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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/samsung/smdk_spdif.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/samsung/smdk_spdif.c')
-rw-r--r-- | sound/soc/samsung/smdk_spdif.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/sound/soc/samsung/smdk_spdif.c b/sound/soc/samsung/smdk_spdif.c new file mode 100644 index 000000000..6f3eeb7bc --- /dev/null +++ b/sound/soc/samsung/smdk_spdif.c @@ -0,0 +1,219 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// smdk_spdif.c - S/PDIF audio for SMDK +// +// Copyright (C) 2010 Samsung Electronics Co., Ltd. + +#include <linux/clk.h> +#include <linux/module.h> + +#include <sound/soc.h> + +#include "spdif.h" + +/* Audio clock settings are belonged to board specific part. Every + * board can set audio source clock setting which is matched with H/W + * like this function-'set_audio_clock_heirachy'. + */ +static int set_audio_clock_heirachy(struct platform_device *pdev) +{ + struct clk *fout_epll, *mout_epll, *sclk_audio0, *sclk_spdif; + int ret = 0; + + fout_epll = clk_get(NULL, "fout_epll"); + if (IS_ERR(fout_epll)) { + printk(KERN_WARNING "%s: Cannot find fout_epll.\n", + __func__); + return -EINVAL; + } + + mout_epll = clk_get(NULL, "mout_epll"); + if (IS_ERR(mout_epll)) { + printk(KERN_WARNING "%s: Cannot find mout_epll.\n", + __func__); + ret = -EINVAL; + goto out1; + } + + sclk_audio0 = clk_get(&pdev->dev, "sclk_audio"); + if (IS_ERR(sclk_audio0)) { + printk(KERN_WARNING "%s: Cannot find sclk_audio.\n", + __func__); + ret = -EINVAL; + goto out2; + } + + sclk_spdif = clk_get(NULL, "sclk_spdif"); + if (IS_ERR(sclk_spdif)) { + printk(KERN_WARNING "%s: Cannot find sclk_spdif.\n", + __func__); + ret = -EINVAL; + goto out3; + } + + /* Set audio clock hierarchy for S/PDIF */ + clk_set_parent(mout_epll, fout_epll); + clk_set_parent(sclk_audio0, mout_epll); + clk_set_parent(sclk_spdif, sclk_audio0); + + clk_put(sclk_spdif); +out3: + clk_put(sclk_audio0); +out2: + clk_put(mout_epll); +out1: + clk_put(fout_epll); + + return ret; +} + +/* We should haved to set clock directly on this part because of clock + * scheme of Samsudng SoCs did not support to set rates from abstrct + * clock of it's hierarchy. + */ +static int set_audio_clock_rate(unsigned long epll_rate, + unsigned long audio_rate) +{ + struct clk *fout_epll, *sclk_spdif; + + fout_epll = clk_get(NULL, "fout_epll"); + if (IS_ERR(fout_epll)) { + printk(KERN_ERR "%s: failed to get fout_epll\n", __func__); + return -ENOENT; + } + + clk_set_rate(fout_epll, epll_rate); + clk_put(fout_epll); + + sclk_spdif = clk_get(NULL, "sclk_spdif"); + if (IS_ERR(sclk_spdif)) { + printk(KERN_ERR "%s: failed to get sclk_spdif\n", __func__); + return -ENOENT; + } + + clk_set_rate(sclk_spdif, audio_rate); + clk_put(sclk_spdif); + + return 0; +} + +static int smdk_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + unsigned long pll_out, rclk_rate; + int ret, ratio; + + switch (params_rate(params)) { + case 44100: + pll_out = 45158400; + break; + case 32000: + case 48000: + case 96000: + pll_out = 49152000; + break; + default: + return -EINVAL; + } + + /* Setting ratio to 512fs helps to use S/PDIF with HDMI without + * modify S/PDIF ASoC machine driver. + */ + ratio = 512; + rclk_rate = params_rate(params) * ratio; + + /* Set audio source clock rates */ + ret = set_audio_clock_rate(pll_out, rclk_rate); + if (ret < 0) + return ret; + + /* Set S/PDIF uses internal source clock */ + ret = snd_soc_dai_set_sysclk(cpu_dai, SND_SOC_SPDIF_INT_MCLK, + rclk_rate, SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + return ret; +} + +static const struct snd_soc_ops smdk_spdif_ops = { + .hw_params = smdk_hw_params, +}; + +SND_SOC_DAILINK_DEFS(spdif, + DAILINK_COMP_ARRAY(COMP_CPU("samsung-spdif")), + DAILINK_COMP_ARRAY(COMP_CODEC("spdif-dit", "dit-hifi")), + DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-spdif"))); + +static struct snd_soc_dai_link smdk_dai = { + .name = "S/PDIF", + .stream_name = "S/PDIF PCM Playback", + .ops = &smdk_spdif_ops, + SND_SOC_DAILINK_REG(spdif), +}; + +static struct snd_soc_card smdk = { + .name = "SMDK-S/PDIF", + .owner = THIS_MODULE, + .dai_link = &smdk_dai, + .num_links = 1, +}; + +static struct platform_device *smdk_snd_spdif_dit_device; +static struct platform_device *smdk_snd_spdif_device; + +static int __init smdk_init(void) +{ + int ret; + + smdk_snd_spdif_dit_device = platform_device_alloc("spdif-dit", -1); + if (!smdk_snd_spdif_dit_device) + return -ENOMEM; + + ret = platform_device_add(smdk_snd_spdif_dit_device); + if (ret) + goto err1; + + smdk_snd_spdif_device = platform_device_alloc("soc-audio", -1); + if (!smdk_snd_spdif_device) { + ret = -ENOMEM; + goto err2; + } + + platform_set_drvdata(smdk_snd_spdif_device, &smdk); + + ret = platform_device_add(smdk_snd_spdif_device); + if (ret) + goto err3; + + /* Set audio clock hierarchy manually */ + ret = set_audio_clock_heirachy(smdk_snd_spdif_device); + if (ret) + goto err4; + + return 0; +err4: + platform_device_del(smdk_snd_spdif_device); +err3: + platform_device_put(smdk_snd_spdif_device); +err2: + platform_device_del(smdk_snd_spdif_dit_device); +err1: + platform_device_put(smdk_snd_spdif_dit_device); + return ret; +} + +static void __exit smdk_exit(void) +{ + platform_device_unregister(smdk_snd_spdif_device); + platform_device_unregister(smdk_snd_spdif_dit_device); +} + +module_init(smdk_init); +module_exit(smdk_exit); + +MODULE_AUTHOR("Seungwhan Youn, <sw.youn@samsung.com>"); +MODULE_DESCRIPTION("ALSA SoC SMDK+S/PDIF"); +MODULE_LICENSE("GPL"); |