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, 232 insertions, 0 deletions

diff --git a/sound/soc/codecs/rt1016.h b/sound/soc/codecs/rt1016.h
new file mode 100644
index 000000000..041d6a5a6
--- /dev/null
+++ b/sound/soc/codecs/rt1016.h
@@ -0,0 +1,232 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * rt1016.h  --  RT1016 ALSA SoC audio amplifier driver
+ *
+ * Copyright 2020 Realtek Semiconductor Corp.
+ * Author: Oder Chiou <oder_chiou@realtek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __RT1016_H__
+#define __RT1016_H__
+
+#define RT1016_DEVICE_ID_VAL	0x6595
+
+#define RT1016_RESET		0x00
+#define RT1016_PADS_CTRL_1	0x01
+#define RT1016_PADS_CTRL_2	0x02
+#define RT1016_I2C_CTRL		0x03
+#define RT1016_VOL_CTRL_1	0x04
+#define RT1016_VOL_CTRL_2	0x05
+#define RT1016_VOL_CTRL_3	0x06
+#define RT1016_ANA_CTRL_1	0x07
+#define RT1016_MUX_SEL		0x08
+#define RT1016_RX_I2S_CTRL	0x09
+#define RT1016_ANA_FLAG		0x0a
+#define RT1016_VERSION2_ID	0x0c
+#define RT1016_VERSION1_ID	0x0d
+#define RT1016_VENDER_ID	0x0e
+#define RT1016_DEVICE_ID	0x0f
+#define RT1016_ANA_CTRL_2	0x11
+#define RT1016_TEST_SIGNAL	0x1c
+#define RT1016_TEST_CTRL_1	0x1d
+#define RT1016_TEST_CTRL_2	0x1e
+#define RT1016_TEST_CTRL_3	0x1f
+#define RT1016_CLOCK_1		0x20
+#define RT1016_CLOCK_2		0x21
+#define RT1016_CLOCK_3		0x22
+#define RT1016_CLOCK_4		0x23
+#define RT1016_CLOCK_5		0x24
+#define RT1016_CLOCK_6		0x25
+#define RT1016_CLOCK_7		0x26
+#define RT1016_I2S_CTRL		0x40
+#define RT1016_DAC_CTRL_1	0x60
+#define RT1016_SC_CTRL_1	0x80
+#define RT1016_SC_CTRL_2	0x81
+#define RT1016_SC_CTRL_3	0x82
+#define RT1016_SC_CTRL_4	0x83
+#define RT1016_SIL_DET		0xa0
+#define RT1016_SYS_CLK		0xc0
+#define RT1016_BIAS_CUR		0xc1
+#define RT1016_DAC_CTRL_2	0xc2
+#define RT1016_LDO_CTRL		0xc3
+#define RT1016_CLASSD_1		0xc4
+#define RT1016_PLL1		0xc5
+#define RT1016_PLL2		0xc6
+#define RT1016_PLL3		0xc7
+#define RT1016_CLASSD_2		0xc8
+#define RT1016_CLASSD_OUT	0xc9
+#define RT1016_CLASSD_3		0xca
+#define RT1016_CLASSD_4		0xcb
+#define RT1016_CLASSD_5		0xcc
+#define RT1016_PWR_CTRL		0xcf
+
+/* global definition */
+#define RT1016_L_VOL_MASK			(0xff << 8)
+#define RT1016_L_VOL_SFT			8
+#define RT1016_R_VOL_MASK			(0xff)
+#define RT1016_R_VOL_SFT			0
+
+/* 0x04 */
+#define RT1016_DA_MUTE_L_SFT			7
+#define RT1016_DA_MUTE_R_SFT			6
+
+/* 0x20 */
+#define RT1016_CLK_SYS_SEL_MASK			(0x1 << 15)
+#define RT1016_CLK_SYS_SEL_SFT			15
+#define RT1016_CLK_SYS_SEL_MCLK			(0x0 << 15)
+#define RT1016_CLK_SYS_SEL_PLL			(0x1 << 15)
+#define RT1016_PLL_SEL_MASK			(0x1 << 13)
+#define RT1016_PLL_SEL_SFT			13
+#define RT1016_PLL_SEL_MCLK			(0x0 << 13)
+#define RT1016_PLL_SEL_BCLK			(0x1 << 13)
+
+/* 0x21 */
+#define RT1016_FS_PD_MASK			(0x7 << 13)
+#define RT1016_FS_PD_SFT			13
+#define RT1016_OSR_PD_MASK			(0x3 << 10)
+#define RT1016_OSR_PD_SFT			10
+
+/* 0x22 */
+#define RT1016_PWR_DAC_FILTER			(0x1 << 11)
+#define RT1016_PWR_DAC_FILTER_BIT		11
+#define RT1016_PWR_DACMOD			(0x1 << 10)
+#define RT1016_PWR_DACMOD_BIT			10
+#define RT1016_PWR_CLK_FIFO			(0x1 << 9)
+#define RT1016_PWR_CLK_FIFO_BIT			9
+#define RT1016_PWR_CLK_PUREDC			(0x1 << 8)
+#define RT1016_PWR_CLK_PUREDC_BIT		8
+#define RT1016_PWR_SIL_DET			(0x1 << 7)
+#define RT1016_PWR_SIL_DET_BIT			7
+#define RT1016_PWR_RC_25M			(0x1 << 6)
+#define RT1016_PWR_RC_25M_BIT			6
+#define RT1016_PWR_PLL1				(0x1 << 5)
+#define RT1016_PWR_PLL1_BIT			5
+#define RT1016_PWR_ANA_CTRL			(0x1 << 4)
+#define RT1016_PWR_ANA_CTRL_BIT			4
+#define RT1016_PWR_CLK_SYS			(0x1 << 3)
+#define RT1016_PWR_CLK_SYS_BIT			3
+
+/* 0x23 */
+#define RT1016_PWR_LRCK_DET			(0x1 << 15)
+#define RT1016_PWR_LRCK_DET_BIT			15
+#define RT1016_PWR_BCLK_DET			(0x1 << 11)
+#define RT1016_PWR_BCLK_DET_BIT			11
+
+/* 0x40 */
+#define RT1016_I2S_BCLK_MS_MASK			(0x1 << 15)
+#define RT1016_I2S_BCLK_MS_SFT			15
+#define RT1016_I2S_BCLK_MS_32			(0x0 << 15)
+#define RT1016_I2S_BCLK_MS_64			(0x1 << 15)
+#define RT1016_I2S_BCLK_POL_MASK		(0x1 << 13)
+#define RT1016_I2S_BCLK_POL_SFT			13
+#define RT1016_I2S_BCLK_POL_NOR			(0x0 << 13)
+#define RT1016_I2S_BCLK_POL_INV			(0x1 << 13)
+#define RT1016_I2S_DATA_SWAP_MASK		(0x1 << 10)
+#define RT1016_I2S_DATA_SWAP_SFT		10
+#define RT1016_I2S_DL_MASK			(0x7 << 4)
+#define RT1016_I2S_DL_SFT			4
+#define RT1016_I2S_DL_16			(0x1 << 4)
+#define RT1016_I2S_DL_20			(0x2 << 4)
+#define RT1016_I2S_DL_24			(0x3 << 4)
+#define RT1016_I2S_DL_32			(0x4 << 4)
+#define RT1016_I2S_MS_MASK			(0x1 << 3)
+#define RT1016_I2S_MS_SFT			3
+#define RT1016_I2S_MS_M				(0x0 << 3)
+#define RT1016_I2S_MS_S				(0x1 << 3)
+#define RT1016_I2S_DF_MASK			(0x7 << 0)
+#define RT1016_I2S_DF_SFT			0
+#define RT1016_I2S_DF_I2S			(0x0)
+#define RT1016_I2S_DF_LEFT			(0x1)
+#define RT1016_I2S_DF_PCM_A			(0x2)
+#define RT1016_I2S_DF_PCM_B			(0x3)
+
+/* 0xa0 */
+#define RT1016_SIL_DET_EN			(0x1 << 15)
+#define RT1016_SIL_DET_EN_BIT			15
+
+/* 0xc2 */
+#define RT1016_CKGEN_DAC			(0x1 << 13)
+#define RT1016_CKGEN_DAC_BIT			13
+
+/* 0xc4 */
+#define RT1016_VCM_SLOW				(0x1 << 6)
+#define RT1016_VCM_SLOW_BIT			6
+
+/* 0xc5 */
+#define RT1016_PLL_M_MAX			0xf
+#define RT1016_PLL_M_MASK			(RT1016_PLL_M_MAX << 12)
+#define RT1016_PLL_M_SFT			12
+#define RT1016_PLL_M_BP				(0x1 << 11)
+#define RT1016_PLL_M_BP_SFT			11
+#define RT1016_PLL_N_MAX			0x1ff
+#define RT1016_PLL_N_MASK			(RT1016_PLL_N_MAX << 0)
+#define RT1016_PLL_N_SFT			0
+
+/* 0xc6 */
+#define RT1016_PLL2_EN				(0x1 << 15)
+#define RT1016_PLL2_EN_BIT			15
+#define RT1016_PLL_K_BP				(0x1 << 5)
+#define RT1016_PLL_K_BP_SFT			5
+#define RT1016_PLL_K_MAX			0x1f
+#define RT1016_PLL_K_MASK			(RT1016_PLL_K_MAX)
+#define RT1016_PLL_K_SFT			0
+
+/* 0xcf */
+#define RT1016_PWR_BG_1_2			(0x1 << 12)
+#define RT1016_PWR_BG_1_2_BIT			12
+#define RT1016_PWR_MBIAS_BG			(0x1 << 11)
+#define RT1016_PWR_MBIAS_BG_BIT			11
+#define RT1016_PWR_PLL				(0x1 << 9)
+#define RT1016_PWR_PLL_BIT			9
+#define RT1016_PWR_BASIC			(0x1 << 8)
+#define RT1016_PWR_BASIC_BIT			8
+#define RT1016_PWR_CLSD				(0x1 << 7)
+#define RT1016_PWR_CLSD_BIT			7
+#define RT1016_PWR_25M				(0x1 << 6)
+#define RT1016_PWR_25M_BIT			6
+#define RT1016_PWR_DACL				(0x1 << 4)
+#define RT1016_PWR_DACL_BIT			4
+#define RT1016_PWR_DACR				(0x1 << 3)
+#define RT1016_PWR_DACR_BIT			3
+#define RT1016_PWR_LDO2				(0x1 << 2)
+#define RT1016_PWR_LDO2_BIT			2
+#define RT1016_PWR_VREF				(0x1 << 1)
+#define RT1016_PWR_VREF_BIT			1
+#define RT1016_PWR_MBIAS			(0x1 << 0)
+#define RT1016_PWR_MBIAS_BIT			0
+
+/* System Clock Source */
+enum {
+	RT1016_SCLK_S_MCLK,
+	RT1016_SCLK_S_PLL,
+};
+
+/* PLL1 Source */
+enum {
+	RT1016_PLL_S_MCLK,
+	RT1016_PLL_S_BCLK,
+};
+
+enum {
+	RT1016_AIF1,
+	RT1016_AIFS,
+};
+
+struct rt1016_priv {
+	struct snd_soc_component *component;
+	struct regmap *regmap;
+	int sysclk;
+	int sysclk_src;
+	int lrck;
+	int bclk;
+	int master;
+	int pll_src;
+	int pll_in;
+	int pll_out;
+};
+
+#endif /* __RT1016_H__ */