From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- sound/soc/codecs/src4xxx.c | 518 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 518 insertions(+) create mode 100644 sound/soc/codecs/src4xxx.c (limited to 'sound/soc/codecs/src4xxx.c') diff --git a/sound/soc/codecs/src4xxx.c b/sound/soc/codecs/src4xxx.c new file mode 100644 index 000000000..db4e280dd --- /dev/null +++ b/sound/soc/codecs/src4xxx.c @@ -0,0 +1,518 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// TI SRC4xxx Audio Codec driver +// +// Copyright 2021-2022 Deqx Pty Ltd +// Author: Matt Flax + +#include + +#include +#include + +#include "src4xxx.h" + +struct src4xxx { + struct regmap *regmap; + bool master[2]; + int mclk_hz; + struct device *dev; +}; + +enum {SRC4XXX_PORTA, SRC4XXX_PORTB}; + +/* SRC attenuation */ +static const DECLARE_TLV_DB_SCALE(src_tlv, -12750, 50, 0); + +static const struct snd_kcontrol_new src4xxx_controls[] = { + SOC_DOUBLE_R_TLV("SRC Volume", + SRC4XXX_SCR_CTL_30, SRC4XXX_SCR_CTL_31, 0, 255, 1, src_tlv), +}; + +/* I2S port control */ +static const char * const port_out_src_text[] = { + "loopback", "other_port", "DIR", "SRC" +}; +static SOC_ENUM_SINGLE_DECL(porta_out_src_enum, SRC4XXX_PORTA_CTL_03, 4, + port_out_src_text); +static SOC_ENUM_SINGLE_DECL(portb_out_src_enum, SRC4XXX_PORTB_CTL_05, 4, + port_out_src_text); +static const struct snd_kcontrol_new porta_out_control = + SOC_DAPM_ENUM("Port A source select", porta_out_src_enum); +static const struct snd_kcontrol_new portb_out_control = + SOC_DAPM_ENUM("Port B source select", portb_out_src_enum); + +/* Digital audio transmitter control */ +static const char * const dit_mux_text[] = {"Port A", "Port B", "DIR", "SRC"}; +static SOC_ENUM_SINGLE_DECL(dit_mux_enum, SRC4XXX_TX_CTL_07, 3, dit_mux_text); +static const struct snd_kcontrol_new dit_mux_control = + SOC_DAPM_ENUM("DIT source", dit_mux_enum); + +/* SRC control */ +static const char * const src_in_text[] = {"Port A", "Port B", "DIR"}; +static SOC_ENUM_SINGLE_DECL(src_in_enum, SRC4XXX_SCR_CTL_2D, 0, src_in_text); +static const struct snd_kcontrol_new src_in_control = + SOC_DAPM_ENUM("SRC source select", src_in_enum); + +/* DIR control */ +static const char * const dir_in_text[] = {"Ch 1", "Ch 2", "Ch 3", "Ch 4"}; +static SOC_ENUM_SINGLE_DECL(dir_in_enum, SRC4XXX_RCV_CTL_0D, 0, dir_in_text); +static const struct snd_kcontrol_new dir_in_control = + SOC_DAPM_ENUM("Digital Input", dir_in_enum); + +static const struct snd_soc_dapm_widget src4xxx_dapm_widgets[] = { + SND_SOC_DAPM_INPUT("loopback_A"), + SND_SOC_DAPM_INPUT("other_port_A"), + SND_SOC_DAPM_INPUT("DIR_A"), + SND_SOC_DAPM_INPUT("SRC_A"), + SND_SOC_DAPM_MUX("Port A source", + SND_SOC_NOPM, 0, 0, &porta_out_control), + + SND_SOC_DAPM_INPUT("loopback_B"), + SND_SOC_DAPM_INPUT("other_port_B"), + SND_SOC_DAPM_INPUT("DIR_B"), + SND_SOC_DAPM_INPUT("SRC_B"), + SND_SOC_DAPM_MUX("Port B source", + SND_SOC_NOPM, 0, 0, &portb_out_control), + + SND_SOC_DAPM_INPUT("Port_A"), + SND_SOC_DAPM_INPUT("Port_B"), + SND_SOC_DAPM_INPUT("DIR_"), + + /* Digital audio receivers and transmitters */ + SND_SOC_DAPM_OUTPUT("DIR_OUT"), + SND_SOC_DAPM_OUTPUT("SRC_OUT"), + SND_SOC_DAPM_MUX("DIT Out Src", SRC4XXX_PWR_RST_01, + SRC4XXX_ENABLE_DIT_SHIFT, 1, &dit_mux_control), + + /* Audio Interface */ + SND_SOC_DAPM_AIF_IN("AIF_A_RX", "Playback A", 0, + SRC4XXX_PWR_RST_01, SRC4XXX_ENABLE_PORT_A_SHIFT, 1), + SND_SOC_DAPM_AIF_OUT("AIF_A_TX", "Capture A", 0, + SRC4XXX_PWR_RST_01, SRC4XXX_ENABLE_PORT_A_SHIFT, 1), + SND_SOC_DAPM_AIF_IN("AIF_B_RX", "Playback B", 0, + SRC4XXX_PWR_RST_01, SRC4XXX_ENABLE_PORT_B_SHIFT, 1), + SND_SOC_DAPM_AIF_OUT("AIF_B_TX", "Capture B", 0, + SRC4XXX_PWR_RST_01, SRC4XXX_ENABLE_PORT_B_SHIFT, 1), + + SND_SOC_DAPM_MUX("SRC source", SND_SOC_NOPM, 0, 0, &src_in_control), + + SND_SOC_DAPM_INPUT("MCLK"), + SND_SOC_DAPM_INPUT("RXMCLKI"), + SND_SOC_DAPM_INPUT("RXMCLKO"), + + SND_SOC_DAPM_INPUT("RX1"), + SND_SOC_DAPM_INPUT("RX2"), + SND_SOC_DAPM_INPUT("RX3"), + SND_SOC_DAPM_INPUT("RX4"), + SND_SOC_DAPM_MUX("Digital Input", SRC4XXX_PWR_RST_01, + SRC4XXX_ENABLE_DIR_SHIFT, 1, &dir_in_control), +}; + +static const struct snd_soc_dapm_route src4xxx_audio_routes[] = { + /* I2S Input to Output Routing */ + {"Port A source", "loopback", "loopback_A"}, + {"Port A source", "other_port", "other_port_A"}, + {"Port A source", "DIR", "DIR_A"}, + {"Port A source", "SRC", "SRC_A"}, + {"Port B source", "loopback", "loopback_B"}, + {"Port B source", "other_port", "other_port_B"}, + {"Port B source", "DIR", "DIR_B"}, + {"Port B source", "SRC", "SRC_B"}, + /* DIT muxing */ + {"DIT Out Src", "Port A", "Capture A"}, + {"DIT Out Src", "Port B", "Capture B"}, + {"DIT Out Src", "DIR", "DIR_OUT"}, + {"DIT Out Src", "SRC", "SRC_OUT"}, + + /* SRC input selection */ + {"SRC source", "Port A", "Port_A"}, + {"SRC source", "Port B", "Port_B"}, + {"SRC source", "DIR", "DIR_"}, + /* SRC mclk selection */ + {"SRC mclk source", "Master (MCLK)", "MCLK"}, + {"SRC mclk source", "Master (RXCLKI)", "RXMCLKI"}, + {"SRC mclk source", "Recovered receiver clk", "RXMCLKO"}, + /* DIR input selection */ + {"Digital Input", "Ch 1", "RX1"}, + {"Digital Input", "Ch 2", "RX2"}, + {"Digital Input", "Ch 3", "RX3"}, + {"Digital Input", "Ch 4", "RX4"}, +}; + + +static const struct snd_soc_component_driver src4xxx_driver = { + .controls = src4xxx_controls, + .num_controls = ARRAY_SIZE(src4xxx_controls), + + .dapm_widgets = src4xxx_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(src4xxx_dapm_widgets), + .dapm_routes = src4xxx_audio_routes, + .num_dapm_routes = ARRAY_SIZE(src4xxx_audio_routes), +}; + +static int src4xxx_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_component *component = dai->component; + struct src4xxx *src4xxx = snd_soc_component_get_drvdata(component); + unsigned int ctrl; + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + ctrl = SRC4XXX_BUS_MASTER; + src4xxx->master[dai->id] = true; + break; + case SND_SOC_DAIFMT_CBS_CFS: + ctrl = 0; + src4xxx->master[dai->id] = false; + break; + default: + return -EINVAL; + break; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + ctrl |= SRC4XXX_BUS_I2S; + break; + case SND_SOC_DAIFMT_LEFT_J: + ctrl |= SRC4XXX_BUS_LEFT_J; + break; + case SND_SOC_DAIFMT_RIGHT_J: + ctrl |= SRC4XXX_BUS_RIGHT_J_24; + break; + default: + return -EINVAL; + break; + } + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + default: + return -EINVAL; + break; + } + + regmap_update_bits(src4xxx->regmap, SRC4XXX_BUS_FMT(dai->id), + SRC4XXX_BUS_FMT_MS_MASK, ctrl); + + return 0; +} + +static int src4xxx_set_mclk_hz(struct snd_soc_dai *codec_dai, + int clk_id, unsigned int freq, int dir) +{ + struct snd_soc_component *component = codec_dai->component; + struct src4xxx *src4xxx = snd_soc_component_get_drvdata(component); + + dev_info(component->dev, "changing mclk rate from %d to %d Hz\n", + src4xxx->mclk_hz, freq); + src4xxx->mclk_hz = freq; + + return 0; +} + +static int src4xxx_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 src4xxx *src4xxx = snd_soc_component_get_drvdata(component); + unsigned int mclk_div; + int val, pj, jd, d; + int reg; + int ret; + + switch (dai->id) { + case SRC4XXX_PORTB: + reg = SRC4XXX_PORTB_CTL_06; + break; + default: + reg = SRC4XXX_PORTA_CTL_04; + break; + } + + if (src4xxx->master[dai->id]) { + mclk_div = src4xxx->mclk_hz/params_rate(params); + if (src4xxx->mclk_hz != mclk_div*params_rate(params)) { + dev_err(component->dev, + "mclk %d / rate %d has a remainder.\n", + src4xxx->mclk_hz, params_rate(params)); + return -EINVAL; + } + + val = ((int)mclk_div - 128) / 128; + if ((val < 0) | (val > 3)) { + dev_err(component->dev, + "div register setting %d is out of range\n", + val); + dev_err(component->dev, + "unsupported sample rate %d Hz for the master clock of %d Hz\n", + params_rate(params), src4xxx->mclk_hz); + return -EINVAL; + } + + /* set the TX DIV */ + ret = regmap_update_bits(src4xxx->regmap, + SRC4XXX_TX_CTL_07, SRC4XXX_TX_MCLK_DIV_MASK, + val<dev, + "Couldn't set the TX's div register to %d << %d = 0x%x\n", + val, SRC4XXX_TX_MCLK_DIV_SHIFT, + val<mclk_hz) { + case 24576000: + pj = 0x22; + jd = 0x00; + d = 0x00; + break; + case 22579200: + pj = 0x22; + jd = 0x1b; + d = 0xa3; + break; + default: + /* don't error out here, + * other parts of the chip are still functional + * Dummy initialize variables to avoid + * -Wsometimes-uninitialized from clang. + */ + dev_info(component->dev, + "Couldn't set the RCV PLL as this master clock rate is unknown. Chosen regmap values may not match real world values.\n"); + pj = 0x0; + jd = 0xff; + d = 0xff; + break; + } + ret = regmap_write(src4xxx->regmap, SRC4XXX_RCV_PLL_0F, pj); + if (ret < 0) + dev_err(component->dev, + "Failed to update PLL register 0x%x\n", + SRC4XXX_RCV_PLL_0F); + ret = regmap_write(src4xxx->regmap, SRC4XXX_RCV_PLL_10, jd); + if (ret < 0) + dev_err(component->dev, + "Failed to update PLL register 0x%x\n", + SRC4XXX_RCV_PLL_10); + ret = regmap_write(src4xxx->regmap, SRC4XXX_RCV_PLL_11, d); + if (ret < 0) + dev_err(component->dev, + "Failed to update PLL register 0x%x\n", + SRC4XXX_RCV_PLL_11); + + ret = regmap_update_bits(src4xxx->regmap, + SRC4XXX_TX_CTL_07, SRC4XXX_TX_MCLK_DIV_MASK, + val<dev, + "Couldn't set the TX's div register to %d << %d = 0x%x\n", + val, SRC4XXX_TX_MCLK_DIV_SHIFT, + val<regmap, reg, + SRC4XXX_MCLK_DIV_MASK, val); + } else { + dev_info(dai->dev, "not setting up MCLK as not master\n"); + } + + return 0; +}; + +static const struct snd_soc_dai_ops src4xxx_dai_ops = { + .hw_params = src4xxx_hw_params, + .set_sysclk = src4xxx_set_mclk_hz, + .set_fmt = src4xxx_set_dai_fmt, +}; + +#define SRC4XXX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE) +#define SRC4XXX_RATES (SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000|\ + SNDRV_PCM_RATE_88200|\ + SNDRV_PCM_RATE_96000|\ + SNDRV_PCM_RATE_176400|\ + SNDRV_PCM_RATE_192000) + +static struct snd_soc_dai_driver src4xxx_dai_driver[] = { + { + .id = SRC4XXX_PORTA, + .name = "src4xxx-portA", + .playback = { + .stream_name = "Playback A", + .channels_min = 2, + .channels_max = 2, + .rates = SRC4XXX_RATES, + .formats = SRC4XXX_FORMATS, + }, + .capture = { + .stream_name = "Capture A", + .channels_min = 2, + .channels_max = 2, + .rates = SRC4XXX_RATES, + .formats = SRC4XXX_FORMATS, + }, + .ops = &src4xxx_dai_ops, + }, + { + .id = SRC4XXX_PORTB, + .name = "src4xxx-portB", + .playback = { + .stream_name = "Playback B", + .channels_min = 2, + .channels_max = 2, + .rates = SRC4XXX_RATES, + .formats = SRC4XXX_FORMATS, + }, + .capture = { + .stream_name = "Capture B", + .channels_min = 2, + .channels_max = 2, + .rates = SRC4XXX_RATES, + .formats = SRC4XXX_FORMATS, + }, + .ops = &src4xxx_dai_ops, + }, +}; + +static const struct reg_default src4xxx_reg_defaults[] = { + { SRC4XXX_PWR_RST_01, 0x00 }, /* all powered down intially */ + { SRC4XXX_PORTA_CTL_03, 0x00 }, + { SRC4XXX_PORTA_CTL_04, 0x00 }, + { SRC4XXX_PORTB_CTL_05, 0x00 }, + { SRC4XXX_PORTB_CTL_06, 0x00 }, + { SRC4XXX_TX_CTL_07, 0x00 }, + { SRC4XXX_TX_CTL_08, 0x00 }, + { SRC4XXX_TX_CTL_09, 0x00 }, + { SRC4XXX_SRC_DIT_IRQ_MSK_0B, 0x00 }, + { SRC4XXX_SRC_DIT_IRQ_MODE_0C, 0x00 }, + { SRC4XXX_RCV_CTL_0D, 0x00 }, + { SRC4XXX_RCV_CTL_0E, 0x00 }, + { SRC4XXX_RCV_PLL_0F, 0x00 }, /* not spec. in the datasheet */ + { SRC4XXX_RCV_PLL_10, 0xff }, /* not spec. in the datasheet */ + { SRC4XXX_RCV_PLL_11, 0xff }, /* not spec. in the datasheet */ + { SRC4XXX_RVC_IRQ_MSK_16, 0x00 }, + { SRC4XXX_RVC_IRQ_MSK_17, 0x00 }, + { SRC4XXX_RVC_IRQ_MODE_18, 0x00 }, + { SRC4XXX_RVC_IRQ_MODE_19, 0x00 }, + { SRC4XXX_RVC_IRQ_MODE_1A, 0x00 }, + { SRC4XXX_GPIO_1_1B, 0x00 }, + { SRC4XXX_GPIO_2_1C, 0x00 }, + { SRC4XXX_GPIO_3_1D, 0x00 }, + { SRC4XXX_GPIO_4_1E, 0x00 }, + { SRC4XXX_SCR_CTL_2D, 0x00 }, + { SRC4XXX_SCR_CTL_2E, 0x00 }, + { SRC4XXX_SCR_CTL_2F, 0x00 }, + { SRC4XXX_SCR_CTL_30, 0x00 }, + { SRC4XXX_SCR_CTL_31, 0x00 }, +}; + +int src4xxx_probe(struct device *dev, struct regmap *regmap, + void (*switch_mode)(struct device *dev)) +{ + struct src4xxx *src4xxx; + int ret; + + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + src4xxx = devm_kzalloc(dev, sizeof(*src4xxx), GFP_KERNEL); + if (!src4xxx) + return -ENOMEM; + + src4xxx->regmap = regmap; + src4xxx->dev = dev; + src4xxx->mclk_hz = 0; /* mclk has not been configured yet */ + dev_set_drvdata(dev, src4xxx); + + ret = regmap_write(regmap, SRC4XXX_PWR_RST_01, SRC4XXX_RESET); + if (ret < 0) + dev_err(dev, "Failed to issue reset: %d\n", ret); + usleep_range(1, 500); /* sleep for more then 500 ns */ + ret = regmap_write(regmap, SRC4XXX_PWR_RST_01, SRC4XXX_POWER_DOWN); + if (ret < 0) + dev_err(dev, "Failed to decommission reset: %d\n", ret); + usleep_range(500, 1000); /* sleep for 500 us or more */ + + ret = regmap_update_bits(src4xxx->regmap, SRC4XXX_PWR_RST_01, + SRC4XXX_POWER_ENABLE, SRC4XXX_POWER_ENABLE); + if (ret < 0) + dev_err(dev, "Failed to port A and B : %d\n", ret); + + /* set receiver to use master clock (rcv mclk is most likely jittery) */ + ret = regmap_update_bits(src4xxx->regmap, SRC4XXX_RCV_CTL_0D, + SRC4XXX_RXCLK_MCLK, SRC4XXX_RXCLK_MCLK); + if (ret < 0) + dev_err(dev, + "Failed to enable mclk as the PLL1 DIR reference : %d\n", ret); + + /* default to leaving the PLL2 running on loss of lock, divide by 8 */ + ret = regmap_update_bits(src4xxx->regmap, SRC4XXX_RCV_CTL_0E, + SRC4XXX_PLL2_DIV_8 | SRC4XXX_REC_MCLK_EN | SRC4XXX_PLL2_LOL, + SRC4XXX_PLL2_DIV_8 | SRC4XXX_REC_MCLK_EN | SRC4XXX_PLL2_LOL); + if (ret < 0) + dev_err(dev, "Failed to enable mclk rec and div : %d\n", ret); + + ret = devm_snd_soc_register_component(dev, &src4xxx_driver, + src4xxx_dai_driver, ARRAY_SIZE(src4xxx_dai_driver)); + if (ret == 0) + dev_info(dev, "src4392 probe ok %d\n", ret); + return ret; +} +EXPORT_SYMBOL_GPL(src4xxx_probe); + +static bool src4xxx_volatile_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case SRC4XXX_RES_00: + case SRC4XXX_GLOBAL_ITR_STS_02: + case SRC4XXX_SRC_DIT_STS_0A: + case SRC4XXX_NON_AUDIO_D_12: + case SRC4XXX_RVC_STS_13: + case SRC4XXX_RVC_STS_14: + case SRC4XXX_RVC_STS_15: + case SRC4XXX_SUB_CODE_1F: + case SRC4XXX_SUB_CODE_20: + case SRC4XXX_SUB_CODE_21: + case SRC4XXX_SUB_CODE_22: + case SRC4XXX_SUB_CODE_23: + case SRC4XXX_SUB_CODE_24: + case SRC4XXX_SUB_CODE_25: + case SRC4XXX_SUB_CODE_26: + case SRC4XXX_SUB_CODE_27: + case SRC4XXX_SUB_CODE_28: + case SRC4XXX_PC_PREAMBLE_HI_29: + case SRC4XXX_PC_PREAMBLE_LO_2A: + case SRC4XXX_PD_PREAMBLE_HI_2B: + case SRC4XXX_PC_PREAMBLE_LO_2C: + case SRC4XXX_IO_RATIO_32: + case SRC4XXX_IO_RATIO_33: + return true; + } + + if (reg > SRC4XXX_IO_RATIO_33 && reg < SRC4XXX_PAGE_SEL_7F) + return true; + + return false; +} + +const struct regmap_config src4xxx_regmap_config = { + .val_bits = 8, + .reg_bits = 8, + .max_register = SRC4XXX_IO_RATIO_33, + + .reg_defaults = src4xxx_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(src4xxx_reg_defaults), + .volatile_reg = src4xxx_volatile_register, + .cache_type = REGCACHE_RBTREE, +}; +EXPORT_SYMBOL_GPL(src4xxx_regmap_config); + +MODULE_DESCRIPTION("ASoC SRC4XXX CODEC driver"); +MODULE_AUTHOR("Matt Flax "); +MODULE_LICENSE("GPL"); -- cgit v1.2.3