[PATCH 10/22] input: remove sh_keysc

Christoph Hellwig
2023-01-13T06:27:35Z

Now that arch/sh is removed this driver is dead code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/input/keyboard/Kconfig | 10 -
drivers/input/keyboard/Makefile | 1 -
drivers/input/keyboard/sh_keysc.c | 334 ------------------------------
3 files changed, 345 deletions(-)
delete mode 100644 drivers/input/keyboard/sh_keysc.c

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 84490915ae4d5a..882ec5fef214ac 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -625,16 +625,6 @@ config KEYBOARD_SUNKBD
To compile this driver as a module, choose M here: the
module will be called sunkbd.

-config KEYBOARD_SH_KEYSC
- tristate "SuperH KEYSC keypad support"
- depends on ARCH_SHMOBILE || COMPILE_TEST
- help
- Say Y here if you want to use a keypad attached to the KEYSC block
- on SuperH processors such as sh7722 and sh7343.
-
- To compile this driver as a module, choose M here: the
- module will be called sh_keysc.
-
config KEYBOARD_STMPE
tristate "STMPE keypad support"
depends on MFD_STMPE
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 5f67196bb2c1ea..8aba0b052b4504 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -60,7 +60,6 @@ obj-$(CONFIG_KEYBOARD_QT1050) += qt1050.o
obj-$(CONFIG_KEYBOARD_QT1070) += qt1070.o
obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o
obj-$(CONFIG_KEYBOARD_SAMSUNG) += samsung-keypad.o
-obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o
obj-$(CONFIG_KEYBOARD_SNVS_PWRKEY) += snvs_pwrkey.o
obj-$(CONFIG_KEYBOARD_SPEAR) += spear-keyboard.o
obj-$(CONFIG_KEYBOARD_STMPE) += stmpe-keypad.o
diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c
deleted file mode 100644
index 2c00320f739fc1..00000000000000
--- a/drivers/input/keyboard/sh_keysc.c
+++ /dev/null
@@ -1,334 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * SuperH KEYSC Keypad Driver
- *
- * Copyright (C) 2008 Magnus Damm
- *
- * Based on gpio_keys.c, Copyright 2005 Phil Blundell
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/input.h>
-#include <linux/input/sh_keysc.h>
-#include <linux/bitmap.h>
-#include <linux/pm_runtime.h>
-#include <linux/io.h>
-#include <linux/slab.h>
-
-static const struct {
- unsigned char kymd, keyout, keyin;
-} sh_keysc_mode[] = {
- [SH_KEYSC_MODE_1] = { 0, 6, 5 },
- [SH_KEYSC_MODE_2] = { 1, 5, 6 },
- [SH_KEYSC_MODE_3] = { 2, 4, 7 },
- [SH_KEYSC_MODE_4] = { 3, 6, 6 },
- [SH_KEYSC_MODE_5] = { 4, 6, 7 },
- [SH_KEYSC_MODE_6] = { 5, 8, 8 },
-};
-
-struct sh_keysc_priv {
- void __iomem *iomem_base;
- DECLARE_BITMAP(last_keys, SH_KEYSC_MAXKEYS);
- struct input_dev *input;
- struct sh_keysc_info pdata;
-};
-
-#define KYCR1 0
-#define KYCR2 1
-#define KYINDR 2
-#define KYOUTDR 3
-
-#define KYCR2_IRQ_LEVEL 0x10
-#define KYCR2_IRQ_DISABLED 0x00
-
-static unsigned long sh_keysc_read(struct sh_keysc_priv *p, int reg_nr)
-{
- return ioread16(p->iomem_base + (reg_nr << 2));
-}
-
-static void sh_keysc_write(struct sh_keysc_priv *p, int reg_nr,
- unsigned long value)
-{
- iowrite16(value, p->iomem_base + (reg_nr << 2));
-}
-
-static void sh_keysc_level_mode(struct sh_keysc_priv *p,
- unsigned long keys_set)
-{
- struct sh_keysc_info *pdata = &p->pdata;
-
- sh_keysc_write(p, KYOUTDR, 0);
- sh_keysc_write(p, KYCR2, KYCR2_IRQ_LEVEL | (keys_set << 8));
-
- if (pdata->kycr2_delay)
- udelay(pdata->kycr2_delay);
-}
-
-static void sh_keysc_map_dbg(struct device *dev, unsigned long *map,
- const char *str)
-{
- int k;
-
- for (k = 0; k < BITS_TO_LONGS(SH_KEYSC_MAXKEYS); k++)
- dev_dbg(dev, "%s[%d] 0x%lx\n", str, k, map[k]);
-}
-
-static irqreturn_t sh_keysc_isr(int irq, void *dev_id)
-{
- struct platform_device *pdev = dev_id;
- struct sh_keysc_priv *priv = platform_get_drvdata(pdev);
- struct sh_keysc_info *pdata = &priv->pdata;
- int keyout_nr = sh_keysc_mode[pdata->mode].keyout;
- int keyin_nr = sh_keysc_mode[pdata->mode].keyin;
- DECLARE_BITMAP(keys, SH_KEYSC_MAXKEYS);
- DECLARE_BITMAP(keys0, SH_KEYSC_MAXKEYS);
- DECLARE_BITMAP(keys1, SH_KEYSC_MAXKEYS);
- unsigned char keyin_set, tmp;
- int i, k, n;
-
- dev_dbg(&pdev->dev, "isr!\n");
-
- bitmap_fill(keys1, SH_KEYSC_MAXKEYS);
- bitmap_zero(keys0, SH_KEYSC_MAXKEYS);
-
- do {
- bitmap_zero(keys, SH_KEYSC_MAXKEYS);
- keyin_set = 0;
-
- sh_keysc_write(priv, KYCR2, KYCR2_IRQ_DISABLED);
-
- for (i = 0; i < keyout_nr; i++) {
- n = keyin_nr * i;
-
- /* drive one KEYOUT pin low, read KEYIN pins */
- sh_keysc_write(priv, KYOUTDR, 0xffff ^ (3 << (i * 2)));
- udelay(pdata->delay);
- tmp = sh_keysc_read(priv, KYINDR);
-
- /* set bit if key press has been detected */
- for (k = 0; k < keyin_nr; k++) {
- if (tmp & (1 << k))
- __set_bit(n + k, keys);
- }
-
- /* keep track of which KEYIN bits that have been set */
- keyin_set |= tmp ^ ((1 << keyin_nr) - 1);
- }
-
- sh_keysc_level_mode(priv, keyin_set);
-
- bitmap_complement(keys, keys, SH_KEYSC_MAXKEYS);
- bitmap_and(keys1, keys1, keys, SH_KEYSC_MAXKEYS);
- bitmap_or(keys0, keys0, keys, SH_KEYSC_MAXKEYS);
-
- sh_keysc_map_dbg(&pdev->dev, keys, "keys");
-
- } while (sh_keysc_read(priv, KYCR2) & 0x01);
-
- sh_keysc_map_dbg(&pdev->dev, priv->last_keys, "last_keys");
- sh_keysc_map_dbg(&pdev->dev, keys0, "keys0");
- sh_keysc_map_dbg(&pdev->dev, keys1, "keys1");
-
- for (i = 0; i < SH_KEYSC_MAXKEYS; i++) {
- k = pdata->keycodes[i];
- if (!k)
- continue;
-
- if (test_bit(i, keys0) == test_bit(i, priv->last_keys))
- continue;
-
- if (test_bit(i, keys1) || test_bit(i, keys0)) {
- input_event(priv->input, EV_KEY, k, 1);
- __set_bit(i, priv->last_keys);
- }
-
- if (!test_bit(i, keys1)) {
- input_event(priv->input, EV_KEY, k, 0);
- __clear_bit(i, priv->last_keys);
- }
-
- }
- input_sync(priv->input);
-
- return IRQ_HANDLED;
-}
-
-static int sh_keysc_probe(struct platform_device *pdev)
-{
- struct sh_keysc_priv *priv;
- struct sh_keysc_info *pdata;
- struct resource *res;
- struct input_dev *input;
- int i;
- int irq, error;
-
- if (!dev_get_platdata(&pdev->dev)) {
- dev_err(&pdev->dev, "no platform data defined\n");
- error = -EINVAL;
- goto err0;
- }
-
- error = -ENXIO;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL) {
- dev_err(&pdev->dev, "failed to get I/O memory\n");
- goto err0;
- }
-
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- goto err0;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (priv == NULL) {
- dev_err(&pdev->dev, "failed to allocate driver data\n");
- error = -ENOMEM;
- goto err0;
- }
-
- platform_set_drvdata(pdev, priv);
- memcpy(&priv->pdata, dev_get_platdata(&pdev->dev), sizeof(priv->pdata));
- pdata = &priv->pdata;
-
- priv->iomem_base = ioremap(res->start, resource_size(res));
- if (priv->iomem_base == NULL) {
- dev_err(&pdev->dev, "failed to remap I/O memory\n");
- error = -ENXIO;
- goto err1;
- }
-
- priv->input = input_allocate_device();
- if (!priv->input) {
- dev_err(&pdev->dev, "failed to allocate input device\n");
- error = -ENOMEM;
- goto err2;
- }
-
- input = priv->input;
- input->evbit[0] = BIT_MASK(EV_KEY);
-
- input->name = pdev->name;
- input->phys = "sh-keysc-keys/input0";
- input->dev.parent = &pdev->dev;
-
- input->id.bustype = BUS_HOST;
- input->id.vendor = 0x0001;
- input->id.product = 0x0001;
- input->id.version = 0x0100;
-
- input->keycode = pdata->keycodes;
- input->keycodesize = sizeof(pdata->keycodes[0]);
- input->keycodemax = ARRAY_SIZE(pdata->keycodes);
-
- error = request_threaded_irq(irq, NULL, sh_keysc_isr, IRQF_ONESHOT,
- dev_name(&pdev->dev), pdev);
- if (error) {
- dev_err(&pdev->dev, "failed to request IRQ\n");
- goto err3;
- }
-
- for (i = 0; i < SH_KEYSC_MAXKEYS; i++)
- __set_bit(pdata->keycodes[i], input->keybit);
- __clear_bit(KEY_RESERVED, input->keybit);
-
- error = input_register_device(input);
- if (error) {
- dev_err(&pdev->dev, "failed to register input device\n");
- goto err4;
- }
-
- pm_runtime_enable(&pdev->dev);
- pm_runtime_get_sync(&pdev->dev);
-
- sh_keysc_write(priv, KYCR1, (sh_keysc_mode[pdata->mode].kymd << 8) |
- pdata->scan_timing);
- sh_keysc_level_mode(priv, 0);
-
- device_init_wakeup(&pdev->dev, 1);
-
- return 0;
-
- err4:
- free_irq(irq, pdev);
- err3:
- input_free_device(input);
- err2:
- iounmap(priv->iomem_base);
- err1:
- kfree(priv);
- err0:
- return error;
-}
-
-static int sh_keysc_remove(struct platform_device *pdev)
-{
- struct sh_keysc_priv *priv = platform_get_drvdata(pdev);
-
- sh_keysc_write(priv, KYCR2, KYCR2_IRQ_DISABLED);
-
- input_unregister_device(priv->input);
- free_irq(platform_get_irq(pdev, 0), pdev);
- iounmap(priv->iomem_base);
-
- pm_runtime_put_sync(&pdev->dev);
- pm_runtime_disable(&pdev->dev);
-
- kfree(priv);
-
- return 0;
-}
-
-static int sh_keysc_suspend(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct sh_keysc_priv *priv = platform_get_drvdata(pdev);
- int irq = platform_get_irq(pdev, 0);
- unsigned short value;
-
- value = sh_keysc_read(priv, KYCR1);
-
- if (device_may_wakeup(dev)) {
- sh_keysc_write(priv, KYCR1, value | 0x80);
- enable_irq_wake(irq);
- } else {
- sh_keysc_write(priv, KYCR1, value & ~0x80);
- pm_runtime_put_sync(dev);
- }
-
- return 0;
-}
-
-static int sh_keysc_resume(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- int irq = platform_get_irq(pdev, 0);
-
- if (device_may_wakeup(dev))
- disable_irq_wake(irq);
- else
- pm_runtime_get_sync(dev);
-
- return 0;
-}
-
-static DEFINE_SIMPLE_DEV_PM_OPS(sh_keysc_dev_pm_ops,
- sh_keysc_suspend, sh_keysc_resume);
-
-static struct platform_driver sh_keysc_device_driver = {
- .probe = sh_keysc_probe,
- .remove = sh_keysc_remove,
- .driver = {
- .name = "sh_keysc",
- .pm = pm_sleep_ptr(&sh_keysc_dev_pm_ops),
- }
-};
-module_platform_driver(sh_keysc_device_driver);
-
-MODULE_AUTHOR("Magnus Damm");
-MODULE_DESCRIPTION("SuperH KEYSC Keypad Driver");
-MODULE_LICENSE("GPL");
--
2.39.0