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omap1: LCD_DMA: Use some define rather than a hexadecimal

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The patch corrects the issue introduced with one of my earlier patches:
	OMAP: DMA: Fix omapfb/lcdc on OMAP1510 broken when PM set[1]
as pointed out by OMAP subsystem maintainer.

Applies on top of my prevoius patch:
  OMAP: DMA: move LCD DMA related code from plat-omap to mach-omap1[2]

Tested on Amstrad Delta
Compile tested with omap_generic_2420_defconfig

[1] http://patchwork.kernel.org/patch/57922/
[2] http://patchwork.kernel.org/patch/61952/

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Janusz Krzysztofik 2009-12-11 16:16:36 -08:00 committed by Tony Lindgren
parent 9cb87a6b44
commit 8d72c796c9
3 changed files with 60 additions and 33 deletions
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57
arch/arm/mach-omap1/include/mach/lcdc.h Normal file
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@ -0,0 +1,57 @@
/*
* arch/arm/mach-omap1/include/mach/lcdc.h
*
* Extracted from drivers/video/omap/lcdc.c
* Copyright (C) 2004 Nokia Corporation
* Author: Imre Deak <imre.deak@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_LCDC_H__
#define __MACH_LCDC_H__
#define OMAP_LCDC_BASE 0xfffec000
#define OMAP_LCDC_SIZE 256
#define OMAP_LCDC_IRQ INT_LCD_CTRL
#define OMAP_LCDC_CONTROL (OMAP_LCDC_BASE + 0x00)
#define OMAP_LCDC_TIMING0 (OMAP_LCDC_BASE + 0x04)
#define OMAP_LCDC_TIMING1 (OMAP_LCDC_BASE + 0x08)
#define OMAP_LCDC_TIMING2 (OMAP_LCDC_BASE + 0x0c)
#define OMAP_LCDC_STATUS (OMAP_LCDC_BASE + 0x10)
#define OMAP_LCDC_SUBPANEL (OMAP_LCDC_BASE + 0x14)
#define OMAP_LCDC_LINE_INT (OMAP_LCDC_BASE + 0x18)
#define OMAP_LCDC_DISPLAY_STATUS (OMAP_LCDC_BASE + 0x1c)
#define OMAP_LCDC_STAT_DONE (1 << 0)
#define OMAP_LCDC_STAT_VSYNC (1 << 1)
#define OMAP_LCDC_STAT_SYNC_LOST (1 << 2)
#define OMAP_LCDC_STAT_ABC (1 << 3)
#define OMAP_LCDC_STAT_LINE_INT (1 << 4)
#define OMAP_LCDC_STAT_FUF (1 << 5)
#define OMAP_LCDC_STAT_LOADED_PALETTE (1 << 6)
#define OMAP_LCDC_CTRL_LCD_EN (1 << 0)
#define OMAP_LCDC_CTRL_LCD_TFT (1 << 7)
#define OMAP_LCDC_CTRL_LINE_IRQ_CLR_SEL (1 << 10)
#define OMAP_LCDC_IRQ_VSYNC (1 << 2)
#define OMAP_LCDC_IRQ_DONE (1 << 3)
#define OMAP_LCDC_IRQ_LOADED_PALETTE (1 << 4)
#define OMAP_LCDC_IRQ_LINE_NIRQ (1 << 5)
#define OMAP_LCDC_IRQ_LINE (1 << 6)
#define OMAP_LCDC_IRQ_MASK (((1 << 5) - 1) << 2)
#endif /* __MACH_LCDC_H__ */

3
arch/arm/mach-omap1/lcd_dma.c
View File

@ -28,6 +28,7 @@
#include <linux/io.h>
#include <mach/hardware.h>
#include <mach/lcdc.h>
#include <plat/dma.h>
int omap_lcd_dma_running(void)
@ -37,7 +38,7 @@ int omap_lcd_dma_running(void)
* when it gets enabled, so assume DMA running if LCD enabled.
*/
if (cpu_is_omap1510())
if (omap_readw(0xfffec000 + 0x00) & (1 << 0))
if (omap_readw(OMAP_LCDC_CONTROL) & OMAP_LCDC_CTRL_LCD_EN)
return 1;
/* Check if LCD DMA is running */

33
drivers/video/omap/lcdc.c
View File

@ -29,6 +29,7 @@
#include <linux/vmalloc.h>
#include <linux/clk.h>
#include <mach/lcdc.h>
#include <plat/dma.h>
#include <asm/mach-types.h>
@ -39,38 +40,6 @@
#define MODULE_NAME "lcdc"
#define OMAP_LCDC_BASE 0xfffec000
#define OMAP_LCDC_SIZE 256
#define OMAP_LCDC_IRQ INT_LCD_CTRL
#define OMAP_LCDC_CONTROL (OMAP_LCDC_BASE + 0x00)
#define OMAP_LCDC_TIMING0 (OMAP_LCDC_BASE + 0x04)
#define OMAP_LCDC_TIMING1 (OMAP_LCDC_BASE + 0x08)
#define OMAP_LCDC_TIMING2 (OMAP_LCDC_BASE + 0x0c)
#define OMAP_LCDC_STATUS (OMAP_LCDC_BASE + 0x10)
#define OMAP_LCDC_SUBPANEL (OMAP_LCDC_BASE + 0x14)
#define OMAP_LCDC_LINE_INT (OMAP_LCDC_BASE + 0x18)
#define OMAP_LCDC_DISPLAY_STATUS (OMAP_LCDC_BASE + 0x1c)
#define OMAP_LCDC_STAT_DONE (1 << 0)
#define OMAP_LCDC_STAT_VSYNC (1 << 1)
#define OMAP_LCDC_STAT_SYNC_LOST (1 << 2)
#define OMAP_LCDC_STAT_ABC (1 << 3)
#define OMAP_LCDC_STAT_LINE_INT (1 << 4)
#define OMAP_LCDC_STAT_FUF (1 << 5)
#define OMAP_LCDC_STAT_LOADED_PALETTE (1 << 6)
#define OMAP_LCDC_CTRL_LCD_EN (1 << 0)
#define OMAP_LCDC_CTRL_LCD_TFT (1 << 7)
#define OMAP_LCDC_CTRL_LINE_IRQ_CLR_SEL (1 << 10)
#define OMAP_LCDC_IRQ_VSYNC (1 << 2)
#define OMAP_LCDC_IRQ_DONE (1 << 3)
#define OMAP_LCDC_IRQ_LOADED_PALETTE (1 << 4)
#define OMAP_LCDC_IRQ_LINE_NIRQ (1 << 5)
#define OMAP_LCDC_IRQ_LINE (1 << 6)
#define OMAP_LCDC_IRQ_MASK (((1 << 5) - 1) << 2)
#define MAX_PALETTE_SIZE PAGE_SIZE
enum lcdc_load_mode {