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ARM: OMAP2+: clockdomains: make {prm,cm}_clkdm common

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The PRM and CM implicit clockdomains will soon be used by OMAP44xx.
So, make them common to OMAP2+ and modify the OMAP4 clockdomains code
so use of these clockdomains doesn't crash the system.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
This commit is contained in:
Paul Walmsley 2012-04-19 13:33:49 -06:00
parent 3af35fbcd0
commit 6ba5a69ee9
5 changed files with 37 additions and 13 deletions
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8
arch/arm/mach-omap2/Makefile
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@ -118,16 +118,18 @@ obj-$(CONFIG_ARCH_OMAP4) += $(powerdomain-common) \
powerdomains44xx_data.o
# PRCM clockdomain control
obj-$(CONFIG_ARCH_OMAP2) += clockdomain.o \
clockdomain-common += clockdomain.o \
clockdomains_common_data.o
obj-$(CONFIG_ARCH_OMAP2) += $(clockdomain-common) \
clockdomain2xxx_3xxx.o \
clockdomains2xxx_3xxx_data.o
obj-$(CONFIG_SOC_OMAP2420) += clockdomains2420_data.o
obj-$(CONFIG_SOC_OMAP2430) += clockdomains2430_data.o
obj-$(CONFIG_ARCH_OMAP3) += clockdomain.o \
obj-$(CONFIG_ARCH_OMAP3) += $(clockdomain-common) \
clockdomain2xxx_3xxx.o \
clockdomains2xxx_3xxx_data.o \
clockdomains3xxx_data.o
obj-$(CONFIG_ARCH_OMAP4) += clockdomain.o \
obj-$(CONFIG_ARCH_OMAP4) += $(clockdomain-common) \
clockdomain44xx.o \
clockdomains44xx_data.o

6
arch/arm/mach-omap2/clockdomain44xx.c
View File

@ -51,6 +51,9 @@ static int omap4_clkdm_clear_all_wkup_sleep_deps(struct clockdomain *clkdm)
struct clkdm_dep *cd;
u32 mask = 0;
if (!clkdm->prcm_partition)
return 0;
for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) {
if (!cd->clkdm)
continue; /* only happens if data is erroneous */
@ -103,6 +106,9 @@ static int omap4_clkdm_clk_disable(struct clockdomain *clkdm)
{
bool hwsup = false;
if (!clkdm->prcm_partition)
return 0;
hwsup = omap4_cminst_is_clkdm_in_hwsup(clkdm->prcm_partition,
clkdm->cm_inst, clkdm->clkdm_offs);

10
arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
View File

@ -89,13 +89,3 @@ struct clockdomain wkup_common_clkdm = {
.pwrdm = { .name = "wkup_pwrdm" },
.dep_bit = OMAP_EN_WKUP_SHIFT,
};
struct clockdomain prm_common_clkdm = {
.name = "prm_clkdm",
.pwrdm = { .name = "wkup_pwrdm" },
};
struct clockdomain cm_common_clkdm = {
.name = "cm_clkdm",
.pwrdm = { .name = "core_pwrdm" },
};

2
arch/arm/mach-omap2/clockdomains44xx_data.c
View File

@ -430,6 +430,8 @@ static struct clockdomain *clockdomains_omap44xx[] __initdata = {
&l4_wkup_44xx_clkdm,
&emu_sys_44xx_clkdm,
&l3_dma_44xx_clkdm,
&prm_common_clkdm,
&cm_common_clkdm,
NULL
};

24
arch/arm/mach-omap2/clockdomains_common_data.c Normal file
View File

@ -0,0 +1,24 @@
/*
* OMAP2+-common clockdomain data
*
* Copyright (C) 2008-2012 Texas Instruments, Inc.
* Copyright (C) 2008-2010 Nokia Corporation
*
* Paul Walmsley, Jouni Högander
*/
#include <linux/kernel.h>
#include <linux/io.h>
#include "clockdomain.h"
/* These are implicit clockdomains - they are never defined as such in TRM */
struct clockdomain prm_common_clkdm = {
.name = "prm_clkdm",
.pwrdm = { .name = "wkup_pwrdm" },
};
struct clockdomain cm_common_clkdm = {
.name = "cm_clkdm",
.pwrdm = { .name = "core_pwrdm" },
};