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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 /drivers/clk/imx/clk-pllv3.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 'drivers/clk/imx/clk-pllv3.c')
-rw-r--r-- | drivers/clk/imx/clk-pllv3.c | 488 |
1 files changed, 488 insertions, 0 deletions
diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c new file mode 100644 index 000000000..eea32f87c --- /dev/null +++ b/drivers/clk/imx/clk-pllv3.c @@ -0,0 +1,488 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * Copyright 2012 Linaro Ltd. + */ + +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/iopoll.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/err.h> +#include "clk.h" + +#define PLL_NUM_OFFSET 0x10 +#define PLL_DENOM_OFFSET 0x20 +#define PLL_IMX7_NUM_OFFSET 0x20 +#define PLL_IMX7_DENOM_OFFSET 0x30 + +#define PLL_VF610_NUM_OFFSET 0x20 +#define PLL_VF610_DENOM_OFFSET 0x30 + +#define BM_PLL_POWER (0x1 << 12) +#define BM_PLL_LOCK (0x1 << 31) +#define IMX7_ENET_PLL_POWER (0x1 << 5) +#define IMX7_DDR_PLL_POWER (0x1 << 20) + +#define PLL_LOCK_TIMEOUT 10000 + +/** + * struct clk_pllv3 - IMX PLL clock version 3 + * @hw: clock source + * @base: base address of PLL registers + * @power_bit: pll power bit mask + * @powerup_set: set power_bit to power up the PLL + * @div_mask: mask of divider bits + * @div_shift: shift of divider bits + * @ref_clock: reference clock rate + * @num_offset: num register offset + * @denom_offset: denom register offset + * + * IMX PLL clock version 3, found on i.MX6 series. Divider for pllv3 + * is actually a multiplier, and always sits at bit 0. + */ +struct clk_pllv3 { + struct clk_hw hw; + void __iomem *base; + u32 power_bit; + bool powerup_set; + u32 div_mask; + u32 div_shift; + unsigned long ref_clock; + u32 num_offset; + u32 denom_offset; +}; + +#define to_clk_pllv3(_hw) container_of(_hw, struct clk_pllv3, hw) + +static int clk_pllv3_wait_lock(struct clk_pllv3 *pll) +{ + u32 val = readl_relaxed(pll->base) & pll->power_bit; + + /* No need to wait for lock when pll is not powered up */ + if ((pll->powerup_set && !val) || (!pll->powerup_set && val)) + return 0; + + return readl_relaxed_poll_timeout(pll->base, val, val & BM_PLL_LOCK, + 500, PLL_LOCK_TIMEOUT); +} + +static int clk_pllv3_prepare(struct clk_hw *hw) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 val; + + val = readl_relaxed(pll->base); + if (pll->powerup_set) + val |= pll->power_bit; + else + val &= ~pll->power_bit; + writel_relaxed(val, pll->base); + + return clk_pllv3_wait_lock(pll); +} + +static void clk_pllv3_unprepare(struct clk_hw *hw) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 val; + + val = readl_relaxed(pll->base); + if (pll->powerup_set) + val &= ~pll->power_bit; + else + val |= pll->power_bit; + writel_relaxed(val, pll->base); +} + +static int clk_pllv3_is_prepared(struct clk_hw *hw) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + + if (readl_relaxed(pll->base) & BM_PLL_LOCK) + return 1; + + return 0; +} + +static unsigned long clk_pllv3_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 div = (readl_relaxed(pll->base) >> pll->div_shift) & pll->div_mask; + + return (div == 1) ? parent_rate * 22 : parent_rate * 20; +} + +static long clk_pllv3_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + unsigned long parent_rate = *prate; + + return (rate >= parent_rate * 22) ? parent_rate * 22 : + parent_rate * 20; +} + +static int clk_pllv3_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 val, div; + + if (rate == parent_rate * 22) + div = 1; + else if (rate == parent_rate * 20) + div = 0; + else + return -EINVAL; + + val = readl_relaxed(pll->base); + val &= ~(pll->div_mask << pll->div_shift); + val |= (div << pll->div_shift); + writel_relaxed(val, pll->base); + + return clk_pllv3_wait_lock(pll); +} + +static const struct clk_ops clk_pllv3_ops = { + .prepare = clk_pllv3_prepare, + .unprepare = clk_pllv3_unprepare, + .is_prepared = clk_pllv3_is_prepared, + .recalc_rate = clk_pllv3_recalc_rate, + .round_rate = clk_pllv3_round_rate, + .set_rate = clk_pllv3_set_rate, +}; + +static unsigned long clk_pllv3_sys_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 div = readl_relaxed(pll->base) & pll->div_mask; + + return parent_rate * div / 2; +} + +static long clk_pllv3_sys_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + unsigned long parent_rate = *prate; + unsigned long min_rate = parent_rate * 54 / 2; + unsigned long max_rate = parent_rate * 108 / 2; + u32 div; + + if (rate > max_rate) + rate = max_rate; + else if (rate < min_rate) + rate = min_rate; + div = rate * 2 / parent_rate; + + return parent_rate * div / 2; +} + +static int clk_pllv3_sys_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + unsigned long min_rate = parent_rate * 54 / 2; + unsigned long max_rate = parent_rate * 108 / 2; + u32 val, div; + + if (rate < min_rate || rate > max_rate) + return -EINVAL; + + div = rate * 2 / parent_rate; + val = readl_relaxed(pll->base); + val &= ~pll->div_mask; + val |= div; + writel_relaxed(val, pll->base); + + return clk_pllv3_wait_lock(pll); +} + +static const struct clk_ops clk_pllv3_sys_ops = { + .prepare = clk_pllv3_prepare, + .unprepare = clk_pllv3_unprepare, + .is_prepared = clk_pllv3_is_prepared, + .recalc_rate = clk_pllv3_sys_recalc_rate, + .round_rate = clk_pllv3_sys_round_rate, + .set_rate = clk_pllv3_sys_set_rate, +}; + +static unsigned long clk_pllv3_av_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 mfn = readl_relaxed(pll->base + pll->num_offset); + u32 mfd = readl_relaxed(pll->base + pll->denom_offset); + u32 div = readl_relaxed(pll->base) & pll->div_mask; + u64 temp64 = (u64)parent_rate; + + temp64 *= mfn; + do_div(temp64, mfd); + + return parent_rate * div + (unsigned long)temp64; +} + +static long clk_pllv3_av_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + unsigned long parent_rate = *prate; + unsigned long min_rate = parent_rate * 27; + unsigned long max_rate = parent_rate * 54; + u32 div; + u32 mfn, mfd = 1000000; + u32 max_mfd = 0x3FFFFFFF; + u64 temp64; + + if (rate > max_rate) + rate = max_rate; + else if (rate < min_rate) + rate = min_rate; + + if (parent_rate <= max_mfd) + mfd = parent_rate; + + div = rate / parent_rate; + temp64 = (u64) (rate - div * parent_rate); + temp64 *= mfd; + temp64 = div64_ul(temp64, parent_rate); + mfn = temp64; + + temp64 = (u64)parent_rate; + temp64 *= mfn; + do_div(temp64, mfd); + + return parent_rate * div + (unsigned long)temp64; +} + +static int clk_pllv3_av_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + unsigned long min_rate = parent_rate * 27; + unsigned long max_rate = parent_rate * 54; + u32 val, div; + u32 mfn, mfd = 1000000; + u32 max_mfd = 0x3FFFFFFF; + u64 temp64; + + if (rate < min_rate || rate > max_rate) + return -EINVAL; + + if (parent_rate <= max_mfd) + mfd = parent_rate; + + div = rate / parent_rate; + temp64 = (u64) (rate - div * parent_rate); + temp64 *= mfd; + temp64 = div64_ul(temp64, parent_rate); + mfn = temp64; + + val = readl_relaxed(pll->base); + val &= ~pll->div_mask; + val |= div; + writel_relaxed(val, pll->base); + writel_relaxed(mfn, pll->base + pll->num_offset); + writel_relaxed(mfd, pll->base + pll->denom_offset); + + return clk_pllv3_wait_lock(pll); +} + +static const struct clk_ops clk_pllv3_av_ops = { + .prepare = clk_pllv3_prepare, + .unprepare = clk_pllv3_unprepare, + .is_prepared = clk_pllv3_is_prepared, + .recalc_rate = clk_pllv3_av_recalc_rate, + .round_rate = clk_pllv3_av_round_rate, + .set_rate = clk_pllv3_av_set_rate, +}; + +struct clk_pllv3_vf610_mf { + u32 mfi; /* integer part, can be 20 or 22 */ + u32 mfn; /* numerator, 30-bit value */ + u32 mfd; /* denominator, 30-bit value, must be less than mfn */ +}; + +static unsigned long clk_pllv3_vf610_mf_to_rate(unsigned long parent_rate, + struct clk_pllv3_vf610_mf mf) +{ + u64 temp64; + + temp64 = parent_rate; + temp64 *= mf.mfn; + do_div(temp64, mf.mfd); + + return (parent_rate * mf.mfi) + temp64; +} + +static struct clk_pllv3_vf610_mf clk_pllv3_vf610_rate_to_mf( + unsigned long parent_rate, unsigned long rate) +{ + struct clk_pllv3_vf610_mf mf; + u64 temp64; + + mf.mfi = (rate >= 22 * parent_rate) ? 22 : 20; + mf.mfd = 0x3fffffff; /* use max supported value for best accuracy */ + + if (rate <= parent_rate * mf.mfi) + mf.mfn = 0; + else if (rate >= parent_rate * (mf.mfi + 1)) + mf.mfn = mf.mfd - 1; + else { + /* rate = parent_rate * (mfi + mfn/mfd) */ + temp64 = rate - parent_rate * mf.mfi; + temp64 *= mf.mfd; + temp64 = div64_ul(temp64, parent_rate); + mf.mfn = temp64; + } + + return mf; +} + +static unsigned long clk_pllv3_vf610_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + struct clk_pllv3_vf610_mf mf; + + mf.mfn = readl_relaxed(pll->base + pll->num_offset); + mf.mfd = readl_relaxed(pll->base + pll->denom_offset); + mf.mfi = (readl_relaxed(pll->base) & pll->div_mask) ? 22 : 20; + + return clk_pllv3_vf610_mf_to_rate(parent_rate, mf); +} + +static long clk_pllv3_vf610_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_pllv3_vf610_mf mf = clk_pllv3_vf610_rate_to_mf(*prate, rate); + + return clk_pllv3_vf610_mf_to_rate(*prate, mf); +} + +static int clk_pllv3_vf610_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + struct clk_pllv3_vf610_mf mf = + clk_pllv3_vf610_rate_to_mf(parent_rate, rate); + u32 val; + + val = readl_relaxed(pll->base); + if (mf.mfi == 20) + val &= ~pll->div_mask; /* clear bit for mfi=20 */ + else + val |= pll->div_mask; /* set bit for mfi=22 */ + writel_relaxed(val, pll->base); + + writel_relaxed(mf.mfn, pll->base + pll->num_offset); + writel_relaxed(mf.mfd, pll->base + pll->denom_offset); + + return clk_pllv3_wait_lock(pll); +} + +static const struct clk_ops clk_pllv3_vf610_ops = { + .prepare = clk_pllv3_prepare, + .unprepare = clk_pllv3_unprepare, + .is_prepared = clk_pllv3_is_prepared, + .recalc_rate = clk_pllv3_vf610_recalc_rate, + .round_rate = clk_pllv3_vf610_round_rate, + .set_rate = clk_pllv3_vf610_set_rate, +}; + +static unsigned long clk_pllv3_enet_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + + return pll->ref_clock; +} + +static const struct clk_ops clk_pllv3_enet_ops = { + .prepare = clk_pllv3_prepare, + .unprepare = clk_pllv3_unprepare, + .is_prepared = clk_pllv3_is_prepared, + .recalc_rate = clk_pllv3_enet_recalc_rate, +}; + +struct clk_hw *imx_clk_hw_pllv3(enum imx_pllv3_type type, const char *name, + const char *parent_name, void __iomem *base, + u32 div_mask) +{ + struct clk_pllv3 *pll; + const struct clk_ops *ops; + struct clk_hw *hw; + struct clk_init_data init; + int ret; + + pll = kzalloc(sizeof(*pll), GFP_KERNEL); + if (!pll) + return ERR_PTR(-ENOMEM); + + pll->power_bit = BM_PLL_POWER; + pll->num_offset = PLL_NUM_OFFSET; + pll->denom_offset = PLL_DENOM_OFFSET; + + switch (type) { + case IMX_PLLV3_SYS: + ops = &clk_pllv3_sys_ops; + break; + case IMX_PLLV3_SYS_VF610: + ops = &clk_pllv3_vf610_ops; + pll->num_offset = PLL_VF610_NUM_OFFSET; + pll->denom_offset = PLL_VF610_DENOM_OFFSET; + break; + case IMX_PLLV3_USB_VF610: + pll->div_shift = 1; + fallthrough; + case IMX_PLLV3_USB: + ops = &clk_pllv3_ops; + pll->powerup_set = true; + break; + case IMX_PLLV3_AV_IMX7: + pll->num_offset = PLL_IMX7_NUM_OFFSET; + pll->denom_offset = PLL_IMX7_DENOM_OFFSET; + fallthrough; + case IMX_PLLV3_AV: + ops = &clk_pllv3_av_ops; + break; + case IMX_PLLV3_ENET_IMX7: + pll->power_bit = IMX7_ENET_PLL_POWER; + pll->ref_clock = 1000000000; + ops = &clk_pllv3_enet_ops; + break; + case IMX_PLLV3_ENET: + pll->ref_clock = 500000000; + ops = &clk_pllv3_enet_ops; + break; + case IMX_PLLV3_DDR_IMX7: + pll->power_bit = IMX7_DDR_PLL_POWER; + pll->num_offset = PLL_IMX7_NUM_OFFSET; + pll->denom_offset = PLL_IMX7_DENOM_OFFSET; + ops = &clk_pllv3_av_ops; + break; + default: + ops = &clk_pllv3_ops; + } + pll->base = base; + pll->div_mask = div_mask; + + init.name = name; + init.ops = ops; + init.flags = 0; + init.parent_names = &parent_name; + init.num_parents = 1; + + pll->hw.init = &init; + hw = &pll->hw; + + ret = clk_hw_register(NULL, hw); + if (ret) { + kfree(pll); + return ERR_PTR(ret); + } + + return hw; +} |