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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/pinctrl/bcm/pinctrl-bcm6368.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/pinctrl/bcm/pinctrl-bcm6368.c')
-rw-r--r-- | drivers/pinctrl/bcm/pinctrl-bcm6368.c | 510 |
1 files changed, 510 insertions, 0 deletions
diff --git a/drivers/pinctrl/bcm/pinctrl-bcm6368.c b/drivers/pinctrl/bcm/pinctrl-bcm6368.c new file mode 100644 index 000000000..6208467ba --- /dev/null +++ b/drivers/pinctrl/bcm/pinctrl-bcm6368.c @@ -0,0 +1,510 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Driver for BCM6368 GPIO unit (pinctrl + GPIO) + * + * Copyright (C) 2021 Álvaro Fernández Rojas <noltari@gmail.com> + * Copyright (C) 2016 Jonas Gorski <jonas.gorski@gmail.com> + */ + +#include <linux/bits.h> +#include <linux/gpio/driver.h> +#include <linux/kernel.h> +#include <linux/of.h> +#include <linux/pinctrl/pinmux.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> + +#include "../pinctrl-utils.h" + +#include "pinctrl-bcm63xx.h" + +#define BCM6368_NUM_GPIOS 38 + +#define BCM6368_MODE_REG 0x18 +#define BCM6368_BASEMODE_REG 0x38 +#define BCM6368_BASEMODE_MASK 0x7 +#define BCM6368_BASEMODE_GPIO 0x0 +#define BCM6368_BASEMODE_UART1 0x1 + +struct bcm6368_function { + const char *name; + const char * const *groups; + const unsigned num_groups; + + unsigned dir_out:16; + unsigned basemode:3; +}; + +struct bcm6368_priv { + struct regmap_field *overlays; +}; + +#define BCM6368_BASEMODE_PIN(a, b) \ + { \ + .number = a, \ + .name = b, \ + .drv_data = (void *)true \ + } + +static const struct pinctrl_pin_desc bcm6368_pins[] = { + PINCTRL_PIN(0, "gpio0"), + PINCTRL_PIN(1, "gpio1"), + PINCTRL_PIN(2, "gpio2"), + PINCTRL_PIN(3, "gpio3"), + PINCTRL_PIN(4, "gpio4"), + PINCTRL_PIN(5, "gpio5"), + PINCTRL_PIN(6, "gpio6"), + PINCTRL_PIN(7, "gpio7"), + PINCTRL_PIN(8, "gpio8"), + PINCTRL_PIN(9, "gpio9"), + PINCTRL_PIN(10, "gpio10"), + PINCTRL_PIN(11, "gpio11"), + PINCTRL_PIN(12, "gpio12"), + PINCTRL_PIN(13, "gpio13"), + PINCTRL_PIN(14, "gpio14"), + PINCTRL_PIN(15, "gpio15"), + PINCTRL_PIN(16, "gpio16"), + PINCTRL_PIN(17, "gpio17"), + PINCTRL_PIN(18, "gpio18"), + PINCTRL_PIN(19, "gpio19"), + PINCTRL_PIN(20, "gpio20"), + PINCTRL_PIN(21, "gpio21"), + PINCTRL_PIN(22, "gpio22"), + PINCTRL_PIN(23, "gpio23"), + PINCTRL_PIN(24, "gpio24"), + PINCTRL_PIN(25, "gpio25"), + PINCTRL_PIN(26, "gpio26"), + PINCTRL_PIN(27, "gpio27"), + PINCTRL_PIN(28, "gpio28"), + PINCTRL_PIN(29, "gpio29"), + BCM6368_BASEMODE_PIN(30, "gpio30"), + BCM6368_BASEMODE_PIN(31, "gpio31"), + BCM6368_BASEMODE_PIN(32, "gpio32"), + BCM6368_BASEMODE_PIN(33, "gpio33"), + PINCTRL_PIN(34, "gpio34"), + PINCTRL_PIN(35, "gpio35"), + PINCTRL_PIN(36, "gpio36"), + PINCTRL_PIN(37, "gpio37"), +}; + +static unsigned gpio0_pins[] = { 0 }; +static unsigned gpio1_pins[] = { 1 }; +static unsigned gpio2_pins[] = { 2 }; +static unsigned gpio3_pins[] = { 3 }; +static unsigned gpio4_pins[] = { 4 }; +static unsigned gpio5_pins[] = { 5 }; +static unsigned gpio6_pins[] = { 6 }; +static unsigned gpio7_pins[] = { 7 }; +static unsigned gpio8_pins[] = { 8 }; +static unsigned gpio9_pins[] = { 9 }; +static unsigned gpio10_pins[] = { 10 }; +static unsigned gpio11_pins[] = { 11 }; +static unsigned gpio12_pins[] = { 12 }; +static unsigned gpio13_pins[] = { 13 }; +static unsigned gpio14_pins[] = { 14 }; +static unsigned gpio15_pins[] = { 15 }; +static unsigned gpio16_pins[] = { 16 }; +static unsigned gpio17_pins[] = { 17 }; +static unsigned gpio18_pins[] = { 18 }; +static unsigned gpio19_pins[] = { 19 }; +static unsigned gpio20_pins[] = { 20 }; +static unsigned gpio21_pins[] = { 21 }; +static unsigned gpio22_pins[] = { 22 }; +static unsigned gpio23_pins[] = { 23 }; +static unsigned gpio24_pins[] = { 24 }; +static unsigned gpio25_pins[] = { 25 }; +static unsigned gpio26_pins[] = { 26 }; +static unsigned gpio27_pins[] = { 27 }; +static unsigned gpio28_pins[] = { 28 }; +static unsigned gpio29_pins[] = { 29 }; +static unsigned gpio30_pins[] = { 30 }; +static unsigned gpio31_pins[] = { 31 }; +static unsigned uart1_grp_pins[] = { 30, 31, 32, 33 }; + +static struct pingroup bcm6368_groups[] = { + BCM_PIN_GROUP(gpio0), + BCM_PIN_GROUP(gpio1), + BCM_PIN_GROUP(gpio2), + BCM_PIN_GROUP(gpio3), + BCM_PIN_GROUP(gpio4), + BCM_PIN_GROUP(gpio5), + BCM_PIN_GROUP(gpio6), + BCM_PIN_GROUP(gpio7), + BCM_PIN_GROUP(gpio8), + BCM_PIN_GROUP(gpio9), + BCM_PIN_GROUP(gpio10), + BCM_PIN_GROUP(gpio11), + BCM_PIN_GROUP(gpio12), + BCM_PIN_GROUP(gpio13), + BCM_PIN_GROUP(gpio14), + BCM_PIN_GROUP(gpio15), + BCM_PIN_GROUP(gpio16), + BCM_PIN_GROUP(gpio17), + BCM_PIN_GROUP(gpio18), + BCM_PIN_GROUP(gpio19), + BCM_PIN_GROUP(gpio20), + BCM_PIN_GROUP(gpio21), + BCM_PIN_GROUP(gpio22), + BCM_PIN_GROUP(gpio23), + BCM_PIN_GROUP(gpio24), + BCM_PIN_GROUP(gpio25), + BCM_PIN_GROUP(gpio26), + BCM_PIN_GROUP(gpio27), + BCM_PIN_GROUP(gpio28), + BCM_PIN_GROUP(gpio29), + BCM_PIN_GROUP(gpio30), + BCM_PIN_GROUP(gpio31), + BCM_PIN_GROUP(uart1_grp), +}; + +static const char * const analog_afe_0_groups[] = { + "gpio0", +}; + +static const char * const analog_afe_1_groups[] = { + "gpio1", +}; + +static const char * const sys_irq_groups[] = { + "gpio2", +}; + +static const char * const serial_led_data_groups[] = { + "gpio3", +}; + +static const char * const serial_led_clk_groups[] = { + "gpio4", +}; + +static const char * const inet_led_groups[] = { + "gpio5", +}; + +static const char * const ephy0_led_groups[] = { + "gpio6", +}; + +static const char * const ephy1_led_groups[] = { + "gpio7", +}; + +static const char * const ephy2_led_groups[] = { + "gpio8", +}; + +static const char * const ephy3_led_groups[] = { + "gpio9", +}; + +static const char * const robosw_led_data_groups[] = { + "gpio10", +}; + +static const char * const robosw_led_clk_groups[] = { + "gpio11", +}; + +static const char * const robosw_led0_groups[] = { + "gpio12", +}; + +static const char * const robosw_led1_groups[] = { + "gpio13", +}; + +static const char * const usb_device_led_groups[] = { + "gpio14", +}; + +static const char * const pci_req1_groups[] = { + "gpio16", +}; + +static const char * const pci_gnt1_groups[] = { + "gpio17", +}; + +static const char * const pci_intb_groups[] = { + "gpio18", +}; + +static const char * const pci_req0_groups[] = { + "gpio19", +}; + +static const char * const pci_gnt0_groups[] = { + "gpio20", +}; + +static const char * const pcmcia_cd1_groups[] = { + "gpio22", +}; + +static const char * const pcmcia_cd2_groups[] = { + "gpio23", +}; + +static const char * const pcmcia_vs1_groups[] = { + "gpio24", +}; + +static const char * const pcmcia_vs2_groups[] = { + "gpio25", +}; + +static const char * const ebi_cs2_groups[] = { + "gpio26", +}; + +static const char * const ebi_cs3_groups[] = { + "gpio27", +}; + +static const char * const spi_cs2_groups[] = { + "gpio28", +}; + +static const char * const spi_cs3_groups[] = { + "gpio29", +}; + +static const char * const spi_cs4_groups[] = { + "gpio30", +}; + +static const char * const spi_cs5_groups[] = { + "gpio31", +}; + +static const char * const uart1_groups[] = { + "uart1_grp", +}; + +#define BCM6368_FUN(n, out) \ + { \ + .name = #n, \ + .groups = n##_groups, \ + .num_groups = ARRAY_SIZE(n##_groups), \ + .dir_out = out, \ + } + +#define BCM6368_BASEMODE_FUN(n, val, out) \ + { \ + .name = #n, \ + .groups = n##_groups, \ + .num_groups = ARRAY_SIZE(n##_groups), \ + .basemode = BCM6368_BASEMODE_##val, \ + .dir_out = out, \ + } + +static const struct bcm6368_function bcm6368_funcs[] = { + BCM6368_FUN(analog_afe_0, 1), + BCM6368_FUN(analog_afe_1, 1), + BCM6368_FUN(sys_irq, 1), + BCM6368_FUN(serial_led_data, 1), + BCM6368_FUN(serial_led_clk, 1), + BCM6368_FUN(inet_led, 1), + BCM6368_FUN(ephy0_led, 1), + BCM6368_FUN(ephy1_led, 1), + BCM6368_FUN(ephy2_led, 1), + BCM6368_FUN(ephy3_led, 1), + BCM6368_FUN(robosw_led_data, 1), + BCM6368_FUN(robosw_led_clk, 1), + BCM6368_FUN(robosw_led0, 1), + BCM6368_FUN(robosw_led1, 1), + BCM6368_FUN(usb_device_led, 1), + BCM6368_FUN(pci_req1, 0), + BCM6368_FUN(pci_gnt1, 0), + BCM6368_FUN(pci_intb, 0), + BCM6368_FUN(pci_req0, 0), + BCM6368_FUN(pci_gnt0, 0), + BCM6368_FUN(pcmcia_cd1, 0), + BCM6368_FUN(pcmcia_cd2, 0), + BCM6368_FUN(pcmcia_vs1, 0), + BCM6368_FUN(pcmcia_vs2, 0), + BCM6368_FUN(ebi_cs2, 1), + BCM6368_FUN(ebi_cs3, 1), + BCM6368_FUN(spi_cs2, 1), + BCM6368_FUN(spi_cs3, 1), + BCM6368_FUN(spi_cs4, 1), + BCM6368_FUN(spi_cs5, 1), + BCM6368_BASEMODE_FUN(uart1, UART1, 0x6), +}; + +static int bcm6368_pinctrl_get_group_count(struct pinctrl_dev *pctldev) +{ + return ARRAY_SIZE(bcm6368_groups); +} + +static const char *bcm6368_pinctrl_get_group_name(struct pinctrl_dev *pctldev, + unsigned group) +{ + return bcm6368_groups[group].name; +} + +static int bcm6368_pinctrl_get_group_pins(struct pinctrl_dev *pctldev, + unsigned group, const unsigned **pins, + unsigned *npins) +{ + *pins = bcm6368_groups[group].pins; + *npins = bcm6368_groups[group].npins; + + return 0; +} + +static int bcm6368_pinctrl_get_func_count(struct pinctrl_dev *pctldev) +{ + return ARRAY_SIZE(bcm6368_funcs); +} + +static const char *bcm6368_pinctrl_get_func_name(struct pinctrl_dev *pctldev, + unsigned selector) +{ + return bcm6368_funcs[selector].name; +} + +static int bcm6368_pinctrl_get_groups(struct pinctrl_dev *pctldev, + unsigned selector, + const char * const **groups, + unsigned * const num_groups) +{ + *groups = bcm6368_funcs[selector].groups; + *num_groups = bcm6368_funcs[selector].num_groups; + + return 0; +} + +static int bcm6368_pinctrl_set_mux(struct pinctrl_dev *pctldev, + unsigned selector, unsigned group) +{ + struct bcm63xx_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); + struct bcm6368_priv *priv = pc->driver_data; + const struct pingroup *pg = &bcm6368_groups[group]; + const struct bcm6368_function *fun = &bcm6368_funcs[selector]; + int i, pin; + + if (fun->basemode) { + unsigned int mask = 0; + + for (i = 0; i < pg->npins; i++) { + pin = pg->pins[i]; + if (pin < BCM63XX_BANK_GPIOS) + mask |= BIT(pin); + } + + regmap_update_bits(pc->regs, BCM6368_MODE_REG, mask, 0); + regmap_field_write(priv->overlays, fun->basemode); + } else { + pin = pg->pins[0]; + + if (bcm6368_pins[pin].drv_data) + regmap_field_write(priv->overlays, + BCM6368_BASEMODE_GPIO); + + regmap_update_bits(pc->regs, BCM6368_MODE_REG, BIT(pin), + BIT(pin)); + } + + for (pin = 0; pin < pg->npins; pin++) { + struct pinctrl_gpio_range *range; + int hw_gpio = bcm6368_pins[pin].number; + + range = pinctrl_find_gpio_range_from_pin(pctldev, hw_gpio); + if (range) { + struct gpio_chip *gc = range->gc; + + if (fun->dir_out & BIT(pin)) + gc->direction_output(gc, hw_gpio, 0); + else + gc->direction_input(gc, hw_gpio); + } + } + + return 0; +} + +static int bcm6368_gpio_request_enable(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned offset) +{ + struct bcm63xx_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); + struct bcm6368_priv *priv = pc->driver_data; + + if (offset >= BCM63XX_BANK_GPIOS && !bcm6368_pins[offset].drv_data) + return 0; + + /* disable all functions using this pin */ + if (offset < BCM63XX_BANK_GPIOS) + regmap_update_bits(pc->regs, BCM6368_MODE_REG, BIT(offset), 0); + + if (bcm6368_pins[offset].drv_data) + regmap_field_write(priv->overlays, BCM6368_BASEMODE_GPIO); + + return 0; +} + +static const struct pinctrl_ops bcm6368_pctl_ops = { + .dt_free_map = pinctrl_utils_free_map, + .dt_node_to_map = pinconf_generic_dt_node_to_map_pin, + .get_group_name = bcm6368_pinctrl_get_group_name, + .get_group_pins = bcm6368_pinctrl_get_group_pins, + .get_groups_count = bcm6368_pinctrl_get_group_count, +}; + +static const struct pinmux_ops bcm6368_pmx_ops = { + .get_function_groups = bcm6368_pinctrl_get_groups, + .get_function_name = bcm6368_pinctrl_get_func_name, + .get_functions_count = bcm6368_pinctrl_get_func_count, + .gpio_request_enable = bcm6368_gpio_request_enable, + .set_mux = bcm6368_pinctrl_set_mux, + .strict = true, +}; + +static const struct bcm63xx_pinctrl_soc bcm6368_soc = { + .ngpios = BCM6368_NUM_GPIOS, + .npins = ARRAY_SIZE(bcm6368_pins), + .pctl_ops = &bcm6368_pctl_ops, + .pins = bcm6368_pins, + .pmx_ops = &bcm6368_pmx_ops, +}; + +static int bcm6368_pinctrl_probe(struct platform_device *pdev) +{ + struct reg_field overlays = REG_FIELD(BCM6368_BASEMODE_REG, 0, 15); + struct device *dev = &pdev->dev; + struct bcm63xx_pinctrl *pc; + struct bcm6368_priv *priv; + int err; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + err = bcm63xx_pinctrl_probe(pdev, &bcm6368_soc, (void *) priv); + if (err) + return err; + + pc = platform_get_drvdata(pdev); + + priv->overlays = devm_regmap_field_alloc(dev, pc->regs, overlays); + if (IS_ERR(priv->overlays)) + return PTR_ERR(priv->overlays); + + return 0; +} + +static const struct of_device_id bcm6368_pinctrl_match[] = { + { .compatible = "brcm,bcm6368-pinctrl", }, + { /* sentinel */ } +}; + +static struct platform_driver bcm6368_pinctrl_driver = { + .probe = bcm6368_pinctrl_probe, + .driver = { + .name = "bcm6368-pinctrl", + .of_match_table = bcm6368_pinctrl_match, + }, +}; + +builtin_platform_driver(bcm6368_pinctrl_driver); |