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/ti/omap-dmic.c | 529 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 529 insertions(+) create mode 100644 sound/soc/ti/omap-dmic.c (limited to 'sound/soc/ti/omap-dmic.c') diff --git a/sound/soc/ti/omap-dmic.c b/sound/soc/ti/omap-dmic.c new file mode 100644 index 000000000..825c70a44 --- /dev/null +++ b/sound/soc/ti/omap-dmic.c @@ -0,0 +1,529 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap-dmic.c -- OMAP ASoC DMIC DAI driver + * + * Copyright (C) 2010 - 2011 Texas Instruments + * + * Author: David Lambert + * Misael Lopez Cruz + * Liam Girdwood + * Peter Ujfalusi + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include "omap-dmic.h" +#include "sdma-pcm.h" + +struct omap_dmic { + struct device *dev; + void __iomem *io_base; + struct clk *fclk; + struct pm_qos_request pm_qos_req; + int latency; + int fclk_freq; + int out_freq; + int clk_div; + int sysclk; + int threshold; + u32 ch_enabled; + bool active; + struct mutex mutex; + + struct snd_dmaengine_dai_dma_data dma_data; +}; + +static inline void omap_dmic_write(struct omap_dmic *dmic, u16 reg, u32 val) +{ + writel_relaxed(val, dmic->io_base + reg); +} + +static inline int omap_dmic_read(struct omap_dmic *dmic, u16 reg) +{ + return readl_relaxed(dmic->io_base + reg); +} + +static inline void omap_dmic_start(struct omap_dmic *dmic) +{ + u32 ctrl = omap_dmic_read(dmic, OMAP_DMIC_CTRL_REG); + + /* Configure DMA controller */ + omap_dmic_write(dmic, OMAP_DMIC_DMAENABLE_SET_REG, + OMAP_DMIC_DMA_ENABLE); + + omap_dmic_write(dmic, OMAP_DMIC_CTRL_REG, ctrl | dmic->ch_enabled); +} + +static inline void omap_dmic_stop(struct omap_dmic *dmic) +{ + u32 ctrl = omap_dmic_read(dmic, OMAP_DMIC_CTRL_REG); + omap_dmic_write(dmic, OMAP_DMIC_CTRL_REG, + ctrl & ~OMAP_DMIC_UP_ENABLE_MASK); + + /* Disable DMA request generation */ + omap_dmic_write(dmic, OMAP_DMIC_DMAENABLE_CLR_REG, + OMAP_DMIC_DMA_ENABLE); + +} + +static inline int dmic_is_enabled(struct omap_dmic *dmic) +{ + return omap_dmic_read(dmic, OMAP_DMIC_CTRL_REG) & + OMAP_DMIC_UP_ENABLE_MASK; +} + +static int omap_dmic_dai_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct omap_dmic *dmic = snd_soc_dai_get_drvdata(dai); + int ret = 0; + + mutex_lock(&dmic->mutex); + + if (!snd_soc_dai_active(dai)) + dmic->active = 1; + else + ret = -EBUSY; + + mutex_unlock(&dmic->mutex); + + return ret; +} + +static void omap_dmic_dai_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct omap_dmic *dmic = snd_soc_dai_get_drvdata(dai); + + mutex_lock(&dmic->mutex); + + cpu_latency_qos_remove_request(&dmic->pm_qos_req); + + if (!snd_soc_dai_active(dai)) + dmic->active = 0; + + mutex_unlock(&dmic->mutex); +} + +static int omap_dmic_select_divider(struct omap_dmic *dmic, int sample_rate) +{ + int divider = -EINVAL; + + /* + * 192KHz rate is only supported with 19.2MHz/3.84MHz clock + * configuration. + */ + if (sample_rate == 192000) { + if (dmic->fclk_freq == 19200000 && dmic->out_freq == 3840000) + divider = 0x6; /* Divider: 5 (192KHz sampling rate) */ + else + dev_err(dmic->dev, + "invalid clock configuration for 192KHz\n"); + + return divider; + } + + switch (dmic->out_freq) { + case 1536000: + if (dmic->fclk_freq != 24576000) + goto div_err; + divider = 0x4; /* Divider: 16 */ + break; + case 2400000: + switch (dmic->fclk_freq) { + case 12000000: + divider = 0x5; /* Divider: 5 */ + break; + case 19200000: + divider = 0x0; /* Divider: 8 */ + break; + case 24000000: + divider = 0x2; /* Divider: 10 */ + break; + default: + goto div_err; + } + break; + case 3072000: + if (dmic->fclk_freq != 24576000) + goto div_err; + divider = 0x3; /* Divider: 8 */ + break; + case 3840000: + if (dmic->fclk_freq != 19200000) + goto div_err; + divider = 0x1; /* Divider: 5 (96KHz sampling rate) */ + break; + default: + dev_err(dmic->dev, "invalid out frequency: %dHz\n", + dmic->out_freq); + break; + } + + return divider; + +div_err: + dev_err(dmic->dev, "invalid out frequency %dHz for %dHz input\n", + dmic->out_freq, dmic->fclk_freq); + return -EINVAL; +} + +static int omap_dmic_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct omap_dmic *dmic = snd_soc_dai_get_drvdata(dai); + struct snd_dmaengine_dai_dma_data *dma_data; + int channels; + + dmic->clk_div = omap_dmic_select_divider(dmic, params_rate(params)); + if (dmic->clk_div < 0) { + dev_err(dmic->dev, "no valid divider for %dHz from %dHz\n", + dmic->out_freq, dmic->fclk_freq); + return -EINVAL; + } + + dmic->ch_enabled = 0; + channels = params_channels(params); + switch (channels) { + case 6: + dmic->ch_enabled |= OMAP_DMIC_UP3_ENABLE; + fallthrough; + case 4: + dmic->ch_enabled |= OMAP_DMIC_UP2_ENABLE; + fallthrough; + case 2: + dmic->ch_enabled |= OMAP_DMIC_UP1_ENABLE; + break; + default: + dev_err(dmic->dev, "invalid number of legacy channels\n"); + return -EINVAL; + } + + /* packet size is threshold * channels */ + dma_data = snd_soc_dai_get_dma_data(dai, substream); + dma_data->maxburst = dmic->threshold * channels; + dmic->latency = (OMAP_DMIC_THRES_MAX - dmic->threshold) * USEC_PER_SEC / + params_rate(params); + + return 0; +} + +static int omap_dmic_dai_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct omap_dmic *dmic = snd_soc_dai_get_drvdata(dai); + u32 ctrl; + + if (cpu_latency_qos_request_active(&dmic->pm_qos_req)) + cpu_latency_qos_update_request(&dmic->pm_qos_req, + dmic->latency); + + /* Configure uplink threshold */ + omap_dmic_write(dmic, OMAP_DMIC_FIFO_CTRL_REG, dmic->threshold); + + ctrl = omap_dmic_read(dmic, OMAP_DMIC_CTRL_REG); + + /* Set dmic out format */ + ctrl &= ~(OMAP_DMIC_FORMAT | OMAP_DMIC_POLAR_MASK); + ctrl |= (OMAP_DMICOUTFORMAT_LJUST | OMAP_DMIC_POLAR1 | + OMAP_DMIC_POLAR2 | OMAP_DMIC_POLAR3); + + /* Configure dmic clock divider */ + ctrl &= ~OMAP_DMIC_CLK_DIV_MASK; + ctrl |= OMAP_DMIC_CLK_DIV(dmic->clk_div); + + omap_dmic_write(dmic, OMAP_DMIC_CTRL_REG, ctrl); + + omap_dmic_write(dmic, OMAP_DMIC_CTRL_REG, + ctrl | OMAP_DMICOUTFORMAT_LJUST | OMAP_DMIC_POLAR1 | + OMAP_DMIC_POLAR2 | OMAP_DMIC_POLAR3); + + return 0; +} + +static int omap_dmic_dai_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + struct omap_dmic *dmic = snd_soc_dai_get_drvdata(dai); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + omap_dmic_start(dmic); + break; + case SNDRV_PCM_TRIGGER_STOP: + omap_dmic_stop(dmic); + break; + default: + break; + } + + return 0; +} + +static int omap_dmic_select_fclk(struct omap_dmic *dmic, int clk_id, + unsigned int freq) +{ + struct clk *parent_clk, *mux; + char *parent_clk_name; + int ret = 0; + + switch (freq) { + case 12000000: + case 19200000: + case 24000000: + case 24576000: + break; + default: + dev_err(dmic->dev, "invalid input frequency: %dHz\n", freq); + dmic->fclk_freq = 0; + return -EINVAL; + } + + if (dmic->sysclk == clk_id) { + dmic->fclk_freq = freq; + return 0; + } + + /* re-parent not allowed if a stream is ongoing */ + if (dmic->active && dmic_is_enabled(dmic)) { + dev_err(dmic->dev, "can't re-parent when DMIC active\n"); + return -EBUSY; + } + + switch (clk_id) { + case OMAP_DMIC_SYSCLK_PAD_CLKS: + parent_clk_name = "pad_clks_ck"; + break; + case OMAP_DMIC_SYSCLK_SLIMBLUS_CLKS: + parent_clk_name = "slimbus_clk"; + break; + case OMAP_DMIC_SYSCLK_SYNC_MUX_CLKS: + parent_clk_name = "dmic_sync_mux_ck"; + break; + default: + dev_err(dmic->dev, "fclk clk_id (%d) not supported\n", clk_id); + return -EINVAL; + } + + parent_clk = clk_get(dmic->dev, parent_clk_name); + if (IS_ERR(parent_clk)) { + dev_err(dmic->dev, "can't get %s\n", parent_clk_name); + return -ENODEV; + } + + mux = clk_get_parent(dmic->fclk); + if (IS_ERR(mux)) { + dev_err(dmic->dev, "can't get fck mux parent\n"); + clk_put(parent_clk); + return -ENODEV; + } + + mutex_lock(&dmic->mutex); + if (dmic->active) { + /* disable clock while reparenting */ + pm_runtime_put_sync(dmic->dev); + ret = clk_set_parent(mux, parent_clk); + pm_runtime_get_sync(dmic->dev); + } else { + ret = clk_set_parent(mux, parent_clk); + } + mutex_unlock(&dmic->mutex); + + if (ret < 0) { + dev_err(dmic->dev, "re-parent failed\n"); + goto err_busy; + } + + dmic->sysclk = clk_id; + dmic->fclk_freq = freq; + +err_busy: + clk_put(mux); + clk_put(parent_clk); + + return ret; +} + +static int omap_dmic_select_outclk(struct omap_dmic *dmic, int clk_id, + unsigned int freq) +{ + int ret = 0; + + if (clk_id != OMAP_DMIC_ABE_DMIC_CLK) { + dev_err(dmic->dev, "output clk_id (%d) not supported\n", + clk_id); + return -EINVAL; + } + + switch (freq) { + case 1536000: + case 2400000: + case 3072000: + case 3840000: + dmic->out_freq = freq; + break; + default: + dev_err(dmic->dev, "invalid out frequency: %dHz\n", freq); + dmic->out_freq = 0; + ret = -EINVAL; + } + + return ret; +} + +static int omap_dmic_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct omap_dmic *dmic = snd_soc_dai_get_drvdata(dai); + + if (dir == SND_SOC_CLOCK_IN) + return omap_dmic_select_fclk(dmic, clk_id, freq); + else if (dir == SND_SOC_CLOCK_OUT) + return omap_dmic_select_outclk(dmic, clk_id, freq); + + dev_err(dmic->dev, "invalid clock direction (%d)\n", dir); + return -EINVAL; +} + +static const struct snd_soc_dai_ops omap_dmic_dai_ops = { + .startup = omap_dmic_dai_startup, + .shutdown = omap_dmic_dai_shutdown, + .hw_params = omap_dmic_dai_hw_params, + .prepare = omap_dmic_dai_prepare, + .trigger = omap_dmic_dai_trigger, + .set_sysclk = omap_dmic_set_dai_sysclk, +}; + +static int omap_dmic_probe(struct snd_soc_dai *dai) +{ + struct omap_dmic *dmic = snd_soc_dai_get_drvdata(dai); + + pm_runtime_enable(dmic->dev); + + /* Disable lines while request is ongoing */ + pm_runtime_get_sync(dmic->dev); + omap_dmic_write(dmic, OMAP_DMIC_CTRL_REG, 0x00); + pm_runtime_put_sync(dmic->dev); + + /* Configure DMIC threshold value */ + dmic->threshold = OMAP_DMIC_THRES_MAX - 3; + + snd_soc_dai_init_dma_data(dai, NULL, &dmic->dma_data); + + return 0; +} + +static int omap_dmic_remove(struct snd_soc_dai *dai) +{ + struct omap_dmic *dmic = snd_soc_dai_get_drvdata(dai); + + pm_runtime_disable(dmic->dev); + + return 0; +} + +static struct snd_soc_dai_driver omap_dmic_dai = { + .name = "omap-dmic", + .probe = omap_dmic_probe, + .remove = omap_dmic_remove, + .capture = { + .channels_min = 2, + .channels_max = 6, + .rates = SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .sig_bits = 24, + }, + .ops = &omap_dmic_dai_ops, +}; + +static const struct snd_soc_component_driver omap_dmic_component = { + .name = "omap-dmic", + .legacy_dai_naming = 1, +}; + +static int asoc_dmic_probe(struct platform_device *pdev) +{ + struct omap_dmic *dmic; + struct resource *res; + int ret; + + dmic = devm_kzalloc(&pdev->dev, sizeof(struct omap_dmic), GFP_KERNEL); + if (!dmic) + return -ENOMEM; + + platform_set_drvdata(pdev, dmic); + dmic->dev = &pdev->dev; + dmic->sysclk = OMAP_DMIC_SYSCLK_SYNC_MUX_CLKS; + + mutex_init(&dmic->mutex); + + dmic->fclk = devm_clk_get(dmic->dev, "fck"); + if (IS_ERR(dmic->fclk)) { + dev_err(dmic->dev, "can't get fck\n"); + return -ENODEV; + } + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dma"); + if (!res) { + dev_err(dmic->dev, "invalid dma memory resource\n"); + return -ENODEV; + } + dmic->dma_data.addr = res->start + OMAP_DMIC_DATA_REG; + + dmic->dma_data.filter_data = "up_link"; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu"); + dmic->io_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(dmic->io_base)) + return PTR_ERR(dmic->io_base); + + + ret = devm_snd_soc_register_component(&pdev->dev, + &omap_dmic_component, + &omap_dmic_dai, 1); + if (ret) + return ret; + + ret = sdma_pcm_platform_register(&pdev->dev, NULL, "up_link"); + if (ret) + return ret; + + return 0; +} + +static const struct of_device_id omap_dmic_of_match[] = { + { .compatible = "ti,omap4-dmic", }, + { } +}; +MODULE_DEVICE_TABLE(of, omap_dmic_of_match); + +static struct platform_driver asoc_dmic_driver = { + .driver = { + .name = "omap-dmic", + .of_match_table = omap_dmic_of_match, + }, + .probe = asoc_dmic_probe, +}; + +module_platform_driver(asoc_dmic_driver); + +MODULE_ALIAS("platform:omap-dmic"); +MODULE_AUTHOR("Peter Ujfalusi "); +MODULE_DESCRIPTION("OMAP DMIC ASoC Interface"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3