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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/arizona-micsupp.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/arizona-micsupp.c')
-rw-r--r--drivers/regulator/arizona-micsupp.c402
1 files changed, 402 insertions, 0 deletions
diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c
new file mode 100644
index 000000000..596ecd804
--- /dev/null
+++ b/drivers/regulator/arizona-micsupp.c
@@ -0,0 +1,402 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// arizona-micsupp.c -- Microphone supply for Arizona devices
+//
+// Copyright 2012 Wolfson Microelectronics PLC.
+//
+// Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <sound/soc.h>
+
+#include <linux/mfd/arizona/core.h>
+#include <linux/mfd/arizona/pdata.h>
+#include <linux/mfd/arizona/registers.h>
+
+#include <linux/mfd/madera/core.h>
+#include <linux/mfd/madera/pdata.h>
+#include <linux/mfd/madera/registers.h>
+
+#include <linux/regulator/arizona-micsupp.h>
+
+struct arizona_micsupp {
+ struct regulator_dev *regulator;
+ struct regmap *regmap;
+ struct snd_soc_dapm_context **dapm;
+ const struct regulator_desc *desc;
+ struct device *dev;
+
+ struct regulator_consumer_supply supply;
+ struct regulator_init_data init_data;
+
+ struct work_struct check_cp_work;
+};
+
+static void arizona_micsupp_check_cp(struct work_struct *work)
+{
+ struct arizona_micsupp *micsupp =
+ container_of(work, struct arizona_micsupp, check_cp_work);
+ struct snd_soc_dapm_context *dapm = *micsupp->dapm;
+ struct snd_soc_component *component;
+ const struct regulator_desc *desc = micsupp->desc;
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(micsupp->regmap, desc->enable_reg, &val);
+ if (ret != 0) {
+ dev_err(micsupp->dev,
+ "Failed to read CP state: %d\n", ret);
+ return;
+ }
+
+ if (dapm) {
+ component = snd_soc_dapm_to_component(dapm);
+
+ if ((val & (desc->enable_mask | desc->bypass_mask)) ==
+ desc->enable_mask)
+ snd_soc_component_force_enable_pin(component,
+ "MICSUPP");
+ else
+ snd_soc_component_disable_pin(component, "MICSUPP");
+
+ snd_soc_dapm_sync(dapm);
+ }
+}
+
+static int arizona_micsupp_enable(struct regulator_dev *rdev)
+{
+ struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
+ int ret;
+
+ ret = regulator_enable_regmap(rdev);
+
+ if (ret == 0)
+ schedule_work(&micsupp->check_cp_work);
+
+ return ret;
+}
+
+static int arizona_micsupp_disable(struct regulator_dev *rdev)
+{
+ struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
+ int ret;
+
+ ret = regulator_disable_regmap(rdev);
+ if (ret == 0)
+ schedule_work(&micsupp->check_cp_work);
+
+ return ret;
+}
+
+static int arizona_micsupp_set_bypass(struct regulator_dev *rdev, bool ena)
+{
+ struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
+ int ret;
+
+ ret = regulator_set_bypass_regmap(rdev, ena);
+ if (ret == 0)
+ schedule_work(&micsupp->check_cp_work);
+
+ return ret;
+}
+
+static const struct regulator_ops arizona_micsupp_ops = {
+ .enable = arizona_micsupp_enable,
+ .disable = arizona_micsupp_disable,
+ .is_enabled = regulator_is_enabled_regmap,
+
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_linear_range,
+
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+
+ .get_bypass = regulator_get_bypass_regmap,
+ .set_bypass = arizona_micsupp_set_bypass,
+};
+
+static const struct linear_range arizona_micsupp_ranges[] = {
+ REGULATOR_LINEAR_RANGE(1700000, 0, 0x1e, 50000),
+ REGULATOR_LINEAR_RANGE(3300000, 0x1f, 0x1f, 0),
+};
+
+static const struct regulator_desc arizona_micsupp = {
+ .name = "MICVDD",
+ .supply_name = "CPVDD",
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = 32,
+ .ops = &arizona_micsupp_ops,
+
+ .vsel_reg = ARIZONA_LDO2_CONTROL_1,
+ .vsel_mask = ARIZONA_LDO2_VSEL_MASK,
+ .enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
+ .enable_mask = ARIZONA_CPMIC_ENA,
+ .bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
+ .bypass_mask = ARIZONA_CPMIC_BYPASS,
+
+ .linear_ranges = arizona_micsupp_ranges,
+ .n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ranges),
+
+ .enable_time = 3000,
+
+ .owner = THIS_MODULE,
+};
+
+static const struct linear_range arizona_micsupp_ext_ranges[] = {
+ REGULATOR_LINEAR_RANGE(900000, 0, 0x14, 25000),
+ REGULATOR_LINEAR_RANGE(1500000, 0x15, 0x27, 100000),
+};
+
+static const struct regulator_desc arizona_micsupp_ext = {
+ .name = "MICVDD",
+ .supply_name = "CPVDD",
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = 40,
+ .ops = &arizona_micsupp_ops,
+
+ .vsel_reg = ARIZONA_LDO2_CONTROL_1,
+ .vsel_mask = ARIZONA_LDO2_VSEL_MASK,
+ .enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
+ .enable_mask = ARIZONA_CPMIC_ENA,
+ .bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
+ .bypass_mask = ARIZONA_CPMIC_BYPASS,
+
+ .linear_ranges = arizona_micsupp_ext_ranges,
+ .n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ext_ranges),
+
+ .enable_time = 3000,
+
+ .owner = THIS_MODULE,
+};
+
+static const struct regulator_init_data arizona_micsupp_default = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS |
+ REGULATOR_CHANGE_VOLTAGE |
+ REGULATOR_CHANGE_BYPASS,
+ .min_uV = 1700000,
+ .max_uV = 3300000,
+ },
+
+ .num_consumer_supplies = 1,
+};
+
+static const struct regulator_init_data arizona_micsupp_ext_default = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS |
+ REGULATOR_CHANGE_VOLTAGE |
+ REGULATOR_CHANGE_BYPASS,
+ .min_uV = 900000,
+ .max_uV = 3300000,
+ },
+
+ .num_consumer_supplies = 1,
+};
+
+static const struct regulator_desc madera_micsupp = {
+ .name = "MICVDD",
+ .supply_name = "CPVDD1",
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = 40,
+ .ops = &arizona_micsupp_ops,
+ .vsel_reg = MADERA_LDO2_CONTROL_1,
+ .vsel_mask = MADERA_LDO2_VSEL_MASK,
+ .enable_reg = MADERA_MIC_CHARGE_PUMP_1,
+ .enable_mask = MADERA_CPMIC_ENA,
+ .bypass_reg = MADERA_MIC_CHARGE_PUMP_1,
+ .bypass_mask = MADERA_CPMIC_BYPASS,
+
+ .linear_ranges = arizona_micsupp_ext_ranges,
+ .n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ext_ranges),
+
+ .enable_time = 3000,
+
+ .owner = THIS_MODULE,
+};
+
+static int arizona_micsupp_of_get_pdata(struct arizona_micsupp_pdata *pdata,
+ struct regulator_config *config,
+ const struct regulator_desc *desc)
+{
+ struct arizona_micsupp *micsupp = config->driver_data;
+ struct device_node *np;
+ struct regulator_init_data *init_data;
+
+ np = of_get_child_by_name(config->dev->of_node, "micvdd");
+
+ if (np) {
+ config->of_node = np;
+
+ init_data = of_get_regulator_init_data(config->dev, np, desc);
+
+ if (init_data) {
+ init_data->consumer_supplies = &micsupp->supply;
+ init_data->num_consumer_supplies = 1;
+
+ pdata->init_data = init_data;
+ }
+ }
+
+ return 0;
+}
+
+static int arizona_micsupp_common_init(struct platform_device *pdev,
+ struct arizona_micsupp *micsupp,
+ const struct regulator_desc *desc,
+ struct arizona_micsupp_pdata *pdata)
+{
+ struct regulator_config config = { };
+ int ret;
+
+ INIT_WORK(&micsupp->check_cp_work, arizona_micsupp_check_cp);
+
+ micsupp->init_data.consumer_supplies = &micsupp->supply;
+ micsupp->supply.dev_name = dev_name(micsupp->dev);
+ micsupp->desc = desc;
+
+ config.dev = micsupp->dev;
+ config.driver_data = micsupp;
+ config.regmap = micsupp->regmap;
+
+ if (IS_ENABLED(CONFIG_OF)) {
+ if (!dev_get_platdata(micsupp->dev)) {
+ ret = arizona_micsupp_of_get_pdata(pdata, &config,
+ desc);
+ if (ret < 0)
+ return ret;
+ }
+ }
+
+ if (pdata->init_data)
+ config.init_data = pdata->init_data;
+ else
+ config.init_data = &micsupp->init_data;
+
+ /* Default to regulated mode */
+ regmap_update_bits(micsupp->regmap, desc->enable_reg, desc->bypass_mask, 0);
+
+ micsupp->regulator = devm_regulator_register(&pdev->dev,
+ desc,
+ &config);
+
+ of_node_put(config.of_node);
+
+ if (IS_ERR(micsupp->regulator)) {
+ ret = PTR_ERR(micsupp->regulator);
+ dev_err(micsupp->dev, "Failed to register mic supply: %d\n",
+ ret);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, micsupp);
+
+ return 0;
+}
+
+static int arizona_micsupp_probe(struct platform_device *pdev)
+{
+ struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
+ const struct regulator_desc *desc;
+ struct arizona_micsupp *micsupp;
+
+ micsupp = devm_kzalloc(&pdev->dev, sizeof(*micsupp), GFP_KERNEL);
+ if (!micsupp)
+ return -ENOMEM;
+
+ micsupp->regmap = arizona->regmap;
+ micsupp->dapm = &arizona->dapm;
+ micsupp->dev = arizona->dev;
+
+ micsupp->supply.supply = "MICVDD";
+
+ /*
+ * Since the chip usually supplies itself we provide some
+ * default init_data for it. This will be overridden with
+ * platform data if provided.
+ */
+ switch (arizona->type) {
+ case WM5110:
+ case WM8280:
+ desc = &arizona_micsupp_ext;
+ micsupp->init_data = arizona_micsupp_ext_default;
+ break;
+ default:
+ desc = &arizona_micsupp;
+ micsupp->init_data = arizona_micsupp_default;
+ break;
+ }
+
+ return arizona_micsupp_common_init(pdev, micsupp, desc,
+ &arizona->pdata.micvdd);
+}
+
+static int madera_micsupp_probe(struct platform_device *pdev)
+{
+ struct madera *madera = dev_get_drvdata(pdev->dev.parent);
+ struct arizona_micsupp *micsupp;
+
+ micsupp = devm_kzalloc(&pdev->dev, sizeof(*micsupp), GFP_KERNEL);
+ if (!micsupp)
+ return -ENOMEM;
+
+ micsupp->regmap = madera->regmap;
+ micsupp->dapm = &madera->dapm;
+ micsupp->dev = madera->dev;
+ micsupp->init_data = arizona_micsupp_ext_default;
+
+ micsupp->supply.supply = "MICVDD";
+
+ return arizona_micsupp_common_init(pdev, micsupp, &madera_micsupp,
+ &madera->pdata.micvdd);
+}
+
+static struct platform_driver arizona_micsupp_driver = {
+ .probe = arizona_micsupp_probe,
+ .driver = {
+ .name = "arizona-micsupp",
+ },
+};
+
+static struct platform_driver madera_micsupp_driver = {
+ .probe = madera_micsupp_probe,
+ .driver = {
+ .name = "madera-micsupp",
+ },
+};
+
+static struct platform_driver * const arizona_micsupp_drivers[] = {
+ &arizona_micsupp_driver,
+ &madera_micsupp_driver,
+};
+
+static int __init arizona_micsupp_init(void)
+{
+ return platform_register_drivers(arizona_micsupp_drivers,
+ ARRAY_SIZE(arizona_micsupp_drivers));
+}
+module_init(arizona_micsupp_init);
+
+static void __exit arizona_micsupp_exit(void)
+{
+ platform_unregister_drivers(arizona_micsupp_drivers,
+ ARRAY_SIZE(arizona_micsupp_drivers));
+}
+module_exit(arizona_micsupp_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("Arizona microphone supply driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:arizona-micsupp");
+MODULE_ALIAS("platform:madera-micsupp");