This patch adjusts the omap3630 portion of the powervr driver to use the new
clk kernel api.

Signed-off-by: Spenser Gilliland <spenser@gillilanding.com>
[yann.morin.1998@free.fr: rebased ontop of 5.01.00.01]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
diff -durN ti-gfx-5_01_00_01.orig/GFX_Linux_KM/services4/system/omap3630/sysutils_linux.c ti-gfx-5_01_00_01/GFX_Linux_KM/services4/system/omap3630/sysutils_linux.c
--- ti-gfx-5_01_00_01.orig/GFX_Linux_KM/services4/system/omap3630/sysutils_linux.c	2013-12-23 15:44:20.000000000 +0100
+++ ti-gfx-5_01_00_01/GFX_Linux_KM/services4/system/omap3630/sysutils_linux.c	2014-02-26 19:17:39.829571846 +0100
@@ -182,6 +182,49 @@
  @Return   PVRSRV_ERROR
 
 ******************************************************************************/
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0)
+int clk_disable_unprepare(struct clk *clk)
+{
+	return clk_disable(clk);
+}
+#elif LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0)
+int clk_disable_unprepare(struct clk *clk)
+{
+	res = clk_disable(clk);
+	if (res < 0)
+		return res;
+
+	res = clk_unprepare(clk);
+	if (ret < 0)
+		return res;
+
+	return 0;
+}
+#endif
+
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0)
+int clk_prepare_enable(struct clk *clk)
+{
+	return clk_enable(clk);
+}
+#elif LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0)
+int clk_prepare_enable(struct clk *clk)
+{
+	res = clk_prepare(clk);
+	if (ret < 0)
+		return res;
+
+	res = clk_enable(clk);
+	if (res < 0) {
+		clk_unprepare(clk);
+		return res;
+	}
+
+	return 0;
+}
+#endif
+
 PVRSRV_ERROR EnableSGXClocks(SYS_DATA *psSysData)
 {
 #if !defined(NO_HARDWARE)
@@ -198,7 +241,7 @@
 
 #if !defined(PM_RUNTIME_SUPPORT)
         PVR_DPF((PVR_DBG_MESSAGE, "EnableSGXClocks: Enabling SGX Clocks"));
-        res=clk_enable(psSysSpecData->psSGX_FCK);
+        res=clk_prepare_enable(psSysSpecData->psSGX_FCK);
         if (res < 0)
         {
                 PVR_DPF((PVR_DBG_ERROR, "EnableSGXClocks: Couldn't enable SGX functional clock (%d)", res));
@@ -324,7 +367,7 @@
 
 	PVR_DPF((PVR_DBG_MESSAGE, "DisableSGXClocks: Disabling SGX Clocks"));
 #if !defined(PM_RUNTIME_SUPPORT)
-        clk_disable(psSysSpecData->psSGX_FCK);
+        clk_disable_unprepare(psSysSpecData->psSGX_FCK);
 #endif
 	SysDisableSGXInterrupts(psSysData);
 
@@ -540,14 +583,14 @@
 	rate = clk_get_rate(psSysSpecData->psGPT11_FCK);
 	PVR_TRACE(("GPTIMER11 clock is %dMHz", HZ_TO_MHZ(rate)));
 
-	res = clk_enable(psSysSpecData->psGPT11_FCK);
+	res = clk_prepare_enable(psSysSpecData->psGPT11_FCK);
 	if (res < 0)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't enable GPTIMER11 functional clock (%d)", res));
 		goto ExitError;
 	}
 
-	res = clk_enable(psSysSpecData->psGPT11_ICK);
+	res = clk_prepare_enable(psSysSpecData->psGPT11_ICK);
 	if (res < 0)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't enable GPTIMER11 interface clock (%d)", res));
@@ -610,9 +653,9 @@
 
 ExitDisableGPT11ICK:
 #if defined(PVR_OMAP4_TIMING_PRCM)
-	clk_disable(psSysSpecData->psGPT11_ICK);
+	clk_disable_unprepare(psSysSpecData->psGPT11_ICK);
 ExitDisableGPT11FCK:
-	clk_disable(psSysSpecData->psGPT11_FCK);
+	clk_disable_unprepare(psSysSpecData->psGPT11_FCK);
 ExitError:
 #endif	/* defined(PVR_OMAP4_TIMING_PRCM) */
 	eError = PVRSRV_ERROR_CLOCK_REQUEST_FAILED;
@@ -664,9 +707,9 @@
 	psSysSpecData->sTimerRegPhysBase.uiAddr = 0;
 #endif
 #if defined(PVR_OMAP4_TIMING_PRCM)
-	clk_disable(psSysSpecData->psGPT11_ICK);
+	clk_disable_unprepare(psSysSpecData->psGPT11_ICK);
 
-	clk_disable(psSysSpecData->psGPT11_FCK);
+	clk_disable_unprepare(psSysSpecData->psGPT11_FCK);
 #endif	/* defined(PVR_OMAP4_TIMING_PRCM) */
 }
 #endif	/* PVR_OMAP_USE_DM_TIMER_API */