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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /sound/soc/codecs/rt700-sdw.c | |
download | linux-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 'sound/soc/codecs/rt700-sdw.c')
-rw-r--r-- | sound/soc/codecs/rt700-sdw.c | 579 |
1 files changed, 579 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt700-sdw.c b/sound/soc/codecs/rt700-sdw.c new file mode 100644 index 000000000..96fc5f36d --- /dev/null +++ b/sound/soc/codecs/rt700-sdw.c @@ -0,0 +1,579 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// rt700-sdw.c -- rt700 ALSA SoC audio driver +// +// Copyright(c) 2019 Realtek Semiconductor Corp. +// +// + +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/mod_devicetable.h> +#include <linux/soundwire/sdw.h> +#include <linux/soundwire/sdw_type.h> +#include <linux/soundwire/sdw_registers.h> +#include <linux/module.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <sound/soc.h> +#include "rt700.h" +#include "rt700-sdw.h" + +static bool rt700_readable_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case 0x00e0: + case 0x00f0: + case 0x2000 ... 0x200e: + case 0x2012 ... 0x2016: + case 0x201a ... 0x2027: + case 0x2029 ... 0x202a: + case 0x202d ... 0x2034: + case 0x2200 ... 0x2204: + case 0x2206 ... 0x2212: + case 0x2220 ... 0x2223: + case 0x2230 ... 0x2231: + case 0x3000 ... 0x3fff: + case 0x7000 ... 0x7fff: + case 0x8300 ... 0x83ff: + case 0x9c00 ... 0x9cff: + case 0xb900 ... 0xb9ff: + case 0x75201a: + case 0x752045: + case 0x752046: + case 0x752048: + case 0x75204a: + case 0x75206b: + case 0x752080: + case 0x752081: + return true; + default: + return false; + } +} + +static bool rt700_volatile_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case 0x2009: + case 0x2016: + case 0x201b: + case 0x201c: + case 0x201d: + case 0x201f: + case 0x2021: + case 0x2023: + case 0x2230: + case 0x200b ... 0x200e: /* i2c read */ + case 0x2012 ... 0x2015: /* HD-A read */ + case 0x202d ... 0x202f: /* BRA */ + case 0x2201 ... 0x2212: /* i2c debug */ + case 0x2220 ... 0x2223: /* decoded HD-A */ + case 0x9c00 ... 0x9cff: + case 0xb900 ... 0xb9ff: + case 0xff01: + case 0x75201a: + case 0x752046: + case 0x752080: + case 0x752081: + return true; + default: + return false; + } +} + +static int rt700_sdw_read(void *context, unsigned int reg, unsigned int *val) +{ + struct device *dev = context; + struct rt700_priv *rt700 = dev_get_drvdata(dev); + unsigned int sdw_data_3, sdw_data_2, sdw_data_1, sdw_data_0; + unsigned int reg2 = 0, reg3 = 0, reg4 = 0, mask, nid, val2; + unsigned int is_hda_reg = 1, is_index_reg = 0; + int ret; + + if (reg > 0xffff) + is_index_reg = 1; + + mask = reg & 0xf000; + + if (is_index_reg) { /* index registers */ + val2 = reg & 0xff; + reg = reg >> 8; + nid = reg & 0xff; + ret = regmap_write(rt700->sdw_regmap, reg, 0); + if (ret < 0) + return ret; + reg2 = reg + 0x1000; + reg2 |= 0x80; + ret = regmap_write(rt700->sdw_regmap, reg2, val2); + if (ret < 0) + return ret; + + reg3 = RT700_PRIV_DATA_R_H | nid; + ret = regmap_write(rt700->sdw_regmap, + reg3, ((*val >> 8) & 0xff)); + if (ret < 0) + return ret; + reg4 = reg3 + 0x1000; + reg4 |= 0x80; + ret = regmap_write(rt700->sdw_regmap, reg4, (*val & 0xff)); + if (ret < 0) + return ret; + } else if (mask == 0x3000) { + reg += 0x8000; + ret = regmap_write(rt700->sdw_regmap, reg, *val); + if (ret < 0) + return ret; + } else if (mask == 0x7000) { + reg += 0x2000; + reg |= 0x800; + ret = regmap_write(rt700->sdw_regmap, + reg, ((*val >> 8) & 0xff)); + if (ret < 0) + return ret; + reg2 = reg + 0x1000; + reg2 |= 0x80; + ret = regmap_write(rt700->sdw_regmap, reg2, (*val & 0xff)); + if (ret < 0) + return ret; + } else if ((reg & 0xff00) == 0x8300) { /* for R channel */ + reg2 = reg - 0x1000; + reg2 &= ~0x80; + ret = regmap_write(rt700->sdw_regmap, + reg2, ((*val >> 8) & 0xff)); + if (ret < 0) + return ret; + ret = regmap_write(rt700->sdw_regmap, reg, (*val & 0xff)); + if (ret < 0) + return ret; + } else if (mask == 0x9000) { + ret = regmap_write(rt700->sdw_regmap, + reg, ((*val >> 8) & 0xff)); + if (ret < 0) + return ret; + reg2 = reg + 0x1000; + reg2 |= 0x80; + ret = regmap_write(rt700->sdw_regmap, reg2, (*val & 0xff)); + if (ret < 0) + return ret; + } else if (mask == 0xb000) { + ret = regmap_write(rt700->sdw_regmap, reg, *val); + if (ret < 0) + return ret; + } else { + ret = regmap_read(rt700->sdw_regmap, reg, val); + if (ret < 0) + return ret; + is_hda_reg = 0; + } + + if (is_hda_reg || is_index_reg) { + sdw_data_3 = 0; + sdw_data_2 = 0; + sdw_data_1 = 0; + sdw_data_0 = 0; + ret = regmap_read(rt700->sdw_regmap, + RT700_READ_HDA_3, &sdw_data_3); + if (ret < 0) + return ret; + ret = regmap_read(rt700->sdw_regmap, + RT700_READ_HDA_2, &sdw_data_2); + if (ret < 0) + return ret; + ret = regmap_read(rt700->sdw_regmap, + RT700_READ_HDA_1, &sdw_data_1); + if (ret < 0) + return ret; + ret = regmap_read(rt700->sdw_regmap, + RT700_READ_HDA_0, &sdw_data_0); + if (ret < 0) + return ret; + *val = ((sdw_data_3 & 0xff) << 24) | + ((sdw_data_2 & 0xff) << 16) | + ((sdw_data_1 & 0xff) << 8) | (sdw_data_0 & 0xff); + } + + if (is_hda_reg == 0) + dev_dbg(dev, "[%s] %04x => %08x\n", __func__, reg, *val); + else if (is_index_reg) + dev_dbg(dev, "[%s] %04x %04x %04x %04x => %08x\n", + __func__, reg, reg2, reg3, reg4, *val); + else + dev_dbg(dev, "[%s] %04x %04x => %08x\n", + __func__, reg, reg2, *val); + + return 0; +} + +static int rt700_sdw_write(void *context, unsigned int reg, unsigned int val) +{ + struct device *dev = context; + struct rt700_priv *rt700 = dev_get_drvdata(dev); + unsigned int reg2 = 0, reg3, reg4, nid, mask, val2; + unsigned int is_index_reg = 0; + int ret; + + if (reg > 0xffff) + is_index_reg = 1; + + mask = reg & 0xf000; + + if (is_index_reg) { /* index registers */ + val2 = reg & 0xff; + reg = reg >> 8; + nid = reg & 0xff; + ret = regmap_write(rt700->sdw_regmap, reg, 0); + if (ret < 0) + return ret; + reg2 = reg + 0x1000; + reg2 |= 0x80; + ret = regmap_write(rt700->sdw_regmap, reg2, val2); + if (ret < 0) + return ret; + + reg3 = RT700_PRIV_DATA_W_H | nid; + ret = regmap_write(rt700->sdw_regmap, + reg3, ((val >> 8) & 0xff)); + if (ret < 0) + return ret; + reg4 = reg3 + 0x1000; + reg4 |= 0x80; + ret = regmap_write(rt700->sdw_regmap, reg4, (val & 0xff)); + if (ret < 0) + return ret; + is_index_reg = 1; + } else if (reg < 0x4fff) { + ret = regmap_write(rt700->sdw_regmap, reg, val); + if (ret < 0) + return ret; + } else if (reg == 0xff01) { + ret = regmap_write(rt700->sdw_regmap, reg, val); + if (ret < 0) + return ret; + } else if (mask == 0x7000) { + ret = regmap_write(rt700->sdw_regmap, + reg, ((val >> 8) & 0xff)); + if (ret < 0) + return ret; + reg2 = reg + 0x1000; + reg2 |= 0x80; + ret = regmap_write(rt700->sdw_regmap, reg2, (val & 0xff)); + if (ret < 0) + return ret; + } else if ((reg & 0xff00) == 0x8300) { /* for R channel */ + reg2 = reg - 0x1000; + reg2 &= ~0x80; + ret = regmap_write(rt700->sdw_regmap, + reg2, ((val >> 8) & 0xff)); + if (ret < 0) + return ret; + ret = regmap_write(rt700->sdw_regmap, reg, (val & 0xff)); + if (ret < 0) + return ret; + } + + if (reg2 == 0) + dev_dbg(dev, "[%s] %04x <= %04x\n", __func__, reg, val); + else if (is_index_reg) + dev_dbg(dev, "[%s] %04x %04x %04x %04x <= %04x %04x\n", + __func__, reg, reg2, reg3, reg4, val2, val); + else + dev_dbg(dev, "[%s] %04x %04x <= %04x\n", + __func__, reg, reg2, val); + + return 0; +} + +static const struct regmap_config rt700_regmap = { + .reg_bits = 24, + .val_bits = 32, + .readable_reg = rt700_readable_register, + .volatile_reg = rt700_volatile_register, + .max_register = 0x755800, + .reg_defaults = rt700_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(rt700_reg_defaults), + .cache_type = REGCACHE_RBTREE, + .use_single_read = true, + .use_single_write = true, + .reg_read = rt700_sdw_read, + .reg_write = rt700_sdw_write, +}; + +static const struct regmap_config rt700_sdw_regmap = { + .name = "sdw", + .reg_bits = 32, + .val_bits = 8, + .readable_reg = rt700_readable_register, + .max_register = 0xff01, + .cache_type = REGCACHE_NONE, + .use_single_read = true, + .use_single_write = true, +}; + +static int rt700_update_status(struct sdw_slave *slave, + enum sdw_slave_status status) +{ + struct rt700_priv *rt700 = dev_get_drvdata(&slave->dev); + + /* Update the status */ + rt700->status = status; + + if (status == SDW_SLAVE_UNATTACHED) + rt700->hw_init = false; + + /* + * Perform initialization only if slave status is present and + * hw_init flag is false + */ + if (rt700->hw_init || rt700->status != SDW_SLAVE_ATTACHED) + return 0; + + /* perform I/O transfers required for Slave initialization */ + return rt700_io_init(&slave->dev, slave); +} + +static int rt700_read_prop(struct sdw_slave *slave) +{ + struct sdw_slave_prop *prop = &slave->prop; + int nval, i; + u32 bit; + unsigned long addr; + struct sdw_dpn_prop *dpn; + + prop->scp_int1_mask = SDW_SCP_INT1_IMPL_DEF | SDW_SCP_INT1_BUS_CLASH | + SDW_SCP_INT1_PARITY; + prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY; + + prop->paging_support = false; + + /* first we need to allocate memory for set bits in port lists */ + prop->source_ports = 0x14; /* BITMAP: 00010100 */ + prop->sink_ports = 0xA; /* 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; + + i = 0; + dpn = prop->sink_dpn_prop; + addr = prop->sink_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++; + } + + /* set the timeout values */ + prop->clk_stop_timeout = 20; + + /* wake-up event */ + prop->wake_capable = 1; + + return 0; +} + +static int rt700_bus_config(struct sdw_slave *slave, + struct sdw_bus_params *params) +{ + struct rt700_priv *rt700 = dev_get_drvdata(&slave->dev); + int ret; + + memcpy(&rt700->params, params, sizeof(*params)); + + ret = rt700_clock_config(&slave->dev); + if (ret < 0) + dev_err(&slave->dev, "Invalid clk config"); + + return ret; +} + +static int rt700_interrupt_callback(struct sdw_slave *slave, + struct sdw_slave_intr_status *status) +{ + struct rt700_priv *rt700 = dev_get_drvdata(&slave->dev); + + dev_dbg(&slave->dev, + "%s control_port_stat=%x", __func__, status->control_port); + + mutex_lock(&rt700->disable_irq_lock); + if (status->control_port & 0x4 && !rt700->disable_irq) { + mod_delayed_work(system_power_efficient_wq, + &rt700->jack_detect_work, msecs_to_jiffies(250)); + } + mutex_unlock(&rt700->disable_irq_lock); + + return 0; +} + +/* + * slave_ops: callbacks for get_clock_stop_mode, clock_stop and + * port_prep are not defined for now + */ +static const struct sdw_slave_ops rt700_slave_ops = { + .read_prop = rt700_read_prop, + .interrupt_callback = rt700_interrupt_callback, + .update_status = rt700_update_status, + .bus_config = rt700_bus_config, +}; + +static int rt700_sdw_probe(struct sdw_slave *slave, + const struct sdw_device_id *id) +{ + struct regmap *sdw_regmap, *regmap; + + /* Regmap Initialization */ + sdw_regmap = devm_regmap_init_sdw(slave, &rt700_sdw_regmap); + if (IS_ERR(sdw_regmap)) + return PTR_ERR(sdw_regmap); + + regmap = devm_regmap_init(&slave->dev, NULL, + &slave->dev, &rt700_regmap); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + rt700_init(&slave->dev, sdw_regmap, regmap, slave); + + return 0; +} + +static int rt700_sdw_remove(struct sdw_slave *slave) +{ + struct rt700_priv *rt700 = dev_get_drvdata(&slave->dev); + + if (rt700->hw_init) { + cancel_delayed_work_sync(&rt700->jack_detect_work); + cancel_delayed_work_sync(&rt700->jack_btn_check_work); + } + + if (rt700->first_hw_init) + pm_runtime_disable(&slave->dev); + + return 0; +} + +static const struct sdw_device_id rt700_id[] = { + SDW_SLAVE_ENTRY_EXT(0x025d, 0x700, 0x1, 0, 0), + {}, +}; +MODULE_DEVICE_TABLE(sdw, rt700_id); + +static int __maybe_unused rt700_dev_suspend(struct device *dev) +{ + struct rt700_priv *rt700 = dev_get_drvdata(dev); + + if (!rt700->hw_init) + return 0; + + cancel_delayed_work_sync(&rt700->jack_detect_work); + cancel_delayed_work_sync(&rt700->jack_btn_check_work); + + regcache_cache_only(rt700->regmap, true); + + return 0; +} + +static int __maybe_unused rt700_dev_system_suspend(struct device *dev) +{ + struct sdw_slave *slave = dev_to_sdw_dev(dev); + struct rt700_priv *rt700 = dev_get_drvdata(dev); + int ret; + + if (!rt700->hw_init) + return 0; + + /* + * prevent new interrupts from being handled after the + * deferred work completes and before the parent disables + * interrupts on the link + */ + mutex_lock(&rt700->disable_irq_lock); + rt700->disable_irq = true; + ret = sdw_update_no_pm(slave, SDW_SCP_INTMASK1, + SDW_SCP_INT1_IMPL_DEF, 0); + mutex_unlock(&rt700->disable_irq_lock); + + if (ret < 0) { + /* log but don't prevent suspend from happening */ + dev_dbg(&slave->dev, "%s: could not disable imp-def interrupts\n:", __func__); + } + + return rt700_dev_suspend(dev); +} + +#define RT700_PROBE_TIMEOUT 5000 + +static int __maybe_unused rt700_dev_resume(struct device *dev) +{ + struct sdw_slave *slave = dev_to_sdw_dev(dev); + struct rt700_priv *rt700 = dev_get_drvdata(dev); + unsigned long time; + + if (!rt700->first_hw_init) + return 0; + + if (!slave->unattach_request) + goto regmap_sync; + + time = wait_for_completion_timeout(&slave->initialization_complete, + msecs_to_jiffies(RT700_PROBE_TIMEOUT)); + if (!time) { + dev_err(&slave->dev, "Initialization not complete, timed out\n"); + sdw_show_ping_status(slave->bus, true); + + return -ETIMEDOUT; + } + +regmap_sync: + slave->unattach_request = 0; + regcache_cache_only(rt700->regmap, false); + regcache_sync_region(rt700->regmap, 0x3000, 0x8fff); + regcache_sync_region(rt700->regmap, 0x752010, 0x75206b); + + return 0; +} + +static const struct dev_pm_ops rt700_pm = { + SET_SYSTEM_SLEEP_PM_OPS(rt700_dev_system_suspend, rt700_dev_resume) + SET_RUNTIME_PM_OPS(rt700_dev_suspend, rt700_dev_resume, NULL) +}; + +static struct sdw_driver rt700_sdw_driver = { + .driver = { + .name = "rt700", + .owner = THIS_MODULE, + .pm = &rt700_pm, + }, + .probe = rt700_sdw_probe, + .remove = rt700_sdw_remove, + .ops = &rt700_slave_ops, + .id_table = rt700_id, +}; +module_sdw_driver(rt700_sdw_driver); + +MODULE_DESCRIPTION("ASoC RT700 driver SDW"); +MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>"); +MODULE_LICENSE("GPL v2"); |