omap1: DMA: move LCD related code from plat-omap to mach-omap1

All of the LCD DMA code in plat-omap/dma.c appears to be OMAP1-only (and
apparently only is available on a subset of OMAP1 chips).

Move this code to mach-omap1/lcd_dma.c.

Tested on OMAP1510 Amstrad Delta.
Compile-tested with omap_generic_2420_defconfig.
Reported-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/Makefile

@@ -52,3 +52,7 @@ led-$(CONFIG_MACH_OMAP_INNOVATOR)	+= leds-innovator.o
 led-$(CONFIG_MACH_OMAP_PERSEUS2)	+= leds-h2p2-debug.o
 led-$(CONFIG_MACH_OMAP_OSK)		+= leds-osk.o
 obj-$(CONFIG_LEDS)			+= $(led-y)
+
+ifneq ($(CONFIG_FB_OMAP),)
+obj-y += lcd_dma.o
+endif

arch/arm/mach-omap1/include/mach/lcd_dma.h

+/*
+ *  arch/arm/mach-omap1/include/mach/lcd_dma.h
+ *
+ * Extracted from arch/arm/plat-omap/include/plat/dma.h
+ *  Copyright (C) 2003 Nokia Corporation
+ *  Author: Juha Yrjölä <juha.yrjola@nokia.com>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef __MACH_OMAP1_LCD_DMA_H__
+#define __MACH_OMAP1_LCD_DMA_H__
+
+/* Hardware registers for LCD DMA */
+#define OMAP1510_DMA_LCD_BASE		(0xfffedb00)
+#define OMAP1510_DMA_LCD_CTRL		(OMAP1510_DMA_LCD_BASE + 0x00)
+#define OMAP1510_DMA_LCD_TOP_F1_L	(OMAP1510_DMA_LCD_BASE + 0x02)
+#define OMAP1510_DMA_LCD_TOP_F1_U	(OMAP1510_DMA_LCD_BASE + 0x04)
+#define OMAP1510_DMA_LCD_BOT_F1_L	(OMAP1510_DMA_LCD_BASE + 0x06)
+#define OMAP1510_DMA_LCD_BOT_F1_U	(OMAP1510_DMA_LCD_BASE + 0x08)
+
+#define OMAP1610_DMA_LCD_BASE		(0xfffee300)
+#define OMAP1610_DMA_LCD_CSDP		(OMAP1610_DMA_LCD_BASE + 0xc0)
+#define OMAP1610_DMA_LCD_CCR		(OMAP1610_DMA_LCD_BASE + 0xc2)
+#define OMAP1610_DMA_LCD_CTRL		(OMAP1610_DMA_LCD_BASE + 0xc4)
+#define OMAP1610_DMA_LCD_TOP_B1_L	(OMAP1610_DMA_LCD_BASE + 0xc8)
+#define OMAP1610_DMA_LCD_TOP_B1_U	(OMAP1610_DMA_LCD_BASE + 0xca)
+#define OMAP1610_DMA_LCD_BOT_B1_L	(OMAP1610_DMA_LCD_BASE + 0xcc)
+#define OMAP1610_DMA_LCD_BOT_B1_U	(OMAP1610_DMA_LCD_BASE + 0xce)
+#define OMAP1610_DMA_LCD_TOP_B2_L	(OMAP1610_DMA_LCD_BASE + 0xd0)
+#define OMAP1610_DMA_LCD_TOP_B2_U	(OMAP1610_DMA_LCD_BASE + 0xd2)
+#define OMAP1610_DMA_LCD_BOT_B2_L	(OMAP1610_DMA_LCD_BASE + 0xd4)
+#define OMAP1610_DMA_LCD_BOT_B2_U	(OMAP1610_DMA_LCD_BASE + 0xd6)
+#define OMAP1610_DMA_LCD_SRC_EI_B1	(OMAP1610_DMA_LCD_BASE + 0xd8)
+#define OMAP1610_DMA_LCD_SRC_FI_B1_L	(OMAP1610_DMA_LCD_BASE + 0xda)
+#define OMAP1610_DMA_LCD_SRC_EN_B1	(OMAP1610_DMA_LCD_BASE + 0xe0)
+#define OMAP1610_DMA_LCD_SRC_FN_B1	(OMAP1610_DMA_LCD_BASE + 0xe4)
+#define OMAP1610_DMA_LCD_LCH_CTRL	(OMAP1610_DMA_LCD_BASE + 0xea)
+#define OMAP1610_DMA_LCD_SRC_FI_B1_U	(OMAP1610_DMA_LCD_BASE + 0xf4)
+
+/* LCD DMA block numbers */
+enum {
+	OMAP_LCD_DMA_B1_TOP,
+	OMAP_LCD_DMA_B1_BOTTOM,
+	OMAP_LCD_DMA_B2_TOP,
+	OMAP_LCD_DMA_B2_BOTTOM
+};
+
+/* LCD DMA functions */
+extern int omap_request_lcd_dma(void (*callback)(u16 status, void *data),
+				void *data);
+extern void omap_free_lcd_dma(void);
+extern void omap_setup_lcd_dma(void);
+extern void omap_enable_lcd_dma(void);
+extern void omap_stop_lcd_dma(void);
+extern void omap_set_lcd_dma_ext_controller(int external);
+extern void omap_set_lcd_dma_single_transfer(int single);
+extern void omap_set_lcd_dma_b1(unsigned long addr, u16 fb_xres, u16 fb_yres,
+				int data_type);
+extern void omap_set_lcd_dma_b1_rotation(int rotate);
+extern void omap_set_lcd_dma_b1_vxres(unsigned long vxres);
+extern void omap_set_lcd_dma_b1_mirror(int mirror);
+extern void omap_set_lcd_dma_b1_scale(unsigned int xscale, unsigned int yscale);
+
+extern int omap_lcd_dma_running(void);
+
+#endif /* __MACH_OMAP1_LCD_DMA_H__ */

arch/arm/plat-omap/include/plat/dma.h

@@ -401,33 +401,6 @@
 
 /*----------------------------------------------------------------------------*/
 
-/* Hardware registers for LCD DMA */
-#define OMAP1510_DMA_LCD_BASE		(0xfffedb00)
-#define OMAP1510_DMA_LCD_CTRL		(OMAP1510_DMA_LCD_BASE + 0x00)
-#define OMAP1510_DMA_LCD_TOP_F1_L	(OMAP1510_DMA_LCD_BASE + 0x02)
-#define OMAP1510_DMA_LCD_TOP_F1_U	(OMAP1510_DMA_LCD_BASE + 0x04)
-#define OMAP1510_DMA_LCD_BOT_F1_L	(OMAP1510_DMA_LCD_BASE + 0x06)
-#define OMAP1510_DMA_LCD_BOT_F1_U	(OMAP1510_DMA_LCD_BASE + 0x08)
-
-#define OMAP1610_DMA_LCD_BASE		(0xfffee300)
-#define OMAP1610_DMA_LCD_CSDP		(OMAP1610_DMA_LCD_BASE + 0xc0)
-#define OMAP1610_DMA_LCD_CCR		(OMAP1610_DMA_LCD_BASE + 0xc2)
-#define OMAP1610_DMA_LCD_CTRL		(OMAP1610_DMA_LCD_BASE + 0xc4)
-#define OMAP1610_DMA_LCD_TOP_B1_L	(OMAP1610_DMA_LCD_BASE + 0xc8)
-#define OMAP1610_DMA_LCD_TOP_B1_U	(OMAP1610_DMA_LCD_BASE + 0xca)
-#define OMAP1610_DMA_LCD_BOT_B1_L	(OMAP1610_DMA_LCD_BASE + 0xcc)
-#define OMAP1610_DMA_LCD_BOT_B1_U	(OMAP1610_DMA_LCD_BASE + 0xce)
-#define OMAP1610_DMA_LCD_TOP_B2_L	(OMAP1610_DMA_LCD_BASE + 0xd0)
-#define OMAP1610_DMA_LCD_TOP_B2_U	(OMAP1610_DMA_LCD_BASE + 0xd2)
-#define OMAP1610_DMA_LCD_BOT_B2_L	(OMAP1610_DMA_LCD_BASE + 0xd4)
-#define OMAP1610_DMA_LCD_BOT_B2_U	(OMAP1610_DMA_LCD_BASE + 0xd6)
-#define OMAP1610_DMA_LCD_SRC_EI_B1	(OMAP1610_DMA_LCD_BASE + 0xd8)
-#define OMAP1610_DMA_LCD_SRC_FI_B1_L	(OMAP1610_DMA_LCD_BASE + 0xda)
-#define OMAP1610_DMA_LCD_SRC_EN_B1	(OMAP1610_DMA_LCD_BASE + 0xe0)
-#define OMAP1610_DMA_LCD_SRC_FN_B1	(OMAP1610_DMA_LCD_BASE + 0xe4)
-#define OMAP1610_DMA_LCD_LCH_CTRL	(OMAP1610_DMA_LCD_BASE + 0xea)
-#define OMAP1610_DMA_LCD_SRC_FI_B1_U	(OMAP1610_DMA_LCD_BASE + 0xf4)
-
 #define OMAP1_DMA_TOUT_IRQ		(1 << 0)
 #define OMAP_DMA_DROP_IRQ		(1 << 1)
 #define OMAP_DMA_HALF_IRQ		(1 << 2)
@@ -441,6 +414,8 @@
 #define OMAP2_DMA_SUPERVISOR_ERR_IRQ	(1 << 10)
 #define OMAP2_DMA_MISALIGNED_ERR_IRQ	(1 << 11)
 
+#define OMAP_DMA_CCR_EN			(1 << 7)
+
 #define OMAP_DMA_DATA_TYPE_S8		0x00
 #define OMAP_DMA_DATA_TYPE_S16		0x01
 #define OMAP_DMA_DATA_TYPE_S32		0x02
@@ -503,14 +478,6 @@
 #define DMA_CH_PRIO_HIGH		0x1
 #define DMA_CH_PRIO_LOW			0x0 /* Def */
 
-/* LCD DMA block numbers */
-enum {
-	OMAP_LCD_DMA_B1_TOP,
-	OMAP_LCD_DMA_B1_BOTTOM,
-	OMAP_LCD_DMA_B2_TOP,
-	OMAP_LCD_DMA_B2_BOTTOM
-};
-
 enum omap_dma_burst_mode {
 	OMAP_DMA_DATA_BURST_DIS = 0,
 	OMAP_DMA_DATA_BURST_4,
@@ -661,20 +628,13 @@ extern int omap_modify_dma_chain_params(int chain_id,
 extern int omap_dma_chain_status(int chain_id);
 #endif
 
-/* LCD DMA functions */
-extern int omap_request_lcd_dma(void (*callback)(u16 status, void *data),
-				void *data);
-extern void omap_free_lcd_dma(void);
-extern void omap_setup_lcd_dma(void);
-extern void omap_enable_lcd_dma(void);
-extern void omap_stop_lcd_dma(void);
-extern void omap_set_lcd_dma_ext_controller(int external);
-extern void omap_set_lcd_dma_single_transfer(int single);
-extern void omap_set_lcd_dma_b1(unsigned long addr, u16 fb_xres, u16 fb_yres,
-				int data_type);
-extern void omap_set_lcd_dma_b1_rotation(int rotate);
-extern void omap_set_lcd_dma_b1_vxres(unsigned long vxres);
-extern void omap_set_lcd_dma_b1_mirror(int mirror);
-extern void omap_set_lcd_dma_b1_scale(unsigned int xscale, unsigned int yscale);
+#if defined(CONFIG_ARCH_OMAP1) && defined(CONFIG_FB_OMAP)
+#include <mach/lcd_dma.h>
+#else
+static inline int omap_lcd_dma_running(void)
+{
+	return 0;
+}
+#endif
 
 #endif /* __ASM_ARCH_DMA_H */