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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /sound/soc/mediatek/mt8195/mt8195-audsys-clk.c
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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/mediatek/mt8195/mt8195-audsys-clk.c')
-rw-r--r--sound/soc/mediatek/mt8195/mt8195-audsys-clk.c214
1 files changed, 214 insertions, 0 deletions
diff --git a/sound/soc/mediatek/mt8195/mt8195-audsys-clk.c b/sound/soc/mediatek/mt8195/mt8195-audsys-clk.c
new file mode 100644
index 000000000..e0670e0db
--- /dev/null
+++ b/sound/soc/mediatek/mt8195/mt8195-audsys-clk.c
@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * mt8195-audsys-clk.h -- Mediatek 8195 audsys clock control
+ *
+ * Copyright (c) 2021 MediaTek Inc.
+ * Author: Trevor Wu <trevor.wu@mediatek.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include "mt8195-afe-common.h"
+#include "mt8195-audsys-clk.h"
+#include "mt8195-audsys-clkid.h"
+#include "mt8195-reg.h"
+
+struct afe_gate {
+ int id;
+ const char *name;
+ const char *parent_name;
+ int reg;
+ u8 bit;
+ const struct clk_ops *ops;
+ unsigned long flags;
+ u8 cg_flags;
+};
+
+#define GATE_AFE_FLAGS(_id, _name, _parent, _reg, _bit, _flags, _cgflags) {\
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .reg = _reg, \
+ .bit = _bit, \
+ .flags = _flags, \
+ .cg_flags = _cgflags, \
+ }
+
+#define GATE_AFE(_id, _name, _parent, _reg, _bit) \
+ GATE_AFE_FLAGS(_id, _name, _parent, _reg, _bit, \
+ CLK_SET_RATE_PARENT, CLK_GATE_SET_TO_DISABLE)
+
+#define GATE_AUD0(_id, _name, _parent, _bit) \
+ GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON0, _bit)
+
+#define GATE_AUD1(_id, _name, _parent, _bit) \
+ GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON1, _bit)
+
+#define GATE_AUD3(_id, _name, _parent, _bit) \
+ GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON3, _bit)
+
+#define GATE_AUD4(_id, _name, _parent, _bit) \
+ GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON4, _bit)
+
+#define GATE_AUD5(_id, _name, _parent, _bit) \
+ GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON5, _bit)
+
+#define GATE_AUD6(_id, _name, _parent, _bit) \
+ GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON6, _bit)
+
+static const struct afe_gate aud_clks[CLK_AUD_NR_CLK] = {
+ /* AUD0 */
+ GATE_AUD0(CLK_AUD_AFE, "aud_afe", "top_a1sys_hp", 2),
+ GATE_AUD0(CLK_AUD_LRCK_CNT, "aud_lrck_cnt", "top_a1sys_hp", 4),
+ GATE_AUD0(CLK_AUD_SPDIFIN_TUNER_APLL, "aud_spdifin_tuner_apll", "top_apll4", 10),
+ GATE_AUD0(CLK_AUD_SPDIFIN_TUNER_DBG, "aud_spdifin_tuner_dbg", "top_apll4", 11),
+ GATE_AUD0(CLK_AUD_UL_TML, "aud_ul_tml", "top_a1sys_hp", 18),
+ GATE_AUD0(CLK_AUD_APLL1_TUNER, "aud_apll1_tuner", "top_apll1", 19),
+ GATE_AUD0(CLK_AUD_APLL2_TUNER, "aud_apll2_tuner", "top_apll2", 20),
+ GATE_AUD0(CLK_AUD_TOP0_SPDF, "aud_top0_spdf", "top_aud_iec_clk", 21),
+ GATE_AUD0(CLK_AUD_APLL, "aud_apll", "top_apll1", 23),
+ GATE_AUD0(CLK_AUD_APLL2, "aud_apll2", "top_apll2", 24),
+ GATE_AUD0(CLK_AUD_DAC, "aud_dac", "top_a1sys_hp", 25),
+ GATE_AUD0(CLK_AUD_DAC_PREDIS, "aud_dac_predis", "top_a1sys_hp", 26),
+ GATE_AUD0(CLK_AUD_TML, "aud_tml", "top_a1sys_hp", 27),
+ GATE_AUD0(CLK_AUD_ADC, "aud_adc", "top_a1sys_hp", 28),
+ GATE_AUD0(CLK_AUD_DAC_HIRES, "aud_dac_hires", "top_audio_h", 31),
+
+ /* AUD1 */
+ GATE_AUD1(CLK_AUD_A1SYS_HP, "aud_a1sys_hp", "top_a1sys_hp", 2),
+ GATE_AUD1(CLK_AUD_AFE_DMIC1, "aud_afe_dmic1", "top_a1sys_hp", 10),
+ GATE_AUD1(CLK_AUD_AFE_DMIC2, "aud_afe_dmic2", "top_a1sys_hp", 11),
+ GATE_AUD1(CLK_AUD_AFE_DMIC3, "aud_afe_dmic3", "top_a1sys_hp", 12),
+ GATE_AUD1(CLK_AUD_AFE_DMIC4, "aud_afe_dmic4", "top_a1sys_hp", 13),
+ GATE_AUD1(CLK_AUD_AFE_26M_DMIC_TM, "aud_afe_26m_dmic_tm", "top_a1sys_hp", 14),
+ GATE_AUD1(CLK_AUD_UL_TML_HIRES, "aud_ul_tml_hires", "top_audio_h", 16),
+ GATE_AUD1(CLK_AUD_ADC_HIRES, "aud_adc_hires", "top_audio_h", 17),
+ GATE_AUD1(CLK_AUD_ADDA6_ADC, "aud_adda6_adc", "top_a1sys_hp", 18),
+ GATE_AUD1(CLK_AUD_ADDA6_ADC_HIRES, "aud_adda6_adc_hires", "top_audio_h", 19),
+
+ /* AUD3 */
+ GATE_AUD3(CLK_AUD_LINEIN_TUNER, "aud_linein_tuner", "top_apll5", 5),
+ GATE_AUD3(CLK_AUD_EARC_TUNER, "aud_earc_tuner", "top_apll3", 7),
+
+ /* AUD4 */
+ GATE_AUD4(CLK_AUD_I2SIN, "aud_i2sin", "top_a1sys_hp", 0),
+ GATE_AUD4(CLK_AUD_TDM_IN, "aud_tdm_in", "top_a1sys_hp", 1),
+ GATE_AUD4(CLK_AUD_I2S_OUT, "aud_i2s_out", "top_a1sys_hp", 6),
+ GATE_AUD4(CLK_AUD_TDM_OUT, "aud_tdm_out", "top_a1sys_hp", 7),
+ GATE_AUD4(CLK_AUD_HDMI_OUT, "aud_hdmi_out", "top_a1sys_hp", 8),
+ GATE_AUD4(CLK_AUD_ASRC11, "aud_asrc11", "top_a1sys_hp", 16),
+ GATE_AUD4(CLK_AUD_ASRC12, "aud_asrc12", "top_a1sys_hp", 17),
+ GATE_AUD4(CLK_AUD_MULTI_IN, "aud_multi_in", "mphone_slave_b", 19),
+ GATE_AUD4(CLK_AUD_INTDIR, "aud_intdir", "top_intdir", 20),
+ GATE_AUD4(CLK_AUD_A1SYS, "aud_a1sys", "top_a1sys_hp", 21),
+ GATE_AUD4(CLK_AUD_A2SYS, "aud_a2sys", "top_a2sys_hf", 22),
+ GATE_AUD4(CLK_AUD_PCMIF, "aud_pcmif", "top_a1sys_hp", 24),
+ GATE_AUD4(CLK_AUD_A3SYS, "aud_a3sys", "top_a3sys_hf", 30),
+ GATE_AUD4(CLK_AUD_A4SYS, "aud_a4sys", "top_a4sys_hf", 31),
+
+ /* AUD5 */
+ GATE_AUD5(CLK_AUD_MEMIF_UL1, "aud_memif_ul1", "top_a1sys_hp", 0),
+ GATE_AUD5(CLK_AUD_MEMIF_UL2, "aud_memif_ul2", "top_a1sys_hp", 1),
+ GATE_AUD5(CLK_AUD_MEMIF_UL3, "aud_memif_ul3", "top_a1sys_hp", 2),
+ GATE_AUD5(CLK_AUD_MEMIF_UL4, "aud_memif_ul4", "top_a1sys_hp", 3),
+ GATE_AUD5(CLK_AUD_MEMIF_UL5, "aud_memif_ul5", "top_a1sys_hp", 4),
+ GATE_AUD5(CLK_AUD_MEMIF_UL6, "aud_memif_ul6", "top_a1sys_hp", 5),
+ GATE_AUD5(CLK_AUD_MEMIF_UL8, "aud_memif_ul8", "top_a1sys_hp", 7),
+ GATE_AUD5(CLK_AUD_MEMIF_UL9, "aud_memif_ul9", "top_a1sys_hp", 8),
+ GATE_AUD5(CLK_AUD_MEMIF_UL10, "aud_memif_ul10", "top_a1sys_hp", 9),
+ GATE_AUD5(CLK_AUD_MEMIF_DL2, "aud_memif_dl2", "top_a1sys_hp", 18),
+ GATE_AUD5(CLK_AUD_MEMIF_DL3, "aud_memif_dl3", "top_a1sys_hp", 19),
+ GATE_AUD5(CLK_AUD_MEMIF_DL6, "aud_memif_dl6", "top_a1sys_hp", 22),
+ GATE_AUD5(CLK_AUD_MEMIF_DL7, "aud_memif_dl7", "top_a1sys_hp", 23),
+ GATE_AUD5(CLK_AUD_MEMIF_DL8, "aud_memif_dl8", "top_a1sys_hp", 24),
+ GATE_AUD5(CLK_AUD_MEMIF_DL10, "aud_memif_dl10", "top_a1sys_hp", 26),
+ GATE_AUD5(CLK_AUD_MEMIF_DL11, "aud_memif_dl11", "top_a1sys_hp", 27),
+
+ /* AUD6 */
+ GATE_AUD6(CLK_AUD_GASRC0, "aud_gasrc0", "top_asm_h", 0),
+ GATE_AUD6(CLK_AUD_GASRC1, "aud_gasrc1", "top_asm_h", 1),
+ GATE_AUD6(CLK_AUD_GASRC2, "aud_gasrc2", "top_asm_h", 2),
+ GATE_AUD6(CLK_AUD_GASRC3, "aud_gasrc3", "top_asm_h", 3),
+ GATE_AUD6(CLK_AUD_GASRC4, "aud_gasrc4", "top_asm_h", 4),
+ GATE_AUD6(CLK_AUD_GASRC5, "aud_gasrc5", "top_asm_h", 5),
+ GATE_AUD6(CLK_AUD_GASRC6, "aud_gasrc6", "top_asm_h", 6),
+ GATE_AUD6(CLK_AUD_GASRC7, "aud_gasrc7", "top_asm_h", 7),
+ GATE_AUD6(CLK_AUD_GASRC8, "aud_gasrc8", "top_asm_h", 8),
+ GATE_AUD6(CLK_AUD_GASRC9, "aud_gasrc9", "top_asm_h", 9),
+ GATE_AUD6(CLK_AUD_GASRC10, "aud_gasrc10", "top_asm_h", 10),
+ GATE_AUD6(CLK_AUD_GASRC11, "aud_gasrc11", "top_asm_h", 11),
+ GATE_AUD6(CLK_AUD_GASRC12, "aud_gasrc12", "top_asm_h", 12),
+ GATE_AUD6(CLK_AUD_GASRC13, "aud_gasrc13", "top_asm_h", 13),
+ GATE_AUD6(CLK_AUD_GASRC14, "aud_gasrc14", "top_asm_h", 14),
+ GATE_AUD6(CLK_AUD_GASRC15, "aud_gasrc15", "top_asm_h", 15),
+ GATE_AUD6(CLK_AUD_GASRC16, "aud_gasrc16", "top_asm_h", 16),
+ GATE_AUD6(CLK_AUD_GASRC17, "aud_gasrc17", "top_asm_h", 17),
+ GATE_AUD6(CLK_AUD_GASRC18, "aud_gasrc18", "top_asm_h", 18),
+ GATE_AUD6(CLK_AUD_GASRC19, "aud_gasrc19", "top_asm_h", 19),
+};
+
+int mt8195_audsys_clk_register(struct mtk_base_afe *afe)
+{
+ struct mt8195_afe_private *afe_priv = afe->platform_priv;
+ struct clk *clk;
+ struct clk_lookup *cl;
+ int i;
+
+ afe_priv->lookup = devm_kcalloc(afe->dev, CLK_AUD_NR_CLK,
+ sizeof(*afe_priv->lookup),
+ GFP_KERNEL);
+
+ if (!afe_priv->lookup)
+ return -ENOMEM;
+
+ for (i = 0; i < ARRAY_SIZE(aud_clks); i++) {
+ const struct afe_gate *gate = &aud_clks[i];
+
+ clk = clk_register_gate(afe->dev, gate->name, gate->parent_name,
+ gate->flags, afe->base_addr + gate->reg,
+ gate->bit, gate->cg_flags, NULL);
+
+ if (IS_ERR(clk)) {
+ dev_err(afe->dev, "Failed to register clk %s: %ld\n",
+ gate->name, PTR_ERR(clk));
+ continue;
+ }
+
+ /* add clk_lookup for devm_clk_get(SND_SOC_DAPM_CLOCK_SUPPLY) */
+ cl = kzalloc(sizeof(*cl), GFP_KERNEL);
+ if (!cl)
+ return -ENOMEM;
+
+ cl->clk = clk;
+ cl->con_id = gate->name;
+ cl->dev_id = dev_name(afe->dev);
+ clkdev_add(cl);
+
+ afe_priv->lookup[i] = cl;
+ }
+
+ return 0;
+}
+
+void mt8195_audsys_clk_unregister(struct mtk_base_afe *afe)
+{
+ struct mt8195_afe_private *afe_priv = afe->platform_priv;
+ struct clk *clk;
+ struct clk_lookup *cl;
+ int i;
+
+ if (!afe_priv)
+ return;
+
+ for (i = 0; i < CLK_AUD_NR_CLK; i++) {
+ cl = afe_priv->lookup[i];
+ if (!cl)
+ continue;
+
+ clk = cl->clk;
+ clk_unregister_gate(clk);
+
+ clkdev_drop(cl);
+ }
+}