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-rw-r--r--arch/arm/mach-omap2/omap-hotplug.c2
-rw-r--r--arch/arm/mach-omap2/omap-wakeupgen.c2
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c75
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.h6
4 files changed, 52 insertions, 33 deletions
diff --git a/arch/arm/mach-omap2/omap-hotplug.c b/arch/arm/mach-omap2/omap-hotplug.c
index 971791fe9a3f..593fec753b28 100644
--- a/arch/arm/mach-omap2/omap-hotplug.c
+++ b/arch/arm/mach-omap2/omap-hotplug.c
@@ -27,7 +27,7 @@
* platform-specific code to shutdown a CPU
* Called with IRQs disabled
*/
-void __ref omap4_cpu_die(unsigned int cpu)
+void omap4_cpu_die(unsigned int cpu)
{
unsigned int boot_cpu = 0;
void __iomem *base = omap_get_wakeupgen_base();
diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c
index 6833df45d7b1..3e059b215a1d 100644
--- a/arch/arm/mach-omap2/omap-wakeupgen.c
+++ b/arch/arm/mach-omap2/omap-wakeupgen.c
@@ -330,7 +330,7 @@ static int irq_cpu_hotplug_notify(struct notifier_block *self,
return NOTIFY_OK;
}
-static struct notifier_block __refdata irq_hotplug_notifier = {
+static struct notifier_block irq_hotplug_notifier = {
.notifier_call = irq_cpu_hotplug_notify,
};
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 5286e7773ed4..9185bb958503 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -876,6 +876,36 @@ static int _init_opt_clks(struct omap_hwmod *oh)
return ret;
}
+static void _enable_optional_clocks(struct omap_hwmod *oh)
+{
+ struct omap_hwmod_opt_clk *oc;
+ int i;
+
+ pr_debug("omap_hwmod: %s: enabling optional clocks\n", oh->name);
+
+ for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
+ if (oc->_clk) {
+ pr_debug("omap_hwmod: enable %s:%s\n", oc->role,
+ __clk_get_name(oc->_clk));
+ clk_enable(oc->_clk);
+ }
+}
+
+static void _disable_optional_clocks(struct omap_hwmod *oh)
+{
+ struct omap_hwmod_opt_clk *oc;
+ int i;
+
+ pr_debug("omap_hwmod: %s: disabling optional clocks\n", oh->name);
+
+ for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
+ if (oc->_clk) {
+ pr_debug("omap_hwmod: disable %s:%s\n", oc->role,
+ __clk_get_name(oc->_clk));
+ clk_disable(oc->_clk);
+ }
+}
+
/**
* _enable_clocks - enable hwmod main clock and interface clocks
* @oh: struct omap_hwmod *
@@ -903,6 +933,9 @@ static int _enable_clocks(struct omap_hwmod *oh)
clk_enable(os->_clk);
}
+ if (oh->flags & HWMOD_OPT_CLKS_NEEDED)
+ _enable_optional_clocks(oh);
+
/* The opt clocks are controlled by the device driver. */
return 0;
@@ -934,41 +967,14 @@ static int _disable_clocks(struct omap_hwmod *oh)
clk_disable(os->_clk);
}
+ if (oh->flags & HWMOD_OPT_CLKS_NEEDED)
+ _disable_optional_clocks(oh);
+
/* The opt clocks are controlled by the device driver. */
return 0;
}
-static void _enable_optional_clocks(struct omap_hwmod *oh)
-{
- struct omap_hwmod_opt_clk *oc;
- int i;
-
- pr_debug("omap_hwmod: %s: enabling optional clocks\n", oh->name);
-
- for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
- if (oc->_clk) {
- pr_debug("omap_hwmod: enable %s:%s\n", oc->role,
- __clk_get_name(oc->_clk));
- clk_enable(oc->_clk);
- }
-}
-
-static void _disable_optional_clocks(struct omap_hwmod *oh)
-{
- struct omap_hwmod_opt_clk *oc;
- int i;
-
- pr_debug("omap_hwmod: %s: disabling optional clocks\n", oh->name);
-
- for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
- if (oc->_clk) {
- pr_debug("omap_hwmod: disable %s:%s\n", oc->role,
- __clk_get_name(oc->_clk));
- clk_disable(oc->_clk);
- }
-}
-
/**
* _omap4_enable_module - enable CLKCTRL modulemode on OMAP4
* @oh: struct omap_hwmod *
@@ -2180,6 +2186,11 @@ static int _enable(struct omap_hwmod *oh)
*/
static int _idle(struct omap_hwmod *oh)
{
+ if (oh->flags & HWMOD_NO_IDLE) {
+ oh->_int_flags |= _HWMOD_SKIP_ENABLE;
+ return 0;
+ }
+
pr_debug("omap_hwmod: %s: idling\n", oh->name);
if (oh->_state != _HWMOD_STATE_ENABLED) {
@@ -2484,6 +2495,8 @@ static int __init _init(struct omap_hwmod *oh, void *data)
oh->flags |= HWMOD_INIT_NO_RESET;
if (of_find_property(np, "ti,no-idle-on-init", NULL))
oh->flags |= HWMOD_INIT_NO_IDLE;
+ if (of_find_property(np, "ti,no-idle", NULL))
+ oh->flags |= HWMOD_NO_IDLE;
}
oh->_state = _HWMOD_STATE_INITIALIZED;
@@ -2610,7 +2623,7 @@ static void __init _setup_postsetup(struct omap_hwmod *oh)
* XXX HWMOD_INIT_NO_IDLE does not belong in hwmod data -
* it should be set by the core code as a runtime flag during startup
*/
- if ((oh->flags & HWMOD_INIT_NO_IDLE) &&
+ if ((oh->flags & (HWMOD_INIT_NO_IDLE | HWMOD_NO_IDLE)) &&
(postsetup_state == _HWMOD_STATE_IDLE)) {
oh->_int_flags |= _HWMOD_SKIP_ENABLE;
postsetup_state = _HWMOD_STATE_ENABLED;
diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h
index 9611c91d9b82..ec289c5f099a 100644
--- a/arch/arm/mach-omap2/omap_hwmod.h
+++ b/arch/arm/mach-omap2/omap_hwmod.h
@@ -517,6 +517,10 @@ struct omap_hwmod_omap4_prcm {
* HWMOD_RECONFIG_IO_CHAIN: omap_hwmod code needs to reconfigure wake-up
* events by calling _reconfigure_io_chain() when a device is enabled
* or idled.
+ * HWMOD_OPT_CLKS_NEEDED: The optional clocks are needed for the module to
+ * operate and they need to be handled at the same time as the main_clk.
+ * HWMOD_NO_IDLE: Do not idle the hwmod at all. Useful to handle certain
+ * IPs like CPSW on DRA7, where clocks to this module cannot be disabled.
*/
#define HWMOD_SWSUP_SIDLE (1 << 0)
#define HWMOD_SWSUP_MSTANDBY (1 << 1)
@@ -532,6 +536,8 @@ struct omap_hwmod_omap4_prcm {
#define HWMOD_FORCE_MSTANDBY (1 << 11)
#define HWMOD_SWSUP_SIDLE_ACT (1 << 12)
#define HWMOD_RECONFIG_IO_CHAIN (1 << 13)
+#define HWMOD_OPT_CLKS_NEEDED (1 << 14)
+#define HWMOD_NO_IDLE (1 << 15)
/*
* omap_hwmod._int_flags definitions
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-27 20:24:17 +0000