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From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
To: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] video: fbdev: omap2: remove rfbi
Date: Fri, 27 Apr 2018 17:09:14 +0200
Message-id: <2238944.jilJcacc6d@amdc3058>
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omapfb equivalent of drm's commit aa61321d4c08 ("drm/omap: remove rfbi"):

The RFBI driver has not worked nor compiled for many years. There are
very few boards out there that use RFBI, and no one has stepped up to
fix it.

So let's remove the RFBI code that doesn't even compile.

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
 drivers/video/fbdev/omap2/omapfb/dss/Kconfig  |   13 
 drivers/video/fbdev/omap2/omapfb/dss/Makefile |    1 
 drivers/video/fbdev/omap2/omapfb/dss/core.c   |    6 
 drivers/video/fbdev/omap2/omapfb/dss/dss.h    |    4 
 drivers/video/fbdev/omap2/omapfb/dss/rfbi.c   | 1078 --------------------------
 include/video/omapfb_dss.h                    |   32 
 6 files changed, 1134 deletions(-)
 delete mode 100644 drivers/video/fbdev/omap2/omapfb/dss/rfbi.c

Index: b/drivers/video/fbdev/omap2/omapfb/dss/Kconfig
===================================================================
--- a/drivers/video/fbdev/omap2/omapfb/dss/Kconfig	2018-04-27 16:24:48.171632007 +0200
+++ b/drivers/video/fbdev/omap2/omapfb/dss/Kconfig	2018-04-27 16:25:31.067633088 +0200
@@ -42,19 +42,6 @@ config FB_OMAP2_DSS_DPI
 	help
 	  DPI Interface. This is the Parallel Display Interface.
 
-config FB_OMAP2_DSS_RFBI
-	bool "RFBI support"
-	depends on BROKEN
-        default n
-	help
-	  MIPI DBI support (RFBI, Remote Framebuffer Interface, in Texas
-	  Instrument's terminology).
-
-	  DBI is a bus between the host processor and a peripheral,
-	  such as a display or a framebuffer chip.
-
-	  See http://www.mipi.org/ for DBI specifications.
-
 config FB_OMAP2_DSS_VENC
 	bool "VENC support"
         default y
Index: b/drivers/video/fbdev/omap2/omapfb/dss/Makefile
===================================================================
--- a/drivers/video/fbdev/omap2/omapfb/dss/Makefile	2018-04-27 16:24:48.171632007 +0200
+++ b/drivers/video/fbdev/omap2/omapfb/dss/Makefile	2018-04-27 16:26:20.511634333 +0200
@@ -8,7 +8,6 @@ omapdss-y := core.o dss.o dss_features.o
 omapdss-y += manager.o manager-sysfs.o overlay.o overlay-sysfs.o apply.o \
 	dispc-compat.o display-sysfs.o
 omapdss-$(CONFIG_FB_OMAP2_DSS_DPI) += dpi.o
-omapdss-$(CONFIG_FB_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_FB_OMAP2_DSS_VENC) += venc.o
 omapdss-$(CONFIG_FB_OMAP2_DSS_SDI) += sdi.o
 omapdss-$(CONFIG_FB_OMAP2_DSS_DSI) += dsi.o
Index: b/drivers/video/fbdev/omap2/omapfb/dss/core.c
===================================================================
--- a/drivers/video/fbdev/omap2/omapfb/dss/core.c	2018-04-27 16:24:48.171632007 +0200
+++ b/drivers/video/fbdev/omap2/omapfb/dss/core.c	2018-04-27 16:26:00.675633833 +0200
@@ -251,9 +251,6 @@ static int (*dss_output_drv_reg_funcs[])
 #ifdef CONFIG_FB_OMAP2_DSS_SDI
 	sdi_init_platform_driver,
 #endif
-#ifdef CONFIG_FB_OMAP2_DSS_RFBI
-	rfbi_init_platform_driver,
-#endif
 #ifdef CONFIG_FB_OMAP2_DSS_VENC
 	venc_init_platform_driver,
 #endif
@@ -275,9 +272,6 @@ static void (*dss_output_drv_unreg_funcs
 #ifdef CONFIG_FB_OMAP2_DSS_VENC
 	venc_uninit_platform_driver,
 #endif
-#ifdef CONFIG_FB_OMAP2_DSS_RFBI
-	rfbi_uninit_platform_driver,
-#endif
 #ifdef CONFIG_FB_OMAP2_DSS_SDI
 	sdi_uninit_platform_driver,
 #endif
Index: b/drivers/video/fbdev/omap2/omapfb/dss/dss.h
===================================================================
--- a/drivers/video/fbdev/omap2/omapfb/dss/dss.h	2018-04-27 16:24:48.171632007 +0200
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dss.h	2018-04-27 16:24:48.171632007 +0200
@@ -472,10 +472,6 @@ void hdmi4_uninit_platform_driver(void);
 int hdmi5_init_platform_driver(void) __init;
 void hdmi5_uninit_platform_driver(void);
 
-/* RFBI */
-int rfbi_init_platform_driver(void) __init;
-void rfbi_uninit_platform_driver(void);
-
 
 #ifdef CONFIG_FB_OMAP2_DSS_COLLECT_IRQ_STATS
 static inline void dss_collect_irq_stats(u32 irqstatus, unsigned *irq_arr)
Index: b/drivers/video/fbdev/omap2/omapfb/dss/rfbi.c
===================================================================
--- a/drivers/video/fbdev/omap2/omapfb/dss/rfbi.c	2018-04-27 16:24:42.223631857 +0200
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,1078 +0,0 @@
-/*
- * linux/drivers/video/omap2/dss/rfbi.c
- *
- * Copyright (C) 2009 Nokia Corporation
- * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
- *
- * Some code and ideas taken from drivers/video/omap/ driver
- * by Imre Deak.
- *
- * 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.
- *
- * 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 <http://www.gnu.org/licenses/>.
- */
-
-#define DSS_SUBSYS_NAME "RFBI"
-
-#include <linux/kernel.h>
-#include <linux/dma-mapping.h>
-#include <linux/export.h>
-#include <linux/vmalloc.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/delay.h>
-#include <linux/kfifo.h>
-#include <linux/ktime.h>
-#include <linux/hrtimer.h>
-#include <linux/seq_file.h>
-#include <linux/semaphore.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/component.h>
-
-#include <video/omapfb_dss.h>
-#include "dss.h"
-
-struct rfbi_reg { u16 idx; };
-
-#define RFBI_REG(idx)		((const struct rfbi_reg) { idx })
-
-#define RFBI_REVISION		RFBI_REG(0x0000)
-#define RFBI_SYSCONFIG		RFBI_REG(0x0010)
-#define RFBI_SYSSTATUS		RFBI_REG(0x0014)
-#define RFBI_CONTROL		RFBI_REG(0x0040)
-#define RFBI_PIXEL_CNT		RFBI_REG(0x0044)
-#define RFBI_LINE_NUMBER	RFBI_REG(0x0048)
-#define RFBI_CMD		RFBI_REG(0x004c)
-#define RFBI_PARAM		RFBI_REG(0x0050)
-#define RFBI_DATA		RFBI_REG(0x0054)
-#define RFBI_READ		RFBI_REG(0x0058)
-#define RFBI_STATUS		RFBI_REG(0x005c)
-
-#define RFBI_CONFIG(n)		RFBI_REG(0x0060 + (n)*0x18)
-#define RFBI_ONOFF_TIME(n)	RFBI_REG(0x0064 + (n)*0x18)
-#define RFBI_CYCLE_TIME(n)	RFBI_REG(0x0068 + (n)*0x18)
-#define RFBI_DATA_CYCLE1(n)	RFBI_REG(0x006c + (n)*0x18)
-#define RFBI_DATA_CYCLE2(n)	RFBI_REG(0x0070 + (n)*0x18)
-#define RFBI_DATA_CYCLE3(n)	RFBI_REG(0x0074 + (n)*0x18)
-
-#define RFBI_VSYNC_WIDTH	RFBI_REG(0x0090)
-#define RFBI_HSYNC_WIDTH	RFBI_REG(0x0094)
-
-#define REG_FLD_MOD(idx, val, start, end) \
-	rfbi_write_reg(idx, FLD_MOD(rfbi_read_reg(idx), val, start, end))
-
-enum omap_rfbi_cycleformat {
-	OMAP_DSS_RFBI_CYCLEFORMAT_1_1 = 0,
-	OMAP_DSS_RFBI_CYCLEFORMAT_2_1 = 1,
-	OMAP_DSS_RFBI_CYCLEFORMAT_3_1 = 2,
-	OMAP_DSS_RFBI_CYCLEFORMAT_3_2 = 3,
-};
-
-enum omap_rfbi_datatype {
-	OMAP_DSS_RFBI_DATATYPE_12 = 0,
-	OMAP_DSS_RFBI_DATATYPE_16 = 1,
-	OMAP_DSS_RFBI_DATATYPE_18 = 2,
-	OMAP_DSS_RFBI_DATATYPE_24 = 3,
-};
-
-enum omap_rfbi_parallelmode {
-	OMAP_DSS_RFBI_PARALLELMODE_8 = 0,
-	OMAP_DSS_RFBI_PARALLELMODE_9 = 1,
-	OMAP_DSS_RFBI_PARALLELMODE_12 = 2,
-	OMAP_DSS_RFBI_PARALLELMODE_16 = 3,
-};
-
-static int rfbi_convert_timings(struct rfbi_timings *t);
-static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div);
-
-static struct {
-	struct platform_device *pdev;
-	void __iomem	*base;
-
-	unsigned long	l4_khz;
-
-	enum omap_rfbi_datatype datatype;
-	enum omap_rfbi_parallelmode parallelmode;
-
-	enum omap_rfbi_te_mode te_mode;
-	int te_enabled;
-
-	void (*framedone_callback)(void *data);
-	void *framedone_callback_data;
-
-	struct omap_dss_device *dssdev[2];
-
-	struct semaphore bus_lock;
-
-	struct omap_video_timings timings;
-	int pixel_size;
-	int data_lines;
-	struct rfbi_timings intf_timings;
-
-	struct omap_dss_device output;
-} rfbi;
-
-static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val)
-{
-	__raw_writel(val, rfbi.base + idx.idx);
-}
-
-static inline u32 rfbi_read_reg(const struct rfbi_reg idx)
-{
-	return __raw_readl(rfbi.base + idx.idx);
-}
-
-static int rfbi_runtime_get(void)
-{
-	int r;
-
-	DSSDBG("rfbi_runtime_get\n");
-
-	r = pm_runtime_get_sync(&rfbi.pdev->dev);
-	WARN_ON(r < 0);
-	return r < 0 ? r : 0;
-}
-
-static void rfbi_runtime_put(void)
-{
-	int r;
-
-	DSSDBG("rfbi_runtime_put\n");
-
-	r = pm_runtime_put_sync(&rfbi.pdev->dev);
-	WARN_ON(r < 0 && r != -ENOSYS);
-}
-
-static void rfbi_bus_lock(void)
-{
-	down(&rfbi.bus_lock);
-}
-
-static void rfbi_bus_unlock(void)
-{
-	up(&rfbi.bus_lock);
-}
-
-static void rfbi_write_command(const void *buf, u32 len)
-{
-	switch (rfbi.parallelmode) {
-	case OMAP_DSS_RFBI_PARALLELMODE_8:
-	{
-		const u8 *b = buf;
-		for (; len; len--)
-			rfbi_write_reg(RFBI_CMD, *b++);
-		break;
-	}
-
-	case OMAP_DSS_RFBI_PARALLELMODE_16:
-	{
-		const u16 *w = buf;
-		BUG_ON(len & 1);
-		for (; len; len -= 2)
-			rfbi_write_reg(RFBI_CMD, *w++);
-		break;
-	}
-
-	case OMAP_DSS_RFBI_PARALLELMODE_9:
-	case OMAP_DSS_RFBI_PARALLELMODE_12:
-	default:
-		BUG();
-	}
-}
-
-static void rfbi_read_data(void *buf, u32 len)
-{
-	switch (rfbi.parallelmode) {
-	case OMAP_DSS_RFBI_PARALLELMODE_8:
-	{
-		u8 *b = buf;
-		for (; len; len--) {
-			rfbi_write_reg(RFBI_READ, 0);
-			*b++ = rfbi_read_reg(RFBI_READ);
-		}
-		break;
-	}
-
-	case OMAP_DSS_RFBI_PARALLELMODE_16:
-	{
-		u16 *w = buf;
-		BUG_ON(len & ~1);
-		for (; len; len -= 2) {
-			rfbi_write_reg(RFBI_READ, 0);
-			*w++ = rfbi_read_reg(RFBI_READ);
-		}
-		break;
-	}
-
-	case OMAP_DSS_RFBI_PARALLELMODE_9:
-	case OMAP_DSS_RFBI_PARALLELMODE_12:
-	default:
-		BUG();
-	}
-}
-
-static void rfbi_write_data(const void *buf, u32 len)
-{
-	switch (rfbi.parallelmode) {
-	case OMAP_DSS_RFBI_PARALLELMODE_8:
-	{
-		const u8 *b = buf;
-		for (; len; len--)
-			rfbi_write_reg(RFBI_PARAM, *b++);
-		break;
-	}
-
-	case OMAP_DSS_RFBI_PARALLELMODE_16:
-	{
-		const u16 *w = buf;
-		BUG_ON(len & 1);
-		for (; len; len -= 2)
-			rfbi_write_reg(RFBI_PARAM, *w++);
-		break;
-	}
-
-	case OMAP_DSS_RFBI_PARALLELMODE_9:
-	case OMAP_DSS_RFBI_PARALLELMODE_12:
-	default:
-		BUG();
-
-	}
-}
-
-static void rfbi_write_pixels(const void __iomem *buf, int scr_width,
-		u16 x, u16 y,
-		u16 w, u16 h)
-{
-	int start_offset = scr_width * y + x;
-	int horiz_offset = scr_width - w;
-	int i;
-
-	if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 &&
-	   rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) {
-		const u16 __iomem *pd = buf;
-		pd += start_offset;
-
-		for (; h; --h) {
-			for (i = 0; i < w; ++i) {
-				const u8 __iomem *b = (const u8 __iomem *)pd;
-				rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1));
-				rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0));
-				++pd;
-			}
-			pd += horiz_offset;
-		}
-	} else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_24 &&
-	   rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) {
-		const u32 __iomem *pd = buf;
-		pd += start_offset;
-
-		for (; h; --h) {
-			for (i = 0; i < w; ++i) {
-				const u8 __iomem *b = (const u8 __iomem *)pd;
-				rfbi_write_reg(RFBI_PARAM, __raw_readb(b+2));
-				rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1));
-				rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0));
-				++pd;
-			}
-			pd += horiz_offset;
-		}
-	} else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 &&
-	   rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_16) {
-		const u16 __iomem *pd = buf;
-		pd += start_offset;
-
-		for (; h; --h) {
-			for (i = 0; i < w; ++i) {
-				rfbi_write_reg(RFBI_PARAM, __raw_readw(pd));
-				++pd;
-			}
-			pd += horiz_offset;
-		}
-	} else {
-		BUG();
-	}
-}
-
-static int rfbi_transfer_area(struct omap_dss_device *dssdev,
-		void (*callback)(void *data), void *data)
-{
-	u32 l;
-	int r;
-	struct omap_overlay_manager *mgr = rfbi.output.manager;
-	u16 width = rfbi.timings.x_res;
-	u16 height = rfbi.timings.y_res;
-
-	/*BUG_ON(callback == 0);*/
-	BUG_ON(rfbi.framedone_callback != NULL);
-
-	DSSDBG("rfbi_transfer_area %dx%d\n", width, height);
-
-	dss_mgr_set_timings(mgr, &rfbi.timings);
-
-	r = dss_mgr_enable(mgr);
-	if (r)
-		return r;
-
-	rfbi.framedone_callback = callback;
-	rfbi.framedone_callback_data = data;
-
-	rfbi_write_reg(RFBI_PIXEL_CNT, width * height);
-
-	l = rfbi_read_reg(RFBI_CONTROL);
-	l = FLD_MOD(l, 1, 0, 0); /* enable */
-	if (!rfbi.te_enabled)
-		l = FLD_MOD(l, 1, 4, 4); /* ITE */
-
-	rfbi_write_reg(RFBI_CONTROL, l);
-
-	return 0;
-}
-
-static void framedone_callback(void *data)
-{
-	void (*callback)(void *data);
-
-	DSSDBG("FRAMEDONE\n");
-
-	REG_FLD_MOD(RFBI_CONTROL, 0, 0, 0);
-
-	callback = rfbi.framedone_callback;
-	rfbi.framedone_callback = NULL;
-
-	if (callback != NULL)
-		callback(rfbi.framedone_callback_data);
-}
-
-#if 1 /* VERBOSE */
-static void rfbi_print_timings(void)
-{
-	u32 l;
-	u32 time;
-
-	l = rfbi_read_reg(RFBI_CONFIG(0));
-	time = 1000000000 / rfbi.l4_khz;
-	if (l & (1 << 4))
-		time *= 2;
-
-	DSSDBG("Tick time %u ps\n", time);
-	l = rfbi_read_reg(RFBI_ONOFF_TIME(0));
-	DSSDBG("CSONTIME %d, CSOFFTIME %d, WEONTIME %d, WEOFFTIME %d, "
-		"REONTIME %d, REOFFTIME %d\n",
-		l & 0x0f, (l >> 4) & 0x3f, (l >> 10) & 0x0f, (l >> 14) & 0x3f,
-		(l >> 20) & 0x0f, (l >> 24) & 0x3f);
-
-	l = rfbi_read_reg(RFBI_CYCLE_TIME(0));
-	DSSDBG("WECYCLETIME %d, RECYCLETIME %d, CSPULSEWIDTH %d, "
-		"ACCESSTIME %d\n",
-		(l & 0x3f), (l >> 6) & 0x3f, (l >> 12) & 0x3f,
-		(l >> 22) & 0x3f);
-}
-#else
-static void rfbi_print_timings(void) {}
-#endif
-
-
-
-
-static u32 extif_clk_period;
-
-static inline unsigned long round_to_extif_ticks(unsigned long ps, int div)
-{
-	int bus_tick = extif_clk_period * div;
-	return (ps + bus_tick - 1) / bus_tick * bus_tick;
-}
-
-static int calc_reg_timing(struct rfbi_timings *t, int div)
-{
-	t->clk_div = div;
-
-	t->cs_on_time = round_to_extif_ticks(t->cs_on_time, div);
-
-	t->we_on_time = round_to_extif_ticks(t->we_on_time, div);
-	t->we_off_time = round_to_extif_ticks(t->we_off_time, div);
-	t->we_cycle_time = round_to_extif_ticks(t->we_cycle_time, div);
-
-	t->re_on_time = round_to_extif_ticks(t->re_on_time, div);
-	t->re_off_time = round_to_extif_ticks(t->re_off_time, div);
-	t->re_cycle_time = round_to_extif_ticks(t->re_cycle_time, div);
-
-	t->access_time = round_to_extif_ticks(t->access_time, div);
-	t->cs_off_time = round_to_extif_ticks(t->cs_off_time, div);
-	t->cs_pulse_width = round_to_extif_ticks(t->cs_pulse_width, div);
-
-	DSSDBG("[reg]cson %d csoff %d reon %d reoff %d\n",
-	       t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time);
-	DSSDBG("[reg]weon %d weoff %d recyc %d wecyc %d\n",
-	       t->we_on_time, t->we_off_time, t->re_cycle_time,
-	       t->we_cycle_time);
-	DSSDBG("[reg]rdaccess %d cspulse %d\n",
-	       t->access_time, t->cs_pulse_width);
-
-	return rfbi_convert_timings(t);
-}
-
-static int calc_extif_timings(struct rfbi_timings *t)
-{
-	u32 max_clk_div;
-	int div;
-
-	rfbi_get_clk_info(&extif_clk_period, &max_clk_div);
-	for (div = 1; div <= max_clk_div; div++) {
-		if (calc_reg_timing(t, div) == 0)
-			break;
-	}
-
-	if (div <= max_clk_div)
-		return 0;
-
-	DSSERR("can't setup timings\n");
-	return -1;
-}
-
-
-static void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t)
-{
-	int r;
-
-	if (!t->converted) {
-		r = calc_extif_timings(t);
-		if (r < 0)
-			DSSERR("Failed to calc timings\n");
-	}
-
-	BUG_ON(!t->converted);
-
-	rfbi_write_reg(RFBI_ONOFF_TIME(rfbi_module), t->tim[0]);
-	rfbi_write_reg(RFBI_CYCLE_TIME(rfbi_module), t->tim[1]);
-
-	/* TIMEGRANULARITY */
-	REG_FLD_MOD(RFBI_CONFIG(rfbi_module),
-		    (t->tim[2] ? 1 : 0), 4, 4);
-
-	rfbi_print_timings();
-}
-
-static int ps_to_rfbi_ticks(int time, int div)
-{
-	unsigned long tick_ps;
-	int ret;
-
-	/* Calculate in picosecs to yield more exact results */
-	tick_ps = 1000000000 / (rfbi.l4_khz) * div;
-
-	ret = (time + tick_ps - 1) / tick_ps;
-
-	return ret;
-}
-
-static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div)
-{
-	*clk_period = 1000000000 / rfbi.l4_khz;
-	*max_clk_div = 2;
-}
-
-static int rfbi_convert_timings(struct rfbi_timings *t)
-{
-	u32 l;
-	int reon, reoff, weon, weoff, cson, csoff, cs_pulse;
-	int actim, recyc, wecyc;
-	int div = t->clk_div;
-
-	if (div <= 0 || div > 2)
-		return -1;
-
-	/* Make sure that after conversion it still holds that:
-	 * weoff > weon, reoff > reon, recyc >= reoff, wecyc >= weoff,
-	 * csoff > cson, csoff >= max(weoff, reoff), actim > reon
-	 */
-	weon = ps_to_rfbi_ticks(t->we_on_time, div);
-	weoff = ps_to_rfbi_ticks(t->we_off_time, div);
-	if (weoff <= weon)
-		weoff = weon + 1;
-	if (weon > 0x0f)
-		return -1;
-	if (weoff > 0x3f)
-		return -1;
-
-	reon = ps_to_rfbi_ticks(t->re_on_time, div);
-	reoff = ps_to_rfbi_ticks(t->re_off_time, div);
-	if (reoff <= reon)
-		reoff = reon + 1;
-	if (reon > 0x0f)
-		return -1;
-	if (reoff > 0x3f)
-		return -1;
-
-	cson = ps_to_rfbi_ticks(t->cs_on_time, div);
-	csoff = ps_to_rfbi_ticks(t->cs_off_time, div);
-	if (csoff <= cson)
-		csoff = cson + 1;
-	if (csoff < max(weoff, reoff))
-		csoff = max(weoff, reoff);
-	if (cson > 0x0f)
-		return -1;
-	if (csoff > 0x3f)
-		return -1;
-
-	l =  cson;
-	l |= csoff << 4;
-	l |= weon  << 10;
-	l |= weoff << 14;
-	l |= reon  << 20;
-	l |= reoff << 24;
-
-	t->tim[0] = l;
-
-	actim = ps_to_rfbi_ticks(t->access_time, div);
-	if (actim <= reon)
-		actim = reon + 1;
-	if (actim > 0x3f)
-		return -1;
-
-	wecyc = ps_to_rfbi_ticks(t->we_cycle_time, div);
-	if (wecyc < weoff)
-		wecyc = weoff;
-	if (wecyc > 0x3f)
-		return -1;
-
-	recyc = ps_to_rfbi_ticks(t->re_cycle_time, div);
-	if (recyc < reoff)
-		recyc = reoff;
-	if (recyc > 0x3f)
-		return -1;
-
-	cs_pulse = ps_to_rfbi_ticks(t->cs_pulse_width, div);
-	if (cs_pulse > 0x3f)
-		return -1;
-
-	l =  wecyc;
-	l |= recyc    << 6;
-	l |= cs_pulse << 12;
-	l |= actim    << 22;
-
-	t->tim[1] = l;
-
-	t->tim[2] = div - 1;
-
-	t->converted = 1;
-
-	return 0;
-}
-
-/* xxx FIX module selection missing */
-static int rfbi_setup_te(enum omap_rfbi_te_mode mode,
-			     unsigned hs_pulse_time, unsigned vs_pulse_time,
-			     int hs_pol_inv, int vs_pol_inv, int extif_div)
-{
-	int hs, vs;
-	int min;
-	u32 l;
-
-	hs = ps_to_rfbi_ticks(hs_pulse_time, 1);
-	vs = ps_to_rfbi_ticks(vs_pulse_time, 1);
-	if (hs < 2)
-		return -EDOM;
-	if (mode == OMAP_DSS_RFBI_TE_MODE_2)
-		min = 2;
-	else /* OMAP_DSS_RFBI_TE_MODE_1 */
-		min = 4;
-	if (vs < min)
-		return -EDOM;
-	if (vs == hs)
-		return -EINVAL;
-	rfbi.te_mode = mode;
-	DSSDBG("setup_te: mode %d hs %d vs %d hs_inv %d vs_inv %d\n",
-		mode, hs, vs, hs_pol_inv, vs_pol_inv);
-
-	rfbi_write_reg(RFBI_HSYNC_WIDTH, hs);
-	rfbi_write_reg(RFBI_VSYNC_WIDTH, vs);
-
-	l = rfbi_read_reg(RFBI_CONFIG(0));
-	if (hs_pol_inv)
-		l &= ~(1 << 21);
-	else
-		l |= 1 << 21;
-	if (vs_pol_inv)
-		l &= ~(1 << 20);
-	else
-		l |= 1 << 20;
-
-	return 0;
-}
-
-/* xxx FIX module selection missing */
-static int rfbi_enable_te(bool enable, unsigned line)
-{
-	u32 l;
-
-	DSSDBG("te %d line %d mode %d\n", enable, line, rfbi.te_mode);
-	if (line > (1 << 11) - 1)
-		return -EINVAL;
-
-	l = rfbi_read_reg(RFBI_CONFIG(0));
-	l &= ~(0x3 << 2);
-	if (enable) {
-		rfbi.te_enabled = 1;
-		l |= rfbi.te_mode << 2;
-	} else
-		rfbi.te_enabled = 0;
-	rfbi_write_reg(RFBI_CONFIG(0), l);
-	rfbi_write_reg(RFBI_LINE_NUMBER, line);
-
-	return 0;
-}
-
-static int rfbi_configure_bus(int rfbi_module, int bpp, int lines)
-{
-	u32 l;
-	int cycle1 = 0, cycle2 = 0, cycle3 = 0;
-	enum omap_rfbi_cycleformat cycleformat;
-	enum omap_rfbi_datatype datatype;
-	enum omap_rfbi_parallelmode parallelmode;
-
-	switch (bpp) {
-	case 12:
-		datatype = OMAP_DSS_RFBI_DATATYPE_12;
-		break;
-	case 16:
-		datatype = OMAP_DSS_RFBI_DATATYPE_16;
-		break;
-	case 18:
-		datatype = OMAP_DSS_RFBI_DATATYPE_18;
-		break;
-	case 24:
-		datatype = OMAP_DSS_RFBI_DATATYPE_24;
-		break;
-	default:
-		BUG();
-		return 1;
-	}
-	rfbi.datatype = datatype;
-
-	switch (lines) {
-	case 8:
-		parallelmode = OMAP_DSS_RFBI_PARALLELMODE_8;
-		break;
-	case 9:
-		parallelmode = OMAP_DSS_RFBI_PARALLELMODE_9;
-		break;
-	case 12:
-		parallelmode = OMAP_DSS_RFBI_PARALLELMODE_12;
-		break;
-	case 16:
-		parallelmode = OMAP_DSS_RFBI_PARALLELMODE_16;
-		break;
-	default:
-		BUG();
-		return 1;
-	}
-	rfbi.parallelmode = parallelmode;
-
-	if ((bpp % lines) == 0) {
-		switch (bpp / lines) {
-		case 1:
-			cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_1_1;
-			break;
-		case 2:
-			cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_2_1;
-			break;
-		case 3:
-			cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_1;
-			break;
-		default:
-			BUG();
-			return 1;
-		}
-	} else if ((2 * bpp % lines) == 0) {
-		if ((2 * bpp / lines) == 3)
-			cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_2;
-		else {
-			BUG();
-			return 1;
-		}
-	} else {
-		BUG();
-		return 1;
-	}
-
-	switch (cycleformat) {
-	case OMAP_DSS_RFBI_CYCLEFORMAT_1_1:
-		cycle1 = lines;
-		break;
-
-	case OMAP_DSS_RFBI_CYCLEFORMAT_2_1:
-		cycle1 = lines;
-		cycle2 = lines;
-		break;
-
-	case OMAP_DSS_RFBI_CYCLEFORMAT_3_1:
-		cycle1 = lines;
-		cycle2 = lines;
-		cycle3 = lines;
-		break;
-
-	case OMAP_DSS_RFBI_CYCLEFORMAT_3_2:
-		cycle1 = lines;
-		cycle2 = (lines / 2) | ((lines / 2) << 16);
-		cycle3 = (lines << 16);
-		break;
-	}
-
-	REG_FLD_MOD(RFBI_CONTROL, 0, 3, 2); /* clear CS */
-
-	l = 0;
-	l |= FLD_VAL(parallelmode, 1, 0);
-	l |= FLD_VAL(0, 3, 2);		/* TRIGGERMODE: ITE */
-	l |= FLD_VAL(0, 4, 4);		/* TIMEGRANULARITY */
-	l |= FLD_VAL(datatype, 6, 5);
-	/* l |= FLD_VAL(2, 8, 7); */	/* L4FORMAT, 2pix/L4 */
-	l |= FLD_VAL(0, 8, 7);	/* L4FORMAT, 1pix/L4 */
-	l |= FLD_VAL(cycleformat, 10, 9);
-	l |= FLD_VAL(0, 12, 11);	/* UNUSEDBITS */
-	l |= FLD_VAL(0, 16, 16);	/* A0POLARITY */
-	l |= FLD_VAL(0, 17, 17);	/* REPOLARITY */
-	l |= FLD_VAL(0, 18, 18);	/* WEPOLARITY */
-	l |= FLD_VAL(0, 19, 19);	/* CSPOLARITY */
-	l |= FLD_VAL(1, 20, 20);	/* TE_VSYNC_POLARITY */
-	l |= FLD_VAL(1, 21, 21);	/* HSYNCPOLARITY */
-	rfbi_write_reg(RFBI_CONFIG(rfbi_module), l);
-
-	rfbi_write_reg(RFBI_DATA_CYCLE1(rfbi_module), cycle1);
-	rfbi_write_reg(RFBI_DATA_CYCLE2(rfbi_module), cycle2);
-	rfbi_write_reg(RFBI_DATA_CYCLE3(rfbi_module), cycle3);
-
-
-	l = rfbi_read_reg(RFBI_CONTROL);
-	l = FLD_MOD(l, rfbi_module+1, 3, 2); /* Select CSx */
-	l = FLD_MOD(l, 0, 1, 1); /* clear bypass */
-	rfbi_write_reg(RFBI_CONTROL, l);
-
-
-	DSSDBG("RFBI config: bpp %d, lines %d, cycles: 0x%x 0x%x 0x%x\n",
-	       bpp, lines, cycle1, cycle2, cycle3);
-
-	return 0;
-}
-
-static int rfbi_configure(struct omap_dss_device *dssdev)
-{
-	return rfbi_configure_bus(dssdev->phy.rfbi.channel, rfbi.pixel_size,
-			rfbi.data_lines);
-}
-
-static int rfbi_update(struct omap_dss_device *dssdev, void (*callback)(void *),
-		void *data)
-{
-	return rfbi_transfer_area(dssdev, callback, data);
-}
-
-static void rfbi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h)
-{
-	rfbi.timings.x_res = w;
-	rfbi.timings.y_res = h;
-}
-
-static void rfbi_set_pixel_size(struct omap_dss_device *dssdev, int pixel_size)
-{
-	rfbi.pixel_size = pixel_size;
-}
-
-static void rfbi_set_data_lines(struct omap_dss_device *dssdev, int data_lines)
-{
-	rfbi.data_lines = data_lines;
-}
-
-static void rfbi_set_interface_timings(struct omap_dss_device *dssdev,
-		struct rfbi_timings *timings)
-{
-	rfbi.intf_timings = *timings;
-}
-
-static void rfbi_dump_regs(struct seq_file *s)
-{
-#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r))
-
-	if (rfbi_runtime_get())
-		return;
-
-	DUMPREG(RFBI_REVISION);
-	DUMPREG(RFBI_SYSCONFIG);
-	DUMPREG(RFBI_SYSSTATUS);
-	DUMPREG(RFBI_CONTROL);
-	DUMPREG(RFBI_PIXEL_CNT);
-	DUMPREG(RFBI_LINE_NUMBER);
-	DUMPREG(RFBI_CMD);
-	DUMPREG(RFBI_PARAM);
-	DUMPREG(RFBI_DATA);
-	DUMPREG(RFBI_READ);
-	DUMPREG(RFBI_STATUS);
-
-	DUMPREG(RFBI_CONFIG(0));
-	DUMPREG(RFBI_ONOFF_TIME(0));
-	DUMPREG(RFBI_CYCLE_TIME(0));
-	DUMPREG(RFBI_DATA_CYCLE1(0));
-	DUMPREG(RFBI_DATA_CYCLE2(0));
-	DUMPREG(RFBI_DATA_CYCLE3(0));
-
-	DUMPREG(RFBI_CONFIG(1));
-	DUMPREG(RFBI_ONOFF_TIME(1));
-	DUMPREG(RFBI_CYCLE_TIME(1));
-	DUMPREG(RFBI_DATA_CYCLE1(1));
-	DUMPREG(RFBI_DATA_CYCLE2(1));
-	DUMPREG(RFBI_DATA_CYCLE3(1));
-
-	DUMPREG(RFBI_VSYNC_WIDTH);
-	DUMPREG(RFBI_HSYNC_WIDTH);
-
-	rfbi_runtime_put();
-#undef DUMPREG
-}
-
-static void rfbi_config_lcd_manager(struct omap_dss_device *dssdev)
-{
-	struct omap_overlay_manager *mgr = rfbi.output.manager;
-	struct dss_lcd_mgr_config mgr_config;
-
-	mgr_config.io_pad_mode = DSS_IO_PAD_MODE_RFBI;
-
-	mgr_config.stallmode = true;
-	/* Do we need fifohandcheck for RFBI? */
-	mgr_config.fifohandcheck = false;
-
-	mgr_config.video_port_width = rfbi.pixel_size;
-	mgr_config.lcden_sig_polarity = 0;
-
-	dss_mgr_set_lcd_config(mgr, &mgr_config);
-
-	/*
-	 * Set rfbi.timings with default values, the x_res and y_res fields
-	 * are expected to be already configured by the panel driver via
-	 * omapdss_rfbi_set_size()
-	 */
-	rfbi.timings.hsw = 1;
-	rfbi.timings.hfp = 1;
-	rfbi.timings.hbp = 1;
-	rfbi.timings.vsw = 1;
-	rfbi.timings.vfp = 0;
-	rfbi.timings.vbp = 0;
-
-	rfbi.timings.interlace = false;
-	rfbi.timings.hsync_level = OMAPDSS_SIG_ACTIVE_HIGH;
-	rfbi.timings.vsync_level = OMAPDSS_SIG_ACTIVE_HIGH;
-	rfbi.timings.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
-	rfbi.timings.de_level = OMAPDSS_SIG_ACTIVE_HIGH;
-	rfbi.timings.sync_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE;
-
-	dss_mgr_set_timings(mgr, &rfbi.timings);
-}
-
-static int rfbi_display_enable(struct omap_dss_device *dssdev)
-{
-	struct omap_dss_device *out = &rfbi.output;
-	int r;
-
-	if (out->manager == NULL) {
-		DSSERR("failed to enable display: no output/manager\n");
-		return -ENODEV;
-	}
-
-	r = rfbi_runtime_get();
-	if (r)
-		return r;
-
-	r = dss_mgr_register_framedone_handler(out->manager,
-			framedone_callback, NULL);
-	if (r) {
-		DSSERR("can't get FRAMEDONE irq\n");
-		goto err1;
-	}
-
-	rfbi_config_lcd_manager(dssdev);
-
-	rfbi_configure_bus(dssdev->phy.rfbi.channel, rfbi.pixel_size,
-			rfbi.data_lines);
-
-	rfbi_set_timings(dssdev->phy.rfbi.channel, &rfbi.intf_timings);
-
-	return 0;
-err1:
-	rfbi_runtime_put();
-	return r;
-}
-
-static void rfbi_display_disable(struct omap_dss_device *dssdev)
-{
-	struct omap_dss_device *out = &rfbi.output;
-
-	dss_mgr_unregister_framedone_handler(out->manager,
-			framedone_callback, NULL);
-
-	rfbi_runtime_put();
-}
-
-static int rfbi_init_display(struct omap_dss_device *dssdev)
-{
-	rfbi.dssdev[dssdev->phy.rfbi.channel] = dssdev;
-	return 0;
-}
-
-static void rfbi_init_output(struct platform_device *pdev)
-{
-	struct omap_dss_device *out = &rfbi.output;
-
-	out->dev = &pdev->dev;
-	out->id = OMAP_DSS_OUTPUT_DBI;
-	out->output_type = OMAP_DISPLAY_TYPE_DBI;
-	out->name = "rfbi.0";
-	out->dispc_channel = OMAP_DSS_CHANNEL_LCD;
-	out->owner = THIS_MODULE;
-
-	omapdss_register_output(out);
-}
-
-static void rfbi_uninit_output(struct platform_device *pdev)
-{
-	struct omap_dss_device *out = &rfbi.output;
-
-	omapdss_unregister_output(out);
-}
-
-/* RFBI HW IP initialisation */
-static int rfbi_bind(struct device *dev, struct device *master, void *data)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	u32 rev;
-	struct resource *rfbi_mem;
-	struct clk *clk;
-	int r;
-
-	rfbi.pdev = pdev;
-
-	sema_init(&rfbi.bus_lock, 1);
-
-	rfbi_mem = platform_get_resource(rfbi.pdev, IORESOURCE_MEM, 0);
-	if (!rfbi_mem) {
-		DSSERR("can't get IORESOURCE_MEM RFBI\n");
-		return -EINVAL;
-	}
-
-	rfbi.base = devm_ioremap(&pdev->dev, rfbi_mem->start,
-				 resource_size(rfbi_mem));
-	if (!rfbi.base) {
-		DSSERR("can't ioremap RFBI\n");
-		return -ENOMEM;
-	}
-
-	clk = clk_get(&pdev->dev, "ick");
-	if (IS_ERR(clk)) {
-		DSSERR("can't get ick\n");
-		return PTR_ERR(clk);
-	}
-
-	rfbi.l4_khz = clk_get_rate(clk) / 1000;
-
-	clk_put(clk);
-
-	pm_runtime_enable(&pdev->dev);
-
-	r = rfbi_runtime_get();
-	if (r)
-		goto err_runtime_get;
-
-	msleep(10);
-
-	rev = rfbi_read_reg(RFBI_REVISION);
-	dev_dbg(&pdev->dev, "OMAP RFBI rev %d.%d\n",
-	       FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
-
-	rfbi_runtime_put();
-
-	dss_debugfs_create_file("rfbi", rfbi_dump_regs);
-
-	rfbi_init_output(pdev);
-
-	return 0;
-
-err_runtime_get:
-	pm_runtime_disable(&pdev->dev);
-	return r;
-}
-
-static void rfbi_unbind(struct device *dev, struct device *master, void *data)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-
-	rfbi_uninit_output(pdev);
-
-	pm_runtime_disable(&pdev->dev);
-
-	return 0;
-}
-
-static const struct component_ops rfbi_component_ops = {
-	.bind	= rfbi_bind,
-	.unbind	= rfbi_unbind,
-};
-
-static int rfbi_probe(struct platform_device *pdev)
-{
-	return component_add(&pdev->dev, &rfbi_component_ops);
-}
-
-static int rfbi_remove(struct platform_device *pdev)
-{
-	component_del(&pdev->dev, &rfbi_component_ops);
-	return 0;
-}
-
-static int rfbi_runtime_suspend(struct device *dev)
-{
-	dispc_runtime_put();
-
-	return 0;
-}
-
-static int rfbi_runtime_resume(struct device *dev)
-{
-	int r;
-
-	r = dispc_runtime_get();
-	if (r < 0)
-		return r;
-
-	return 0;
-}
-
-static const struct dev_pm_ops rfbi_pm_ops = {
-	.runtime_suspend = rfbi_runtime_suspend,
-	.runtime_resume = rfbi_runtime_resume,
-};
-
-static struct platform_driver omap_rfbihw_driver = {
-	.probe		= rfbi_probe,
-	.remove         = rfbi_remove,
-	.driver         = {
-		.name   = "omapdss_rfbi",
-		.pm	= &rfbi_pm_ops,
-		.suppress_bind_attrs = true,
-	},
-};
-
-int __init rfbi_init_platform_driver(void)
-{
-	return platform_driver_register(&omap_rfbihw_driver);
-}
-
-void rfbi_uninit_platform_driver(void)
-{
-	platform_driver_unregister(&omap_rfbihw_driver);
-}
Index: b/include/video/omapfb_dss.h
===================================================================
--- a/include/video/omapfb_dss.h	2018-04-27 16:24:48.171632007 +0200
+++ b/include/video/omapfb_dss.h	2018-04-27 16:26:58.563635291 +0200
@@ -118,11 +118,6 @@ enum omap_dss_trans_key_type {
 	OMAP_DSS_COLOR_KEY_VID_SRC = 1,
 };
 
-enum omap_rfbi_te_mode {
-	OMAP_DSS_RFBI_TE_MODE_1 = 1,
-	OMAP_DSS_RFBI_TE_MODE_2 = 2,
-};
-
 enum omap_dss_signal_level {
 	OMAPDSS_SIG_ACTIVE_LOW,
 	OMAPDSS_SIG_ACTIVE_HIGH,
@@ -193,27 +188,6 @@ enum omap_dss_output_id {
 	OMAP_DSS_OUTPUT_HDMI	= 1 << 6,
 };
 
-/* RFBI */
-
-struct rfbi_timings {
-	int cs_on_time;
-	int cs_off_time;
-	int we_on_time;
-	int we_off_time;
-	int re_on_time;
-	int re_off_time;
-	int we_cycle_time;
-	int re_cycle_time;
-	int cs_pulse_width;
-	int access_time;
-
-	int clk_div;
-
-	u32 tim[5];             /* set by rfbi_convert_timings() */
-
-	int converted;
-};
-
 /* DSI */
 
 enum omap_dss_dsi_trans_mode {
@@ -645,11 +619,6 @@ struct omap_dss_device {
 		} dpi;
 
 		struct {
-			u8 channel;
-			u8 data_lines;
-		} rfbi;
-
-		struct {
 			u8 datapairs;
 		} sdi;
 
@@ -672,7 +641,6 @@ struct omap_dss_device {
 
 	struct {
 		u8 pixel_size;
-		struct rfbi_timings rfbi_timings;
 	} ctrl;
 
 	const char *name;