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, 693 insertions, 0 deletions

diff --git a/sound/soc/codecs/rt1016.c b/sound/soc/codecs/rt1016.c
new file mode 100644
index 000000000..11c8c4557
--- /dev/null
+++ b/sound/soc/codecs/rt1016.c
@@ -0,0 +1,693 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// rt1016.c  --  RT1016 ALSA SoC audio amplifier driver
+//
+// Copyright 2020 Realtek Semiconductor Corp.
+// Author: Oder Chiou <oder_chiou@realtek.com>
+//
+
+#include <linux/fs.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/regmap.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/firmware.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+#include "rl6231.h"
+#include "rt1016.h"
+
+static const struct reg_sequence rt1016_patch[] = {
+	{RT1016_VOL_CTRL_3,	0x8900},
+	{RT1016_ANA_CTRL_1,	0xa002},
+	{RT1016_ANA_CTRL_2,	0x0002},
+	{RT1016_CLOCK_4,	0x6700},
+	{RT1016_CLASSD_3,	0xdc55},
+	{RT1016_CLASSD_4,	0x376a},
+	{RT1016_CLASSD_5,	0x009f},
+};
+
+static const struct reg_default rt1016_reg[] = {
+	{0x00, 0x0000},
+	{0x01, 0x5400},
+	{0x02, 0x5506},
+	{0x03, 0xf800},
+	{0x04, 0x0000},
+	{0x05, 0xbfbf},
+	{0x06, 0x8900},
+	{0x07, 0xa002},
+	{0x08, 0x0000},
+	{0x09, 0x0000},
+	{0x0a, 0x0000},
+	{0x0c, 0x0000},
+	{0x0d, 0x0000},
+	{0x0e, 0x10ec},
+	{0x0f, 0x6595},
+	{0x11, 0x0002},
+	{0x1c, 0x0000},
+	{0x1d, 0x0000},
+	{0x1e, 0x0000},
+	{0x1f, 0xf000},
+	{0x20, 0x0000},
+	{0x21, 0x6000},
+	{0x22, 0x0000},
+	{0x23, 0x6700},
+	{0x24, 0x0000},
+	{0x25, 0x0000},
+	{0x26, 0x0000},
+	{0x40, 0x0018},
+	{0x60, 0x00a5},
+	{0x80, 0x0010},
+	{0x81, 0x0009},
+	{0x82, 0x0000},
+	{0x83, 0x0000},
+	{0xa0, 0x0700},
+	{0xc0, 0x0080},
+	{0xc1, 0x02a0},
+	{0xc2, 0x1400},
+	{0xc3, 0x0a4a},
+	{0xc4, 0x552a},
+	{0xc5, 0x087e},
+	{0xc6, 0x0020},
+	{0xc7, 0xa833},
+	{0xc8, 0x0433},
+	{0xc9, 0x8040},
+	{0xca, 0xdc55},
+	{0xcb, 0x376a},
+	{0xcc, 0x009f},
+	{0xcf, 0x0020},
+};
+
+static bool rt1016_volatile_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case RT1016_ANA_FLAG:
+	case RT1016_VERSION2_ID:
+	case RT1016_VERSION1_ID:
+	case RT1016_VENDER_ID:
+	case RT1016_DEVICE_ID:
+	case RT1016_TEST_SIGNAL:
+	case RT1016_SC_CTRL_1:
+		return true;
+
+	default:
+		return false;
+	}
+}
+
+static bool rt1016_readable_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case RT1016_RESET:
+	case RT1016_PADS_CTRL_1:
+	case RT1016_PADS_CTRL_2:
+	case RT1016_I2C_CTRL:
+	case RT1016_VOL_CTRL_1:
+	case RT1016_VOL_CTRL_2:
+	case RT1016_VOL_CTRL_3:
+	case RT1016_ANA_CTRL_1:
+	case RT1016_MUX_SEL:
+	case RT1016_RX_I2S_CTRL:
+	case RT1016_ANA_FLAG:
+	case RT1016_VERSION2_ID:
+	case RT1016_VERSION1_ID:
+	case RT1016_VENDER_ID:
+	case RT1016_DEVICE_ID:
+	case RT1016_ANA_CTRL_2:
+	case RT1016_TEST_SIGNAL:
+	case RT1016_TEST_CTRL_1:
+	case RT1016_TEST_CTRL_2:
+	case RT1016_TEST_CTRL_3:
+	case RT1016_CLOCK_1:
+	case RT1016_CLOCK_2:
+	case RT1016_CLOCK_3:
+	case RT1016_CLOCK_4:
+	case RT1016_CLOCK_5:
+	case RT1016_CLOCK_6:
+	case RT1016_CLOCK_7:
+	case RT1016_I2S_CTRL:
+	case RT1016_DAC_CTRL_1:
+	case RT1016_SC_CTRL_1:
+	case RT1016_SC_CTRL_2:
+	case RT1016_SC_CTRL_3:
+	case RT1016_SC_CTRL_4:
+	case RT1016_SIL_DET:
+	case RT1016_SYS_CLK:
+	case RT1016_BIAS_CUR:
+	case RT1016_DAC_CTRL_2:
+	case RT1016_LDO_CTRL:
+	case RT1016_CLASSD_1:
+	case RT1016_PLL1:
+	case RT1016_PLL2:
+	case RT1016_PLL3:
+	case RT1016_CLASSD_2:
+	case RT1016_CLASSD_OUT:
+	case RT1016_CLASSD_3:
+	case RT1016_CLASSD_4:
+	case RT1016_CLASSD_5:
+	case RT1016_PWR_CTRL:
+		return true;
+
+	default:
+		return false;
+	}
+}
+
+static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -9550, 50, 0);
+
+static const struct snd_kcontrol_new rt1016_snd_controls[] = {
+	SOC_DOUBLE_TLV("DAC Playback Volume", RT1016_VOL_CTRL_2,
+		RT1016_L_VOL_SFT, RT1016_R_VOL_SFT, 191, 0, dac_vol_tlv),
+	SOC_DOUBLE("DAC Playback Switch", RT1016_VOL_CTRL_1,
+		RT1016_DA_MUTE_L_SFT, RT1016_DA_MUTE_R_SFT, 1, 1),
+};
+
+static int rt1016_is_sys_clk_from_pll(struct snd_soc_dapm_widget *source,
+			 struct snd_soc_dapm_widget *sink)
+{
+	struct snd_soc_component *component =
+		snd_soc_dapm_to_component(source->dapm);
+	struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
+
+	if (rt1016->sysclk_src == RT1016_SCLK_S_PLL)
+		return 1;
+	else
+		return 0;
+}
+
+/* Interface data select */
+static const char * const rt1016_data_select[] = {
+	"L/R", "R/L", "L/L", "R/R"
+};
+
+static SOC_ENUM_SINGLE_DECL(rt1016_if_data_swap_enum,
+	RT1016_I2S_CTRL, RT1016_I2S_DATA_SWAP_SFT, rt1016_data_select);
+
+static const struct snd_kcontrol_new rt1016_if_data_swap_mux =
+	SOC_DAPM_ENUM("Data Swap Mux", rt1016_if_data_swap_enum);
+
+static const struct snd_soc_dapm_widget rt1016_dapm_widgets[] = {
+	SND_SOC_DAPM_MUX("Data Swap Mux", SND_SOC_NOPM, 0, 0,
+			&rt1016_if_data_swap_mux),
+
+	SND_SOC_DAPM_SUPPLY("DAC Filter", RT1016_CLOCK_3,
+		RT1016_PWR_DAC_FILTER_BIT, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("DAMOD", RT1016_CLOCK_3, RT1016_PWR_DACMOD_BIT, 0,
+		NULL, 0),
+	SND_SOC_DAPM_SUPPLY("FIFO", RT1016_CLOCK_3, RT1016_PWR_CLK_FIFO_BIT, 0,
+		NULL, 0),
+	SND_SOC_DAPM_SUPPLY("Pure DC", RT1016_CLOCK_3,
+		RT1016_PWR_CLK_PUREDC_BIT, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("CLK Silence Det", RT1016_CLOCK_3,
+		RT1016_PWR_SIL_DET_BIT, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("RC 25M", RT1016_CLOCK_3, RT1016_PWR_RC_25M_BIT, 0,
+		NULL, 0),
+	SND_SOC_DAPM_SUPPLY("PLL1", RT1016_CLOCK_3, RT1016_PWR_PLL1_BIT, 0,
+		NULL, 0),
+	SND_SOC_DAPM_SUPPLY("ANA CTRL", RT1016_CLOCK_3, RT1016_PWR_ANA_CTRL_BIT,
+		0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("CLK SYS", RT1016_CLOCK_3, RT1016_PWR_CLK_SYS_BIT,
+		0, NULL, 0),
+
+	SND_SOC_DAPM_SUPPLY("LRCK Det", RT1016_CLOCK_4, RT1016_PWR_LRCK_DET_BIT,
+		0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("BCLK Det", RT1016_CLOCK_4, RT1016_PWR_BCLK_DET_BIT,
+		0, NULL, 0),
+
+	SND_SOC_DAPM_SUPPLY("CKGEN DAC", RT1016_DAC_CTRL_2,
+		RT1016_CKGEN_DAC_BIT, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("VCM SLOW", RT1016_CLASSD_1, RT1016_VCM_SLOW_BIT, 0,
+		NULL, 0),
+	SND_SOC_DAPM_SUPPLY("Silence Det", RT1016_SIL_DET,
+		RT1016_SIL_DET_EN_BIT, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("PLL2", RT1016_PLL2, RT1016_PLL2_EN_BIT, 0, NULL,
+		0),
+
+	SND_SOC_DAPM_SUPPLY_S("BG1 BG2", 1, RT1016_PWR_CTRL,
+		RT1016_PWR_BG_1_2_BIT, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY_S("MBIAS BG", 1, RT1016_PWR_CTRL,
+		RT1016_PWR_MBIAS_BG_BIT, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY_S("PLL", 1, RT1016_PWR_CTRL, RT1016_PWR_PLL_BIT, 0,
+		NULL, 0),
+	SND_SOC_DAPM_SUPPLY_S("BASIC", 1, RT1016_PWR_CTRL, RT1016_PWR_BASIC_BIT,
+		0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY_S("CLASS D", 1, RT1016_PWR_CTRL,
+		RT1016_PWR_CLSD_BIT, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY_S("25M", 1, RT1016_PWR_CTRL, RT1016_PWR_25M_BIT, 0,
+		NULL, 0),
+	SND_SOC_DAPM_SUPPLY_S("DACL", 1, RT1016_PWR_CTRL, RT1016_PWR_DACL_BIT,
+		0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY_S("DACR", 1, RT1016_PWR_CTRL, RT1016_PWR_DACR_BIT,
+		0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY_S("LDO2", 1, RT1016_PWR_CTRL, RT1016_PWR_LDO2_BIT,
+		0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY_S("VREF", 1, RT1016_PWR_CTRL, RT1016_PWR_VREF_BIT,
+		0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY_S("MBIAS", 1, RT1016_PWR_CTRL, RT1016_PWR_MBIAS_BIT,
+		0, NULL, 0),
+
+	SND_SOC_DAPM_AIF_IN("AIFRX", "AIF Playback", 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0),
+
+	SND_SOC_DAPM_OUTPUT("SPO"),
+};
+
+static const struct snd_soc_dapm_route rt1016_dapm_routes[] = {
+	{ "Data Swap Mux", "L/R", "AIFRX" },
+	{ "Data Swap Mux", "R/L", "AIFRX" },
+	{ "Data Swap Mux", "L/L", "AIFRX" },
+	{ "Data Swap Mux", "R/R", "AIFRX" },
+
+	{ "DAC", NULL, "DAC Filter" },
+	{ "DAC", NULL, "DAMOD" },
+	{ "DAC", NULL, "FIFO" },
+	{ "DAC", NULL, "Pure DC" },
+	{ "DAC", NULL, "Silence Det" },
+	{ "DAC", NULL, "ANA CTRL" },
+	{ "DAC", NULL, "CLK SYS" },
+	{ "DAC", NULL, "LRCK Det" },
+	{ "DAC", NULL, "BCLK Det" },
+	{ "DAC", NULL, "CKGEN DAC" },
+	{ "DAC", NULL, "VCM SLOW" },
+
+	{ "PLL", NULL, "PLL1" },
+	{ "PLL", NULL, "PLL2" },
+	{ "25M", NULL, "RC 25M" },
+	{ "Silence Det", NULL, "CLK Silence Det" },
+
+	{ "DAC", NULL, "Data Swap Mux" },
+	{ "DAC", NULL, "BG1 BG2" },
+	{ "DAC", NULL, "MBIAS BG" },
+	{ "DAC", NULL, "PLL", rt1016_is_sys_clk_from_pll},
+	{ "DAC", NULL, "BASIC" },
+	{ "DAC", NULL, "CLASS D" },
+	{ "DAC", NULL, "25M" },
+	{ "DAC", NULL, "DACL" },
+	{ "DAC", NULL, "DACR" },
+	{ "DAC", NULL, "LDO2" },
+	{ "DAC", NULL, "VREF" },
+	{ "DAC", NULL, "MBIAS" },
+
+	{ "SPO", NULL, "DAC" },
+};
+
+static int rt1016_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
+	int pre_div, bclk_ms, frame_size;
+	unsigned int val_len = 0;
+
+	rt1016->lrck = params_rate(params);
+	pre_div = rl6231_get_clk_info(rt1016->sysclk, rt1016->lrck);
+	if (pre_div < 0) {
+		dev_err(component->dev, "Unsupported clock rate\n");
+		return -EINVAL;
+	}
+
+	frame_size = snd_soc_params_to_frame_size(params);
+	if (frame_size < 0) {
+		dev_err(component->dev, "Unsupported frame size: %d\n",
+			frame_size);
+		return -EINVAL;
+	}
+
+	bclk_ms = frame_size > 32;
+	rt1016->bclk = rt1016->lrck * (32 << bclk_ms);
+
+	if (bclk_ms && rt1016->master)
+		snd_soc_component_update_bits(component, RT1016_I2S_CTRL,
+			RT1016_I2S_BCLK_MS_MASK, RT1016_I2S_BCLK_MS_64);
+
+	dev_dbg(component->dev, "lrck is %dHz and pre_div is %d for iis %d\n",
+				rt1016->lrck, pre_div, dai->id);
+
+	switch (params_width(params)) {
+	case 16:
+		val_len = RT1016_I2S_DL_16;
+		break;
+	case 20:
+		val_len = RT1016_I2S_DL_20;
+		break;
+	case 24:
+		val_len = RT1016_I2S_DL_24;
+		break;
+	case 32:
+		val_len = RT1016_I2S_DL_32;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	snd_soc_component_update_bits(component, RT1016_I2S_CTRL,
+		RT1016_I2S_DL_MASK, val_len);
+	snd_soc_component_update_bits(component, RT1016_CLOCK_2,
+		RT1016_FS_PD_MASK | RT1016_OSR_PD_MASK,
+		((pre_div + 3) << RT1016_FS_PD_SFT) |
+		(pre_div << RT1016_OSR_PD_SFT));
+
+	return 0;
+}
+
+static int rt1016_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct snd_soc_component *component = dai->component;
+	struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
+	unsigned int reg_val = 0;
+
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBP_CFP:
+		reg_val |= RT1016_I2S_MS_M;
+		rt1016->master = 1;
+		break;
+	case SND_SOC_DAIFMT_CBC_CFC:
+		reg_val |= RT1016_I2S_MS_S;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		reg_val |= RT1016_I2S_BCLK_POL_INV;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		break;
+
+	case SND_SOC_DAIFMT_LEFT_J:
+		reg_val |= RT1016_I2S_DF_LEFT;
+		break;
+
+	case SND_SOC_DAIFMT_DSP_A:
+		reg_val |= RT1016_I2S_DF_PCM_A;
+		break;
+
+	case SND_SOC_DAIFMT_DSP_B:
+		reg_val |= RT1016_I2S_DF_PCM_B;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	snd_soc_component_update_bits(component, RT1016_I2S_CTRL,
+			RT1016_I2S_MS_MASK | RT1016_I2S_BCLK_POL_MASK |
+			RT1016_I2S_DF_MASK, reg_val);
+
+	return 0;
+}
+
+static int rt1016_set_component_sysclk(struct snd_soc_component *component,
+		int clk_id, int source, unsigned int freq, int dir)
+{
+	struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
+	unsigned int reg_val = 0;
+
+	if (freq == rt1016->sysclk && clk_id == rt1016->sysclk_src)
+		return 0;
+
+	switch (clk_id) {
+	case RT1016_SCLK_S_MCLK:
+		reg_val |= RT1016_CLK_SYS_SEL_MCLK;
+		break;
+
+	case RT1016_SCLK_S_PLL:
+		reg_val |= RT1016_CLK_SYS_SEL_PLL;
+		break;
+
+	default:
+		dev_err(component->dev, "Invalid clock id (%d)\n", clk_id);
+		return -EINVAL;
+	}
+
+	rt1016->sysclk = freq;
+	rt1016->sysclk_src = clk_id;
+
+	dev_dbg(component->dev, "Sysclk is %dHz and clock id is %d\n",
+		freq, clk_id);
+
+	snd_soc_component_update_bits(component, RT1016_CLOCK_1,
+			RT1016_CLK_SYS_SEL_MASK, reg_val);
+
+	return 0;
+}
+
+static int rt1016_set_component_pll(struct snd_soc_component *component,
+		int pll_id, int source, unsigned int freq_in,
+		unsigned int freq_out)
+{
+	struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
+	struct rl6231_pll_code pll_code;
+	int ret;
+
+	if (!freq_in || !freq_out) {
+		dev_dbg(component->dev, "PLL disabled\n");
+
+		rt1016->pll_in = 0;
+		rt1016->pll_out = 0;
+
+		return 0;
+	}
+
+	if (source == rt1016->pll_src && freq_in == rt1016->pll_in &&
+		freq_out == rt1016->pll_out)
+		return 0;
+
+	switch (source) {
+	case RT1016_PLL_S_MCLK:
+		snd_soc_component_update_bits(component, RT1016_CLOCK_1,
+			RT1016_PLL_SEL_MASK, RT1016_PLL_SEL_MCLK);
+		break;
+
+	case RT1016_PLL_S_BCLK:
+		snd_soc_component_update_bits(component, RT1016_CLOCK_1,
+			RT1016_PLL_SEL_MASK, RT1016_PLL_SEL_BCLK);
+		break;
+
+	default:
+		dev_err(component->dev, "Unknown PLL Source %d\n", source);
+		return -EINVAL;
+	}
+
+	ret = rl6231_pll_calc(freq_in, freq_out * 4, &pll_code);
+	if (ret < 0) {
+		dev_err(component->dev, "Unsupported input clock %d\n", freq_in);
+		return ret;
+	}
+
+	dev_dbg(component->dev, "mbypass=%d m=%d n=%d kbypass=%d k=%d\n",
+		pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code),
+		pll_code.n_code, pll_code.k_bp,
+		(pll_code.k_bp ? 0 : pll_code.k_code));
+
+	snd_soc_component_write(component, RT1016_PLL1,
+		((pll_code.m_bp ? 0 : pll_code.m_code) << RT1016_PLL_M_SFT) |
+		(pll_code.m_bp << RT1016_PLL_M_BP_SFT) |
+		pll_code.n_code);
+	snd_soc_component_write(component, RT1016_PLL2,
+		(pll_code.k_bp << RT1016_PLL_K_BP_SFT) |
+		(pll_code.k_bp ? 0 : pll_code.k_code));
+
+	rt1016->pll_in = freq_in;
+	rt1016->pll_out = freq_out;
+	rt1016->pll_src = source;
+
+	return 0;
+}
+
+static int rt1016_probe(struct snd_soc_component *component)
+{
+	struct rt1016_priv *rt1016 =
+		snd_soc_component_get_drvdata(component);
+
+	rt1016->component = component;
+
+	return 0;
+}
+
+static void rt1016_remove(struct snd_soc_component *component)
+{
+	struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
+
+	regmap_write(rt1016->regmap, RT1016_RESET, 0);
+}
+
+#define RT1016_STEREO_RATES SNDRV_PCM_RATE_8000_48000
+#define RT1016_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
+			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8)
+
+static const struct snd_soc_dai_ops rt1016_aif_dai_ops = {
+	.hw_params = rt1016_hw_params,
+	.set_fmt = rt1016_set_dai_fmt,
+};
+
+static struct snd_soc_dai_driver rt1016_dai[] = {
+	{
+		.name = "rt1016-aif",
+		.id = 0,
+		.playback = {
+			.stream_name = "AIF Playback",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = RT1016_STEREO_RATES,
+			.formats = RT1016_FORMATS,
+		},
+		.ops = &rt1016_aif_dai_ops,
+	}
+};
+
+#ifdef CONFIG_PM
+static int rt1016_suspend(struct snd_soc_component *component)
+{
+	struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
+
+	regcache_cache_only(rt1016->regmap, true);
+	regcache_mark_dirty(rt1016->regmap);
+
+	return 0;
+}
+
+static int rt1016_resume(struct snd_soc_component *component)
+{
+	struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
+
+	regcache_cache_only(rt1016->regmap, false);
+	regcache_sync(rt1016->regmap);
+
+	return 0;
+}
+#else
+#define rt1016_suspend NULL
+#define rt1016_resume NULL
+#endif
+
+static const struct snd_soc_component_driver soc_component_dev_rt1016 = {
+	.probe = rt1016_probe,
+	.remove = rt1016_remove,
+	.suspend = rt1016_suspend,
+	.resume = rt1016_resume,
+	.controls = rt1016_snd_controls,
+	.num_controls = ARRAY_SIZE(rt1016_snd_controls),
+	.dapm_widgets = rt1016_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(rt1016_dapm_widgets),
+	.dapm_routes = rt1016_dapm_routes,
+	.num_dapm_routes = ARRAY_SIZE(rt1016_dapm_routes),
+	.set_sysclk = rt1016_set_component_sysclk,
+	.set_pll = rt1016_set_component_pll,
+	.use_pmdown_time	= 1,
+	.endianness		= 1,
+};
+
+static const struct regmap_config rt1016_regmap = {
+	.reg_bits = 8,
+	.val_bits = 16,
+	.max_register = RT1016_PWR_CTRL,
+	.volatile_reg = rt1016_volatile_register,
+	.readable_reg = rt1016_readable_register,
+	.cache_type = REGCACHE_RBTREE,
+	.reg_defaults = rt1016_reg,
+	.num_reg_defaults = ARRAY_SIZE(rt1016_reg),
+};
+
+static const struct i2c_device_id rt1016_i2c_id[] = {
+	{ .name = "rt1016" },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, rt1016_i2c_id);
+
+#if defined(CONFIG_OF)
+static const struct of_device_id rt1016_of_match[] = {
+	{ .compatible = "realtek,rt1016", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, rt1016_of_match);
+#endif
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id rt1016_acpi_match[] = {
+	{ "10EC1016" },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, rt1016_acpi_match);
+#endif
+
+static int rt1016_i2c_probe(struct i2c_client *i2c)
+{
+	struct rt1016_priv *rt1016;
+	int ret;
+	unsigned int val;
+
+	rt1016 = devm_kzalloc(&i2c->dev, sizeof(struct rt1016_priv),
+				GFP_KERNEL);
+	if (rt1016 == NULL)
+		return -ENOMEM;
+
+	i2c_set_clientdata(i2c, rt1016);
+
+	rt1016->regmap = devm_regmap_init_i2c(i2c, &rt1016_regmap);
+	if (IS_ERR(rt1016->regmap)) {
+		ret = PTR_ERR(rt1016->regmap);
+		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+			ret);
+		return ret;
+	}
+
+	regmap_read(rt1016->regmap, RT1016_DEVICE_ID, &val);
+	if (val != RT1016_DEVICE_ID_VAL) {
+		dev_err(&i2c->dev,
+			"Device with ID register %x is not rt1016\n", val);
+		return -ENODEV;
+	}
+
+	regmap_write(rt1016->regmap, RT1016_RESET, 0);
+
+	ret = regmap_register_patch(rt1016->regmap, rt1016_patch,
+				    ARRAY_SIZE(rt1016_patch));
+	if (ret != 0)
+		dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret);
+
+	return devm_snd_soc_register_component(&i2c->dev,
+		&soc_component_dev_rt1016,
+		rt1016_dai, ARRAY_SIZE(rt1016_dai));
+}
+
+static void rt1016_i2c_shutdown(struct i2c_client *client)
+{
+	struct rt1016_priv *rt1016 = i2c_get_clientdata(client);
+
+	regmap_write(rt1016->regmap, RT1016_RESET, 0);
+}
+
+static struct i2c_driver rt1016_i2c_driver = {
+	.driver = {
+		.name = "rt1016",
+		.of_match_table = of_match_ptr(rt1016_of_match),
+		.acpi_match_table = ACPI_PTR(rt1016_acpi_match),
+	},
+	.probe = rt1016_i2c_probe,
+	.shutdown = rt1016_i2c_shutdown,
+	.id_table = rt1016_i2c_id,
+};
+module_i2c_driver(rt1016_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC RT1016 driver");
+MODULE_AUTHOR("Oder Chiou <oder_chiou@realtek.com>");
+MODULE_LICENSE("GPL v2");