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ARM: OMAP2+: Add quirk support for legacy platform data init 

We want to drop the board-*.c files but keep things working.
Let's make it a bit easier to support legacy platform data
init with quirks. This also keeps board-generic.c clean from
board specific hacks.

For now, the quirks table is empty, that is populated
in the later patches.

Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2013-09-25 15:44:39 -07:00
parent f2acae69a2
commit 6a08e1e6f7
4 changed files with 43 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-omap2/Makefile
View File

@ -233,7 +233,7 @@ obj-y += drm.o
endif
# Specific board support
obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o
obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o pdata-quirks.o
obj-$(CONFIG_MACH_OMAP_H4) += board-h4.o
obj-$(CONFIG_MACH_OMAP_2430SDP) += board-2430sdp.o
obj-$(CONFIG_MACH_OMAP3_BEAGLE) += board-omap3beagle.o

1
arch/arm/mach-omap2/board-generic.c
View File

@ -56,6 +56,7 @@ static void __init omap_generic_init(void)
omap_sdrc_init(NULL, NULL);
of_platform_populate(NULL, omap_dt_match_table, NULL, NULL);
pdata_quirks_init();
/*
* HACK: call display setup code for selected boards to enable omapdss.

2
arch/arm/mach-omap2/common.h
View File

@ -288,6 +288,8 @@ static inline void omap4_cpu_resume(void)
#endif
void pdata_quirks_init(void);
struct omap_sdrc_params;
extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
struct omap_sdrc_params *sdrc_cs1);

39
arch/arm/mach-omap2/pdata-quirks.c Normal file
View File

@ -0,0 +1,39 @@
/*
* Legacy platform_data quirks
*
* Copyright (C) 2013 Texas Instruments
*
* 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.
*/
#include <linux/clk.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include "common.h"
#include "common-board-devices.h"
#include "dss-common.h"
struct pdata_init {
const char *compatible;
void (*fn)(void);
};
static struct pdata_init pdata_quirks[] __initdata = {
{ /* sentinel */ },
};
void __init pdata_quirks_init(void)
{
struct pdata_init *quirks = pdata_quirks;
while (quirks->compatible) {
if (of_machine_is_compatible(quirks->compatible)) {
if (quirks->fn)
quirks->fn();
break;
}
quirks++;
}
}