clk: qcom: Support CPU clock for OSM for common clock framework

Following list of changes have been made
- Update the clock osm to register to common clock framework
- Update clock ops as per common clock framework
- cleanup unused function (clk_osm_setup_osm_was)
- Fix tabs for macro definitions
- Add clocks ids for power and perf clock for clients

Change-Id: I389cc9e93a26a434be752cf74444d6c0985ff36d
Signed-off-by: Taniya Das <tdas@codeaurora.org>

Documentation/devicetree/bindings/arm/msm/qcom,osm.txt

@@ -9,8 +9,9 @@ Properties:
 - compatible
 	Usage:      required
 	Value type: <string>
-	Definition: must be "qcom,cpu-clock-osm-msm8998-v1" or
-		    "qcom,cpu-clock-osm-msm8998-v2".
+	Definition: must be "qcom,cpu-clock-osm-msm8998-v1",
+		    "qcom,cpu-clock-osm-msm8998-v2" or
+		    "qcom,clk-cpu-osm".
 
 - reg
 	Usage:      required

drivers/clk/qcom/Kconfig

@@ -219,4 +219,16 @@ config QCOM_A53
 	  Say Y if you want to support CPU frequency scaling on devices
 	  such as MSM8916.
 
+config CLOCK_CPU_OSM
+	tristate "OSM CPU Clock Controller"
+	depends on COMMON_CLK_QCOM
+	help
+	 Support for the osm clock controller.
+	 Operating State Manager (OSM) is a hardware engine used by some
+	 Qualcomm Technologies, Inc. (QTI) SoCs to manage frequency and
+	 voltage scaling in hardware. OSM is capable of controlling
+	 frequency and voltage requests for multiple clusters via the
+	 existence of multiple OSM domains.
+	 Say Y if you want to support osm clocks.
+
 source "drivers/clk/qcom/mdss/Kconfig"

drivers/clk/qcom/Makefile

@@ -37,5 +37,6 @@ obj-$(CONFIG_KRAITCC) += krait-cc.o
 obj-$(CONFIG_QCOM_A53) += clk-a53.o
 obj-$(CONFIG_QCOM_CLK_RPM) += clk-rpm.o
 obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o
+obj-$(CONFIG_CLOCK_CPU_OSM) += clk-cpu-osm.o
 
 obj-y += mdss/

drivers/clk/qcom/common.h

@@ -137,6 +137,7 @@ struct clk_debug_mux {
 };
 
 #define BM(msb, lsb) (((((uint32_t)-1) << (31-msb)) >> (31-msb+lsb)) << lsb)
+#define BVAL(msb, lsb, val)     (((val) << lsb) & BM(msb, lsb))
 
 #define to_clk_measure(_hw) container_of((_hw), struct clk_debug_mux, hw)
 

include/dt-bindings/clock/qcom,cpu-osm.h

@@ -0,0 +1,23 @@
+/*
+ *  Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _DT_BINDINGS_CLK_MSM_CPU_OSM_H
+#define _DT_BINDINGS_CLK_MSM_CPU_OSM_H
+
+/* CPU clock IDs */
+#define SYS_APCSAUX_CLK_GCC	0
+#define PWRCL_CLK		1
+#define PERFCL_CLK		2
+#define OSM_CLK_SRC		3
+
+#endif