2005-04-17 06:20:36 +08:00
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/*
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* linux/arch/arm/mach-integrator/impd1.c
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*
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* Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This file provides the core support for the IM-PD1 module.
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*
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* Module / boot parameters.
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* lmid=n impd1.lmid=n - set the logic module position in stack to 'n'
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/errno.h>
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#include <linux/mm.h>
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2006-01-07 21:52:45 +08:00
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#include <linux/amba/bus.h>
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#include <linux/amba/clcd.h>
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2008-09-06 19:10:45 +08:00
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#include <linux/io.h>
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2012-11-21 05:39:49 +08:00
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#include <linux/platform_data/clk-integrator.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 16:04:11 +08:00
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#include <linux/slab.h>
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2013-11-22 06:13:17 +08:00
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#include <linux/irqchip/arm-vic.h>
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2005-04-17 06:20:36 +08:00
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#include <asm/sizes.h>
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2014-02-14 03:01:41 +08:00
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#include "lm.h"
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2014-02-14 03:07:26 +08:00
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#include "impd1.h"
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2005-04-17 06:20:36 +08:00
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static int module_id;
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module_param_named(lmid, module_id, int, 0444);
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MODULE_PARM_DESC(lmid, "logic module stack position");
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struct impd1_module {
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void __iomem *base;
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2013-11-22 06:13:17 +08:00
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void __iomem *vic_base;
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2010-03-02 00:18:39 +08:00
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};
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2005-04-17 06:20:36 +08:00
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void impd1_tweak_control(struct device *dev, u32 mask, u32 val)
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{
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struct impd1_module *impd1 = dev_get_drvdata(dev);
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u32 cur;
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val &= mask;
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cur = readl(impd1->base + IMPD1_CTRL) & ~mask;
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writel(cur | val, impd1->base + IMPD1_CTRL);
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}
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EXPORT_SYMBOL(impd1_tweak_control);
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/*
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* CLCD support
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*/
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#define PANEL PROSPECTOR
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#define LTM10C209 1
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#define PROSPECTOR 2
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#define SVGA 3
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#define VGA 4
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#if PANEL == VGA
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#define PANELTYPE vga
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static struct clcd_panel vga = {
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.mode = {
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.name = "VGA",
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.refresh = 60,
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.xres = 640,
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.yres = 480,
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.pixclock = 39721,
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.left_margin = 40,
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.right_margin = 24,
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.upper_margin = 32,
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.lower_margin = 11,
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.hsync_len = 96,
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.vsync_len = 2,
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.sync = 0,
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.vmode = FB_VMODE_NONINTERLACED,
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},
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.width = -1,
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.height = -1,
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.tim2 = TIM2_BCD | TIM2_IPC,
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.cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
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2011-01-19 04:10:10 +08:00
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.caps = CLCD_CAP_5551,
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2005-04-17 06:20:36 +08:00
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.connector = IMPD1_CTRL_DISP_VGA,
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.bpp = 16,
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.grayscale = 0,
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};
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#elif PANEL == SVGA
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#define PANELTYPE svga
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static struct clcd_panel svga = {
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.mode = {
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.name = "SVGA",
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.refresh = 0,
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.xres = 800,
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.yres = 600,
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.pixclock = 27778,
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.left_margin = 20,
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.right_margin = 20,
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.upper_margin = 5,
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.lower_margin = 5,
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.hsync_len = 164,
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.vsync_len = 62,
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.sync = 0,
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.vmode = FB_VMODE_NONINTERLACED,
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},
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.width = -1,
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.height = -1,
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.tim2 = TIM2_BCD,
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.cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
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.connector = IMPD1_CTRL_DISP_VGA,
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2011-01-19 04:10:10 +08:00
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.caps = CLCD_CAP_5551,
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2005-04-17 06:20:36 +08:00
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.bpp = 16,
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.grayscale = 0,
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};
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#elif PANEL == PROSPECTOR
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#define PANELTYPE prospector
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static struct clcd_panel prospector = {
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.mode = {
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.name = "PROSPECTOR",
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.refresh = 0,
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.xres = 640,
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.yres = 480,
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.pixclock = 40000,
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.left_margin = 33,
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.right_margin = 64,
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.upper_margin = 36,
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.lower_margin = 7,
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.hsync_len = 64,
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.vsync_len = 25,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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.vmode = FB_VMODE_NONINTERLACED,
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},
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.width = -1,
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.height = -1,
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.tim2 = TIM2_BCD,
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.cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
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2011-01-19 04:10:10 +08:00
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.caps = CLCD_CAP_5551,
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2005-04-17 06:20:36 +08:00
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.fixedtimings = 1,
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.connector = IMPD1_CTRL_DISP_LCD,
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.bpp = 16,
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.grayscale = 0,
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};
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#elif PANEL == LTM10C209
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#define PANELTYPE ltm10c209
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/*
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* Untested.
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*/
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static struct clcd_panel ltm10c209 = {
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.mode = {
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.name = "LTM10C209",
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.refresh = 0,
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.xres = 640,
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.yres = 480,
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.pixclock = 40000,
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.left_margin = 20,
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.right_margin = 20,
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.upper_margin = 19,
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.lower_margin = 19,
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.hsync_len = 20,
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.vsync_len = 10,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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.vmode = FB_VMODE_NONINTERLACED,
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},
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.width = -1,
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.height = -1,
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.tim2 = TIM2_BCD,
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.cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
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2011-01-19 04:10:10 +08:00
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.caps = CLCD_CAP_5551,
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2005-04-17 06:20:36 +08:00
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.fixedtimings = 1,
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.connector = IMPD1_CTRL_DISP_LCD,
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.bpp = 16,
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.grayscale = 0,
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};
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#endif
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/*
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* Disable all display connectors on the interface module.
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*/
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static void impd1fb_clcd_disable(struct clcd_fb *fb)
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{
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impd1_tweak_control(fb->dev->dev.parent, IMPD1_CTRL_DISP_MASK, 0);
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}
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/*
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* Enable the relevant connector on the interface module.
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*/
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static void impd1fb_clcd_enable(struct clcd_fb *fb)
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{
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impd1_tweak_control(fb->dev->dev.parent, IMPD1_CTRL_DISP_MASK,
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fb->panel->connector | IMPD1_CTRL_DISP_ENABLE);
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}
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static int impd1fb_clcd_setup(struct clcd_fb *fb)
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{
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unsigned long framebase = fb->dev->res.start + 0x01000000;
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unsigned long framesize = SZ_1M;
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int ret = 0;
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fb->panel = &PANELTYPE;
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if (!request_mem_region(framebase, framesize, "clcd framebuffer")) {
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printk(KERN_ERR "IM-PD1: unable to reserve framebuffer\n");
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return -EBUSY;
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}
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fb->fb.screen_base = ioremap(framebase, framesize);
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if (!fb->fb.screen_base) {
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printk(KERN_ERR "IM-PD1: unable to map framebuffer\n");
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ret = -ENOMEM;
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goto free_buffer;
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}
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fb->fb.fix.smem_start = framebase;
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fb->fb.fix.smem_len = framesize;
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return 0;
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free_buffer:
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release_mem_region(framebase, framesize);
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return ret;
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}
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static int impd1fb_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
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{
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unsigned long start, size;
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start = vma->vm_pgoff + (fb->fb.fix.smem_start >> PAGE_SHIFT);
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size = vma->vm_end - vma->vm_start;
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return remap_pfn_range(vma, vma->vm_start, start, size,
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vma->vm_page_prot);
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}
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static void impd1fb_clcd_remove(struct clcd_fb *fb)
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{
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iounmap(fb->fb.screen_base);
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release_mem_region(fb->fb.fix.smem_start, fb->fb.fix.smem_len);
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}
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static struct clcd_board impd1_clcd_data = {
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.name = "IM-PD/1",
|
2011-01-19 04:10:10 +08:00
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.caps = CLCD_CAP_5551 | CLCD_CAP_888,
|
2005-04-17 06:20:36 +08:00
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.check = clcdfb_check,
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.decode = clcdfb_decode,
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.disable = impd1fb_clcd_disable,
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.enable = impd1fb_clcd_enable,
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.setup = impd1fb_clcd_setup,
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.mmap = impd1fb_clcd_mmap,
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.remove = impd1fb_clcd_remove,
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};
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struct impd1_device {
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unsigned long offset;
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unsigned int irq[2];
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unsigned int id;
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void *platform_data;
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};
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static struct impd1_device impd1_devs[] = {
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{
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.offset = 0x00100000,
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.irq = { 1 },
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.id = 0x00141011,
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}, {
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.offset = 0x00200000,
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.irq = { 2 },
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.id = 0x00141011,
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}, {
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.offset = 0x00300000,
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.irq = { 3 },
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.id = 0x00041022,
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}, {
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.offset = 0x00400000,
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.irq = { 4 },
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.id = 0x00041061,
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}, {
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.offset = 0x00500000,
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.irq = { 5 },
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.id = 0x00041061,
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}, {
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.offset = 0x00600000,
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.irq = { 6 },
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.id = 0x00041130,
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}, {
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.offset = 0x00700000,
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.irq = { 7, 8 },
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.id = 0x00041181,
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}, {
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.offset = 0x00800000,
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.irq = { 9 },
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.id = 0x00041041,
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}, {
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.offset = 0x01000000,
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.irq = { 11 },
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.id = 0x00041110,
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.platform_data = &impd1_clcd_data,
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}
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};
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|
2013-11-22 06:13:17 +08:00
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/*
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* Valid IRQs: 0 thru 9 and 11, 10 unused.
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*/
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#define IMPD1_VALID_IRQS 0x00000bffU
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|
2014-06-04 20:47:28 +08:00
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/*
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* As this module is bool, it is OK to have this as __init_refok() - no
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* probe calls will be done after the initial system bootup, as devices
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* are discovered as part of the machine startup.
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*/
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static int __init_refok impd1_probe(struct lm_device *dev)
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2005-04-17 06:20:36 +08:00
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{
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struct impd1_module *impd1;
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2013-11-22 06:13:17 +08:00
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int irq_base;
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2013-11-22 06:21:10 +08:00
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int i;
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2005-04-17 06:20:36 +08:00
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if (dev->id != module_id)
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return -EINVAL;
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2013-11-22 06:21:10 +08:00
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if (!devm_request_mem_region(&dev->dev, dev->resource.start,
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SZ_4K, "LM registers"))
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2005-04-17 06:20:36 +08:00
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return -EBUSY;
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2013-11-22 06:21:10 +08:00
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impd1 = devm_kzalloc(&dev->dev, sizeof(struct impd1_module),
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GFP_KERNEL);
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if (!impd1)
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return -ENOMEM;
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2005-04-17 06:20:36 +08:00
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2013-11-22 06:21:10 +08:00
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impd1->base = devm_ioremap(&dev->dev, dev->resource.start, SZ_4K);
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if (!impd1->base)
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return -ENOMEM;
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2005-04-17 06:20:36 +08:00
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2013-11-22 06:13:17 +08:00
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integrator_impd1_clk_init(impd1->base, dev->id);
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if (!devm_request_mem_region(&dev->dev,
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dev->resource.start + 0x03000000,
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SZ_4K, "VIC"))
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return -EBUSY;
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2005-04-17 06:20:36 +08:00
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2013-11-22 06:13:17 +08:00
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impd1->vic_base = devm_ioremap(&dev->dev,
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dev->resource.start + 0x03000000,
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SZ_4K);
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if (!impd1->vic_base)
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return -ENOMEM;
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2005-04-17 06:20:36 +08:00
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2013-11-22 06:13:17 +08:00
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irq_base = vic_init_cascaded(impd1->vic_base, dev->irq,
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IMPD1_VALID_IRQS, 0);
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lm_set_drvdata(dev, impd1);
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dev_info(&dev->dev, "IM-PD1 found at 0x%08lx\n",
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(unsigned long)dev->resource.start);
|
2008-11-09 04:08:08 +08:00
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|
2005-04-17 06:20:36 +08:00
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for (i = 0; i < ARRAY_SIZE(impd1_devs); i++) {
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struct impd1_device *idev = impd1_devs + i;
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struct amba_device *d;
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unsigned long pc_base;
|
2012-04-03 18:59:50 +08:00
|
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|
char devname[32];
|
2013-11-22 06:13:17 +08:00
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int irq1 = idev->irq[0];
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int irq2 = idev->irq[1];
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/* Translate IRQs to IM-PD1 local numberspace */
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|
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if (irq1)
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irq1 += irq_base;
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|
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if (irq2)
|
|
|
|
irq2 += irq_base;
|
2005-04-17 06:20:36 +08:00
|
|
|
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|
|
|
pc_base = dev->resource.start + idev->offset;
|
2012-04-03 18:59:50 +08:00
|
|
|
snprintf(devname, 32, "lm%x:%5.5lx", dev->id, idev->offset >> 12);
|
2012-11-30 23:31:13 +08:00
|
|
|
d = amba_ahb_device_add_res(&dev->dev, devname, pc_base, SZ_4K,
|
2013-11-22 06:13:17 +08:00
|
|
|
irq1, irq2,
|
2012-11-30 23:31:13 +08:00
|
|
|
idev->platform_data, idev->id,
|
|
|
|
&dev->resource);
|
2012-04-03 18:59:50 +08:00
|
|
|
if (IS_ERR(d)) {
|
|
|
|
dev_err(&dev->dev, "unable to register device: %ld\n", PTR_ERR(d));
|
2005-04-17 06:20:36 +08:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-10-21 17:17:37 +08:00
|
|
|
static int impd1_remove_one(struct device *dev, void *data)
|
|
|
|
{
|
|
|
|
device_unregister(dev);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
static void impd1_remove(struct lm_device *dev)
|
|
|
|
{
|
2005-10-21 17:17:37 +08:00
|
|
|
device_for_each_child(&dev->dev, NULL, impd1_remove_one);
|
2012-11-21 05:39:49 +08:00
|
|
|
integrator_impd1_clk_exit(dev->id);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
lm_set_drvdata(dev, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct lm_driver impd1_driver = {
|
|
|
|
.drv = {
|
|
|
|
.name = "impd1",
|
2014-06-04 20:47:28 +08:00
|
|
|
/*
|
|
|
|
* As we're dropping the probe() function, suppress driver
|
|
|
|
* binding from sysfs.
|
|
|
|
*/
|
|
|
|
.suppress_bind_attrs = true,
|
2005-04-17 06:20:36 +08:00
|
|
|
},
|
|
|
|
.probe = impd1_probe,
|
|
|
|
.remove = impd1_remove,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int __init impd1_init(void)
|
|
|
|
{
|
|
|
|
return lm_driver_register(&impd1_driver);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit impd1_exit(void)
|
|
|
|
{
|
|
|
|
lm_driver_unregister(&impd1_driver);
|
|
|
|
}
|
|
|
|
|
|
|
|
module_init(impd1_init);
|
|
|
|
module_exit(impd1_exit);
|
|
|
|
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
MODULE_DESCRIPTION("Integrator/IM-PD1 logic module core driver");
|
|
|
|
MODULE_AUTHOR("Deep Blue Solutions Ltd");
|