aboutsummaryrefslogtreecommitdiff
path: root/drivers/regulator/tps6507x-regulator.c
diff options
context:
space:
mode:
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/tps6507x-regulator.c
downloadlinux-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/regulator/tps6507x-regulator.c')
-rw-r--r--drivers/regulator/tps6507x-regulator.c460
1 files changed, 460 insertions, 0 deletions
diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c
new file mode 100644
index 000000000..b83816ee6
--- /dev/null
+++ b/drivers/regulator/tps6507x-regulator.c
@@ -0,0 +1,460 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * tps6507x-regulator.c
+ *
+ * Regulator driver for TPS65073 PMIC
+ *
+ * Copyright (C) 2009 Texas Instrument Incorporated - https://www.ti.com/
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/tps6507x.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/mfd/tps6507x.h>
+#include <linux/regulator/of_regulator.h>
+
+/* DCDC's */
+#define TPS6507X_DCDC_1 0
+#define TPS6507X_DCDC_2 1
+#define TPS6507X_DCDC_3 2
+/* LDOs */
+#define TPS6507X_LDO_1 3
+#define TPS6507X_LDO_2 4
+
+#define TPS6507X_MAX_REG_ID TPS6507X_LDO_2
+
+/* Number of step-down converters available */
+#define TPS6507X_NUM_DCDC 3
+/* Number of LDO voltage regulators available */
+#define TPS6507X_NUM_LDO 2
+/* Number of total regulators available */
+#define TPS6507X_NUM_REGULATOR (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO)
+
+/* Supported voltage values for regulators (in microVolts) */
+static const unsigned int VDCDCx_VSEL_table[] = {
+ 725000, 750000, 775000, 800000,
+ 825000, 850000, 875000, 900000,
+ 925000, 950000, 975000, 1000000,
+ 1025000, 1050000, 1075000, 1100000,
+ 1125000, 1150000, 1175000, 1200000,
+ 1225000, 1250000, 1275000, 1300000,
+ 1325000, 1350000, 1375000, 1400000,
+ 1425000, 1450000, 1475000, 1500000,
+ 1550000, 1600000, 1650000, 1700000,
+ 1750000, 1800000, 1850000, 1900000,
+ 1950000, 2000000, 2050000, 2100000,
+ 2150000, 2200000, 2250000, 2300000,
+ 2350000, 2400000, 2450000, 2500000,
+ 2550000, 2600000, 2650000, 2700000,
+ 2750000, 2800000, 2850000, 2900000,
+ 3000000, 3100000, 3200000, 3300000,
+};
+
+static const unsigned int LDO1_VSEL_table[] = {
+ 1000000, 1100000, 1200000, 1250000,
+ 1300000, 1350000, 1400000, 1500000,
+ 1600000, 1800000, 2500000, 2750000,
+ 2800000, 3000000, 3100000, 3300000,
+};
+
+/* The voltage mapping table for LDO2 is the same as VDCDCx */
+#define LDO2_VSEL_table VDCDCx_VSEL_table
+
+struct tps_info {
+ const char *name;
+ u8 table_len;
+ const unsigned int *table;
+
+ /* Does DCDC high or the low register defines output voltage? */
+ bool defdcdc_default;
+};
+
+static struct tps_info tps6507x_pmic_regs[] = {
+ {
+ .name = "VDCDC1",
+ .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+ .table = VDCDCx_VSEL_table,
+ },
+ {
+ .name = "VDCDC2",
+ .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+ .table = VDCDCx_VSEL_table,
+ },
+ {
+ .name = "VDCDC3",
+ .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+ .table = VDCDCx_VSEL_table,
+ },
+ {
+ .name = "LDO1",
+ .table_len = ARRAY_SIZE(LDO1_VSEL_table),
+ .table = LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .table_len = ARRAY_SIZE(LDO2_VSEL_table),
+ .table = LDO2_VSEL_table,
+ },
+};
+
+struct tps6507x_pmic {
+ struct regulator_desc desc[TPS6507X_NUM_REGULATOR];
+ struct tps6507x_dev *mfd;
+ struct tps_info *info[TPS6507X_NUM_REGULATOR];
+ struct mutex io_lock;
+};
+static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg)
+{
+ u8 val;
+ int err;
+
+ err = tps->mfd->read_dev(tps->mfd, reg, 1, &val);
+
+ if (err)
+ return err;
+
+ return val;
+}
+
+static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
+{
+ return tps->mfd->write_dev(tps->mfd, reg, 1, &val);
+}
+
+static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
+{
+ int err, data;
+
+ mutex_lock(&tps->io_lock);
+
+ data = tps6507x_pmic_read(tps, reg);
+ if (data < 0) {
+ dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
+ err = data;
+ goto out;
+ }
+
+ data |= mask;
+ err = tps6507x_pmic_write(tps, reg, data);
+ if (err)
+ dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
+
+out:
+ mutex_unlock(&tps->io_lock);
+ return err;
+}
+
+static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
+{
+ int err, data;
+
+ mutex_lock(&tps->io_lock);
+
+ data = tps6507x_pmic_read(tps, reg);
+ if (data < 0) {
+ dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
+ err = data;
+ goto out;
+ }
+
+ data &= ~mask;
+ err = tps6507x_pmic_write(tps, reg, data);
+ if (err)
+ dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
+
+out:
+ mutex_unlock(&tps->io_lock);
+ return err;
+}
+
+static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg)
+{
+ int data;
+
+ mutex_lock(&tps->io_lock);
+
+ data = tps6507x_pmic_read(tps, reg);
+ if (data < 0)
+ dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
+
+ mutex_unlock(&tps->io_lock);
+ return data;
+}
+
+static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
+{
+ int err;
+
+ mutex_lock(&tps->io_lock);
+
+ err = tps6507x_pmic_write(tps, reg, val);
+ if (err < 0)
+ dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
+
+ mutex_unlock(&tps->io_lock);
+ return err;
+}
+
+static int tps6507x_pmic_is_enabled(struct regulator_dev *dev)
+{
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int data, rid = rdev_get_id(dev);
+ u8 shift;
+
+ if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
+ return -EINVAL;
+
+ shift = TPS6507X_MAX_REG_ID - rid;
+ data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1);
+
+ if (data < 0)
+ return data;
+ else
+ return (data & 1<<shift) ? 1 : 0;
+}
+
+static int tps6507x_pmic_enable(struct regulator_dev *dev)
+{
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int rid = rdev_get_id(dev);
+ u8 shift;
+
+ if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
+ return -EINVAL;
+
+ shift = TPS6507X_MAX_REG_ID - rid;
+ return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
+}
+
+static int tps6507x_pmic_disable(struct regulator_dev *dev)
+{
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int rid = rdev_get_id(dev);
+ u8 shift;
+
+ if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
+ return -EINVAL;
+
+ shift = TPS6507X_MAX_REG_ID - rid;
+ return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1,
+ 1 << shift);
+}
+
+static int tps6507x_pmic_get_voltage_sel(struct regulator_dev *dev)
+{
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int data, rid = rdev_get_id(dev);
+ u8 reg, mask;
+
+ switch (rid) {
+ case TPS6507X_DCDC_1:
+ reg = TPS6507X_REG_DEFDCDC1;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_DCDC_2:
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC2_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC2_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_DCDC_3:
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC3_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC3_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_LDO_1:
+ reg = TPS6507X_REG_LDO_CTRL1;
+ mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
+ break;
+ case TPS6507X_LDO_2:
+ reg = TPS6507X_REG_DEFLDO2;
+ mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ data = tps6507x_pmic_reg_read(tps, reg);
+ if (data < 0)
+ return data;
+
+ data &= mask;
+ return data;
+}
+
+static int tps6507x_pmic_set_voltage_sel(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int data, rid = rdev_get_id(dev);
+ u8 reg, mask;
+
+ switch (rid) {
+ case TPS6507X_DCDC_1:
+ reg = TPS6507X_REG_DEFDCDC1;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_DCDC_2:
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC2_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC2_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_DCDC_3:
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC3_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC3_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_LDO_1:
+ reg = TPS6507X_REG_LDO_CTRL1;
+ mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
+ break;
+ case TPS6507X_LDO_2:
+ reg = TPS6507X_REG_DEFLDO2;
+ mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ data = tps6507x_pmic_reg_read(tps, reg);
+ if (data < 0)
+ return data;
+
+ data &= ~mask;
+ data |= selector;
+
+ return tps6507x_pmic_reg_write(tps, reg, data);
+}
+
+static const struct regulator_ops tps6507x_pmic_ops = {
+ .is_enabled = tps6507x_pmic_is_enabled,
+ .enable = tps6507x_pmic_enable,
+ .disable = tps6507x_pmic_disable,
+ .get_voltage_sel = tps6507x_pmic_get_voltage_sel,
+ .set_voltage_sel = tps6507x_pmic_set_voltage_sel,
+ .list_voltage = regulator_list_voltage_table,
+ .map_voltage = regulator_map_voltage_ascend,
+};
+
+static int tps6507x_pmic_of_parse_cb(struct device_node *np,
+ const struct regulator_desc *desc,
+ struct regulator_config *config)
+{
+ struct tps6507x_pmic *tps = config->driver_data;
+ struct tps_info *info = tps->info[desc->id];
+ u32 prop;
+ int ret;
+
+ ret = of_property_read_u32(np, "ti,defdcdc_default", &prop);
+ if (!ret)
+ info->defdcdc_default = prop;
+
+ return 0;
+}
+
+static int tps6507x_pmic_probe(struct platform_device *pdev)
+{
+ struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
+ struct tps_info *info = &tps6507x_pmic_regs[0];
+ struct regulator_config config = { };
+ struct regulator_init_data *init_data = NULL;
+ struct regulator_dev *rdev;
+ struct tps6507x_pmic *tps;
+ struct tps6507x_board *tps_board;
+ int i;
+
+ /**
+ * tps_board points to pmic related constants
+ * coming from the board-evm file.
+ */
+
+ tps_board = dev_get_platdata(tps6507x_dev->dev);
+ if (tps_board)
+ init_data = tps_board->tps6507x_pmic_init_data;
+
+ tps = devm_kzalloc(&pdev->dev, sizeof(*tps), GFP_KERNEL);
+ if (!tps)
+ return -ENOMEM;
+
+ mutex_init(&tps->io_lock);
+
+ /* common for all regulators */
+ tps->mfd = tps6507x_dev;
+
+ for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++) {
+ /* Register the regulators */
+ tps->info[i] = info;
+ if (init_data && init_data[i].driver_data) {
+ struct tps6507x_reg_platform_data *data =
+ init_data[i].driver_data;
+ info->defdcdc_default = data->defdcdc_default;
+ }
+
+ tps->desc[i].name = info->name;
+ tps->desc[i].of_match = of_match_ptr(info->name);
+ tps->desc[i].regulators_node = of_match_ptr("regulators");
+ tps->desc[i].of_parse_cb = tps6507x_pmic_of_parse_cb;
+ tps->desc[i].id = i;
+ tps->desc[i].n_voltages = info->table_len;
+ tps->desc[i].volt_table = info->table;
+ tps->desc[i].ops = &tps6507x_pmic_ops;
+ tps->desc[i].type = REGULATOR_VOLTAGE;
+ tps->desc[i].owner = THIS_MODULE;
+
+ config.dev = tps6507x_dev->dev;
+ config.init_data = init_data;
+ config.driver_data = tps;
+
+ rdev = devm_regulator_register(&pdev->dev, &tps->desc[i],
+ &config);
+ if (IS_ERR(rdev)) {
+ dev_err(tps6507x_dev->dev,
+ "failed to register %s regulator\n",
+ pdev->name);
+ return PTR_ERR(rdev);
+ }
+ }
+
+ tps6507x_dev->pmic = tps;
+ platform_set_drvdata(pdev, tps6507x_dev);
+
+ return 0;
+}
+
+static struct platform_driver tps6507x_pmic_driver = {
+ .driver = {
+ .name = "tps6507x-pmic",
+ },
+ .probe = tps6507x_pmic_probe,
+};
+
+static int __init tps6507x_pmic_init(void)
+{
+ return platform_driver_register(&tps6507x_pmic_driver);
+}
+subsys_initcall(tps6507x_pmic_init);
+
+static void __exit tps6507x_pmic_cleanup(void)
+{
+ platform_driver_unregister(&tps6507x_pmic_driver);
+}
+module_exit(tps6507x_pmic_cleanup);
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("TPS6507x voltage regulator driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:tps6507x-pmic");