ARM: OMAP4: Clock stubs since CLKDEV not in yet.

This patch update the common clock.c file for OMAP4. The clk_get() and
clk_put() functions are moved to  common place in arch/arm/common/clkdev.c
Since on current OMAP4 platform clk management is still not supported, the
platform file is stubbed with those functions.

Once the framework is ready, this WILL be replaced with a full
clkdev implementation.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 29efc279287a..0fcfcd68709c 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -36,10 +36,40 @@ static struct clk_functions *arch_clock;
  * Standard clock functions defined in include/linux/clk.h
  *-------------------------------------------------------------------------*/
 
+/* This functions is moved to arch/arm/common/clkdev.c. For OMAP4 since
+ * clock framework is not up , it is defined here to avoid rework in
+ * every driver. Also dummy prcm reset function is added */
+
+/* Dummy hooks only for OMAP4.For rest OMAPs, common clkdev is used */
+#if defined(CONFIG_ARCH_OMAP4)
+struct clk *clk_get(struct device *dev, const char *id)
+{
+        return NULL;
+}
+EXPORT_SYMBOL(clk_get);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);
+
+void omap2_clk_prepare_for_reboot(void)
+{
+}
+EXPORT_SYMBOL(omap2_clk_prepare_for_reboot);
+
+void omap_prcm_arch_reset(char mode)
+{
+}
+EXPORT_SYMBOL(omap_prcm_arch_reset);
+#endif
 int clk_enable(struct clk *clk)
 {
         unsigned long flags;
         int ret = 0;
+        if (cpu_is_omap44xx())
+                /* OMAP4 clk framework not supported yet */
+                return 0;
 
         if (clk == NULL || IS_ERR(clk))
                 return -EINVAL;
@@ -140,6 +170,9 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
         unsigned long flags;
         int ret = -EINVAL;
 
+        if (cpu_is_omap44xx())
+        /* OMAP4 clk framework not supported yet */
+                return 0;
         if (clk == NULL || IS_ERR(clk) || parent == NULL || IS_ERR(parent))
                 return ret;