From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/input/touchscreen/sun4i-ts.c | 413 +++++++++++++++++++++++++++++++++++ 1 file changed, 413 insertions(+) create mode 100644 drivers/input/touchscreen/sun4i-ts.c (limited to 'drivers/input/touchscreen/sun4i-ts.c') diff --git a/drivers/input/touchscreen/sun4i-ts.c b/drivers/input/touchscreen/sun4i-ts.c new file mode 100644 index 000000000..73eb8f80b --- /dev/null +++ b/drivers/input/touchscreen/sun4i-ts.c @@ -0,0 +1,413 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Allwinner sunxi resistive touchscreen controller driver + * + * Copyright (C) 2013 - 2014 Hans de Goede + * + * The hwmon parts are based on work by Corentin LABBE which is: + * Copyright (C) 2013 Corentin LABBE + */ + +/* + * The sun4i-ts controller is capable of detecting a second touch, but when a + * second touch is present then the accuracy becomes so bad the reported touch + * location is not useable. + * + * The original android driver contains some complicated heuristics using the + * aprox. distance between the 2 touches to see if the user is making a pinch + * open / close movement, and then reports emulated multi-touch events around + * the last touch coordinate (as the dual-touch coordinates are worthless). + * + * These kinds of heuristics are just asking for trouble (and don't belong + * in the kernel). So this driver offers straight forward, reliable single + * touch functionality only. + * + * s.a. A20 User Manual "1.15 TP" (Documentation/arm/sunxi.rst) + * (looks like the description in the A20 User Manual v1.3 is better + * than the one in the A10 User Manual v.1.5) + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define TP_CTRL0 0x00 +#define TP_CTRL1 0x04 +#define TP_CTRL2 0x08 +#define TP_CTRL3 0x0c +#define TP_INT_FIFOC 0x10 +#define TP_INT_FIFOS 0x14 +#define TP_TPR 0x18 +#define TP_CDAT 0x1c +#define TEMP_DATA 0x20 +#define TP_DATA 0x24 + +/* TP_CTRL0 bits */ +#define ADC_FIRST_DLY(x) ((x) << 24) /* 8 bits */ +#define ADC_FIRST_DLY_MODE(x) ((x) << 23) +#define ADC_CLK_SEL(x) ((x) << 22) +#define ADC_CLK_DIV(x) ((x) << 20) /* 3 bits */ +#define FS_DIV(x) ((x) << 16) /* 4 bits */ +#define T_ACQ(x) ((x) << 0) /* 16 bits */ + +/* TP_CTRL1 bits */ +#define STYLUS_UP_DEBOUN(x) ((x) << 12) /* 8 bits */ +#define STYLUS_UP_DEBOUN_EN(x) ((x) << 9) +#define TOUCH_PAN_CALI_EN(x) ((x) << 6) +#define TP_DUAL_EN(x) ((x) << 5) +#define TP_MODE_EN(x) ((x) << 4) +#define TP_ADC_SELECT(x) ((x) << 3) +#define ADC_CHAN_SELECT(x) ((x) << 0) /* 3 bits */ + +/* on sun6i, bits 3~6 are left shifted by 1 to 4~7 */ +#define SUN6I_TP_MODE_EN(x) ((x) << 5) + +/* TP_CTRL2 bits */ +#define TP_SENSITIVE_ADJUST(x) ((x) << 28) /* 4 bits */ +#define TP_MODE_SELECT(x) ((x) << 26) /* 2 bits */ +#define PRE_MEA_EN(x) ((x) << 24) +#define PRE_MEA_THRE_CNT(x) ((x) << 0) /* 24 bits */ + +/* TP_CTRL3 bits */ +#define FILTER_EN(x) ((x) << 2) +#define FILTER_TYPE(x) ((x) << 0) /* 2 bits */ + +/* TP_INT_FIFOC irq and fifo mask / control bits */ +#define TEMP_IRQ_EN(x) ((x) << 18) +#define OVERRUN_IRQ_EN(x) ((x) << 17) +#define DATA_IRQ_EN(x) ((x) << 16) +#define TP_DATA_XY_CHANGE(x) ((x) << 13) +#define FIFO_TRIG(x) ((x) << 8) /* 5 bits */ +#define DATA_DRQ_EN(x) ((x) << 7) +#define FIFO_FLUSH(x) ((x) << 4) +#define TP_UP_IRQ_EN(x) ((x) << 1) +#define TP_DOWN_IRQ_EN(x) ((x) << 0) + +/* TP_INT_FIFOS irq and fifo status bits */ +#define TEMP_DATA_PENDING BIT(18) +#define FIFO_OVERRUN_PENDING BIT(17) +#define FIFO_DATA_PENDING BIT(16) +#define TP_IDLE_FLG BIT(2) +#define TP_UP_PENDING BIT(1) +#define TP_DOWN_PENDING BIT(0) + +/* TP_TPR bits */ +#define TEMP_ENABLE(x) ((x) << 16) +#define TEMP_PERIOD(x) ((x) << 0) /* t = x * 256 * 16 / clkin */ + +struct sun4i_ts_data { + struct device *dev; + struct input_dev *input; + void __iomem *base; + unsigned int irq; + bool ignore_fifo_data; + int temp_data; + int temp_offset; + int temp_step; +}; + +static void sun4i_ts_irq_handle_input(struct sun4i_ts_data *ts, u32 reg_val) +{ + u32 x, y; + + if (reg_val & FIFO_DATA_PENDING) { + x = readl(ts->base + TP_DATA); + y = readl(ts->base + TP_DATA); + /* The 1st location reported after an up event is unreliable */ + if (!ts->ignore_fifo_data) { + input_report_abs(ts->input, ABS_X, x); + input_report_abs(ts->input, ABS_Y, y); + /* + * The hardware has a separate down status bit, but + * that gets set before we get the first location, + * resulting in reporting a click on the old location. + */ + input_report_key(ts->input, BTN_TOUCH, 1); + input_sync(ts->input); + } else { + ts->ignore_fifo_data = false; + } + } + + if (reg_val & TP_UP_PENDING) { + ts->ignore_fifo_data = true; + input_report_key(ts->input, BTN_TOUCH, 0); + input_sync(ts->input); + } +} + +static irqreturn_t sun4i_ts_irq(int irq, void *dev_id) +{ + struct sun4i_ts_data *ts = dev_id; + u32 reg_val; + + reg_val = readl(ts->base + TP_INT_FIFOS); + + if (reg_val & TEMP_DATA_PENDING) + ts->temp_data = readl(ts->base + TEMP_DATA); + + if (ts->input) + sun4i_ts_irq_handle_input(ts, reg_val); + + writel(reg_val, ts->base + TP_INT_FIFOS); + + return IRQ_HANDLED; +} + +static int sun4i_ts_open(struct input_dev *dev) +{ + struct sun4i_ts_data *ts = input_get_drvdata(dev); + + /* Flush, set trig level to 1, enable temp, data and up irqs */ + writel(TEMP_IRQ_EN(1) | DATA_IRQ_EN(1) | FIFO_TRIG(1) | FIFO_FLUSH(1) | + TP_UP_IRQ_EN(1), ts->base + TP_INT_FIFOC); + + return 0; +} + +static void sun4i_ts_close(struct input_dev *dev) +{ + struct sun4i_ts_data *ts = input_get_drvdata(dev); + + /* Deactivate all input IRQs */ + writel(TEMP_IRQ_EN(1), ts->base + TP_INT_FIFOC); +} + +static int sun4i_get_temp(const struct sun4i_ts_data *ts, int *temp) +{ + /* No temp_data until the first irq */ + if (ts->temp_data == -1) + return -EAGAIN; + + *temp = ts->temp_data * ts->temp_step - ts->temp_offset; + + return 0; +} + +static int sun4i_get_tz_temp(struct thermal_zone_device *tz, int *temp) +{ + return sun4i_get_temp(tz->devdata, temp); +} + +static const struct thermal_zone_device_ops sun4i_ts_tz_ops = { + .get_temp = sun4i_get_tz_temp, +}; + +static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct sun4i_ts_data *ts = dev_get_drvdata(dev); + int temp; + int error; + + error = sun4i_get_temp(ts, &temp); + if (error) + return error; + + return sprintf(buf, "%d\n", temp); +} + +static ssize_t show_temp_label(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + return sprintf(buf, "SoC temperature\n"); +} + +static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL); +static DEVICE_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL); + +static struct attribute *sun4i_ts_attrs[] = { + &dev_attr_temp1_input.attr, + &dev_attr_temp1_label.attr, + NULL +}; +ATTRIBUTE_GROUPS(sun4i_ts); + +static int sun4i_ts_probe(struct platform_device *pdev) +{ + struct sun4i_ts_data *ts; + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + struct device *hwmon; + struct thermal_zone_device *thermal; + int error; + u32 reg; + bool ts_attached; + u32 tp_sensitive_adjust = 15; + u32 filter_type = 1; + + ts = devm_kzalloc(dev, sizeof(struct sun4i_ts_data), GFP_KERNEL); + if (!ts) + return -ENOMEM; + + ts->dev = dev; + ts->ignore_fifo_data = true; + ts->temp_data = -1; + if (of_device_is_compatible(np, "allwinner,sun6i-a31-ts")) { + /* Allwinner SDK has temperature (C) = (value / 6) - 271 */ + ts->temp_offset = 271000; + ts->temp_step = 167; + } else if (of_device_is_compatible(np, "allwinner,sun4i-a10-ts")) { + /* + * The A10 temperature sensor has quite a wide spread, these + * parameters are based on the averaging of the calibration + * results of 4 completely different boards, with a spread of + * temp_step from 0.096 - 0.170 and temp_offset from 176 - 331. + */ + ts->temp_offset = 257000; + ts->temp_step = 133; + } else { + /* + * The user manuals do not contain the formula for calculating + * the temperature. The formula used here is from the AXP209, + * which is designed by X-Powers, an affiliate of Allwinner: + * + * temperature (C) = (value * 0.1) - 144.7 + * + * Allwinner does not have any documentation whatsoever for + * this hardware. Moreover, it is claimed that the sensor + * is inaccurate and cannot work properly. + */ + ts->temp_offset = 144700; + ts->temp_step = 100; + } + + ts_attached = of_property_read_bool(np, "allwinner,ts-attached"); + if (ts_attached) { + ts->input = devm_input_allocate_device(dev); + if (!ts->input) + return -ENOMEM; + + ts->input->name = pdev->name; + ts->input->phys = "sun4i_ts/input0"; + ts->input->open = sun4i_ts_open; + ts->input->close = sun4i_ts_close; + ts->input->id.bustype = BUS_HOST; + ts->input->id.vendor = 0x0001; + ts->input->id.product = 0x0001; + ts->input->id.version = 0x0100; + ts->input->evbit[0] = BIT(EV_SYN) | BIT(EV_KEY) | BIT(EV_ABS); + __set_bit(BTN_TOUCH, ts->input->keybit); + input_set_abs_params(ts->input, ABS_X, 0, 4095, 0, 0); + input_set_abs_params(ts->input, ABS_Y, 0, 4095, 0, 0); + input_set_drvdata(ts->input, ts); + } + + ts->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(ts->base)) + return PTR_ERR(ts->base); + + ts->irq = platform_get_irq(pdev, 0); + error = devm_request_irq(dev, ts->irq, sun4i_ts_irq, 0, "sun4i-ts", ts); + if (error) + return error; + + /* + * Select HOSC clk, clkin = clk / 6, adc samplefreq = clkin / 8192, + * t_acq = clkin / (16 * 64) + */ + writel(ADC_CLK_SEL(0) | ADC_CLK_DIV(2) | FS_DIV(7) | T_ACQ(63), + ts->base + TP_CTRL0); + + /* + * tp_sensitive_adjust is an optional property + * tp_mode = 0 : only x and y coordinates, as we don't use dual touch + */ + of_property_read_u32(np, "allwinner,tp-sensitive-adjust", + &tp_sensitive_adjust); + writel(TP_SENSITIVE_ADJUST(tp_sensitive_adjust) | TP_MODE_SELECT(0), + ts->base + TP_CTRL2); + + /* + * Enable median and averaging filter, optional property for + * filter type. + */ + of_property_read_u32(np, "allwinner,filter-type", &filter_type); + writel(FILTER_EN(1) | FILTER_TYPE(filter_type), ts->base + TP_CTRL3); + + /* Enable temperature measurement, period 1953 (2 seconds) */ + writel(TEMP_ENABLE(1) | TEMP_PERIOD(1953), ts->base + TP_TPR); + + /* + * Set stylus up debounce to aprox 10 ms, enable debounce, and + * finally enable tp mode. + */ + reg = STYLUS_UP_DEBOUN(5) | STYLUS_UP_DEBOUN_EN(1); + if (of_device_is_compatible(np, "allwinner,sun6i-a31-ts")) + reg |= SUN6I_TP_MODE_EN(1); + else + reg |= TP_MODE_EN(1); + writel(reg, ts->base + TP_CTRL1); + + /* + * The thermal core does not register hwmon devices for DT-based + * thermal zone sensors, such as this one. + */ + hwmon = devm_hwmon_device_register_with_groups(ts->dev, "sun4i_ts", + ts, sun4i_ts_groups); + if (IS_ERR(hwmon)) + return PTR_ERR(hwmon); + + thermal = devm_thermal_of_zone_register(ts->dev, 0, ts, + &sun4i_ts_tz_ops); + if (IS_ERR(thermal)) + return PTR_ERR(thermal); + + writel(TEMP_IRQ_EN(1), ts->base + TP_INT_FIFOC); + + if (ts_attached) { + error = input_register_device(ts->input); + if (error) { + writel(0, ts->base + TP_INT_FIFOC); + return error; + } + } + + platform_set_drvdata(pdev, ts); + return 0; +} + +static int sun4i_ts_remove(struct platform_device *pdev) +{ + struct sun4i_ts_data *ts = platform_get_drvdata(pdev); + + /* Explicit unregister to avoid open/close changing the imask later */ + if (ts->input) + input_unregister_device(ts->input); + + /* Deactivate all IRQs */ + writel(0, ts->base + TP_INT_FIFOC); + + return 0; +} + +static const struct of_device_id sun4i_ts_of_match[] = { + { .compatible = "allwinner,sun4i-a10-ts", }, + { .compatible = "allwinner,sun5i-a13-ts", }, + { .compatible = "allwinner,sun6i-a31-ts", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, sun4i_ts_of_match); + +static struct platform_driver sun4i_ts_driver = { + .driver = { + .name = "sun4i-ts", + .of_match_table = of_match_ptr(sun4i_ts_of_match), + }, + .probe = sun4i_ts_probe, + .remove = sun4i_ts_remove, +}; + +module_platform_driver(sun4i_ts_driver); + +MODULE_DESCRIPTION("Allwinner sun4i resistive touchscreen controller driver"); +MODULE_AUTHOR("Hans de Goede "); +MODULE_LICENSE("GPL"); -- cgit v1.2.3