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authorArnd Bergmann <arnd@arndb.de>2012-07-21 23:22:35 +0200
committerArnd Bergmann <arnd@arndb.de>2012-07-21 23:22:35 +0200
commit2d05bf6ef7391ac3642ab62bc3a649fdb32731fe (patch)
treea8671f0eafa885b4f3ad05204e3ed642b6acab59 /arch/arm/mach-omap2/omap_hwmod.c
parent9c63cd5a955ce8a3de1776a9e4b6b89c69b2a09e (diff)
parent8c0383b8f6a8012b107cd62eaa5a556586d8ea56 (diff)
Merge branch 'samsung/defconfig' into next/defconfig
From Kukjin Kim <kgene.kim@samsung.com>: It is including new exynos_defconfig for DT configuration of exynos4 and exynos5 together. The old exynos4_defconfig will be used for non-DT for a while and we will try to move on using exynos_defconfig for only DT. * samsung/defconfig: ARM: exynos_defconfig: enable more platforms in defconfig Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod.c')
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c32
1 files changed, 24 insertions, 8 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 773193670ea..2d710f50fca 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -1124,15 +1124,18 @@ static struct omap_hwmod_addr_space * __init _find_mpu_rt_addr_space(struct omap
* _enable_sysc - try to bring a module out of idle via OCP_SYSCONFIG
* @oh: struct omap_hwmod *
*
- * If module is marked as SWSUP_SIDLE, force the module out of slave
- * idle; otherwise, configure it for smart-idle. If module is marked
- * as SWSUP_MSUSPEND, force the module out of master standby;
- * otherwise, configure it for smart-standby. No return value.
+ * Ensure that the OCP_SYSCONFIG register for the IP block represented
+ * by @oh is set to indicate to the PRCM that the IP block is active.
+ * Usually this means placing the module into smart-idle mode and
+ * smart-standby, but if there is a bug in the automatic idle handling
+ * for the IP block, it may need to be placed into the force-idle or
+ * no-idle variants of these modes. No return value.
*/
static void _enable_sysc(struct omap_hwmod *oh)
{
u8 idlemode, sf;
u32 v;
+ bool clkdm_act;
if (!oh->class->sysc)
return;
@@ -1141,8 +1144,16 @@ static void _enable_sysc(struct omap_hwmod *oh)
sf = oh->class->sysc->sysc_flags;
if (sf & SYSC_HAS_SIDLEMODE) {
- idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
- HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
+ clkdm_act = ((oh->clkdm &&
+ oh->clkdm->flags & CLKDM_ACTIVE_WITH_MPU) ||
+ (oh->_clk && oh->_clk->clkdm &&
+ oh->_clk->clkdm->flags & CLKDM_ACTIVE_WITH_MPU));
+ if (clkdm_act && !(oh->class->sysc->idlemodes &
+ (SIDLE_SMART | SIDLE_SMART_WKUP)))
+ idlemode = HWMOD_IDLEMODE_FORCE;
+ else
+ idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
+ HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
_set_slave_idlemode(oh, idlemode, &v);
}
@@ -1208,8 +1219,13 @@ static void _idle_sysc(struct omap_hwmod *oh)
sf = oh->class->sysc->sysc_flags;
if (sf & SYSC_HAS_SIDLEMODE) {
- idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
- HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART;
+ /* XXX What about HWMOD_IDLEMODE_SMART_WKUP? */
+ if (oh->flags & HWMOD_SWSUP_SIDLE ||
+ !(oh->class->sysc->idlemodes &
+ (SIDLE_SMART | SIDLE_SMART_WKUP)))
+ idlemode = HWMOD_IDLEMODE_FORCE;
+ else
+ idlemode = HWMOD_IDLEMODE_SMART;
_set_slave_idlemode(oh, idlemode, &v);
}