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| author | Paul Walmsley <paul@pwsan.com> | 2010-12-22 07:05:14 +0300 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2010-12-22 07:05:14 +0300 |
| commit | a64bb9cda8b12f599766c7dfe81770d2082a133a (patch) | |
| tree | 29886a8c126757dde407a315220e69d1b6a4554a /arch/arm/mach-omap2/powerdomain.c | |
| parent | c4d7e58fb52c632d8e33cd23a4917d7a7f8302ac (diff) | |
| download | linux-a64bb9cda8b12f599766c7dfe81770d2082a133a.tar.xz | |
OMAP4: powerdomains: add PRCM partition data; use OMAP4 PRM functions
OMAP4 powerdomain control registers are split between the PRM hardware
module and the PRCM_MPU local PRCM. Add this PRCM partition
information to each OMAP4 powerdomain record, and convert the OMAP4
powerdomain function implementations to use the OMAP4 PRM instance
functions.
Also fixes a potential null pointer dereference of pwrdm->name.
The autogeneration scripts have been updated.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Rajendra Nayak <rnayak@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2/powerdomain.c')
| -rw-r--r-- | arch/arm/mach-omap2/powerdomain.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c index 8a0dcd05afeb..a76ad3f0ca65 100644 --- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/powerdomain.c @@ -20,6 +20,7 @@ #include <linux/errno.h> #include <linux/string.h> #include "cm2xxx_3xxx.h" +#include "prcm44xx.h" #include "cm44xx.h" #include "prm2xxx_3xxx.h" #include "prm44xx.h" @@ -72,12 +73,19 @@ static int _pwrdm_register(struct powerdomain *pwrdm) { int i; - if (!pwrdm) + if (!pwrdm || !pwrdm->name) return -EINVAL; if (!omap_chip_is(pwrdm->omap_chip)) return -EINVAL; + if (cpu_is_omap44xx() && + pwrdm->prcm_partition == OMAP4430_INVALID_PRCM_PARTITION) { + pr_err("powerdomain: %s: missing OMAP4 PRCM partition ID\n", + pwrdm->name); + return -EINVAL; + } + if (_pwrdm_lookup(pwrdm->name)) return -EEXIST; |