ARM: OMAP2/3: clockdomain/PRM/CM: move the low-level clockdomain functions into PRM/CM

Move the low-level SoC-specific clockdomain control functions into
cm*.c and prm*.c.  For example, OMAP2xxx low-level clockdomain
functions go into cm2xxx.c.  Then remove the unnecessary
clockdomain*xxx*.c files.

The objective is to centralize low-level CM and PRM register accesses
into the cm*.[ch] and prm*.[ch] files, and then to export an OMAP
SoC-independent API to higher-level OMAP power management code.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Reviewed-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c
index 13f56eafef03..9b3bcff127ff 100644
--- a/arch/arm/mach-omap2/cm33xx.c
+++ b/arch/arm/mach-omap2/cm33xx.c
@@ -24,6 +24,7 @@
 
 #include <plat/common.h>
 
+#include "clockdomain.h"
 #include "cm.h"
 #include "cm33xx.h"
 #include "cm-regbits-34xx.h"
@@ -311,3 +312,58 @@ void am33xx_cm_module_disable(u16 inst, s16 cdoffs, u16 clkctrl_offs)
         v &= ~AM33XX_MODULEMODE_MASK;
         am33xx_cm_write_reg(v, inst, clkctrl_offs);
 }
+
+/*
+ * Clockdomain low-level functions
+ */
+
+static int am33xx_clkdm_sleep(struct clockdomain *clkdm)
+{
+        am33xx_cm_clkdm_force_sleep(clkdm->cm_inst, clkdm->clkdm_offs);
+        return 0;
+}
+
+static int am33xx_clkdm_wakeup(struct clockdomain *clkdm)
+{
+        am33xx_cm_clkdm_force_wakeup(clkdm->cm_inst, clkdm->clkdm_offs);
+        return 0;
+}
+
+static void am33xx_clkdm_allow_idle(struct clockdomain *clkdm)
+{
+        am33xx_cm_clkdm_enable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs);
+}
+
+static void am33xx_clkdm_deny_idle(struct clockdomain *clkdm)
+{
+        am33xx_cm_clkdm_disable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs);
+}
+
+static int am33xx_clkdm_clk_enable(struct clockdomain *clkdm)
+{
+        if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)
+                return am33xx_clkdm_wakeup(clkdm);
+
+        return 0;
+}
+
+static int am33xx_clkdm_clk_disable(struct clockdomain *clkdm)
+{
+        bool hwsup = false;
+
+        hwsup = am33xx_cm_is_clkdm_in_hwsup(clkdm->cm_inst, clkdm->clkdm_offs);
+
+        if (!hwsup && (clkdm->flags & CLKDM_CAN_FORCE_SLEEP))
+                am33xx_clkdm_sleep(clkdm);
+
+        return 0;
+}
+
+struct clkdm_ops am33xx_clkdm_operations = {
+        .clkdm_sleep            = am33xx_clkdm_sleep,
+        .clkdm_wakeup           = am33xx_clkdm_wakeup,
+        .clkdm_allow_idle       = am33xx_clkdm_allow_idle,
+        .clkdm_deny_idle        = am33xx_clkdm_deny_idle,
+        .clkdm_clk_enable       = am33xx_clkdm_clk_enable,
+        .clkdm_clk_disable      = am33xx_clkdm_clk_disable,
+};