Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-tracegrafted

Pull tracing fixes from Steven Rostedt:

 - Fix error output of boot instance creation failure

   Currently if a boot instance creation fails, instead of printing out
   the name of the instance that failed, it prints "(null)". That is
   because it prints "cur_str" that had already been processed by
   strsep(). Print the saved name instead.

   While at it, print the error code of the failure.

 - Fix use-after-free for same named historgrams

   Histograms can be named so that they can be used in multiple events.
   But if the named histogram has a variable attached, the second event
   that uses the named histogram which duplicates it and needs to free
   the original after duplication leaves the old variable in place and
   still visible. If another histogram uses than variable, it will use
   the stale one which will try to reference the freed duplicate
   histogram and crash the kernel.

   Free the duplicate variables along with the duplicated histogram
   data.

 - Check return value of kthread_run() in event self test

   The events self tests uses a kthread for testing but does not check
   if it succeeded in creating a kthread. If the kthread creation were
   to fail, the code will still try to call kthread_stop() on the error
   returned.

 - Fix race between reading trace_pipe and updating subbuffer size

   If a user is reading the trace_pipe file at the same time they update
   the ring buffer sub-buffer size, can cause the trace_pipe read to
   read stale data. Add trace_access_lock() around updating the ring
   buffer sub-buffer size.

 - Fix eventfs_inode on failure path in creation of the events directory

   In the creation of the "events" directory, if after allocating the
   eventfs_inode a failure is detected, it calls cleanup_ei() which
   calls free_ei(). The free_ei() will test if eventfs_inode being freed
   has no children. It is a bug if it does. But on the failure case of
   the creation of the "events" directory, the children lists have not
   yet been initialized and the free will trigger a warning because
   list_empty() on an uninitialized list returns false.

   Move the initialization into init_ei() where it makes more sense and
   makes sure that a created eventfs_inode has its lists initialized
   upon creation.

 - Check return value of kthread_run() in ftrace direct sample code

   The sample code that shows how to use the ftrace direct calls does
   not test the return of kthread_run() to see if it succeeds. Return a
   failure if the kthread_run() doesn't succeed.

 - Clear user events state on fork in case of alloc failure

   On fork, the child gets a pointer to the parent's user events state.
   It makes a copy of it then updates the child's pointer to it. But if
   the allocation fails, the duplication function leaves the child with
   a pointer to its parent's descriptor. When the child cleans up its
   data, it will free the parent's descriptor while the parent is still
   using it.

   In the duplication function, set the child's user_event_mm to NULL
   before testing if the allocation succeeded, and when it exits it will
   not free the parent's descriptor.

 - Fix retry exhaustion in simple ring buffer reader swap

   simple_ring_buffer_swap_reader_page() starts with retry set to 8 and
   post-decrements it only after a failed link replacement. On the final
   attempt, a successful replacement leaves retry at zero, while a
   failed replacement leaves it at -1.

   But the check for success expects the retry value to be non-zero and
   exits with an error on zero. This is the opposite result. Fix it.

 - Fail nicely when the remote swap_reader_page() returns an error

   Currently, if the swap_reader_page() of a remote buffer fails, it
   triggers a WARN_ON_ONCE() and continues normally. Instead, have it
   exit with an error and a pr_warn() print instead of a full WARNING.

* tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ring-buffer: Stop remote reader update when page swap fails
  tracing: Fix retry exhaustion in simple ring buffer reader swap
  tracing/user_events: Clear copied tracing state before fork duplication
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify
  eventfs: Initialize ei->children and ei->list in init_ei()
  tracing: Fix use-after-free in trace_pipe read on sub-buffer order change
  tracing: Fix crash passing ERR_PTR to kthread_stop()
  tracing: Fix use-after-free with same-name named triggers
  tracing: Fix logged instance name on creation failure

1 files changed, 514 insertions, 0 deletions

diff --git a/sound/soc/codecs/rt712-sdca-sdw.c b/sound/soc/codecs/rt712-sdca-sdw.c
new file mode 100644
index 000000000..c50e74e20
--- /dev/null
+++ b/sound/soc/codecs/rt712-sdca-sdw.c
@@ -0,0 +1,514 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// rt712-sdca-sdw.c -- rt712 SDCA ALSA SoC audio driver
+//
+// Copyright(c) 2023 Realtek Semiconductor Corp.
+//
+//
+
+#include <linux/cleanup.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/soundwire/sdw_registers.h>
+#include "rt712-sdca.h"
+#include "rt712-sdca-sdw.h"
+
+static bool rt712_sdca_readable_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case 0x201a ... 0x201f:
+	case 0x2029 ... 0x202a:
+	case 0x202d ... 0x2034:
+	case 0x2230 ... 0x2232:
+	case 0x2f01 ... 0x2f0a:
+	case 0x2f35 ... 0x2f36:
+	case 0x2f50:
+	case 0x2f54:
+	case 0x2f58 ... 0x2f5d:
+	case 0x3201:
+	case 0x320c:
+	case 0x3301 ... 0x3303:
+	case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_GE49, RT712_SDCA_CTL_SELECTED_MODE, 0):
+	case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_GE49, RT712_SDCA_CTL_DETECTED_MODE, 0):
+	case SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT_HID01, RT712_SDCA_CTL_HIDTX_CURRENT_OWNER, 0) ...
+		SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT_HID01, RT712_SDCA_CTL_HIDTX_MESSAGE_LENGTH, 0):
+	case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
+	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
+	case SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
+	case SDW_SDCA_CTL(FUNC_NUM_AMP, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
+	case RT712_BUF_ADDR_HID1 ... RT712_BUF_ADDR_HID2:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool rt712_sdca_volatile_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case 0x201b:
+	case 0x201c:
+	case 0x201d:
+	case 0x201f:
+	case 0x202d ... 0x202f:
+	case 0x2230:
+	case 0x2f01:
+	case 0x2f35:
+	case 0x320c:
+	case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_GE49, RT712_SDCA_CTL_DETECTED_MODE, 0):
+	case SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT_HID01, RT712_SDCA_CTL_HIDTX_CURRENT_OWNER, 0) ...
+		SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT_HID01, RT712_SDCA_CTL_HIDTX_MESSAGE_LENGTH, 0):
+	case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
+	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
+	case SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
+	case SDW_SDCA_CTL(FUNC_NUM_AMP, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
+	case RT712_BUF_ADDR_HID1 ... RT712_BUF_ADDR_HID2:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool rt712_sdca_mbq_readable_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case 0x2000000 ... 0x200008e:
+	case 0x5300000 ... 0x530000e:
+	case 0x5400000 ... 0x540000e:
+	case 0x5600000 ... 0x5600008:
+	case 0x5700000 ... 0x570000d:
+	case 0x5800000 ... 0x5800021:
+	case 0x5900000 ... 0x5900028:
+	case 0x5a00000 ... 0x5a00009:
+	case 0x5b00000 ... 0x5b00051:
+	case 0x5c00000 ... 0x5c0009a:
+	case 0x5d00000 ... 0x5d00009:
+	case 0x5f00000 ... 0x5f00030:
+	case 0x6100000 ... 0x61000f1:
+	case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_USER_FU05, RT712_SDCA_CTL_FU_VOLUME, CH_01):
+	case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_USER_FU05, RT712_SDCA_CTL_FU_VOLUME, CH_02):
+	case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_USER_FU0F, RT712_SDCA_CTL_FU_VOLUME, CH_01):
+	case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_USER_FU0F, RT712_SDCA_CTL_FU_VOLUME, CH_02):
+	case SDW_SDCA_CTL(FUNC_NUM_AMP, RT712_SDCA_ENT_USER_FU06, RT712_SDCA_CTL_FU_VOLUME, CH_01):
+	case SDW_SDCA_CTL(FUNC_NUM_AMP, RT712_SDCA_ENT_USER_FU06, RT712_SDCA_CTL_FU_VOLUME, CH_02):
+	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_01):
+	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_02):
+	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_03):
+	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_04):
+	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_01):
+	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_02):
+	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_03):
+	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_04):
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool rt712_sdca_mbq_volatile_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case 0x2000000:
+	case 0x200001a:
+	case 0x2000020:
+	case 0x2000024:
+	case 0x2000030:
+	case 0x2000046:
+	case 0x200008a:
+	case 0x5800000:
+	case 0x5800001:
+	case 0x6100008:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config rt712_sdca_regmap = {
+	.reg_bits = 32,
+	.val_bits = 8,
+	.readable_reg = rt712_sdca_readable_register,
+	.volatile_reg = rt712_sdca_volatile_register,
+	.max_register = 0x44ffffff,
+	.reg_defaults = rt712_sdca_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(rt712_sdca_reg_defaults),
+	.cache_type = REGCACHE_MAPLE,
+	.use_single_read = true,
+	.use_single_write = true,
+};
+
+static const struct regmap_config rt712_sdca_mbq_regmap = {
+	.name = "sdw-mbq",
+	.reg_bits = 32,
+	.val_bits = 16,
+	.readable_reg = rt712_sdca_mbq_readable_register,
+	.volatile_reg = rt712_sdca_mbq_volatile_register,
+	.max_register = 0x41000312,
+	.reg_defaults = rt712_sdca_mbq_defaults,
+	.num_reg_defaults = ARRAY_SIZE(rt712_sdca_mbq_defaults),
+	.cache_type = REGCACHE_MAPLE,
+	.use_single_read = true,
+	.use_single_write = true,
+};
+
+static int rt712_sdca_update_status(struct sdw_slave *slave,
+				enum sdw_slave_status status)
+{
+	struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);
+
+	if (status == SDW_SLAVE_UNATTACHED)
+		rt712->hw_init = false;
+
+	if (status == SDW_SLAVE_ATTACHED) {
+		if (rt712->hs_jack) {
+			/*
+			 * Due to the SCP_SDCA_INTMASK will be cleared by any reset, and then
+			 * if the device attached again, we will need to set the setting back.
+			 * It could avoid losing the jack detection interrupt.
+			 * This also could sync with the cache value as the rt712_sdca_jack_init set.
+			 */
+			sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INTMASK1,
+				SDW_SCP_SDCA_INTMASK_SDCA_0);
+			sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INTMASK2,
+				SDW_SCP_SDCA_INTMASK_SDCA_8);
+		}
+	}
+
+	/*
+	 * Perform initialization only if slave status is present and
+	 * hw_init flag is false
+	 */
+	if (rt712->hw_init || status != SDW_SLAVE_ATTACHED)
+		return 0;
+
+	/* perform I/O transfers required for Slave initialization */
+	return rt712_sdca_io_init(&slave->dev, slave);
+}
+
+static int rt712_sdca_read_prop(struct sdw_slave *slave)
+{
+	struct sdw_slave_prop *prop = &slave->prop;
+	int nval;
+	int i, j;
+	u32 bit;
+	unsigned long addr;
+	struct sdw_dpn_prop *dpn;
+
+	sdw_slave_read_prop(slave);
+
+	prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
+	prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
+
+	prop->paging_support = true;
+
+	/* first we need to allocate memory for set bits in port lists */
+	prop->source_ports = BIT(8) | BIT(4); /* BITMAP: 100010000 */
+	prop->sink_ports = BIT(3) | BIT(1); /* BITMAP:  00001010 */
+
+	nval = hweight32(prop->source_ports);
+	prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
+		sizeof(*prop->src_dpn_prop), GFP_KERNEL);
+	if (!prop->src_dpn_prop)
+		return -ENOMEM;
+
+	i = 0;
+	dpn = prop->src_dpn_prop;
+	addr = prop->source_ports;
+	for_each_set_bit(bit, &addr, 32) {
+		dpn[i].num = bit;
+		dpn[i].type = SDW_DPN_FULL;
+		dpn[i].simple_ch_prep_sm = true;
+		dpn[i].ch_prep_timeout = 10;
+		i++;
+	}
+
+	/* do this again for sink now */
+	nval = hweight32(prop->sink_ports);
+	prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,
+		sizeof(*prop->sink_dpn_prop), GFP_KERNEL);
+	if (!prop->sink_dpn_prop)
+		return -ENOMEM;
+
+	j = 0;
+	dpn = prop->sink_dpn_prop;
+	addr = prop->sink_ports;
+	for_each_set_bit(bit, &addr, 32) {
+		dpn[j].num = bit;
+		dpn[j].type = SDW_DPN_FULL;
+		dpn[j].simple_ch_prep_sm = true;
+		dpn[j].ch_prep_timeout = 10;
+		j++;
+	}
+
+	/* set the timeout values */
+	prop->clk_stop_timeout = 1380;
+
+	/* wake-up event */
+	prop->wake_capable = 1;
+
+	return 0;
+}
+
+static int rt712_sdca_interrupt_callback(struct sdw_slave *slave,
+					struct sdw_slave_intr_status *status)
+{
+	struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);
+	int ret, stat;
+	int count = 0, retry = 3;
+	unsigned int sdca_cascade, scp_sdca_stat1, scp_sdca_stat2 = 0;
+
+	dev_dbg(&slave->dev,
+		"%s control_port_stat=%x, sdca_cascade=%x", __func__,
+		status->control_port, status->sdca_cascade);
+
+	if (cancel_delayed_work_sync(&rt712->jack_detect_work)) {
+		dev_warn(&slave->dev, "%s the pending delayed_work was cancelled", __func__);
+		/* avoid the HID owner doesn't change to device */
+		if (rt712->scp_sdca_stat2)
+			scp_sdca_stat2 = rt712->scp_sdca_stat2;
+	}
+
+	/*
+	 * The critical section below intentionally protects a rather large piece of code.
+	 * We don't want to allow the system suspend to disable an interrupt while we are
+	 * processing it, which could be problematic given the quirky SoundWire interrupt
+	 * scheme. We do want however to prevent new workqueues from being scheduled if
+	 * the disable_irq flag was set during system suspend.
+	 */
+	mutex_lock(&rt712->disable_irq_lock);
+
+	ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);
+	if (ret < 0)
+		goto io_error;
+	rt712->scp_sdca_stat1 = ret;
+	ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);
+	if (ret < 0)
+		goto io_error;
+	rt712->scp_sdca_stat2 = ret;
+	if (scp_sdca_stat2)
+		rt712->scp_sdca_stat2 |= scp_sdca_stat2;
+
+	do {
+		/* clear flag */
+		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);
+		if (ret < 0)
+			goto io_error;
+		if (ret & SDW_SCP_SDCA_INTMASK_SDCA_0) {
+			ret = sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INT1,
+						SDW_SCP_SDCA_INTMASK_SDCA_0);
+			if (ret < 0)
+				goto io_error;
+		}
+		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);
+		if (ret < 0)
+			goto io_error;
+		if (ret & SDW_SCP_SDCA_INTMASK_SDCA_8) {
+			ret = sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INT2,
+						SDW_SCP_SDCA_INTMASK_SDCA_8);
+			if (ret < 0)
+				goto io_error;
+		}
+
+		/* check if flag clear or not */
+		ret = sdw_read_no_pm(rt712->slave, SDW_DP0_INT);
+		if (ret < 0)
+			goto io_error;
+		sdca_cascade = ret & SDW_DP0_SDCA_CASCADE;
+
+		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);
+		if (ret < 0)
+			goto io_error;
+		scp_sdca_stat1 = ret & SDW_SCP_SDCA_INTMASK_SDCA_0;
+
+		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);
+		if (ret < 0)
+			goto io_error;
+		scp_sdca_stat2 = ret & SDW_SCP_SDCA_INTMASK_SDCA_8;
+
+		stat = scp_sdca_stat1 || scp_sdca_stat2 || sdca_cascade;
+
+		count++;
+	} while (stat != 0 && count < retry);
+
+	if (stat)
+		dev_warn(&slave->dev,
+			"%s scp_sdca_stat1=0x%x, scp_sdca_stat2=0x%x\n", __func__,
+			rt712->scp_sdca_stat1, rt712->scp_sdca_stat2);
+
+	if (status->sdca_cascade && !rt712->disable_irq)
+		mod_delayed_work(system_power_efficient_wq,
+			&rt712->jack_detect_work, msecs_to_jiffies(30));
+
+	mutex_unlock(&rt712->disable_irq_lock);
+
+	return 0;
+
+io_error:
+	mutex_unlock(&rt712->disable_irq_lock);
+	pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
+	return ret;
+}
+
+static const struct sdw_slave_ops rt712_sdca_slave_ops = {
+	.read_prop = rt712_sdca_read_prop,
+	.interrupt_callback = rt712_sdca_interrupt_callback,
+	.update_status = rt712_sdca_update_status,
+};
+
+static int rt712_sdca_sdw_probe(struct sdw_slave *slave,
+				const struct sdw_device_id *id)
+{
+	struct regmap *regmap, *mbq_regmap;
+
+	/* Regmap Initialization */
+	mbq_regmap = devm_regmap_init_sdw_mbq(slave, &rt712_sdca_mbq_regmap);
+	if (IS_ERR(mbq_regmap))
+		return PTR_ERR(mbq_regmap);
+
+	regmap = devm_regmap_init_sdw(slave, &rt712_sdca_regmap);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	return rt712_sdca_init(&slave->dev, regmap, mbq_regmap, slave);
+}
+
+static void rt712_sdca_sdw_remove(struct sdw_slave *slave)
+{
+	struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);
+
+	if (rt712->hw_init) {
+		cancel_delayed_work_sync(&rt712->jack_detect_work);
+		cancel_delayed_work_sync(&rt712->jack_btn_check_work);
+	}
+
+	pm_runtime_disable(&slave->dev);
+
+	mutex_destroy(&rt712->calibrate_mutex);
+	mutex_destroy(&rt712->disable_irq_lock);
+}
+
+static const struct sdw_device_id rt712_sdca_id[] = {
+	SDW_SLAVE_ENTRY_EXT(0x025d, 0x712, 0x3, 0x1, 0),
+	SDW_SLAVE_ENTRY_EXT(0x025d, 0x713, 0x3, 0x1, 0),
+	SDW_SLAVE_ENTRY_EXT(0x025d, 0x716, 0x3, 0x1, 0),
+	SDW_SLAVE_ENTRY_EXT(0x025d, 0x717, 0x3, 0x1, 0),
+	{},
+};
+MODULE_DEVICE_TABLE(sdw, rt712_sdca_id);
+
+static int rt712_sdca_dev_suspend(struct device *dev)
+{
+	struct rt712_sdca_priv *rt712 = dev_get_drvdata(dev);
+
+	if (!rt712->hw_init)
+		return 0;
+
+	cancel_delayed_work_sync(&rt712->jack_detect_work);
+	cancel_delayed_work_sync(&rt712->jack_btn_check_work);
+
+	regcache_cache_only(rt712->regmap, true);
+	regcache_cache_only(rt712->mbq_regmap, true);
+
+	return 0;
+}
+
+static int rt712_sdca_dev_system_suspend(struct device *dev)
+{
+	struct rt712_sdca_priv *rt712_sdca = dev_get_drvdata(dev);
+	struct sdw_slave *slave = dev_to_sdw_dev(dev);
+	int ret1, ret2;
+
+	if (!rt712_sdca->hw_init)
+		return 0;
+
+	/*
+	 * prevent new interrupts from being handled after the
+	 * deferred work completes and before the parent disables
+	 * interrupts on the link
+	 */
+	scoped_guard(mutex, &rt712_sdca->disable_irq_lock) {
+		rt712_sdca->disable_irq = true;
+		ret1 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK1,
+					SDW_SCP_SDCA_INTMASK_SDCA_0, 0);
+		ret2 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK2,
+					SDW_SCP_SDCA_INTMASK_SDCA_8, 0);
+	}
+
+	if (ret1 < 0 || ret2 < 0) {
+		/* log but don't prevent suspend from happening */
+		dev_dbg(&slave->dev, "%s: could not disable SDCA interrupts\n:", __func__);
+	}
+
+	return rt712_sdca_dev_suspend(dev);
+}
+
+#define RT712_PROBE_TIMEOUT 5000
+
+static int rt712_sdca_dev_resume(struct device *dev)
+{
+	struct sdw_slave *slave = dev_to_sdw_dev(dev);
+	struct rt712_sdca_priv *rt712 = dev_get_drvdata(dev);
+	int ret;
+
+	if (!rt712->first_hw_init)
+		return 0;
+
+	if (!slave->unattach_request) {
+		scoped_guard(mutex, &rt712->disable_irq_lock) {
+			if (rt712->disable_irq) {
+				sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK1,
+						SDW_SCP_SDCA_INTMASK_SDCA_0);
+				sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK2,
+						SDW_SCP_SDCA_INTMASK_SDCA_8);
+				rt712->disable_irq = false;
+			}
+		}
+	}
+
+	ret = sdw_slave_wait_for_init(slave, RT712_PROBE_TIMEOUT);
+	if (ret) {
+		sdw_show_ping_status(slave->bus, true);
+		return ret;
+	}
+
+	regcache_cache_only(rt712->regmap, false);
+	ret = regcache_sync(rt712->regmap);
+	if (ret) {
+		regcache_cache_only(rt712->regmap, true);
+		return ret;
+	}
+
+	regcache_cache_only(rt712->mbq_regmap, false);
+	ret = regcache_sync(rt712->mbq_regmap);
+	if (ret) {
+		regcache_cache_only(rt712->mbq_regmap, true);
+		regcache_cache_only(rt712->regmap, true);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct dev_pm_ops rt712_sdca_pm = {
+	SYSTEM_SLEEP_PM_OPS(rt712_sdca_dev_system_suspend, rt712_sdca_dev_resume)
+	RUNTIME_PM_OPS(rt712_sdca_dev_suspend, rt712_sdca_dev_resume, NULL)
+};
+
+static struct sdw_driver rt712_sdca_sdw_driver = {
+	.driver = {
+		.name = "rt712-sdca",
+		.pm = pm_ptr(&rt712_sdca_pm),
+	},
+	.probe = rt712_sdca_sdw_probe,
+	.remove = rt712_sdca_sdw_remove,
+	.ops = &rt712_sdca_slave_ops,
+	.id_table = rt712_sdca_id,
+};
+module_sdw_driver(rt712_sdca_sdw_driver);
+
+MODULE_DESCRIPTION("ASoC RT712 SDCA SDW driver");
+MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS("SND_SOC_SDCA");