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/img/img-parallel-out.c | 322 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 322 insertions(+) create mode 100644 sound/soc/img/img-parallel-out.c (limited to 'sound/soc/img/img-parallel-out.c') diff --git a/sound/soc/img/img-parallel-out.c b/sound/soc/img/img-parallel-out.c new file mode 100644 index 000000000..08506b05e --- /dev/null +++ b/sound/soc/img/img-parallel-out.c @@ -0,0 +1,322 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * IMG parallel output controller driver + * + * Copyright (C) 2015 Imagination Technologies Ltd. + * + * Author: Damien Horsley + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#define IMG_PRL_OUT_TX_FIFO 0 + +#define IMG_PRL_OUT_CTL 0x4 +#define IMG_PRL_OUT_CTL_CH_MASK BIT(4) +#define IMG_PRL_OUT_CTL_PACKH_MASK BIT(3) +#define IMG_PRL_OUT_CTL_EDGE_MASK BIT(2) +#define IMG_PRL_OUT_CTL_ME_MASK BIT(1) +#define IMG_PRL_OUT_CTL_SRST_MASK BIT(0) + +struct img_prl_out { + void __iomem *base; + struct clk *clk_sys; + struct clk *clk_ref; + struct snd_dmaengine_dai_dma_data dma_data; + struct device *dev; + struct reset_control *rst; +}; + +static int img_prl_out_suspend(struct device *dev) +{ + struct img_prl_out *prl = dev_get_drvdata(dev); + + clk_disable_unprepare(prl->clk_ref); + + return 0; +} + +static int img_prl_out_resume(struct device *dev) +{ + struct img_prl_out *prl = dev_get_drvdata(dev); + int ret; + + ret = clk_prepare_enable(prl->clk_ref); + if (ret) { + dev_err(dev, "clk_enable failed: %d\n", ret); + return ret; + } + + return 0; +} + +static inline void img_prl_out_writel(struct img_prl_out *prl, + u32 val, u32 reg) +{ + writel(val, prl->base + reg); +} + +static inline u32 img_prl_out_readl(struct img_prl_out *prl, u32 reg) +{ + return readl(prl->base + reg); +} + +static void img_prl_out_reset(struct img_prl_out *prl) +{ + u32 ctl; + + ctl = img_prl_out_readl(prl, IMG_PRL_OUT_CTL) & + ~IMG_PRL_OUT_CTL_ME_MASK; + + reset_control_assert(prl->rst); + reset_control_deassert(prl->rst); + + img_prl_out_writel(prl, ctl, IMG_PRL_OUT_CTL); +} + +static int img_prl_out_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai); + u32 reg; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL); + reg |= IMG_PRL_OUT_CTL_ME_MASK; + img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + img_prl_out_reset(prl); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int img_prl_out_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) +{ + struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai); + unsigned int rate, channels; + u32 reg, control_set = 0; + + rate = params_rate(params); + channels = params_channels(params); + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S32_LE: + control_set |= IMG_PRL_OUT_CTL_PACKH_MASK; + break; + case SNDRV_PCM_FORMAT_S24_LE: + break; + default: + return -EINVAL; + } + + if (channels != 2) + return -EINVAL; + + clk_set_rate(prl->clk_ref, rate * 256); + + reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL); + reg = (reg & ~IMG_PRL_OUT_CTL_PACKH_MASK) | control_set; + img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL); + + return 0; +} + +static int img_prl_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai); + u32 reg, control_set = 0; + int ret; + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_NB_IF: + control_set |= IMG_PRL_OUT_CTL_EDGE_MASK; + break; + default: + return -EINVAL; + } + + ret = pm_runtime_resume_and_get(prl->dev); + if (ret < 0) + return ret; + + reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL); + reg = (reg & ~IMG_PRL_OUT_CTL_EDGE_MASK) | control_set; + img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL); + pm_runtime_put(prl->dev); + + return 0; +} + +static const struct snd_soc_dai_ops img_prl_out_dai_ops = { + .trigger = img_prl_out_trigger, + .hw_params = img_prl_out_hw_params, + .set_fmt = img_prl_out_set_fmt +}; + +static int img_prl_out_dai_probe(struct snd_soc_dai *dai) +{ + struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai); + + snd_soc_dai_init_dma_data(dai, &prl->dma_data, NULL); + + return 0; +} + +static struct snd_soc_dai_driver img_prl_out_dai = { + .probe = img_prl_out_dai_probe, + .playback = { + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S24_LE + }, + .ops = &img_prl_out_dai_ops +}; + +static const struct snd_soc_component_driver img_prl_out_component = { + .name = "img-prl-out", + .legacy_dai_naming = 1, +}; + +static int img_prl_out_probe(struct platform_device *pdev) +{ + struct img_prl_out *prl; + struct resource *res; + void __iomem *base; + int ret; + struct device *dev = &pdev->dev; + + prl = devm_kzalloc(&pdev->dev, sizeof(*prl), GFP_KERNEL); + if (!prl) + return -ENOMEM; + + platform_set_drvdata(pdev, prl); + + prl->dev = &pdev->dev; + + base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); + if (IS_ERR(base)) + return PTR_ERR(base); + + prl->base = base; + + prl->rst = devm_reset_control_get_exclusive(&pdev->dev, "rst"); + if (IS_ERR(prl->rst)) + return dev_err_probe(&pdev->dev, PTR_ERR(prl->rst), + "No top level reset found\n"); + + prl->clk_sys = devm_clk_get(&pdev->dev, "sys"); + if (IS_ERR(prl->clk_sys)) + return dev_err_probe(dev, PTR_ERR(prl->clk_sys), + "Failed to acquire clock 'sys'\n"); + + prl->clk_ref = devm_clk_get(&pdev->dev, "ref"); + if (IS_ERR(prl->clk_ref)) + return dev_err_probe(dev, PTR_ERR(prl->clk_ref), + "Failed to acquire clock 'ref'\n"); + + ret = clk_prepare_enable(prl->clk_sys); + if (ret) + return ret; + + img_prl_out_writel(prl, IMG_PRL_OUT_CTL_EDGE_MASK, IMG_PRL_OUT_CTL); + img_prl_out_reset(prl); + + pm_runtime_enable(&pdev->dev); + if (!pm_runtime_enabled(&pdev->dev)) { + ret = img_prl_out_resume(&pdev->dev); + if (ret) + goto err_pm_disable; + } + + prl->dma_data.addr = res->start + IMG_PRL_OUT_TX_FIFO; + prl->dma_data.addr_width = 4; + prl->dma_data.maxburst = 4; + + ret = devm_snd_soc_register_component(&pdev->dev, + &img_prl_out_component, + &img_prl_out_dai, 1); + if (ret) + goto err_suspend; + + ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); + if (ret) + goto err_suspend; + + return 0; + +err_suspend: + if (!pm_runtime_status_suspended(&pdev->dev)) + img_prl_out_suspend(&pdev->dev); +err_pm_disable: + pm_runtime_disable(&pdev->dev); + clk_disable_unprepare(prl->clk_sys); + + return ret; +} + +static int img_prl_out_dev_remove(struct platform_device *pdev) +{ + struct img_prl_out *prl = platform_get_drvdata(pdev); + + pm_runtime_disable(&pdev->dev); + if (!pm_runtime_status_suspended(&pdev->dev)) + img_prl_out_suspend(&pdev->dev); + + clk_disable_unprepare(prl->clk_sys); + + return 0; +} + +static const struct of_device_id img_prl_out_of_match[] = { + { .compatible = "img,parallel-out" }, + {} +}; +MODULE_DEVICE_TABLE(of, img_prl_out_of_match); + +static const struct dev_pm_ops img_prl_out_pm_ops = { + SET_RUNTIME_PM_OPS(img_prl_out_suspend, + img_prl_out_resume, NULL) +}; + +static struct platform_driver img_prl_out_driver = { + .driver = { + .name = "img-parallel-out", + .of_match_table = img_prl_out_of_match, + .pm = &img_prl_out_pm_ops + }, + .probe = img_prl_out_probe, + .remove = img_prl_out_dev_remove +}; +module_platform_driver(img_prl_out_driver); + +MODULE_AUTHOR("Damien Horsley "); +MODULE_DESCRIPTION("IMG Parallel Output Driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3