Merge tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pul removal of obsolete architecture ports from Arnd Bergmann:
 "This removes the entire architecture code for blackfin, cris, frv,
  m32r, metag, mn10300, score, and tile, including the associated device
  drivers.

  I have been working with the (former) maintainers for each one to
  ensure that my interpretation was right and the code is definitely
  unused in mainline kernels. Many had fond memories of working on the
  respective ports to start with and getting them included in upstream,
  but also saw no point in keeping the port alive without any users.

  In the end, it seems that while the eight architectures are extremely
  different, they all suffered the same fate: There was one company in
  charge of an SoC line, a CPU microarchitecture and a software
  ecosystem, which was more costly than licensing newer off-the-shelf
  CPU cores from a third party (typically ARM, MIPS, or RISC-V). It
  seems that all the SoC product lines are still around, but have not
  used the custom CPU architectures for several years at this point. In
  contrast, CPU instruction sets that remain popular and have actively
  maintained kernel ports tend to all be used across multiple licensees.

  [ See the new nds32 port merged in the previous commit for the next
    generation of "one company in charge of an SoC line, a CPU
    microarchitecture and a software ecosystem"   - Linus ]

  The removal came out of a discussion that is now documented at
  https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
  marking any ports as deprecated but remove them all at once after I
  made sure that they are all unused. Some architectures (notably tile,
  mn10300, and blackfin) are still being shipped in products with old
  kernels, but those products will never be updated to newer kernel
  releases.

  After this series, we still have a few architectures without mainline
  gcc support:

   - unicore32 and hexagon both have very outdated gcc releases, but the
     maintainers promised to work on providing something newer. At least
     in case of hexagon, this will only be llvm, not gcc.

   - openrisc, risc-v and nds32 are still in the process of finishing
     their support or getting it added to mainline gcc in the first
     place. They all have patched gcc-7.3 ports that work to some
     degree, but complete upstream support won't happen before gcc-8.1.
     Csky posted their first kernel patch set last week, their situation
     will be similar

  [ Palmer Dabbelt points out that RISC-V support is in mainline gcc
    since gcc-7, although gcc-7.3.0 is the recommended minimum  - Linus ]"

This really says it all:

 2498 files changed, 95 insertions(+), 467668 deletions(-)

* tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits)
  MAINTAINERS: UNICORE32: Change email account
  staging: iio: remove iio-trig-bfin-timer driver
  tty: hvc: remove tile driver
  tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
  serial: remove tile uart driver
  serial: remove m32r_sio driver
  serial: remove blackfin drivers
  serial: remove cris/etrax uart drivers
  usb: Remove Blackfin references in USB support
  usb: isp1362: remove blackfin arch glue
  usb: musb: remove blackfin port
  usb: host: remove tilegx platform glue
  pwm: remove pwm-bfin driver
  i2c: remove bfin-twi driver
  spi: remove blackfin related host drivers
  watchdog: remove bfin_wdt driver
  can: remove bfin_can driver
  mmc: remove bfin_sdh driver
  input: misc: remove blackfin rotary driver
  input: keyboard: remove bf54x driver
  ...

3 files changed, 0 insertions, 406 deletions

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 4c4ab1ced235..2b469cc47a78 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -157,15 +157,6 @@ config KEYBOARD_QT2160
 	  This driver can also be built as a module. If so, the module
 	  will be called qt2160.
 
-config KEYBOARD_BFIN
-	tristate "Blackfin BF54x keypad support"
-	depends on (BF54x && !BF544)
-	help
-	  Say Y here if you want to use the BF54x keypad.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called bf54x-keys.
-
 config KEYBOARD_CLPS711X
 	tristate "CLPS711X Keypad support"
 	depends on OF_GPIO && (ARCH_CLPS711X || COMPILE_TEST)
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 526e68294e6e..8fab920afa58 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -13,7 +13,6 @@ obj-$(CONFIG_KEYBOARD_AMIGA)		+= amikbd.o
 obj-$(CONFIG_KEYBOARD_ATARI)		+= atakbd.o
 obj-$(CONFIG_KEYBOARD_ATKBD)		+= atkbd.o
 obj-$(CONFIG_KEYBOARD_BCM)		+= bcm-keypad.o
-obj-$(CONFIG_KEYBOARD_BFIN)		+= bf54x-keys.o
 obj-$(CONFIG_KEYBOARD_CAP11XX)		+= cap11xx.o
 obj-$(CONFIG_KEYBOARD_CLPS711X)		+= clps711x-keypad.o
 obj-$(CONFIG_KEYBOARD_CROS_EC)		+= cros_ec_keyb.o
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
deleted file mode 100644
index 8a07a426f88e..000000000000
--- a/drivers/input/keyboard/bf54x-keys.c
+++ /dev/null
@@ -1,396 +0,0 @@
-/*
- * File:         drivers/input/keyboard/bf54x-keys.c
- * Based on:
- * Author:       Michael Hennerich <hennerich@blackfin.uclinux.org>
- *
- * Created:
- * Description:  keypad driver for Analog Devices Blackfin BF54x Processors
- *
- *
- * Modified:
- *               Copyright 2007-2008 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <linux/module.h>
-
-#include <linux/fs.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <linux/pm.h>
-#include <linux/sysctl.h>
-#include <linux/proc_fs.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/input.h>
-
-#include <asm/portmux.h>
-#include <mach/bf54x_keys.h>
-
-#define DRV_NAME	"bf54x-keys"
-#define TIME_SCALE	100	/* 100 ns */
-#define	MAX_MULT	(0xFF * TIME_SCALE)
-#define MAX_RC		8	/* Max Row/Col */
-
-static const u16 per_rows[] = {
-	P_KEY_ROW7,
-	P_KEY_ROW6,
-	P_KEY_ROW5,
-	P_KEY_ROW4,
-	P_KEY_ROW3,
-	P_KEY_ROW2,
-	P_KEY_ROW1,
-	P_KEY_ROW0,
-	0
-};
-
-static const u16 per_cols[] = {
-	P_KEY_COL7,
-	P_KEY_COL6,
-	P_KEY_COL5,
-	P_KEY_COL4,
-	P_KEY_COL3,
-	P_KEY_COL2,
-	P_KEY_COL1,
-	P_KEY_COL0,
-	0
-};
-
-struct bf54x_kpad {
-	struct input_dev *input;
-	int irq;
-	unsigned short lastkey;
-	unsigned short *keycode;
-	struct timer_list timer;
-	unsigned int keyup_test_jiffies;
-	unsigned short kpad_msel;
-	unsigned short kpad_prescale;
-	unsigned short kpad_ctl;
-};
-
-static inline int bfin_kpad_find_key(struct bf54x_kpad *bf54x_kpad,
-			struct input_dev *input, u16 keyident)
-{
-	u16 i;
-
-	for (i = 0; i < input->keycodemax; i++)
-		if (bf54x_kpad->keycode[i + input->keycodemax] == keyident)
-			return bf54x_kpad->keycode[i];
-	return -1;
-}
-
-static inline void bfin_keycodecpy(unsigned short *keycode,
-			const unsigned int *pdata_kc,
-			unsigned short keymapsize)
-{
-	unsigned int i;
-
-	for (i = 0; i < keymapsize; i++) {
-		keycode[i] = pdata_kc[i] & 0xffff;
-		keycode[i + keymapsize] = pdata_kc[i] >> 16;
-	}
-}
-
-static inline u16 bfin_kpad_get_prescale(u32 timescale)
-{
-	u32 sclk = get_sclk();
-
-	return ((((sclk / 1000) * timescale) / 1024) - 1);
-}
-
-static inline u16 bfin_kpad_get_keypressed(struct bf54x_kpad *bf54x_kpad)
-{
-	return (bfin_read_KPAD_STAT() & KPAD_PRESSED);
-}
-
-static inline void bfin_kpad_clear_irq(void)
-{
-	bfin_write_KPAD_STAT(0xFFFF);
-	bfin_write_KPAD_ROWCOL(0xFFFF);
-}
-
-static void bfin_kpad_timer(struct timer_list *t)
-{
-	struct bf54x_kpad *bf54x_kpad = from_timer(bf54x_kpad, t, timer);
-
-	if (bfin_kpad_get_keypressed(bf54x_kpad)) {
-		/* Try again later */
-		mod_timer(&bf54x_kpad->timer,
-			  jiffies + bf54x_kpad->keyup_test_jiffies);
-		return;
-	}
-
-	input_report_key(bf54x_kpad->input, bf54x_kpad->lastkey, 0);
-	input_sync(bf54x_kpad->input);
-
-	/* Clear IRQ Status */
-
-	bfin_kpad_clear_irq();
-	enable_irq(bf54x_kpad->irq);
-}
-
-static irqreturn_t bfin_kpad_isr(int irq, void *dev_id)
-{
-	struct platform_device *pdev = dev_id;
-	struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
-	struct input_dev *input = bf54x_kpad->input;
-	int key;
-	u16 rowcol = bfin_read_KPAD_ROWCOL();
-
-	key = bfin_kpad_find_key(bf54x_kpad, input, rowcol);
-
-	input_report_key(input, key, 1);
-	input_sync(input);
-
-	if (bfin_kpad_get_keypressed(bf54x_kpad)) {
-		disable_irq_nosync(bf54x_kpad->irq);
-		bf54x_kpad->lastkey = key;
-		mod_timer(&bf54x_kpad->timer,
-			  jiffies + bf54x_kpad->keyup_test_jiffies);
-	} else {
-		input_report_key(input, key, 0);
-		input_sync(input);
-
-		bfin_kpad_clear_irq();
-	}
-
-	return IRQ_HANDLED;
-}
-
-static int bfin_kpad_probe(struct platform_device *pdev)
-{
-	struct bf54x_kpad *bf54x_kpad;
-	struct bfin_kpad_platform_data *pdata = dev_get_platdata(&pdev->dev);
-	struct input_dev *input;
-	int i, error;
-
-	if (!pdata->rows || !pdata->cols || !pdata->keymap) {
-		dev_err(&pdev->dev, "no rows, cols or keymap from pdata\n");
-		return -EINVAL;
-	}
-
-	if (!pdata->keymapsize ||
-	    pdata->keymapsize > (pdata->rows * pdata->cols)) {
-		dev_err(&pdev->dev, "invalid keymapsize\n");
-		return -EINVAL;
-	}
-
-	bf54x_kpad = kzalloc(sizeof(struct bf54x_kpad), GFP_KERNEL);
-	if (!bf54x_kpad)
-		return -ENOMEM;
-
-	platform_set_drvdata(pdev, bf54x_kpad);
-
-	/* Allocate memory for keymap followed by private LUT */
-	bf54x_kpad->keycode = kmalloc(pdata->keymapsize *
-					sizeof(unsigned short) * 2, GFP_KERNEL);
-	if (!bf54x_kpad->keycode) {
-		error = -ENOMEM;
-		goto out;
-	}
-
-	if (!pdata->debounce_time || pdata->debounce_time > MAX_MULT ||
-	    !pdata->coldrive_time || pdata->coldrive_time > MAX_MULT) {
-		dev_warn(&pdev->dev,
-			"invalid platform debounce/columndrive time\n");
-		bfin_write_KPAD_MSEL(0xFF0);	/* Default MSEL	*/
-	} else {
-		bfin_write_KPAD_MSEL(
-			((pdata->debounce_time / TIME_SCALE)
-						& DBON_SCALE) |
-			(((pdata->coldrive_time / TIME_SCALE) << 8)
-						& COLDRV_SCALE));
-
-	}
-
-	if (!pdata->keyup_test_interval)
-		bf54x_kpad->keyup_test_jiffies = msecs_to_jiffies(50);
-	else
-		bf54x_kpad->keyup_test_jiffies =
-			msecs_to_jiffies(pdata->keyup_test_interval);
-
-	if (peripheral_request_list((u16 *)&per_rows[MAX_RC - pdata->rows],
-				    DRV_NAME)) {
-		dev_err(&pdev->dev, "requesting peripherals failed\n");
-		error = -EFAULT;
-		goto out0;
-	}
-
-	if (peripheral_request_list((u16 *)&per_cols[MAX_RC - pdata->cols],
-				    DRV_NAME)) {
-		dev_err(&pdev->dev, "requesting peripherals failed\n");
-		error = -EFAULT;
-		goto out1;
-	}
-
-	bf54x_kpad->irq = platform_get_irq(pdev, 0);
-	if (bf54x_kpad->irq < 0) {
-		error = -ENODEV;
-		goto out2;
-	}
-
-	error = request_irq(bf54x_kpad->irq, bfin_kpad_isr,
-				0, DRV_NAME, pdev);
-	if (error) {
-		dev_err(&pdev->dev, "unable to claim irq %d\n",
-			bf54x_kpad->irq);
-		goto out2;
-	}
-
-	input = input_allocate_device();
-	if (!input) {
-		error = -ENOMEM;
-		goto out3;
-	}
-
-	bf54x_kpad->input = input;
-
-	input->name = pdev->name;
-	input->phys = "bf54x-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->keycodesize = sizeof(unsigned short);
-	input->keycodemax = pdata->keymapsize;
-	input->keycode = bf54x_kpad->keycode;
-
-	bfin_keycodecpy(bf54x_kpad->keycode, pdata->keymap, pdata->keymapsize);
-
-	/* setup input device */
-	__set_bit(EV_KEY, input->evbit);
-
-	if (pdata->repeat)
-		__set_bit(EV_REP, input->evbit);
-
-	for (i = 0; i < input->keycodemax; i++)
-		if (bf54x_kpad->keycode[i] <= KEY_MAX)
-			__set_bit(bf54x_kpad->keycode[i], input->keybit);
-	__clear_bit(KEY_RESERVED, input->keybit);
-
-	error = input_register_device(input);
-	if (error) {
-		dev_err(&pdev->dev, "unable to register input device\n");
-		goto out4;
-	}
-
-	/* Init Keypad Key Up/Release test timer */
-
-	timer_setup(&bf54x_kpad->timer, bfin_kpad_timer, 0);
-
-	bfin_write_KPAD_PRESCALE(bfin_kpad_get_prescale(TIME_SCALE));
-
-	bfin_write_KPAD_CTL((((pdata->cols - 1) << 13) & KPAD_COLEN) |
-				(((pdata->rows - 1) << 10) & KPAD_ROWEN) |
-				(2 & KPAD_IRQMODE));
-
-	bfin_write_KPAD_CTL(bfin_read_KPAD_CTL() | KPAD_EN);
-
-	device_init_wakeup(&pdev->dev, 1);
-
-	return 0;
-
-out4:
-	input_free_device(input);
-out3:
-	free_irq(bf54x_kpad->irq, pdev);
-out2:
-	peripheral_free_list((u16 *)&per_cols[MAX_RC - pdata->cols]);
-out1:
-	peripheral_free_list((u16 *)&per_rows[MAX_RC - pdata->rows]);
-out0:
-	kfree(bf54x_kpad->keycode);
-out:
-	kfree(bf54x_kpad);
-
-	return error;
-}
-
-static int bfin_kpad_remove(struct platform_device *pdev)
-{
-	struct bfin_kpad_platform_data *pdata = dev_get_platdata(&pdev->dev);
-	struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
-
-	del_timer_sync(&bf54x_kpad->timer);
-	free_irq(bf54x_kpad->irq, pdev);
-
-	input_unregister_device(bf54x_kpad->input);
-
-	peripheral_free_list((u16 *)&per_rows[MAX_RC - pdata->rows]);
-	peripheral_free_list((u16 *)&per_cols[MAX_RC - pdata->cols]);
-
-	kfree(bf54x_kpad->keycode);
-	kfree(bf54x_kpad);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int bfin_kpad_suspend(struct platform_device *pdev, pm_message_t state)
-{
-	struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
-
-	bf54x_kpad->kpad_msel = bfin_read_KPAD_MSEL();
-	bf54x_kpad->kpad_prescale = bfin_read_KPAD_PRESCALE();
-	bf54x_kpad->kpad_ctl = bfin_read_KPAD_CTL();
-
-	if (device_may_wakeup(&pdev->dev))
-		enable_irq_wake(bf54x_kpad->irq);
-
-	return 0;
-}
-
-static int bfin_kpad_resume(struct platform_device *pdev)
-{
-	struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
-
-	bfin_write_KPAD_MSEL(bf54x_kpad->kpad_msel);
-	bfin_write_KPAD_PRESCALE(bf54x_kpad->kpad_prescale);
-	bfin_write_KPAD_CTL(bf54x_kpad->kpad_ctl);
-
-	if (device_may_wakeup(&pdev->dev))
-		disable_irq_wake(bf54x_kpad->irq);
-
-	return 0;
-}
-#else
-# define bfin_kpad_suspend NULL
-# define bfin_kpad_resume  NULL
-#endif
-
-static struct platform_driver bfin_kpad_device_driver = {
-	.driver		= {
-		.name	= DRV_NAME,
-	},
-	.probe		= bfin_kpad_probe,
-	.remove		= bfin_kpad_remove,
-	.suspend	= bfin_kpad_suspend,
-	.resume		= bfin_kpad_resume,
-};
-module_platform_driver(bfin_kpad_device_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Keypad driver for BF54x Processors");
-MODULE_ALIAS("platform:bf54x-keys");