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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /sound/soc/codecs/tas2770.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to '')
-rw-r--r--sound/soc/codecs/tas2770.c730
1 files changed, 730 insertions, 0 deletions
diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c
new file mode 100644
index 000000000..8557759ac
--- /dev/null
+++ b/sound/soc/codecs/tas2770.c
@@ -0,0 +1,730 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ALSA SoC Texas Instruments TAS2770 20-W Digital Input Mono Class-D
+// Audio Amplifier with Speaker I/V Sense
+//
+// Copyright (C) 2016-2017 Texas Instruments Incorporated - https://www.ti.com/
+// Author: Tracy Yi <tracy-yi@ti.com>
+// Frank Shi <shifu0704@thundersoft.com>
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/regulator/consumer.h>
+#include <linux/firmware.h>
+#include <linux/regmap.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/slab.h>
+#include <sound/soc.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+#include "tas2770.h"
+
+#define TAS2770_MDELAY 0xFFFFFFFE
+
+static void tas2770_reset(struct tas2770_priv *tas2770)
+{
+ if (tas2770->reset_gpio) {
+ gpiod_set_value_cansleep(tas2770->reset_gpio, 0);
+ msleep(20);
+ gpiod_set_value_cansleep(tas2770->reset_gpio, 1);
+ usleep_range(1000, 2000);
+ }
+
+ snd_soc_component_write(tas2770->component, TAS2770_SW_RST,
+ TAS2770_RST);
+ usleep_range(1000, 2000);
+}
+
+static int tas2770_update_pwr_ctrl(struct tas2770_priv *tas2770)
+{
+ struct snd_soc_component *component = tas2770->component;
+ unsigned int val;
+ int ret;
+
+ if (tas2770->dac_powered)
+ val = tas2770->unmuted ?
+ TAS2770_PWR_CTRL_ACTIVE : TAS2770_PWR_CTRL_MUTE;
+ else
+ val = TAS2770_PWR_CTRL_SHUTDOWN;
+
+ ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL,
+ TAS2770_PWR_CTRL_MASK, val);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int tas2770_codec_suspend(struct snd_soc_component *component)
+{
+ struct tas2770_priv *tas2770 = snd_soc_component_get_drvdata(component);
+ int ret = 0;
+
+ regcache_cache_only(tas2770->regmap, true);
+ regcache_mark_dirty(tas2770->regmap);
+
+ if (tas2770->sdz_gpio) {
+ gpiod_set_value_cansleep(tas2770->sdz_gpio, 0);
+ } else {
+ ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL,
+ TAS2770_PWR_CTRL_MASK,
+ TAS2770_PWR_CTRL_SHUTDOWN);
+ if (ret < 0) {
+ regcache_cache_only(tas2770->regmap, false);
+ regcache_sync(tas2770->regmap);
+ return ret;
+ }
+
+ ret = 0;
+ }
+
+ return ret;
+}
+
+static int tas2770_codec_resume(struct snd_soc_component *component)
+{
+ struct tas2770_priv *tas2770 = snd_soc_component_get_drvdata(component);
+ int ret;
+
+ if (tas2770->sdz_gpio) {
+ gpiod_set_value_cansleep(tas2770->sdz_gpio, 1);
+ usleep_range(1000, 2000);
+ } else {
+ ret = tas2770_update_pwr_ctrl(tas2770);
+ if (ret < 0)
+ return ret;
+ }
+
+ regcache_cache_only(tas2770->regmap, false);
+
+ return regcache_sync(tas2770->regmap);
+}
+#else
+#define tas2770_codec_suspend NULL
+#define tas2770_codec_resume NULL
+#endif
+
+static const char * const tas2770_ASI1_src[] = {
+ "I2C offset", "Left", "Right", "LeftRightDiv2",
+};
+
+static SOC_ENUM_SINGLE_DECL(
+ tas2770_ASI1_src_enum, TAS2770_TDM_CFG_REG2,
+ 4, tas2770_ASI1_src);
+
+static const struct snd_kcontrol_new tas2770_asi1_mux =
+ SOC_DAPM_ENUM("ASI1 Source", tas2770_ASI1_src_enum);
+
+static int tas2770_dac_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *component =
+ snd_soc_dapm_to_component(w->dapm);
+ struct tas2770_priv *tas2770 =
+ snd_soc_component_get_drvdata(component);
+ int ret;
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ tas2770->dac_powered = 1;
+ ret = tas2770_update_pwr_ctrl(tas2770);
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ tas2770->dac_powered = 0;
+ ret = tas2770_update_pwr_ctrl(tas2770);
+ break;
+ default:
+ dev_err(tas2770->dev, "Not supported evevt\n");
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static const struct snd_kcontrol_new isense_switch =
+ SOC_DAPM_SINGLE("Switch", TAS2770_PWR_CTRL, 3, 1, 1);
+static const struct snd_kcontrol_new vsense_switch =
+ SOC_DAPM_SINGLE("Switch", TAS2770_PWR_CTRL, 2, 1, 1);
+
+static const struct snd_soc_dapm_widget tas2770_dapm_widgets[] = {
+ SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2770_asi1_mux),
+ SND_SOC_DAPM_SWITCH("ISENSE", TAS2770_PWR_CTRL, 3, 1, &isense_switch),
+ SND_SOC_DAPM_SWITCH("VSENSE", TAS2770_PWR_CTRL, 2, 1, &vsense_switch),
+ SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2770_dac_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_OUTPUT("OUT"),
+ SND_SOC_DAPM_SIGGEN("VMON"),
+ SND_SOC_DAPM_SIGGEN("IMON")
+};
+
+static const struct snd_soc_dapm_route tas2770_audio_map[] = {
+ {"ASI1 Sel", "I2C offset", "ASI1"},
+ {"ASI1 Sel", "Left", "ASI1"},
+ {"ASI1 Sel", "Right", "ASI1"},
+ {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
+ {"DAC", NULL, "ASI1 Sel"},
+ {"OUT", NULL, "DAC"},
+ {"ISENSE", "Switch", "IMON"},
+ {"VSENSE", "Switch", "VMON"},
+};
+
+static int tas2770_mute(struct snd_soc_dai *dai, int mute, int direction)
+{
+ struct snd_soc_component *component = dai->component;
+ struct tas2770_priv *tas2770 =
+ snd_soc_component_get_drvdata(component);
+
+ tas2770->unmuted = !mute;
+ return tas2770_update_pwr_ctrl(tas2770);
+}
+
+static int tas2770_set_bitwidth(struct tas2770_priv *tas2770, int bitwidth)
+{
+ int ret;
+ struct snd_soc_component *component = tas2770->component;
+
+ switch (bitwidth) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2,
+ TAS2770_TDM_CFG_REG2_RXW_MASK,
+ TAS2770_TDM_CFG_REG2_RXW_16BITS);
+ tas2770->v_sense_slot = tas2770->i_sense_slot + 2;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2,
+ TAS2770_TDM_CFG_REG2_RXW_MASK,
+ TAS2770_TDM_CFG_REG2_RXW_24BITS);
+ tas2770->v_sense_slot = tas2770->i_sense_slot + 4;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2,
+ TAS2770_TDM_CFG_REG2_RXW_MASK,
+ TAS2770_TDM_CFG_REG2_RXW_32BITS);
+ tas2770->v_sense_slot = tas2770->i_sense_slot + 4;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG5,
+ TAS2770_TDM_CFG_REG5_VSNS_MASK |
+ TAS2770_TDM_CFG_REG5_50_MASK,
+ TAS2770_TDM_CFG_REG5_VSNS_ENABLE |
+ tas2770->v_sense_slot);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG6,
+ TAS2770_TDM_CFG_REG6_ISNS_MASK |
+ TAS2770_TDM_CFG_REG6_50_MASK,
+ TAS2770_TDM_CFG_REG6_ISNS_ENABLE |
+ tas2770->i_sense_slot);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int tas2770_set_samplerate(struct tas2770_priv *tas2770, int samplerate)
+{
+ struct snd_soc_component *component = tas2770->component;
+ int ramp_rate_val;
+ int ret;
+
+ switch (samplerate) {
+ case 48000:
+ ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ |
+ TAS2770_TDM_CFG_REG0_31_44_1_48KHZ;
+ break;
+ case 44100:
+ ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ |
+ TAS2770_TDM_CFG_REG0_31_44_1_48KHZ;
+ break;
+ case 96000:
+ ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ |
+ TAS2770_TDM_CFG_REG0_31_88_2_96KHZ;
+ break;
+ case 88200:
+ ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ |
+ TAS2770_TDM_CFG_REG0_31_88_2_96KHZ;
+ break;
+ case 192000:
+ ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ |
+ TAS2770_TDM_CFG_REG0_31_176_4_192KHZ;
+ break;
+ case 176400:
+ ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ |
+ TAS2770_TDM_CFG_REG0_31_176_4_192KHZ;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
+ TAS2770_TDM_CFG_REG0_SMP_MASK |
+ TAS2770_TDM_CFG_REG0_31_MASK,
+ ramp_rate_val);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int tas2770_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 tas2770_priv *tas2770 =
+ snd_soc_component_get_drvdata(component);
+ int ret;
+
+ ret = tas2770_set_bitwidth(tas2770, params_format(params));
+ if (ret)
+ return ret;
+
+ return tas2770_set_samplerate(tas2770, params_rate(params));
+}
+
+static int tas2770_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct snd_soc_component *component = dai->component;
+ struct tas2770_priv *tas2770 =
+ snd_soc_component_get_drvdata(component);
+ u8 tdm_rx_start_slot = 0, invert_fpol = 0, fpol_preinv = 0, asi_cfg_1 = 0;
+ int ret;
+
+ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+ case SND_SOC_DAIFMT_CBC_CFC:
+ break;
+ default:
+ dev_err(tas2770->dev, "ASI invalid DAI clocking\n");
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_IF:
+ invert_fpol = 1;
+ fallthrough;
+ case SND_SOC_DAIFMT_NB_NF:
+ asi_cfg_1 |= TAS2770_TDM_CFG_REG1_RX_RSING;
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ invert_fpol = 1;
+ fallthrough;
+ case SND_SOC_DAIFMT_IB_NF:
+ asi_cfg_1 |= TAS2770_TDM_CFG_REG1_RX_FALING;
+ break;
+ default:
+ dev_err(tas2770->dev, "ASI format Inverse is not found\n");
+ return -EINVAL;
+ }
+
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG1,
+ TAS2770_TDM_CFG_REG1_RX_MASK,
+ asi_cfg_1);
+ if (ret < 0)
+ return ret;
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ tdm_rx_start_slot = 1;
+ fpol_preinv = 0;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ tdm_rx_start_slot = 0;
+ fpol_preinv = 1;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ tdm_rx_start_slot = 1;
+ fpol_preinv = 1;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ tdm_rx_start_slot = 0;
+ fpol_preinv = 1;
+ break;
+ default:
+ dev_err(tas2770->dev,
+ "DAI Format is not found, fmt=0x%x\n", fmt);
+ return -EINVAL;
+ }
+
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG1,
+ TAS2770_TDM_CFG_REG1_MASK,
+ (tdm_rx_start_slot << TAS2770_TDM_CFG_REG1_51_SHIFT));
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0,
+ TAS2770_TDM_CFG_REG0_FPOL_MASK,
+ (fpol_preinv ^ invert_fpol)
+ ? TAS2770_TDM_CFG_REG0_FPOL_RSING
+ : TAS2770_TDM_CFG_REG0_FPOL_FALING);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int tas2770_set_dai_tdm_slot(struct snd_soc_dai *dai,
+ unsigned int tx_mask,
+ unsigned int rx_mask,
+ int slots, int slot_width)
+{
+ struct snd_soc_component *component = dai->component;
+ int left_slot, right_slot;
+ int ret;
+
+ if (tx_mask == 0 || rx_mask != 0)
+ return -EINVAL;
+
+ left_slot = __ffs(tx_mask);
+ tx_mask &= ~(1 << left_slot);
+ if (tx_mask == 0) {
+ right_slot = left_slot;
+ } else {
+ right_slot = __ffs(tx_mask);
+ tx_mask &= ~(1 << right_slot);
+ }
+
+ if (tx_mask != 0 || left_slot >= slots || right_slot >= slots)
+ return -EINVAL;
+
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG3,
+ TAS2770_TDM_CFG_REG3_30_MASK,
+ (left_slot << TAS2770_TDM_CFG_REG3_30_SHIFT));
+ if (ret < 0)
+ return ret;
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG3,
+ TAS2770_TDM_CFG_REG3_RXS_MASK,
+ (right_slot << TAS2770_TDM_CFG_REG3_RXS_SHIFT));
+ if (ret < 0)
+ return ret;
+
+ switch (slot_width) {
+ case 16:
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2,
+ TAS2770_TDM_CFG_REG2_RXS_MASK,
+ TAS2770_TDM_CFG_REG2_RXS_16BITS);
+ break;
+ case 24:
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2,
+ TAS2770_TDM_CFG_REG2_RXS_MASK,
+ TAS2770_TDM_CFG_REG2_RXS_24BITS);
+ break;
+ case 32:
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2,
+ TAS2770_TDM_CFG_REG2_RXS_MASK,
+ TAS2770_TDM_CFG_REG2_RXS_32BITS);
+ break;
+ case 0:
+ /* Do not change slot width */
+ ret = 0;
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops tas2770_dai_ops = {
+ .mute_stream = tas2770_mute,
+ .hw_params = tas2770_hw_params,
+ .set_fmt = tas2770_set_fmt,
+ .set_tdm_slot = tas2770_set_dai_tdm_slot,
+ .no_capture_mute = 1,
+};
+
+#define TAS2770_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
+ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+#define TAS2770_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
+ SNDRV_PCM_RATE_96000 |\
+ SNDRV_PCM_RATE_192000\
+ )
+
+static struct snd_soc_dai_driver tas2770_dai_driver[] = {
+ {
+ .name = "tas2770 ASI1",
+ .id = 0,
+ .playback = {
+ .stream_name = "ASI1 Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = TAS2770_RATES,
+ .formats = TAS2770_FORMATS,
+ },
+ .capture = {
+ .stream_name = "ASI1 Capture",
+ .channels_min = 0,
+ .channels_max = 2,
+ .rates = TAS2770_RATES,
+ .formats = TAS2770_FORMATS,
+ },
+ .ops = &tas2770_dai_ops,
+ .symmetric_rate = 1,
+ },
+};
+
+static const struct regmap_config tas2770_i2c_regmap;
+
+static int tas2770_codec_probe(struct snd_soc_component *component)
+{
+ struct tas2770_priv *tas2770 =
+ snd_soc_component_get_drvdata(component);
+
+ tas2770->component = component;
+
+ if (tas2770->sdz_gpio) {
+ gpiod_set_value_cansleep(tas2770->sdz_gpio, 1);
+ usleep_range(1000, 2000);
+ }
+
+ tas2770_reset(tas2770);
+ regmap_reinit_cache(tas2770->regmap, &tas2770_i2c_regmap);
+
+ return 0;
+}
+
+static DECLARE_TLV_DB_SCALE(tas2770_digital_tlv, 1100, 50, 0);
+static DECLARE_TLV_DB_SCALE(tas2770_playback_volume, -12750, 50, 0);
+
+static const struct snd_kcontrol_new tas2770_snd_controls[] = {
+ SOC_SINGLE_TLV("Speaker Playback Volume", TAS2770_PLAY_CFG_REG2,
+ 0, TAS2770_PLAY_CFG_REG2_VMAX, 1, tas2770_playback_volume),
+ SOC_SINGLE_TLV("Amp Gain Volume", TAS2770_PLAY_CFG_REG0, 0, 0x14, 0,
+ tas2770_digital_tlv),
+};
+
+static const struct snd_soc_component_driver soc_component_driver_tas2770 = {
+ .probe = tas2770_codec_probe,
+ .suspend = tas2770_codec_suspend,
+ .resume = tas2770_codec_resume,
+ .controls = tas2770_snd_controls,
+ .num_controls = ARRAY_SIZE(tas2770_snd_controls),
+ .dapm_widgets = tas2770_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(tas2770_dapm_widgets),
+ .dapm_routes = tas2770_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(tas2770_audio_map),
+ .idle_bias_on = 1,
+ .endianness = 1,
+};
+
+static int tas2770_register_codec(struct tas2770_priv *tas2770)
+{
+ return devm_snd_soc_register_component(tas2770->dev,
+ &soc_component_driver_tas2770,
+ tas2770_dai_driver, ARRAY_SIZE(tas2770_dai_driver));
+}
+
+static const struct reg_default tas2770_reg_defaults[] = {
+ { TAS2770_PAGE, 0x00 },
+ { TAS2770_SW_RST, 0x00 },
+ { TAS2770_PWR_CTRL, 0x0e },
+ { TAS2770_PLAY_CFG_REG0, 0x10 },
+ { TAS2770_PLAY_CFG_REG1, 0x01 },
+ { TAS2770_PLAY_CFG_REG2, 0x00 },
+ { TAS2770_MSC_CFG_REG0, 0x07 },
+ { TAS2770_TDM_CFG_REG1, 0x02 },
+ { TAS2770_TDM_CFG_REG2, 0x0a },
+ { TAS2770_TDM_CFG_REG3, 0x10 },
+ { TAS2770_INT_MASK_REG0, 0xfc },
+ { TAS2770_INT_MASK_REG1, 0xb1 },
+ { TAS2770_INT_CFG, 0x05 },
+ { TAS2770_MISC_IRQ, 0x81 },
+ { TAS2770_CLK_CGF, 0x0c },
+
+};
+
+static bool tas2770_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TAS2770_PAGE: /* regmap implementation requires this */
+ case TAS2770_SW_RST: /* always clears after write */
+ case TAS2770_BO_PRV_REG0:/* has a self clearing bit */
+ case TAS2770_LVE_INT_REG0:
+ case TAS2770_LVE_INT_REG1:
+ case TAS2770_LAT_INT_REG0:/* Sticky interrupt flags */
+ case TAS2770_LAT_INT_REG1:/* Sticky interrupt flags */
+ case TAS2770_VBAT_MSB:
+ case TAS2770_VBAT_LSB:
+ case TAS2770_TEMP_MSB:
+ case TAS2770_TEMP_LSB:
+ return true;
+ }
+
+ return false;
+}
+
+static bool tas2770_writeable(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TAS2770_LVE_INT_REG0:
+ case TAS2770_LVE_INT_REG1:
+ case TAS2770_LAT_INT_REG0:
+ case TAS2770_LAT_INT_REG1:
+ case TAS2770_VBAT_MSB:
+ case TAS2770_VBAT_LSB:
+ case TAS2770_TEMP_MSB:
+ case TAS2770_TEMP_LSB:
+ case TAS2770_TDM_CLK_DETC:
+ case TAS2770_REV_AND_GPID:
+ return false;
+ }
+
+ return true;
+}
+
+static const struct regmap_range_cfg tas2770_regmap_ranges[] = {
+ {
+ .range_min = 0,
+ .range_max = 1 * 128,
+ .selector_reg = TAS2770_PAGE,
+ .selector_mask = 0xff,
+ .selector_shift = 0,
+ .window_start = 0,
+ .window_len = 128,
+ },
+};
+
+static const struct regmap_config tas2770_i2c_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .writeable_reg = tas2770_writeable,
+ .volatile_reg = tas2770_volatile,
+ .reg_defaults = tas2770_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(tas2770_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
+ .ranges = tas2770_regmap_ranges,
+ .num_ranges = ARRAY_SIZE(tas2770_regmap_ranges),
+ .max_register = 1 * 128,
+};
+
+static int tas2770_parse_dt(struct device *dev, struct tas2770_priv *tas2770)
+{
+ int rc = 0;
+
+ rc = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
+ &tas2770->i_sense_slot);
+ if (rc) {
+ dev_info(tas2770->dev, "Property %s is missing setting default slot\n",
+ "ti,imon-slot-no");
+
+ tas2770->i_sense_slot = 0;
+ }
+
+ rc = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
+ &tas2770->v_sense_slot);
+ if (rc) {
+ dev_info(tas2770->dev, "Property %s is missing setting default slot\n",
+ "ti,vmon-slot-no");
+
+ tas2770->v_sense_slot = 2;
+ }
+
+ tas2770->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
+ if (IS_ERR(tas2770->sdz_gpio)) {
+ if (PTR_ERR(tas2770->sdz_gpio) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
+ tas2770->sdz_gpio = NULL;
+ }
+
+ return 0;
+}
+
+static int tas2770_i2c_probe(struct i2c_client *client)
+{
+ struct tas2770_priv *tas2770;
+ int result;
+
+ tas2770 = devm_kzalloc(&client->dev, sizeof(struct tas2770_priv),
+ GFP_KERNEL);
+ if (!tas2770)
+ return -ENOMEM;
+
+ tas2770->dev = &client->dev;
+ i2c_set_clientdata(client, tas2770);
+ dev_set_drvdata(&client->dev, tas2770);
+
+ tas2770->regmap = devm_regmap_init_i2c(client, &tas2770_i2c_regmap);
+ if (IS_ERR(tas2770->regmap)) {
+ result = PTR_ERR(tas2770->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ result);
+ return result;
+ }
+
+ if (client->dev.of_node) {
+ result = tas2770_parse_dt(&client->dev, tas2770);
+ if (result) {
+ dev_err(tas2770->dev, "%s: Failed to parse devicetree\n",
+ __func__);
+ return result;
+ }
+ }
+
+ tas2770->reset_gpio = devm_gpiod_get_optional(tas2770->dev, "reset",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(tas2770->reset_gpio)) {
+ if (PTR_ERR(tas2770->reset_gpio) == -EPROBE_DEFER) {
+ tas2770->reset_gpio = NULL;
+ return -EPROBE_DEFER;
+ }
+ }
+
+ result = tas2770_register_codec(tas2770);
+ if (result)
+ dev_err(tas2770->dev, "Register codec failed.\n");
+
+ return result;
+}
+
+static const struct i2c_device_id tas2770_i2c_id[] = {
+ { "tas2770", 0},
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, tas2770_i2c_id);
+
+#if defined(CONFIG_OF)
+static const struct of_device_id tas2770_of_match[] = {
+ { .compatible = "ti,tas2770" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, tas2770_of_match);
+#endif
+
+static struct i2c_driver tas2770_i2c_driver = {
+ .driver = {
+ .name = "tas2770",
+ .of_match_table = of_match_ptr(tas2770_of_match),
+ },
+ .probe_new = tas2770_i2c_probe,
+ .id_table = tas2770_i2c_id,
+};
+module_i2c_driver(tas2770_i2c_driver);
+
+MODULE_AUTHOR("Shi Fu <shifu0704@thundersoft.com>");
+MODULE_DESCRIPTION("TAS2770 I2C Smart Amplifier driver");
+MODULE_LICENSE("GPL v2");