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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/codecs/tlv320aic32x4-clk.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/codecs/tlv320aic32x4-clk.c')
-rw-r--r-- | sound/soc/codecs/tlv320aic32x4-clk.c | 490 |
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); |