Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted

Pull pin control updates from Linus Walleij:
 "Core changes:

   - Use the non-blocking mux_state_try_select() in the generic MUX pin
     control back-end

   - Free pin maps on pinctrl_generic_to_map() failure in the core
     helpers

  New hardware pin control:

   - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC
     (this is for the low power audio, LPASS = Low Power Audio SubSystem
     portions)

   - Upboard support on top of the Intel pin controller

   - Apple T6030 and T6031 support (just compatible strings)

   - Samsung Exynos 8855 SoC

   - Mediatek MT6858 SoC

   - Rockchip RK3308B and RV1106 SoCs

   - Airoha EN7523 and AN7563 SoCs

  Improvements:

   - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable

   - Qualcomm improvements on top of the Qualcomm PDC (power domain
     controller) irqchip improvements from tglx:s tree

   - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups

   - The NPCM8xx driver has been put into shape fixing many pin and
     group definitions

   - Some non-urgent Tegra 264 pin assignments are fixed up

   - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and
     pin assignments, missing features etc"

* tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits)
  dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema
  pinctrl: meson: sync some modify from A4
  pinctrl: meson: a4: Add input enable pin configuration
  pinctrl: realtek: rtd1625: remove unused group name spdif_sel
  pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13
  dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema
  Revert "Merge branch 'ib-rsk7204' into devel"
  pinctrl: rockchip: Add RV1106 pinctrl support
  dt-bindings: pinctrl: rockchip: Add RV1106 compatible
  pinctrl: rockchip: Decode drive strength in the get function
  pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable
  pinctrl: airoha: add support of an7563 SoC
  dt-bindings: pinctrl: airoha: add support of an7563 pin controller
  pinctrl: airoha: try to find chip scu node by phandle first
  pinctrl: airoha: add support of en7523 SoC
  dt-bindings: pinctrl: airoha: add support of en7523 pin controller
  pinctrl: airoha: an7583: add support for olt pinmux
  pinctrl: airoha: an7583: add support for pon_alt pinmux
  pinctrl: airoha: an7583: add support for npu_uart pinmux
  dt-bindings: pinctrl: airoha: an7583: add missed features
  ...

1 files changed, 284 insertions, 0 deletions

diff --git a/drivers/hid/hid-uclogic-params.h b/drivers/hid/hid-uclogic-params.h
new file mode 100644
index 000000000..c84ff17fb
--- /dev/null
+++ b/drivers/hid/hid-uclogic-params.h
@@ -0,0 +1,284 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ *  HID driver for UC-Logic devices not fully compliant with HID standard
+ *  - tablet initialization and parameter retrieval
+ *
+ *  Copyright (c) 2018 Nikolai Kondrashov
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#ifndef _HID_UCLOGIC_PARAMS_H
+#define _HID_UCLOGIC_PARAMS_H
+
+#include <linux/usb.h>
+#include <linux/hid.h>
+#include <linux/list.h>
+
+#define UCLOGIC_MOUSE_FRAME_QUIRK	BIT(0)
+#define UCLOGIC_BATTERY_QUIRK		BIT(1)
+
+/* Types of pen in-range reporting */
+enum uclogic_params_pen_inrange {
+	/* Normal reports: zero - out of proximity, one - in proximity */
+	UCLOGIC_PARAMS_PEN_INRANGE_NORMAL = 0,
+	/* Inverted reports: zero - in proximity, one - out of proximity */
+	UCLOGIC_PARAMS_PEN_INRANGE_INVERTED,
+	/* No reports */
+	UCLOGIC_PARAMS_PEN_INRANGE_NONE,
+};
+
+/* Types of frames */
+enum uclogic_params_frame_type {
+	/* Frame with buttons */
+	UCLOGIC_PARAMS_FRAME_BUTTONS = 0,
+	/* Frame with buttons and a dial */
+	UCLOGIC_PARAMS_FRAME_DIAL,
+	/* Frame with buttons and a mouse (shaped as a dial + touchpad) */
+	UCLOGIC_PARAMS_FRAME_MOUSE,
+};
+
+/*
+ * Pen report's subreport data.
+ */
+struct uclogic_params_pen_subreport {
+	/*
+	 * The value of the second byte of the pen report indicating this
+	 * subreport. If zero, the subreport should be considered invalid and
+	 * not matched.
+	 */
+	__u8 value;
+
+	/*
+	 * The ID to be assigned to the report, if the second byte of the pen
+	 * report is equal to "value". Only valid if "value" is not zero.
+	 */
+	__u8 id;
+};
+
+/*
+ * Tablet interface's pen input parameters.
+ *
+ * Must use declarative (descriptive) language, not imperative, to simplify
+ * understanding and maintain consistency.
+ *
+ * Noop (preserving functionality) when filled with zeroes.
+ */
+struct uclogic_params_pen {
+	/*
+	 * True if pen usage is invalid for this interface and should be
+	 * ignored, false otherwise.
+	 */
+	bool usage_invalid;
+	/*
+	 * Pointer to report descriptor part describing the pen inputs.
+	 * Allocated with kmalloc. NULL if the part is not specified.
+	 */
+	const __u8 *desc_ptr;
+	/*
+	 * Size of the report descriptor.
+	 * Only valid, if "desc_ptr" is not NULL.
+	 */
+	unsigned int desc_size;
+	/* Report ID, if reports should be tweaked, zero if not */
+	unsigned int id;
+	/* The list of subreports, only valid if "id" is not zero */
+	struct uclogic_params_pen_subreport subreport_list[3];
+	/* Type of in-range reporting, only valid if "id" is not zero */
+	enum uclogic_params_pen_inrange inrange;
+	/*
+	 * True, if reports include fragmented high resolution coords, with
+	 * high-order X and then Y bytes following the pressure field.
+	 * Only valid if "id" is not zero.
+	 */
+	bool fragmented_hires;
+	/*
+	 * True if the pen reports tilt in bytes at offset 10 (X) and 11 (Y),
+	 * and the Y tilt direction is flipped.
+	 * Only valid if "id" is not zero.
+	 */
+	bool tilt_y_flipped;
+	/*
+	 * True, if reports include fragmented high resolution X coords.
+	 * This moves bytes 10-11 to the LSB of the X coordinate.
+	 */
+	bool fragmented_hires2;
+};
+
+/*
+ * Parameters of frame control inputs of a tablet interface.
+ *
+ * Must use declarative (descriptive) language, not imperative, to simplify
+ * understanding and maintain consistency.
+ *
+ * Noop (preserving functionality) when filled with zeroes.
+ */
+struct uclogic_params_frame {
+	/*
+	 * Pointer to report descriptor part describing the frame inputs.
+	 * Allocated with kmalloc. NULL if the part is not specified.
+	 */
+	const __u8 *desc_ptr;
+	/*
+	 * Size of the report descriptor.
+	 * Only valid, if "desc_ptr" is not NULL.
+	 */
+	unsigned int desc_size;
+	/*
+	 * Report ID, if reports should be tweaked, zero if not.
+	 */
+	unsigned int id;
+	/*
+	 * The suffix to add to the input device name, if not NULL.
+	 */
+	const char *suffix;
+	/*
+	 * Number of the least-significant bit of the 2-bit state of a rotary
+	 * encoder, in the report. Cannot point to a 2-bit field crossing a
+	 * byte boundary. Zero if not present. Only valid if "id" is not zero.
+	 */
+	unsigned int re_lsb;
+	/*
+	 * Offset of the Wacom-style device ID byte in the report, to be set
+	 * to pad device ID (0xf), for compatibility with Wacom drivers. Zero
+	 * if no changes to the report should be made. The ID byte will be set
+	 * to zero whenever the byte pointed by "touch_byte" is zero, if
+	 * the latter is valid. Only valid if "id" is not zero.
+	 */
+	unsigned int dev_id_byte;
+	/*
+	 * Offset of the touch ring/strip state byte, in the report.
+	 * Zero if not present. If dev_id_byte is also valid and non-zero,
+	 * then the device ID byte will be cleared when the byte pointed to by
+	 * this offset is zero. Only valid if "id" is not zero.
+	 */
+	unsigned int touch_byte;
+	/*
+	 * The value to anchor the reversed touch ring/strip reports at.
+	 * I.e. one, if the reports should be flipped without offset.
+	 * Zero if no reversal should be done.
+	 * Only valid if "touch_byte" is valid and not zero.
+	 */
+	__s8 touch_flip_at;
+	/*
+	 * Maximum value of the touch ring/strip report around which the value
+	 * should be wrapped when flipping according to "touch_flip_at".
+	 * The minimum valid value is considered to be one, with zero being
+	 * out-of-proximity (finger lift) value.
+	 * Only valid if "touch_flip_at" is valid and not zero.
+	 */
+	__s8 touch_max;
+	/*
+	 * Offset of the bitmap dial byte, in the report. Zero if not present.
+	 * Only valid if "id" is not zero. A bitmap dial sends reports with a
+	 * dedicated bit per direction: 1 means clockwise rotation, 2 means
+	 * counterclockwise, as opposed to the normal 1 and -1.
+	 */
+	unsigned int bitmap_dial_byte;
+	/*
+	 * Destination offset for the second bitmap dial byte, if the tablet
+	 * supports a second dial at all.
+	 */
+	unsigned int bitmap_second_dial_destination_byte;
+};
+
+/*
+ * List of works to be performed when a certain raw event is received.
+ */
+struct uclogic_raw_event_hook {
+	struct hid_device *hdev;
+	__u8 *event;
+	size_t size;
+	struct work_struct work;
+	struct list_head list;
+};
+
+/*
+ * Tablet interface report parameters.
+ *
+ * Must use declarative (descriptive) language, not imperative, to simplify
+ * understanding and maintain consistency.
+ *
+ * When filled with zeros represents a "noop" configuration - passes all
+ * reports unchanged and lets the generic HID driver handle everything.
+ *
+ * The resulting device report descriptor is assembled from all the report
+ * descriptor parts referenced by the structure. No order of assembly should
+ * be assumed. The structure represents original device report descriptor if
+ * all the parts are NULL.
+ */
+struct uclogic_params {
+	/*
+	 * True if the whole interface is invalid, false otherwise.
+	 */
+	bool invalid;
+	/*
+	 * Pointer to the common part of the replacement report descriptor,
+	 * allocated with kmalloc. NULL if no common part is needed.
+	 * Only valid, if "invalid" is false.
+	 */
+	const __u8 *desc_ptr;
+	/*
+	 * Size of the common part of the replacement report descriptor.
+	 * Only valid, if "desc_ptr" is valid and not NULL.
+	 */
+	unsigned int desc_size;
+	/*
+	 * Pen parameters and optional report descriptor part.
+	 * Only valid, if "invalid" is false.
+	 */
+	struct uclogic_params_pen pen;
+	/*
+	 * The list of frame control parameters and optional report descriptor
+	 * parts. Only valid, if "invalid" is false.
+	 */
+	struct uclogic_params_frame frame_list[3];
+	/*
+	 * List of event hooks.
+	 */
+	struct uclogic_raw_event_hook *event_hooks;
+};
+
+/* Driver data */
+struct uclogic_drvdata {
+	/* Interface parameters */
+	struct uclogic_params params;
+	/* Pointer to the replacement report descriptor. NULL if none. */
+	const __u8 *desc_ptr;
+	/*
+	 * Size of the replacement report descriptor.
+	 * Only valid if desc_ptr is not NULL
+	 */
+	unsigned int desc_size;
+	/* Pen input device */
+	struct input_dev *pen_input;
+	/* In-range timer */
+	struct timer_list inrange_timer;
+	/* Last rotary encoder state, or U8_MAX for none */
+	u8 re_state;
+	/* Device quirks */
+	unsigned long quirks;
+};
+
+/* Initialize a tablet interface and discover its parameters */
+extern int uclogic_params_init(struct uclogic_params *params,
+				struct hid_device *hdev);
+
+/* Get a replacement report descriptor for a tablet's interface. */
+extern int uclogic_params_get_desc(const struct uclogic_params *params,
+					const __u8 **pdesc,
+					unsigned int *psize);
+
+/* Free resources used by tablet interface's parameters */
+extern void uclogic_params_cleanup(struct uclogic_params *params);
+
+/* Dump tablet interface parameters with hid_dbg() */
+extern void uclogic_params_hid_dbg(const struct hid_device *hdev,
+					const struct uclogic_params *params);
+
+#endif /* _HID_UCLOGIC_PARAMS_H */