ARM: OMAP: hwmod: Fix up hwmod based clkdm accesses

hwmod uses deferencing the clk pointer to acccess the clkdm.
With COMMON clk hwoever this will need to be deferenced through
the clk_hw_omap pointer, so do the necessary changes.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>

1 files changed, 56 insertions, 14 deletions

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 139adca3bda1..f38e4cefa2a5 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -130,7 +130,11 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/io.h>
+#ifdef CONFIG_COMMON_CLK
+#include <linux/clk-provider.h>
+#else
 #include <linux/clk.h>
+#endif
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/list.h>
@@ -614,6 +618,23 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v)
         return 0;
 }
 
+static struct clockdomain *_get_clkdm(struct omap_hwmod *oh)
+{
+        if (oh->clkdm) {
+                return oh->clkdm;
+        } else if (oh->_clk) {
+#ifdef CONFIG_COMMON_CLK
+                struct clk_hw_omap *clk;
+
+                clk = to_clk_hw_omap(__clk_get_hw(oh->_clk));
+                return  clk->clkdm;
+#else
+                return oh->_clk->clkdm;
+#endif
+        }
+        return NULL;
+}
+
 /**
  * _add_initiator_dep: prevent @oh from smart-idling while @init_oh is active
  * @oh: struct omap_hwmod *
@@ -629,13 +650,18 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v)
  */
 static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
 {
-        if (!oh->_clk)
+        struct clockdomain *clkdm, *init_clkdm;
+
+        clkdm = _get_clkdm(oh);
+        init_clkdm = _get_clkdm(init_oh);
+
+        if (!clkdm || !init_clkdm)
                 return -EINVAL;
 
-        if (oh->_clk->clkdm && oh->_clk->clkdm->flags & CLKDM_NO_AUTODEPS)
+        if (clkdm && clkdm->flags & CLKDM_NO_AUTODEPS)
                 return 0;
 
-        return clkdm_add_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm);
+        return clkdm_add_sleepdep(clkdm, init_clkdm);
 }
 
 /**
@@ -653,13 +679,18 @@ static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
  */
 static int _del_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
 {
-        if (!oh->_clk)
+        struct clockdomain *clkdm, *init_clkdm;
+
+        clkdm = _get_clkdm(oh);
+        init_clkdm = _get_clkdm(init_oh);
+
+        if (!clkdm || !init_clkdm)
                 return -EINVAL;
 
-        if (oh->_clk->clkdm && oh->_clk->clkdm->flags & CLKDM_NO_AUTODEPS)
+        if (clkdm && clkdm->flags & CLKDM_NO_AUTODEPS)
                 return 0;
 
-        return clkdm_del_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm);
+        return clkdm_del_sleepdep(clkdm, init_clkdm);
 }
 
 /**
@@ -693,7 +724,7 @@ static int _init_main_clk(struct omap_hwmod *oh)
          */
         clk_prepare(oh->_clk);
 
-        if (!oh->_clk->clkdm)
+        if (!_get_clkdm(oh))
                 pr_debug("omap_hwmod: %s: missing clockdomain for %s.\n",
                            oh->name, oh->main_clk);
 
@@ -1276,6 +1307,7 @@ static void _enable_sysc(struct omap_hwmod *oh)
         u8 idlemode, sf;
         u32 v;
         bool clkdm_act;
+        struct clockdomain *clkdm;
 
         if (!oh->class->sysc)
                 return;
@@ -1283,11 +1315,9 @@ static void _enable_sysc(struct omap_hwmod *oh)
         v = oh->_sysc_cache;
         sf = oh->class->sysc->sysc_flags;
 
+        clkdm = _get_clkdm(oh);
         if (sf & SYSC_HAS_SIDLEMODE) {
-                clkdm_act = ((oh->clkdm &&
-                              oh->clkdm->flags & CLKDM_ACTIVE_WITH_MPU) ||
-                             (oh->_clk && oh->_clk->clkdm &&
-                              oh->_clk->clkdm->flags & CLKDM_ACTIVE_WITH_MPU));
+                clkdm_act = (clkdm && clkdm->flags & CLKDM_ACTIVE_WITH_MPU);
                 if (clkdm_act && !(oh->class->sysc->idlemodes &
                                    (SIDLE_SMART | SIDLE_SMART_WKUP)))
                         idlemode = HWMOD_IDLEMODE_FORCE;
@@ -3556,10 +3586,17 @@ struct powerdomain *omap_hwmod_get_pwrdm(struct omap_hwmod *oh)
 {
         struct clk *c;
         struct omap_hwmod_ocp_if *oi;
+        struct clockdomain *clkdm;
+#ifdef CONFIG_COMMON_CLK
+        struct clk_hw_omap *clk;
+#endif
 
         if (!oh)
                 return NULL;
 
+        if (oh->clkdm)
+                return oh->clkdm->pwrdm.ptr;
+
         if (oh->_clk) {
                 c = oh->_clk;
         } else {
@@ -3569,11 +3606,16 @@ struct powerdomain *omap_hwmod_get_pwrdm(struct omap_hwmod *oh)
                 c = oi->_clk;
         }
 
-        if (!c->clkdm)
+#ifdef CONFIG_COMMON_CLK
+        clk = to_clk_hw_omap(__clk_get_hw(c));
+        clkdm = clk->clkdm;
+#else
+        clkdm = c->clkdm;
+#endif
+        if (!clkdm)
                 return NULL;
 
-        return c->clkdm->pwrdm.ptr;
-
+        return clkdm->pwrdm.ptr;
 }
 
 /**