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
Signed-off-by: Janusz Krzysztofik <[email protected]>
[1] http://patchwork.kernel.org/patch/57922/
[2] http://patchwork.kernel.org/patch/61952/
---
Tuesday 17 November 2009 17:10:58 Tony Lindgren wrote:
> * Janusz Krzysztofik <[email protected]> [091117 02:45]:
> >
> > 1. While keeping those hex constants as they are for now, solve the issue
> > during refactoring arch/arm/plat-omap/dma.c for a separate
> > arch/arm/mach-omap1/lcd_dma.c, as Paul suggested (may take some time).
> > Since the register test would be put there, some headers will have to be
> > moved out of drivers/video/omap/lcdc.c anyway.
>
> This sounds like the best way to go to me.
Tony,
At your service :-).
Since it's very similiar to reverted v3[*], I hope you have no problems with
this one.
Thanks,
Janusz
[*] http://patchwork.kernel.org/patch/60478/
diff -uprN git.orig/arch/arm/mach-omap1/include/mach/lcdc.h
git/arch/arm/mach-omap1/include/mach/lcdc.h
--- git.orig/arch/arm/mach-omap1/include/mach/lcdc.h 1970-01-01
01:00:00.000000000 +0100
+++ git/arch/arm/mach-omap1/include/mach/lcdc.h 2009-11-21 03:26:32.000000000
+0100
@@ -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 <[email protected]>
+ *
+ * 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__ */
diff -uprN git.orig/arch/arm/mach-omap1/lcd_dma.c
git/arch/arm/mach-omap1/lcd_dma.c
--- git/arch/arm/mach-omap1/lcd_dma.c 2009-11-21 14:36:59.000000000 +0100
+++ git.orig/arch/arm/mach-omap1/lcd_dma.c 2009-11-21 03:42:25.000000000
+0100
@@ -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 */
diff -uprN git.orig/drivers/video/omap/lcdc.c git/drivers/video/omap/lcdc.c
--- git.orig/drivers/video/omap/lcdc.c 2009-11-21 14:33:16.000000000 +0100
+++ git/drivers/video/omap/lcdc.c 2009-11-21 02:17:17.000000000 +0100
@@ -29,6 +29,7 @@
#include <linux/vmalloc.h>
#include <linux/clk.h>
+#include <mach/lcdc.h>
#include <plat/dma.h>
#include <plat/omapfb.h>
@@ -38,38 +39,6 @@
#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 {
--
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