From 745f8c14e35d32ff43a52a9415e4dcc2955c4321 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Mon, 14 May 2018 15:47:30 +0200
Subject: video: fbdev: remove unused auo_k190xfb drivers

auo_k1900fb and auo_k1901fb drivers have been introduced six
years ago by following commits:

commit 2c8304d3125b ("video: auo_k190x: add code shared by controller drivers")
commit 96b1d500e028 ("video: auo_k190x: add driver for AUO-K1900 variant")
commit 53027cdf2a67 ("video: auo_k190x: add driver for AUO-K1901 variant")

They never had any in-kernel user so just remove them (since
they are platform drivers they need corresponding platform
devices to be registered by kernel and it has never happened).

Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
 drivers/video/fbdev/auo_k1900fb.c | 204 --------------------------------------
 1 file changed, 204 deletions(-)
 delete mode 100644 drivers/video/fbdev/auo_k1900fb.c

(limited to 'drivers/video/fbdev/auo_k1900fb.c')

diff --git a/drivers/video/fbdev/auo_k1900fb.c b/drivers/video/fbdev/auo_k1900fb.c
deleted file mode 100644
index 7637c60eae3d..000000000000
--- a/drivers/video/fbdev/auo_k1900fb.c
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * auok190xfb.c -- FB driver for AUO-K1900 controllers
- *
- * Copyright (C) 2011, 2012 Heiko Stuebner <heiko@sntech.de>
- *
- * based on broadsheetfb.c
- *
- * Copyright (C) 2008, Jaya Kumar
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
- *
- * This driver is written to be used with the AUO-K1900 display controller.
- *
- * It is intended to be architecture independent. A board specific driver
- * must be used to perform all the physical IO interactions.
- *
- * The controller supports different update modes:
- * mode0+1 16 step gray (4bit)
- * mode2 4 step gray (2bit) - FIXME: add strange refresh
- * mode3 2 step gray (1bit) - FIXME: add strange refresh
- * mode4 handwriting mode (strange behaviour)
- * mode5 automatic selection of update mode
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/list.h>
-#include <linux/firmware.h>
-#include <linux/gpio.h>
-#include <linux/pm_runtime.h>
-
-#include <video/auo_k190xfb.h>
-
-#include "auo_k190x.h"
-
-/*
- * AUO-K1900 specific commands
- */
-
-#define AUOK1900_CMD_PARTIALDISP	0x1001
-#define AUOK1900_CMD_ROTATION		0x1006
-#define AUOK1900_CMD_LUT_STOP		0x1009
-
-#define AUOK1900_INIT_TEMP_AVERAGE	(1 << 13)
-#define AUOK1900_INIT_ROTATE(_x)	((_x & 0x3) << 10)
-#define AUOK1900_INIT_RESOLUTION(_res)	((_res & 0x7) << 2)
-
-static void auok1900_init(struct auok190xfb_par *par)
-{
-	struct device *dev = par->info->device;
-	struct auok190x_board *board = par->board;
-	u16 init_param = 0;
-
-	pm_runtime_get_sync(dev);
-
-	init_param |= AUOK1900_INIT_TEMP_AVERAGE;
-	init_param |= AUOK1900_INIT_ROTATE(par->rotation);
-	init_param |= AUOK190X_INIT_INVERSE_WHITE;
-	init_param |= AUOK190X_INIT_FORMAT0;
-	init_param |= AUOK1900_INIT_RESOLUTION(par->resolution);
-	init_param |= AUOK190X_INIT_SHIFT_RIGHT;
-
-	auok190x_send_cmdargs(par, AUOK190X_CMD_INIT, 1, &init_param);
-
-	/* let the controller finish */
-	board->wait_for_rdy(par);
-
-	pm_runtime_mark_last_busy(dev);
-	pm_runtime_put_autosuspend(dev);
-}
-
-static void auok1900_update_region(struct auok190xfb_par *par, int mode,
-						u16 y1, u16 y2)
-{
-	struct device *dev = par->info->device;
-	unsigned char *buf = (unsigned char *)par->info->screen_base;
-	int xres = par->info->var.xres;
-	int line_length = par->info->fix.line_length;
-	u16 args[4];
-
-	pm_runtime_get_sync(dev);
-
-	mutex_lock(&(par->io_lock));
-
-	/* y1 and y2 must be a multiple of 2 so drop the lowest bit */
-	y1 &= 0xfffe;
-	y2 &= 0xfffe;
-
-	dev_dbg(dev, "update (x,y,w,h,mode)=(%d,%d,%d,%d,%d)\n",
-		1, y1+1, xres, y2-y1, mode);
-
-	/* to FIX handle different partial update modes */
-	args[0] = mode | 1;
-	args[1] = y1 + 1;
-	args[2] = xres;
-	args[3] = y2 - y1;
-	buf += y1 * line_length;
-	auok190x_send_cmdargs_pixels(par, AUOK1900_CMD_PARTIALDISP, 4, args,
-				     ((y2 - y1) * line_length)/2, (u16 *) buf);
-	auok190x_send_command(par, AUOK190X_CMD_DATA_STOP);
-
-	par->update_cnt++;
-
-	mutex_unlock(&(par->io_lock));
-
-	pm_runtime_mark_last_busy(dev);
-	pm_runtime_put_autosuspend(dev);
-}
-
-static void auok1900fb_dpy_update_pages(struct auok190xfb_par *par,
-						u16 y1, u16 y2)
-{
-	int mode;
-
-	if (par->update_mode < 0) {
-		mode = AUOK190X_UPDATE_MODE(1);
-		par->last_mode = -1;
-	} else {
-		mode = AUOK190X_UPDATE_MODE(par->update_mode);
-		par->last_mode = par->update_mode;
-	}
-
-	if (par->flash)
-		mode |= AUOK190X_UPDATE_NONFLASH;
-
-	auok1900_update_region(par, mode, y1, y2);
-}
-
-static void auok1900fb_dpy_update(struct auok190xfb_par *par)
-{
-	int mode;
-
-	if (par->update_mode < 0) {
-		mode = AUOK190X_UPDATE_MODE(0);
-		par->last_mode = -1;
-	} else {
-		mode = AUOK190X_UPDATE_MODE(par->update_mode);
-		par->last_mode = par->update_mode;
-	}
-
-	if (par->flash)
-		mode |= AUOK190X_UPDATE_NONFLASH;
-
-	auok1900_update_region(par, mode, 0, par->info->var.yres);
-	par->update_cnt = 0;
-}
-
-static bool auok1900fb_need_refresh(struct auok190xfb_par *par)
-{
-	return (par->update_cnt > 10);
-}
-
-static int auok1900fb_probe(struct platform_device *pdev)
-{
-	struct auok190x_init_data init;
-	struct auok190x_board *board;
-
-	/* pick up board specific routines */
-	board = pdev->dev.platform_data;
-	if (!board)
-		return -EINVAL;
-
-	/* fill temporary init struct for common init */
-	init.id = "auo_k1900fb";
-	init.board = board;
-	init.update_partial = auok1900fb_dpy_update_pages;
-	init.update_all = auok1900fb_dpy_update;
-	init.need_refresh = auok1900fb_need_refresh;
-	init.init = auok1900_init;
-
-	return auok190x_common_probe(pdev, &init);
-}
-
-static int auok1900fb_remove(struct platform_device *pdev)
-{
-	return auok190x_common_remove(pdev);
-}
-
-static struct platform_driver auok1900fb_driver = {
-	.probe	= auok1900fb_probe,
-	.remove = auok1900fb_remove,
-	.driver	= {
-		.name	= "auo_k1900fb",
-		.pm = &auok190x_pm,
-	},
-};
-module_platform_driver(auok1900fb_driver);
-
-MODULE_DESCRIPTION("framebuffer driver for the AUO-K1900 EPD controller");
-MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
-MODULE_LICENSE("GPL");
-- 
cgit v1.2.3