_chan_capture = hweight32(rx_mask);
+	if (framer->max_chan_capture > FRAMER_NB_CHANNEL) {
+		dev_err(dai->dev, "too many rx slots defined (mask = 0x%x) supported max %d\n",
+			rx_mask, FRAMER_NB_CHANNEL);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/*
+ * The constraints for format/channel is to match with the number of 8bit
+ * time-slots available.
+ */
+static int framer_dai_hw_rule_channels_by_format(struct snd_soc_dai *dai,
+						 struct snd_pcm_hw_params *params,
+						 unsigned int nb_ts)
+{
+	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+	snd_pcm_format_t format = params_format(params);
+	struct snd_interval ch = {0};
+	int width;
+
+	width = snd_pcm_format_physical_width(format);
+	if (width == 8 || width == 16 || width == 32 || width == 64) {
+		ch.max = nb_ts * 8 / width;
+	} else {
+		dev_err(dai->dev, "format physical width %d not supported\n", width);
+		return -EINVAL;
+	}
+
+	ch.min = ch.max ? 1 : 0;
+
+	return snd_interval_refine(c, &ch);
+}
+
+static int framer_dai_hw_rule_playback_channels_by_format(struct snd_pcm_hw_params *params,
+							  struct snd_pcm_hw_rule *rule)
+{
+	struct snd_soc_dai *dai = rule->private;
+	struct framer_codec *framer = snd_soc_component_get_drvdata(dai->component);
+
+	return framer_dai_hw_rule_channels_by_format(dai, params, framer->max_chan_playback);
+}
+
+static int framer_dai_hw_rule_capture_channels_by_format(struct snd_pcm_hw_params *params,
+							 struct snd_pcm_hw_rule *rule)
+{
+	struct snd_soc_dai *dai = rule->private;
+	struct framer_codec *framer = snd_soc_component_get_drvdata(dai->component);
+
+	return framer_dai_hw_rule_channels_by_format(dai, params, framer->max_chan_capture);
+}
+
+static int framer_dai_hw_rule_format_by_channels(struct snd_soc_dai *dai,
+						 struct snd_pcm_hw_params *params,
+						 unsigned int nb_ts)
+{
+	struct snd_mask *f_old = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+	unsigned int channels = params_channels(params);
+	unsigned int slot_width;
+	snd_pcm_format_t format;
+	struct snd_mask f_new;
+
+	if (!channels || channels > nb_ts) {
+		dev_err(dai->dev, "channels %u not supported\n", nb_ts);
+		return -EINVAL;
+	}
+
+	slot_width = (nb_ts / channels) * 8;
+
+	snd_mask_none(&f_new);
+	pcm_for_each_format(format) {
+		if (snd_mask_test_format(f_old, format)) {
+			if (snd_pcm_format_physical_width(format) <= slot_width)
+				snd_mask_set_format(&f_new, format);
+		}
+	}
+
+	return snd_mask_refine(f_old, &f_new);
+}
+
+static int framer_dai_hw_rule_playback_format_by_channels(struct snd_pcm_hw_params *params,
+							  struct snd_pcm_hw_rule *rule)
+{
+	struct snd_soc_dai *dai = rule->private;
+	struct framer_codec *framer = snd_soc_component_get_drvdata(dai->component);
+
+	return framer_dai_hw_rule_format_by_channels(dai, params, framer->max_chan_playback);
+}
+
+static int framer_dai_hw_rule_capture_format_by_channels(struct snd_pcm_hw_params *params,
+							 struct snd_pcm_hw_rule *rule)
+{
+	struct snd_soc_dai *dai = rule->private;
+	struct framer_codec *framer = snd_soc_component_get_drvdata(dai->component);
+
+	return framer_dai_hw_rule_format_by_channels(dai, params, framer->max_chan_capture);
+}
+
+static u64 framer_formats(u8 nb_ts)
+{
+	unsigned int format_width;
+	unsigned int chan_width;
+	snd_pcm_format_t format;
+	u64 formats_mask;
+
+	if (!nb_ts)
+		return 0;
+
+	formats_mask = 0;
+	chan_width = nb_ts * 8;
+	pcm_for_each_format(format) {
+		/* Support physical width multiple of 8bit */
+		format_width = snd_pcm_format_physical_width(format);
+		if (format_width == 0 || format_width % 8)
+			continue;
+
+		/*
+		 * And support physical width that can fit N times in the
+		 * channel
+		 */
+		if (format_width > chan_width || chan_width % format_width)
+			continue;
+
+		formats_mask |= pcm_format_to_bits(format);
+	}
+	return formats_mask;
+}
+
+static int framer_dai_startup(struct snd_pcm_substream *substream,
+			      struct snd_soc_dai *dai)
+{
+	struct framer_codec *framer = snd_soc_component_get_drvdata(dai->component);
+	snd_pcm_hw_rule_func_t hw_rule_channels_by_format;
+	snd_pcm_hw_rule_func_t hw_rule_format_by_channels;
+	unsigned int frame_bits;
+	u64 format;
+	int ret;
+
+	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+		format = framer_formats(framer->max_chan_capture);
+		hw_rule_channels_by_format = framer_dai_hw_rule_capture_channels_by_format;
+		hw_rule_format_by_channels = framer_dai_hw_rule_capture_format_by_channels;
+		frame_bits = framer->max_chan_capture * 8;
+	} else {
+		format = framer_formats(framer->max_chan_playback);
+		hw_rule_channels_by_format = framer_dai_hw_rule_playback_channels_by_format;
+		hw_rule_format_by_channels = framer_dai_hw_rule_playback_format_by_channels;
+		frame_bits = framer->max_chan_playback * 8;
+	}
+
+	ret = snd_pcm_hw_constraint_mask64(substream->runtime,
+					   SNDRV_PCM_HW_PARAM_FORMAT, format);
+	if (ret) {
+		dev_err(dai->dev, "Failed to add format constraint (%d)\n", ret);
+		return ret;
+	}
+
+	ret = snd_pcm_hw_rule_add(substream->runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+				  hw_rule_channels_by_format, dai,
+				  SNDRV_PCM_HW_PARAM_FORMAT, -1);
+	if (ret) {
+		dev_err(dai->dev, "Failed to add channels rule (%d)\n", ret);
+		return ret;
+	}
+
+	ret = snd_pcm_hw_rule_add(substream->runtime, 0,  SNDRV_PCM_HW_PARAM_FORMAT,
+				  hw_rule_format_by_channels, dai,
+				  SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+	if (ret) {
+		dev_err(dai->dev, "Failed to add format rule (%d)\n", ret);
+		return ret;
+	}
+
+	ret = snd_pcm_hw_constraint_single(substream->runtime,
+					   SNDRV_PCM_HW_PARAM_FRAME_BITS,
+					   frame_bits);
+	if (ret < 0) {
+		dev_err(dai->dev, "Failed to add frame_bits constraint (%d)\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const u64 framer_dai_formats = SND_SOC_POSSIBLE_DAIFMT_DSP_B;
+
+static const struct snd_soc_dai_ops framer_dai_ops = {
+	.startup	= framer_dai_startup,
+	.set_tdm_slot	= framer_dai_set_tdm_slot,
+	.auto_selectable_formats     = &framer_dai_formats,
+	.num_auto_selectable_formats = 1,
+};
+
+static struct snd_soc_dai_driver framer_dai_driver = {
+	.name = "framer",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 1,
+		.channels_max = FRAMER_NB_CHANNEL,
+		.rates = SNDRV_PCM_RATE_8000,
+		.formats = U64_MAX, /* Will be refined on DAI .startup() */
+	},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = FRAMER_NB_CHANNEL,
+		.rates = SNDRV_PCM_RATE_8000,
+		.formats = U64_MAX, /* Will be refined on DAI .startup() */
+	},
+	.ops = &framer_dai_ops,
+};
+
+static void framer_carrier_work(struct work_struct *work)
+{
+	struct framer_codec *framer = container_of(work, struct framer_codec, carrier_work);
+	struct framer_status framer_status;
+	int jack_status;
+	int ret;
+
+	ret = framer_get_status(framer->framer, &framer_status);
+	if (ret) {
+		dev_err(framer->dev, "get framer status failed (%d)\n", ret);
+		return;
+	}
+
+	jack_status = framer_status.link_is_on ? FRAMER_JACK_MASK : 0;
+	snd_soc_jack_report(&framer->jack, jack_status, FRAMER_JACK_MASK);
+}
+
+static int framer_carrier_notifier(struct notifier_block *nb, unsigned long action,
+				   void *data)
+{
+	struct framer_codec *framer = container_of(nb, struct framer_codec, nb);
+
+	switch (action) {
+	case FRAMER_EVENT_STATUS:
+		queue_work(system_power_efficient_wq, &framer->carrier_work);
+		break;
+	default:
+		return NOTIFY_DONE;
+	}
+
+	return NOTIFY_OK;
+}
+
+static int framer_component_probe(struct snd_soc_component *component)
+{
+	struct framer_codec *framer = snd_soc_component_get_drvdata(component);
+	struct framer_status status;
+	char *name;
+	int ret;
+
+	INIT_WORK(&framer->carrier_work, framer_carrier_work);
+
+	name = "carrier";
+	if (component->name_prefix) {
+		name = kasprintf(GFP_KERNEL, "%s carrier", component->name_prefix);
+		if (!name)
+			return -ENOMEM;
+	}
+
+	ret = snd_soc_card_jack_new(component->card, name, FRAMER_JACK_MASK, &framer->jack);
+	if (component->name_prefix)
+		kfree(name); /* A copy is done by snd_soc_card_jack_new */
+	if (ret) {
+		dev_err(component->dev, "Cannot create jack\n");
+		return ret;
+	}
+
+	ret = framer_init(framer->framer);
+	if (ret) {
+		dev_err(component->dev, "framer init failed (%d)\n", ret);
+		return ret;
+	}
+
+	ret = framer_power_on(framer->framer);
+	if (ret) {
+		dev_err(component->dev, "framer power-on failed (%d)\n", ret);
+		goto framer_exit;
+	}
+
+	/* Be sure that get_status is supported */
+	ret = framer_get_status(framer->framer, &status);
+	if (ret) {
+		dev_err(component->dev, "get framer status failed (%d)\n", ret);
+		goto framer_power_off;
+	}
+
+	framer->nb.notifier_call = framer_carrier_notifier;
+	ret = framer_notifier_register(framer->framer, &framer->nb);
+	if (ret) {
+		dev_err(component->dev, "Cannot register event notifier\n");
+		goto framer_power_off;
+	}
+
+	/* Queue work to set the initial value */
+	queue_work(system_power_efficient_wq, &framer->carrier_work);
+
+	return 0;
+
+framer_power_off:
+	framer_power_off(framer->framer);
+framer_exit:
+	framer_exit(framer->framer);
+	return ret;
+}
+
+static void framer_component_remove(struct snd_soc_component *component)
+{
+	struct framer_codec *framer = snd_soc_component_get_drvdata(component);
+
+	framer_notifier_unregister(framer->framer, &framer->nb);
+	cancel_work_sync(&framer->carrier_work);
+	framer_power_off(framer->framer);
+	framer_exit(framer->framer);
+}
+
+static const struct snd_soc_component_driver framer_component_driver = {
+	.probe		= framer_component_probe,
+	.remove		= framer_component_remove,
+	.endianness	= 1,
+};
+
+static int framer_codec_probe(struct platform_device *pdev)
+{
+	struct framer_codec *framer;
+
+	framer = devm_kzalloc(&pdev->dev, sizeof(*framer), GFP_KERNEL);
+	if (!framer)
+		return -ENOMEM;
+
+	framer->dev = &pdev->dev;
+
+	/* Get framer from parents node */
+	framer->framer = devm_framer_get(&pdev->dev, NULL);
+	if (IS_ERR(framer->framer))
+		return dev_err_probe(&pdev->dev, PTR_ERR(framer->framer), "get framer failed\n");
+
+	platform_set_drvdata(pdev, framer);
+
+	return devm_snd_soc_register_component(&pdev->dev, &framer_component_driver,
+					       &framer_dai_driver, 1);
+}
+
+static struct platform_driver framer_codec_driver = {
+	.driver = {
+		.name = "framer-codec",
+	},
+	.probe = framer_codec_probe,
+};
+module_platform_driver(framer_codec_driver);
+
+MODULE_AUTHOR("Herve Codina <herve.codina@bootlin.com>");
+MODULE_DESCRIPTION("FRAMER ALSA SoC driver");
+MODULE_LICENSE("GPL");