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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/codecs/tlv320aic32x4-clk.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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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/codecs/tlv320aic32x4-clk.c')
-rw-r--r--sound/soc/codecs/tlv320aic32x4-clk.c490
1 files changed, 490 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320aic32x4-clk.c b/sound/soc/codecs/tlv320aic32x4-clk.c
new file mode 100644
index 000000000..2f78e6820
--- /dev/null
+++ b/sound/soc/codecs/tlv320aic32x4-clk.c
@@ -0,0 +1,490 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Clock Tree for the Texas Instruments TLV320AIC32x4
+ *
+ * Copyright 2019 Annaliese McDermond
+ *
+ * Author: Annaliese McDermond <nh6z@nh6z.net>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/regmap.h>
+#include <linux/device.h>
+
+#include "tlv320aic32x4.h"
+
+#define to_clk_aic32x4(_hw) container_of(_hw, struct clk_aic32x4, hw)
+struct clk_aic32x4 {
+ struct clk_hw hw;
+ struct device *dev;
+ struct regmap *regmap;
+ unsigned int reg;
+};
+
+/*
+ * struct clk_aic32x4_pll_muldiv - Multiplier/divider settings
+ * @p: Divider
+ * @r: first multiplier
+ * @j: integer part of second multiplier
+ * @d: decimal part of second multiplier
+ */
+struct clk_aic32x4_pll_muldiv {
+ u8 p;
+ u16 r;
+ u8 j;
+ u16 d;
+};
+
+struct aic32x4_clkdesc {
+ const char *name;
+ const char * const *parent_names;
+ unsigned int num_parents;
+ const struct clk_ops *ops;
+ unsigned int reg;
+};
+
+static int clk_aic32x4_pll_prepare(struct clk_hw *hw)
+{
+ struct clk_aic32x4 *pll = to_clk_aic32x4(hw);
+
+ return regmap_update_bits(pll->regmap, AIC32X4_PLLPR,
+ AIC32X4_PLLEN, AIC32X4_PLLEN);
+}
+
+static void clk_aic32x4_pll_unprepare(struct clk_hw *hw)
+{
+ struct clk_aic32x4 *pll = to_clk_aic32x4(hw);
+
+ regmap_update_bits(pll->regmap, AIC32X4_PLLPR,
+ AIC32X4_PLLEN, 0);
+}
+
+static int clk_aic32x4_pll_is_prepared(struct clk_hw *hw)
+{
+ struct clk_aic32x4 *pll = to_clk_aic32x4(hw);
+
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(pll->regmap, AIC32X4_PLLPR, &val);
+ if (ret < 0)
+ return ret;
+
+ return !!(val & AIC32X4_PLLEN);
+}
+
+static int clk_aic32x4_pll_get_muldiv(struct clk_aic32x4 *pll,
+ struct clk_aic32x4_pll_muldiv *settings)
+{
+ /* Change to use regmap_bulk_read? */
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(pll->regmap, AIC32X4_PLLPR, &val);
+ if (ret < 0)
+ return ret;
+ settings->r = val & AIC32X4_PLL_R_MASK;
+ settings->p = (val & AIC32X4_PLL_P_MASK) >> AIC32X4_PLL_P_SHIFT;
+
+ ret = regmap_read(pll->regmap, AIC32X4_PLLJ, &val);
+ if (ret < 0)
+ return ret;
+ settings->j = val;
+
+ ret = regmap_read(pll->regmap, AIC32X4_PLLDMSB, &val);
+ if (ret < 0)
+ return ret;
+ settings->d = val << 8;
+
+ ret = regmap_read(pll->regmap, AIC32X4_PLLDLSB, &val);
+ if (ret < 0)
+ return ret;
+ settings->d |= val;
+
+ return 0;
+}
+
+static int clk_aic32x4_pll_set_muldiv(struct clk_aic32x4 *pll,
+ struct clk_aic32x4_pll_muldiv *settings)
+{
+ int ret;
+ /* Change to use regmap_bulk_write for some if not all? */
+
+ ret = regmap_update_bits(pll->regmap, AIC32X4_PLLPR,
+ AIC32X4_PLL_R_MASK, settings->r);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_update_bits(pll->regmap, AIC32X4_PLLPR,
+ AIC32X4_PLL_P_MASK,
+ settings->p << AIC32X4_PLL_P_SHIFT);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_write(pll->regmap, AIC32X4_PLLJ, settings->j);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_write(pll->regmap, AIC32X4_PLLDMSB, (settings->d >> 8));
+ if (ret < 0)
+ return ret;
+ ret = regmap_write(pll->regmap, AIC32X4_PLLDLSB, (settings->d & 0xff));
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static unsigned long clk_aic32x4_pll_calc_rate(
+ struct clk_aic32x4_pll_muldiv *settings,
+ unsigned long parent_rate)
+{
+ u64 rate;
+ /*
+ * We scale j by 10000 to account for the decimal part of P and divide
+ * it back out later.
+ */
+ rate = (u64) parent_rate * settings->r *
+ ((settings->j * 10000) + settings->d);
+
+ return (unsigned long) DIV_ROUND_UP_ULL(rate, settings->p * 10000);
+}
+
+static int clk_aic32x4_pll_calc_muldiv(struct clk_aic32x4_pll_muldiv *settings,
+ unsigned long rate, unsigned long parent_rate)
+{
+ u64 multiplier;
+
+ settings->p = parent_rate / AIC32X4_MAX_PLL_CLKIN + 1;
+ if (settings->p > 8)
+ return -1;
+
+ /*
+ * We scale this figure by 10000 so that we can get the decimal part
+ * of the multiplier. This is because we can't do floating point
+ * math in the kernel.
+ */
+ multiplier = (u64) rate * settings->p * 10000;
+ do_div(multiplier, parent_rate);
+
+ /*
+ * J can't be over 64, so R can scale this.
+ * R can't be greater than 4.
+ */
+ settings->r = ((u32) multiplier / 640000) + 1;
+ if (settings->r > 4)
+ return -1;
+ do_div(multiplier, settings->r);
+
+ /*
+ * J can't be < 1.
+ */
+ if (multiplier < 10000)
+ return -1;
+
+ /* Figure out the integer part, J, and the fractional part, D. */
+ settings->j = (u32) multiplier / 10000;
+ settings->d = (u32) multiplier % 10000;
+
+ return 0;
+}
+
+static unsigned long clk_aic32x4_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct clk_aic32x4 *pll = to_clk_aic32x4(hw);
+ struct clk_aic32x4_pll_muldiv settings;
+ int ret;
+
+ ret = clk_aic32x4_pll_get_muldiv(pll, &settings);
+ if (ret < 0)
+ return 0;
+
+ return clk_aic32x4_pll_calc_rate(&settings, parent_rate);
+}
+
+static long clk_aic32x4_pll_round_rate(struct clk_hw *hw,
+ unsigned long rate,
+ unsigned long *parent_rate)
+{
+ struct clk_aic32x4_pll_muldiv settings;
+ int ret;
+
+ ret = clk_aic32x4_pll_calc_muldiv(&settings, rate, *parent_rate);
+ if (ret < 0)
+ return 0;
+
+ return clk_aic32x4_pll_calc_rate(&settings, *parent_rate);
+}
+
+static int clk_aic32x4_pll_set_rate(struct clk_hw *hw,
+ unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct clk_aic32x4 *pll = to_clk_aic32x4(hw);
+ struct clk_aic32x4_pll_muldiv settings;
+ int ret;
+
+ ret = clk_aic32x4_pll_calc_muldiv(&settings, rate, parent_rate);
+ if (ret < 0)
+ return -EINVAL;
+
+ ret = clk_aic32x4_pll_set_muldiv(pll, &settings);
+ if (ret)
+ return ret;
+
+ /* 10ms is the delay to wait before the clocks are stable */
+ msleep(10);
+
+ return 0;
+}
+
+static int clk_aic32x4_pll_set_parent(struct clk_hw *hw, u8 index)
+{
+ struct clk_aic32x4 *pll = to_clk_aic32x4(hw);
+
+ return regmap_update_bits(pll->regmap,
+ AIC32X4_CLKMUX,
+ AIC32X4_PLL_CLKIN_MASK,
+ index << AIC32X4_PLL_CLKIN_SHIFT);
+}
+
+static u8 clk_aic32x4_pll_get_parent(struct clk_hw *hw)
+{
+ struct clk_aic32x4 *pll = to_clk_aic32x4(hw);
+ unsigned int val;
+
+ regmap_read(pll->regmap, AIC32X4_PLLPR, &val);
+
+ return (val & AIC32X4_PLL_CLKIN_MASK) >> AIC32X4_PLL_CLKIN_SHIFT;
+}
+
+
+static const struct clk_ops aic32x4_pll_ops = {
+ .prepare = clk_aic32x4_pll_prepare,
+ .unprepare = clk_aic32x4_pll_unprepare,
+ .is_prepared = clk_aic32x4_pll_is_prepared,
+ .recalc_rate = clk_aic32x4_pll_recalc_rate,
+ .round_rate = clk_aic32x4_pll_round_rate,
+ .set_rate = clk_aic32x4_pll_set_rate,
+ .set_parent = clk_aic32x4_pll_set_parent,
+ .get_parent = clk_aic32x4_pll_get_parent,
+};
+
+static int clk_aic32x4_codec_clkin_set_parent(struct clk_hw *hw, u8 index)
+{
+ struct clk_aic32x4 *mux = to_clk_aic32x4(hw);
+
+ return regmap_update_bits(mux->regmap,
+ AIC32X4_CLKMUX,
+ AIC32X4_CODEC_CLKIN_MASK, index << AIC32X4_CODEC_CLKIN_SHIFT);
+}
+
+static u8 clk_aic32x4_codec_clkin_get_parent(struct clk_hw *hw)
+{
+ struct clk_aic32x4 *mux = to_clk_aic32x4(hw);
+ unsigned int val;
+
+ regmap_read(mux->regmap, AIC32X4_CLKMUX, &val);
+
+ return (val & AIC32X4_CODEC_CLKIN_MASK) >> AIC32X4_CODEC_CLKIN_SHIFT;
+}
+
+static const struct clk_ops aic32x4_codec_clkin_ops = {
+ .set_parent = clk_aic32x4_codec_clkin_set_parent,
+ .get_parent = clk_aic32x4_codec_clkin_get_parent,
+};
+
+static int clk_aic32x4_div_prepare(struct clk_hw *hw)
+{
+ struct clk_aic32x4 *div = to_clk_aic32x4(hw);
+
+ return regmap_update_bits(div->regmap, div->reg,
+ AIC32X4_DIVEN, AIC32X4_DIVEN);
+}
+
+static void clk_aic32x4_div_unprepare(struct clk_hw *hw)
+{
+ struct clk_aic32x4 *div = to_clk_aic32x4(hw);
+
+ regmap_update_bits(div->regmap, div->reg,
+ AIC32X4_DIVEN, 0);
+}
+
+static int clk_aic32x4_div_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct clk_aic32x4 *div = to_clk_aic32x4(hw);
+ u8 divisor;
+
+ divisor = DIV_ROUND_UP(parent_rate, rate);
+ if (divisor > 128)
+ return -EINVAL;
+
+ return regmap_update_bits(div->regmap, div->reg,
+ AIC32X4_DIV_MASK, divisor);
+}
+
+static long clk_aic32x4_div_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *parent_rate)
+{
+ unsigned long divisor;
+
+ divisor = DIV_ROUND_UP(*parent_rate, rate);
+ if (divisor > 128)
+ return -EINVAL;
+
+ return DIV_ROUND_UP(*parent_rate, divisor);
+}
+
+static unsigned long clk_aic32x4_div_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct clk_aic32x4 *div = to_clk_aic32x4(hw);
+
+ unsigned int val;
+
+ regmap_read(div->regmap, div->reg, &val);
+
+ return DIV_ROUND_UP(parent_rate, val & AIC32X4_DIV_MASK);
+}
+
+static const struct clk_ops aic32x4_div_ops = {
+ .prepare = clk_aic32x4_div_prepare,
+ .unprepare = clk_aic32x4_div_unprepare,
+ .set_rate = clk_aic32x4_div_set_rate,
+ .round_rate = clk_aic32x4_div_round_rate,
+ .recalc_rate = clk_aic32x4_div_recalc_rate,
+};
+
+static int clk_aic32x4_bdiv_set_parent(struct clk_hw *hw, u8 index)
+{
+ struct clk_aic32x4 *mux = to_clk_aic32x4(hw);
+
+ return regmap_update_bits(mux->regmap, AIC32X4_IFACE3,
+ AIC32X4_BDIVCLK_MASK, index);
+}
+
+static u8 clk_aic32x4_bdiv_get_parent(struct clk_hw *hw)
+{
+ struct clk_aic32x4 *mux = to_clk_aic32x4(hw);
+ unsigned int val;
+
+ regmap_read(mux->regmap, AIC32X4_IFACE3, &val);
+
+ return val & AIC32X4_BDIVCLK_MASK;
+}
+
+static const struct clk_ops aic32x4_bdiv_ops = {
+ .prepare = clk_aic32x4_div_prepare,
+ .unprepare = clk_aic32x4_div_unprepare,
+ .set_parent = clk_aic32x4_bdiv_set_parent,
+ .get_parent = clk_aic32x4_bdiv_get_parent,
+ .set_rate = clk_aic32x4_div_set_rate,
+ .round_rate = clk_aic32x4_div_round_rate,
+ .recalc_rate = clk_aic32x4_div_recalc_rate,
+};
+
+static struct aic32x4_clkdesc aic32x4_clkdesc_array[] = {
+ {
+ .name = "pll",
+ .parent_names =
+ (const char* []) { "mclk", "bclk", "gpio", "din" },
+ .num_parents = 4,
+ .ops = &aic32x4_pll_ops,
+ .reg = 0,
+ },
+ {
+ .name = "codec_clkin",
+ .parent_names =
+ (const char *[]) { "mclk", "bclk", "gpio", "pll" },
+ .num_parents = 4,
+ .ops = &aic32x4_codec_clkin_ops,
+ .reg = 0,
+ },
+ {
+ .name = "ndac",
+ .parent_names = (const char * []) { "codec_clkin" },
+ .num_parents = 1,
+ .ops = &aic32x4_div_ops,
+ .reg = AIC32X4_NDAC,
+ },
+ {
+ .name = "mdac",
+ .parent_names = (const char * []) { "ndac" },
+ .num_parents = 1,
+ .ops = &aic32x4_div_ops,
+ .reg = AIC32X4_MDAC,
+ },
+ {
+ .name = "nadc",
+ .parent_names = (const char * []) { "codec_clkin" },
+ .num_parents = 1,
+ .ops = &aic32x4_div_ops,
+ .reg = AIC32X4_NADC,
+ },
+ {
+ .name = "madc",
+ .parent_names = (const char * []) { "nadc" },
+ .num_parents = 1,
+ .ops = &aic32x4_div_ops,
+ .reg = AIC32X4_MADC,
+ },
+ {
+ .name = "bdiv",
+ .parent_names =
+ (const char *[]) { "ndac", "mdac", "nadc", "madc" },
+ .num_parents = 4,
+ .ops = &aic32x4_bdiv_ops,
+ .reg = AIC32X4_BCLKN,
+ },
+};
+
+static struct clk *aic32x4_register_clk(struct device *dev,
+ struct aic32x4_clkdesc *desc)
+{
+ struct clk_init_data init;
+ struct clk_aic32x4 *priv;
+ const char *devname = dev_name(dev);
+
+ init.ops = desc->ops;
+ init.name = desc->name;
+ init.parent_names = desc->parent_names;
+ init.num_parents = desc->num_parents;
+ init.flags = 0;
+
+ priv = devm_kzalloc(dev, sizeof(struct clk_aic32x4), GFP_KERNEL);
+ if (priv == NULL)
+ return (struct clk *) -ENOMEM;
+
+ priv->dev = dev;
+ priv->hw.init = &init;
+ priv->regmap = dev_get_regmap(dev, NULL);
+ priv->reg = desc->reg;
+
+ clk_hw_register_clkdev(&priv->hw, desc->name, devname);
+ return devm_clk_register(dev, &priv->hw);
+}
+
+int aic32x4_register_clocks(struct device *dev, const char *mclk_name)
+{
+ int i;
+
+ /*
+ * These lines are here to preserve the current functionality of
+ * the driver with regard to the DT. These should eventually be set
+ * by DT nodes so that the connections can be set up in configuration
+ * rather than code.
+ */
+ aic32x4_clkdesc_array[0].parent_names =
+ (const char* []) { mclk_name, "bclk", "gpio", "din" };
+ aic32x4_clkdesc_array[1].parent_names =
+ (const char *[]) { mclk_name, "bclk", "gpio", "pll" };
+
+ for (i = 0; i < ARRAY_SIZE(aic32x4_clkdesc_array); ++i)
+ aic32x4_register_clk(dev, &aic32x4_clkdesc_array[i]);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(aic32x4_register_clocks);