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authorLinus Torvalds <torvalds@linux-foundation.org>2023-02-20 15:28:57 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2023-02-20 15:28:57 -0800
commitff0c7e18629b8bd64681313a88ce55e182c9fee6 (patch)
tree70efa650f6458514e1d7e5e3f72cc8f87fc5cf2c /drivers/input/touchscreen/zylonite-wm97xx.c
parent5b0ed5964928b0aaf0d644c17c886c7f5ea4bb3f (diff)
parenta1f925bc4fa899b3c0f2dcbc432d572c36e74e71 (diff)
downloadlinux-ff0c7e18629b8bd64681313a88ce55e182c9fee6.tar.gz
Merge tag 'arm-boardfile-remove-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC boardfile updates from Arnd Bergmann "Unused boardfile removal for 6.3 This is a follow-up to the deprecation of most of the old-style board files that was merged in linux-6.0, removing them for good. This branch is almost exclusively dead code removal based on those annotations. Some device driver removals went through separate subsystem trees, but the majority is in the same branch, in order to better handle dependencies between the patches and avoid breaking bisection. Unfortunately that leads to merge conflicts against other changes in the subsystem trees, but they should all be trivial to resolve by removing the files. See commit 7d0d3fa7339e ("Merge tag 'arm-boardfiles-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc") for the description of which machines were marked unused and are now removed. The only removals that got postponed are Terastation WXL (mv78xx0) and Jornada720 (StrongARM1100), which turned out to still have potential users" * tag 'arm-boardfile-remove-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (91 commits) mmc: omap: drop TPS65010 dependency ARM: pxa: restore mfp-pxa320.h usb: ohci-omap: avoid unused-variable warning ARM: debug: remove references in DEBUG_UART_8250_SHIFT to removed configs ARM: s3c: remove obsolete s3c-cpu-freq header MAINTAINERS: adjust SAMSUNG SOC CLOCK DRIVERS after s3c24xx support removal MAINTAINERS: update file entries after arm multi-platform rework and mach-pxa removal ARM: remove CONFIG_UNUSED_BOARD_FILES mfd: remove htc-pasic3 driver w1: remove ds1wm driver usb: remove ohci-tmio driver fbdev: remove w100fb driver fbdev: remove tmiofb driver mmc: remove tmio_mmc driver mfd: remove ucb1400 support mfd: remove toshiba tmio drivers rtc: remove v3020 driver power: remove pda_power supply driver ASoC: pxa: remove unused board support pcmcia: remove unused pxa/sa1100 drivers ...
Diffstat (limited to 'drivers/input/touchscreen/zylonite-wm97xx.c')
-rw-r--r--drivers/input/touchscreen/zylonite-wm97xx.c220
1 files changed, 0 insertions, 220 deletions
diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c
deleted file mode 100644
index a70fe4abe520..000000000000
--- a/drivers/input/touchscreen/zylonite-wm97xx.c
+++ /dev/null
@@ -1,220 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * zylonite-wm97xx.c -- Zylonite Continuous Touch screen driver
- *
- * Copyright 2004, 2007, 2008 Wolfson Microelectronics PLC.
- * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
- * Parts Copyright : Ian Molton <spyro@f2s.com>
- * Andrew Zabolotny <zap@homelink.ru>
- *
- * Notes:
- * This is a wm97xx extended touch driver supporting interrupt driven
- * and continuous operation on Marvell Zylonite development systems
- * (which have a WM9713 on board).
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/gpio/consumer.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/soc/pxa/cpu.h>
-#include <linux/wm97xx.h>
-
-#include <sound/pxa2xx-lib.h>
-
-struct continuous {
- u16 id; /* codec id */
- u8 code; /* continuous code */
- u8 reads; /* number of coord reads per read cycle */
- u32 speed; /* number of coords per second */
-};
-
-#define WM_READS(sp) ((sp / HZ) + 1)
-
-static const struct continuous cinfo[] = {
- { WM9713_ID2, 0, WM_READS(94), 94 },
- { WM9713_ID2, 1, WM_READS(120), 120 },
- { WM9713_ID2, 2, WM_READS(154), 154 },
- { WM9713_ID2, 3, WM_READS(188), 188 },
-};
-
-/* continuous speed index */
-static int sp_idx;
-
-/*
- * Pen sampling frequency (Hz) in continuous mode.
- */
-static int cont_rate = 200;
-module_param(cont_rate, int, 0);
-MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)");
-
-/*
- * Pressure readback.
- *
- * Set to 1 to read back pen down pressure
- */
-static int pressure;
-module_param(pressure, int, 0);
-MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)");
-
-/*
- * AC97 touch data slot.
- *
- * Touch screen readback data ac97 slot
- */
-static int ac97_touch_slot = 5;
-module_param(ac97_touch_slot, int, 0);
-MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number");
-
-
-/* flush AC97 slot 5 FIFO machines */
-static void wm97xx_acc_pen_up(struct wm97xx *wm)
-{
- int i;
-
- msleep(1);
-
- for (i = 0; i < 16; i++)
- pxa2xx_ac97_read_modr();
-}
-
-static int wm97xx_acc_pen_down(struct wm97xx *wm)
-{
- u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES;
- int reads = 0;
- static u16 last, tries;
-
- /* When the AC97 queue has been drained we need to allow time
- * to buffer up samples otherwise we end up spinning polling
- * for samples. The controller can't have a suitably low
- * threshold set to use the notifications it gives.
- */
- msleep(1);
-
- if (tries > 5) {
- tries = 0;
- return RC_PENUP;
- }
-
- x = pxa2xx_ac97_read_modr();
- if (x == last) {
- tries++;
- return RC_AGAIN;
- }
- last = x;
- do {
- if (reads)
- x = pxa2xx_ac97_read_modr();
- y = pxa2xx_ac97_read_modr();
- if (pressure)
- p = pxa2xx_ac97_read_modr();
-
- dev_dbg(wm->dev, "Raw coordinates: x=%x, y=%x, p=%x\n",
- x, y, p);
-
- /* are samples valid */
- if ((x & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_X ||
- (y & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_Y ||
- (p & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_PRES)
- goto up;
-
- /* coordinate is good */
- tries = 0;
- input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
- input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
- input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
- input_report_key(wm->input_dev, BTN_TOUCH, (p != 0));
- input_sync(wm->input_dev);
- reads++;
- } while (reads < cinfo[sp_idx].reads);
-up:
- return RC_PENDOWN | RC_AGAIN;
-}
-
-static int wm97xx_acc_startup(struct wm97xx *wm)
-{
- int idx;
-
- /* check we have a codec */
- if (wm->ac97 == NULL)
- return -ENODEV;
-
- /* Go you big red fire engine */
- for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) {
- if (wm->id != cinfo[idx].id)
- continue;
- sp_idx = idx;
- if (cont_rate <= cinfo[idx].speed)
- break;
- }
- wm->acc_rate = cinfo[sp_idx].code;
- wm->acc_slot = ac97_touch_slot;
- dev_info(wm->dev,
- "zylonite accelerated touchscreen driver, %d samples/sec\n",
- cinfo[sp_idx].speed);
-
- return 0;
-}
-
-static struct wm97xx_mach_ops zylonite_mach_ops = {
- .acc_enabled = 1,
- .acc_pen_up = wm97xx_acc_pen_up,
- .acc_pen_down = wm97xx_acc_pen_down,
- .acc_startup = wm97xx_acc_startup,
- .irq_gpio = WM97XX_GPIO_2,
-};
-
-static int zylonite_wm97xx_probe(struct platform_device *pdev)
-{
- struct wm97xx *wm = platform_get_drvdata(pdev);
- struct gpio_desc *gpio_touch_irq;
- int err;
-
- gpio_touch_irq = devm_gpiod_get(&pdev->dev, "touch", GPIOD_IN);
- err = PTR_ERR_OR_ZERO(gpio_touch_irq);
- if (err) {
- dev_err(&pdev->dev, "Cannot get irq gpio: %d\n", err);
- return err;
- }
-
- wm->pen_irq = gpiod_to_irq(gpio_touch_irq);
- irq_set_irq_type(wm->pen_irq, IRQ_TYPE_EDGE_BOTH);
-
- wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
- WM97XX_GPIO_POL_HIGH,
- WM97XX_GPIO_STICKY,
- WM97XX_GPIO_WAKE);
- wm97xx_config_gpio(wm, WM97XX_GPIO_2, WM97XX_GPIO_OUT,
- WM97XX_GPIO_POL_HIGH,
- WM97XX_GPIO_NOTSTICKY,
- WM97XX_GPIO_NOWAKE);
-
- return wm97xx_register_mach_ops(wm, &zylonite_mach_ops);
-}
-
-static int zylonite_wm97xx_remove(struct platform_device *pdev)
-{
- struct wm97xx *wm = platform_get_drvdata(pdev);
-
- wm97xx_unregister_mach_ops(wm);
-
- return 0;
-}
-
-static struct platform_driver zylonite_wm97xx_driver = {
- .probe = zylonite_wm97xx_probe,
- .remove = zylonite_wm97xx_remove,
- .driver = {
- .name = "wm97xx-touch",
- },
-};
-module_platform_driver(zylonite_wm97xx_driver);
-
-/* Module information */
-MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
-MODULE_DESCRIPTION("wm97xx continuous touch driver for Zylonite");
-MODULE_LICENSE("GPL");