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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 /drivers/regulator/lp8788-ldo.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 'drivers/regulator/lp8788-ldo.c')
-rw-r--r--drivers/regulator/lp8788-ldo.c638
1 files changed, 638 insertions, 0 deletions
diff --git a/drivers/regulator/lp8788-ldo.c b/drivers/regulator/lp8788-ldo.c
new file mode 100644
index 000000000..00e9bb92c
--- /dev/null
+++ b/drivers/regulator/lp8788-ldo.c
@@ -0,0 +1,638 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * TI LP8788 MFD - ldo regulator driver
+ *
+ * Copyright 2012 Texas Instruments
+ *
+ * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/gpio/consumer.h>
+#include <linux/mfd/lp8788.h>
+
+/* register address */
+#define LP8788_EN_LDO_A 0x0D /* DLDO 1 ~ 8 */
+#define LP8788_EN_LDO_B 0x0E /* DLDO 9 ~ 12, ALDO 1 ~ 4 */
+#define LP8788_EN_LDO_C 0x0F /* ALDO 5 ~ 10 */
+#define LP8788_EN_SEL 0x10
+#define LP8788_DLDO1_VOUT 0x2E
+#define LP8788_DLDO2_VOUT 0x2F
+#define LP8788_DLDO3_VOUT 0x30
+#define LP8788_DLDO4_VOUT 0x31
+#define LP8788_DLDO5_VOUT 0x32
+#define LP8788_DLDO6_VOUT 0x33
+#define LP8788_DLDO7_VOUT 0x34
+#define LP8788_DLDO8_VOUT 0x35
+#define LP8788_DLDO9_VOUT 0x36
+#define LP8788_DLDO10_VOUT 0x37
+#define LP8788_DLDO11_VOUT 0x38
+#define LP8788_DLDO12_VOUT 0x39
+#define LP8788_ALDO1_VOUT 0x3A
+#define LP8788_ALDO2_VOUT 0x3B
+#define LP8788_ALDO3_VOUT 0x3C
+#define LP8788_ALDO4_VOUT 0x3D
+#define LP8788_ALDO5_VOUT 0x3E
+#define LP8788_ALDO6_VOUT 0x3F
+#define LP8788_ALDO7_VOUT 0x40
+#define LP8788_ALDO8_VOUT 0x41
+#define LP8788_ALDO9_VOUT 0x42
+#define LP8788_ALDO10_VOUT 0x43
+#define LP8788_DLDO1_TIMESTEP 0x44
+
+/* mask/shift bits */
+#define LP8788_EN_DLDO1_M BIT(0) /* Addr 0Dh ~ 0Fh */
+#define LP8788_EN_DLDO2_M BIT(1)
+#define LP8788_EN_DLDO3_M BIT(2)
+#define LP8788_EN_DLDO4_M BIT(3)
+#define LP8788_EN_DLDO5_M BIT(4)
+#define LP8788_EN_DLDO6_M BIT(5)
+#define LP8788_EN_DLDO7_M BIT(6)
+#define LP8788_EN_DLDO8_M BIT(7)
+#define LP8788_EN_DLDO9_M BIT(0)
+#define LP8788_EN_DLDO10_M BIT(1)
+#define LP8788_EN_DLDO11_M BIT(2)
+#define LP8788_EN_DLDO12_M BIT(3)
+#define LP8788_EN_ALDO1_M BIT(4)
+#define LP8788_EN_ALDO2_M BIT(5)
+#define LP8788_EN_ALDO3_M BIT(6)
+#define LP8788_EN_ALDO4_M BIT(7)
+#define LP8788_EN_ALDO5_M BIT(0)
+#define LP8788_EN_ALDO6_M BIT(1)
+#define LP8788_EN_ALDO7_M BIT(2)
+#define LP8788_EN_ALDO8_M BIT(3)
+#define LP8788_EN_ALDO9_M BIT(4)
+#define LP8788_EN_ALDO10_M BIT(5)
+#define LP8788_EN_SEL_DLDO911_M BIT(0) /* Addr 10h */
+#define LP8788_EN_SEL_DLDO7_M BIT(1)
+#define LP8788_EN_SEL_ALDO7_M BIT(2)
+#define LP8788_EN_SEL_ALDO5_M BIT(3)
+#define LP8788_EN_SEL_ALDO234_M BIT(4)
+#define LP8788_EN_SEL_ALDO1_M BIT(5)
+#define LP8788_VOUT_5BIT_M 0x1F /* Addr 2Eh ~ 43h */
+#define LP8788_VOUT_4BIT_M 0x0F
+#define LP8788_VOUT_3BIT_M 0x07
+#define LP8788_VOUT_1BIT_M 0x01
+#define LP8788_STARTUP_TIME_M 0xF8 /* Addr 44h ~ 59h */
+#define LP8788_STARTUP_TIME_S 3
+
+#define ENABLE_TIME_USEC 32
+
+enum lp8788_ldo_id {
+ DLDO1,
+ DLDO2,
+ DLDO3,
+ DLDO4,
+ DLDO5,
+ DLDO6,
+ DLDO7,
+ DLDO8,
+ DLDO9,
+ DLDO10,
+ DLDO11,
+ DLDO12,
+ ALDO1,
+ ALDO2,
+ ALDO3,
+ ALDO4,
+ ALDO5,
+ ALDO6,
+ ALDO7,
+ ALDO8,
+ ALDO9,
+ ALDO10,
+};
+
+struct lp8788_ldo {
+ struct lp8788 *lp;
+ struct regulator_desc *desc;
+ struct regulator_dev *regulator;
+ struct gpio_desc *ena_gpiod;
+};
+
+/* DLDO 1, 2, 3, 9 voltage table */
+static const int lp8788_dldo1239_vtbl[] = {
+ 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000,
+ 2600000, 2700000, 2800000, 2900000, 3000000, 2850000, 2850000, 2850000,
+ 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000,
+ 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000,
+};
+
+/* DLDO 4 voltage table */
+static const int lp8788_dldo4_vtbl[] = { 1800000, 3000000 };
+
+/* DLDO 5, 7, 8 and ALDO 6 voltage table */
+static const int lp8788_dldo578_aldo6_vtbl[] = {
+ 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000,
+ 2600000, 2700000, 2800000, 2900000, 3000000, 3000000, 3000000, 3000000,
+};
+
+/* DLDO 6 voltage table */
+static const int lp8788_dldo6_vtbl[] = {
+ 3000000, 3100000, 3200000, 3300000, 3400000, 3500000, 3600000, 3600000,
+};
+
+/* DLDO 10, 11 voltage table */
+static const int lp8788_dldo1011_vtbl[] = {
+ 1100000, 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000,
+ 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000,
+};
+
+/* ALDO 1 voltage table */
+static const int lp8788_aldo1_vtbl[] = { 1800000, 2850000 };
+
+/* ALDO 7 voltage table */
+static const int lp8788_aldo7_vtbl[] = {
+ 1200000, 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1800000,
+};
+
+static int lp8788_ldo_enable_time(struct regulator_dev *rdev)
+{
+ struct lp8788_ldo *ldo = rdev_get_drvdata(rdev);
+ enum lp8788_ldo_id id = rdev_get_id(rdev);
+ u8 val, addr = LP8788_DLDO1_TIMESTEP + id;
+
+ if (lp8788_read_byte(ldo->lp, addr, &val))
+ return -EINVAL;
+
+ val = (val & LP8788_STARTUP_TIME_M) >> LP8788_STARTUP_TIME_S;
+
+ return ENABLE_TIME_USEC * val;
+}
+
+static const struct regulator_ops lp8788_ldo_voltage_table_ops = {
+ .list_voltage = regulator_list_voltage_table,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable_time = lp8788_ldo_enable_time,
+};
+
+static const struct regulator_ops lp8788_ldo_voltage_fixed_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable_time = lp8788_ldo_enable_time,
+};
+
+static const struct regulator_desc lp8788_dldo_desc[] = {
+ {
+ .name = "dldo1",
+ .id = DLDO1,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl),
+ .volt_table = lp8788_dldo1239_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_DLDO1_VOUT,
+ .vsel_mask = LP8788_VOUT_5BIT_M,
+ .enable_reg = LP8788_EN_LDO_A,
+ .enable_mask = LP8788_EN_DLDO1_M,
+ },
+ {
+ .name = "dldo2",
+ .id = DLDO2,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl),
+ .volt_table = lp8788_dldo1239_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_DLDO2_VOUT,
+ .vsel_mask = LP8788_VOUT_5BIT_M,
+ .enable_reg = LP8788_EN_LDO_A,
+ .enable_mask = LP8788_EN_DLDO2_M,
+ },
+ {
+ .name = "dldo3",
+ .id = DLDO3,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl),
+ .volt_table = lp8788_dldo1239_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_DLDO3_VOUT,
+ .vsel_mask = LP8788_VOUT_5BIT_M,
+ .enable_reg = LP8788_EN_LDO_A,
+ .enable_mask = LP8788_EN_DLDO3_M,
+ },
+ {
+ .name = "dldo4",
+ .id = DLDO4,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo4_vtbl),
+ .volt_table = lp8788_dldo4_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_DLDO4_VOUT,
+ .vsel_mask = LP8788_VOUT_1BIT_M,
+ .enable_reg = LP8788_EN_LDO_A,
+ .enable_mask = LP8788_EN_DLDO4_M,
+ },
+ {
+ .name = "dldo5",
+ .id = DLDO5,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl),
+ .volt_table = lp8788_dldo578_aldo6_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_DLDO5_VOUT,
+ .vsel_mask = LP8788_VOUT_4BIT_M,
+ .enable_reg = LP8788_EN_LDO_A,
+ .enable_mask = LP8788_EN_DLDO5_M,
+ },
+ {
+ .name = "dldo6",
+ .id = DLDO6,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo6_vtbl),
+ .volt_table = lp8788_dldo6_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_DLDO6_VOUT,
+ .vsel_mask = LP8788_VOUT_3BIT_M,
+ .enable_reg = LP8788_EN_LDO_A,
+ .enable_mask = LP8788_EN_DLDO6_M,
+ },
+ {
+ .name = "dldo7",
+ .id = DLDO7,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl),
+ .volt_table = lp8788_dldo578_aldo6_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_DLDO7_VOUT,
+ .vsel_mask = LP8788_VOUT_4BIT_M,
+ .enable_reg = LP8788_EN_LDO_A,
+ .enable_mask = LP8788_EN_DLDO7_M,
+ },
+ {
+ .name = "dldo8",
+ .id = DLDO8,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl),
+ .volt_table = lp8788_dldo578_aldo6_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_DLDO8_VOUT,
+ .vsel_mask = LP8788_VOUT_4BIT_M,
+ .enable_reg = LP8788_EN_LDO_A,
+ .enable_mask = LP8788_EN_DLDO8_M,
+ },
+ {
+ .name = "dldo9",
+ .id = DLDO9,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl),
+ .volt_table = lp8788_dldo1239_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_DLDO9_VOUT,
+ .vsel_mask = LP8788_VOUT_5BIT_M,
+ .enable_reg = LP8788_EN_LDO_B,
+ .enable_mask = LP8788_EN_DLDO9_M,
+ },
+ {
+ .name = "dldo10",
+ .id = DLDO10,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo1011_vtbl),
+ .volt_table = lp8788_dldo1011_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_DLDO10_VOUT,
+ .vsel_mask = LP8788_VOUT_4BIT_M,
+ .enable_reg = LP8788_EN_LDO_B,
+ .enable_mask = LP8788_EN_DLDO10_M,
+ },
+ {
+ .name = "dldo11",
+ .id = DLDO11,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo1011_vtbl),
+ .volt_table = lp8788_dldo1011_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_DLDO11_VOUT,
+ .vsel_mask = LP8788_VOUT_4BIT_M,
+ .enable_reg = LP8788_EN_LDO_B,
+ .enable_mask = LP8788_EN_DLDO11_M,
+ },
+ {
+ .name = "dldo12",
+ .id = DLDO12,
+ .ops = &lp8788_ldo_voltage_fixed_ops,
+ .n_voltages = 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .enable_reg = LP8788_EN_LDO_B,
+ .enable_mask = LP8788_EN_DLDO12_M,
+ .min_uV = 2500000,
+ },
+};
+
+static const struct regulator_desc lp8788_aldo_desc[] = {
+ {
+ .name = "aldo1",
+ .id = ALDO1,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_aldo1_vtbl),
+ .volt_table = lp8788_aldo1_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_ALDO1_VOUT,
+ .vsel_mask = LP8788_VOUT_1BIT_M,
+ .enable_reg = LP8788_EN_LDO_B,
+ .enable_mask = LP8788_EN_ALDO1_M,
+ },
+ {
+ .name = "aldo2",
+ .id = ALDO2,
+ .ops = &lp8788_ldo_voltage_fixed_ops,
+ .n_voltages = 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .enable_reg = LP8788_EN_LDO_B,
+ .enable_mask = LP8788_EN_ALDO2_M,
+ .min_uV = 2850000,
+ },
+ {
+ .name = "aldo3",
+ .id = ALDO3,
+ .ops = &lp8788_ldo_voltage_fixed_ops,
+ .n_voltages = 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .enable_reg = LP8788_EN_LDO_B,
+ .enable_mask = LP8788_EN_ALDO3_M,
+ .min_uV = 2850000,
+ },
+ {
+ .name = "aldo4",
+ .id = ALDO4,
+ .ops = &lp8788_ldo_voltage_fixed_ops,
+ .n_voltages = 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .enable_reg = LP8788_EN_LDO_B,
+ .enable_mask = LP8788_EN_ALDO4_M,
+ .min_uV = 2850000,
+ },
+ {
+ .name = "aldo5",
+ .id = ALDO5,
+ .ops = &lp8788_ldo_voltage_fixed_ops,
+ .n_voltages = 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .enable_reg = LP8788_EN_LDO_C,
+ .enable_mask = LP8788_EN_ALDO5_M,
+ .min_uV = 2850000,
+ },
+ {
+ .name = "aldo6",
+ .id = ALDO6,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl),
+ .volt_table = lp8788_dldo578_aldo6_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_ALDO6_VOUT,
+ .vsel_mask = LP8788_VOUT_4BIT_M,
+ .enable_reg = LP8788_EN_LDO_C,
+ .enable_mask = LP8788_EN_ALDO6_M,
+ },
+ {
+ .name = "aldo7",
+ .id = ALDO7,
+ .ops = &lp8788_ldo_voltage_table_ops,
+ .n_voltages = ARRAY_SIZE(lp8788_aldo7_vtbl),
+ .volt_table = lp8788_aldo7_vtbl,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LP8788_ALDO7_VOUT,
+ .vsel_mask = LP8788_VOUT_3BIT_M,
+ .enable_reg = LP8788_EN_LDO_C,
+ .enable_mask = LP8788_EN_ALDO7_M,
+ },
+ {
+ .name = "aldo8",
+ .id = ALDO8,
+ .ops = &lp8788_ldo_voltage_fixed_ops,
+ .n_voltages = 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .enable_reg = LP8788_EN_LDO_C,
+ .enable_mask = LP8788_EN_ALDO8_M,
+ .min_uV = 2500000,
+ },
+ {
+ .name = "aldo9",
+ .id = ALDO9,
+ .ops = &lp8788_ldo_voltage_fixed_ops,
+ .n_voltages = 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .enable_reg = LP8788_EN_LDO_C,
+ .enable_mask = LP8788_EN_ALDO9_M,
+ .min_uV = 2500000,
+ },
+ {
+ .name = "aldo10",
+ .id = ALDO10,
+ .ops = &lp8788_ldo_voltage_fixed_ops,
+ .n_voltages = 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .enable_reg = LP8788_EN_LDO_C,
+ .enable_mask = LP8788_EN_ALDO10_M,
+ .min_uV = 1100000,
+ },
+};
+
+static int lp8788_config_ldo_enable_mode(struct platform_device *pdev,
+ struct lp8788_ldo *ldo,
+ enum lp8788_ldo_id id)
+{
+ struct lp8788 *lp = ldo->lp;
+ enum lp8788_ext_ldo_en_id enable_id;
+ static const u8 en_mask[] = {
+ [EN_ALDO1] = LP8788_EN_SEL_ALDO1_M,
+ [EN_ALDO234] = LP8788_EN_SEL_ALDO234_M,
+ [EN_ALDO5] = LP8788_EN_SEL_ALDO5_M,
+ [EN_ALDO7] = LP8788_EN_SEL_ALDO7_M,
+ [EN_DLDO7] = LP8788_EN_SEL_DLDO7_M,
+ [EN_DLDO911] = LP8788_EN_SEL_DLDO911_M,
+ };
+
+ switch (id) {
+ case DLDO7:
+ enable_id = EN_DLDO7;
+ break;
+ case DLDO9:
+ case DLDO11:
+ enable_id = EN_DLDO911;
+ break;
+ case ALDO1:
+ enable_id = EN_ALDO1;
+ break;
+ case ALDO2 ... ALDO4:
+ enable_id = EN_ALDO234;
+ break;
+ case ALDO5:
+ enable_id = EN_ALDO5;
+ break;
+ case ALDO7:
+ enable_id = EN_ALDO7;
+ break;
+ default:
+ return 0;
+ }
+
+ /*
+ * Do not use devm* here: the regulator core takes over the
+ * lifecycle management of the GPIO descriptor.
+ * FIXME: check default mode for GPIO here: high or low?
+ */
+ ldo->ena_gpiod = gpiod_get_index_optional(&pdev->dev,
+ "enable",
+ enable_id,
+ GPIOD_OUT_HIGH |
+ GPIOD_FLAGS_BIT_NONEXCLUSIVE);
+ if (IS_ERR(ldo->ena_gpiod))
+ return PTR_ERR(ldo->ena_gpiod);
+
+ /* if no GPIO for ldo pin, then set default enable mode */
+ if (!ldo->ena_gpiod)
+ goto set_default_ldo_enable_mode;
+
+ return 0;
+
+set_default_ldo_enable_mode:
+ return lp8788_update_bits(lp, LP8788_EN_SEL, en_mask[enable_id], 0);
+}
+
+static int lp8788_dldo_probe(struct platform_device *pdev)
+{
+ struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent);
+ int id = pdev->id;
+ struct lp8788_ldo *ldo;
+ struct regulator_config cfg = { };
+ struct regulator_dev *rdev;
+ int ret;
+
+ ldo = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_ldo), GFP_KERNEL);
+ if (!ldo)
+ return -ENOMEM;
+
+ ldo->lp = lp;
+ ret = lp8788_config_ldo_enable_mode(pdev, ldo, id);
+ if (ret)
+ return ret;
+
+ if (ldo->ena_gpiod)
+ cfg.ena_gpiod = ldo->ena_gpiod;
+
+ cfg.dev = pdev->dev.parent;
+ cfg.init_data = lp->pdata ? lp->pdata->dldo_data[id] : NULL;
+ cfg.driver_data = ldo;
+ cfg.regmap = lp->regmap;
+
+ rdev = devm_regulator_register(&pdev->dev, &lp8788_dldo_desc[id], &cfg);
+ if (IS_ERR(rdev)) {
+ ret = PTR_ERR(rdev);
+ dev_err(&pdev->dev, "DLDO%d regulator register err = %d\n",
+ id + 1, ret);
+ return ret;
+ }
+
+ ldo->regulator = rdev;
+ platform_set_drvdata(pdev, ldo);
+
+ return 0;
+}
+
+static struct platform_driver lp8788_dldo_driver = {
+ .probe = lp8788_dldo_probe,
+ .driver = {
+ .name = LP8788_DEV_DLDO,
+ },
+};
+
+static int lp8788_aldo_probe(struct platform_device *pdev)
+{
+ struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent);
+ int id = pdev->id;
+ struct lp8788_ldo *ldo;
+ struct regulator_config cfg = { };
+ struct regulator_dev *rdev;
+ int ret;
+
+ ldo = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_ldo), GFP_KERNEL);
+ if (!ldo)
+ return -ENOMEM;
+
+ ldo->lp = lp;
+ ret = lp8788_config_ldo_enable_mode(pdev, ldo, id + ALDO1);
+ if (ret)
+ return ret;
+
+ if (ldo->ena_gpiod)
+ cfg.ena_gpiod = ldo->ena_gpiod;
+
+ cfg.dev = pdev->dev.parent;
+ cfg.init_data = lp->pdata ? lp->pdata->aldo_data[id] : NULL;
+ cfg.driver_data = ldo;
+ cfg.regmap = lp->regmap;
+
+ rdev = devm_regulator_register(&pdev->dev, &lp8788_aldo_desc[id], &cfg);
+ if (IS_ERR(rdev)) {
+ ret = PTR_ERR(rdev);
+ dev_err(&pdev->dev, "ALDO%d regulator register err = %d\n",
+ id + 1, ret);
+ return ret;
+ }
+
+ ldo->regulator = rdev;
+ platform_set_drvdata(pdev, ldo);
+
+ return 0;
+}
+
+static struct platform_driver lp8788_aldo_driver = {
+ .probe = lp8788_aldo_probe,
+ .driver = {
+ .name = LP8788_DEV_ALDO,
+ },
+};
+
+static struct platform_driver * const drivers[] = {
+ &lp8788_dldo_driver,
+ &lp8788_aldo_driver,
+};
+
+static int __init lp8788_ldo_init(void)
+{
+ return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
+}
+subsys_initcall(lp8788_ldo_init);
+
+static void __exit lp8788_ldo_exit(void)
+{
+ platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
+}
+module_exit(lp8788_ldo_exit);
+
+MODULE_DESCRIPTION("TI LP8788 LDO Driver");
+MODULE_AUTHOR("Milo Kim");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:lp8788-dldo");
+MODULE_ALIAS("platform:lp8788-aldo");