soc: qcom: dcc: DCC driver for SDM660

This is a snapshot of dcc driver file 'dcc.c' from msm-4.4
at 'commit 3906d34c64e54e06'("soc: qcom: Add Minidump support").

DCC (Data Capture and Compare) is a DMA engine which is used to save
configuration data or system memory contents during catastrophic failure
or SW trigger.

It can also perform CRC over the same configuration or memory space.

Change-Id: I12db0e4cff145657bc81100115e8a7a641f60210
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>

drivers/soc/qcom/Kconfig

@@ -484,6 +484,13 @@ config MSM_CORE_HANG_DETECT
          for hang. By using sysfs entries core hang detection can be
 	 enabled or disabled dynamically.
 
+config QCOM_DCC
+        bool "QCOM Data Capture and Compare enigne support"
+        help
+          This option enables driver for Data Capture and Compare engine. DCC
+          driver provides interface to configure DCC block and read back
+          captured data from DCC's internal SRAM.
+
 config QCOM_DCC_V2
        bool "Qualcomm Technologies Data Capture and Compare enigne support for V2"
        help

drivers/soc/qcom/Makefile

@@ -37,6 +37,7 @@ obj-$(CONFIG_QCOM_SOC_INFO) += socinfo.o
 obj-$(CONFIG_MSM_BOOT_STATS) += boot_stats.o
 obj-$(CONFIG_MSM_BOOT_TIME_MARKER) += boot_marker.o
 obj-$(CONFIG_MSM_CORE_HANG_DETECT) += core_hang_detect.o
+obj-$(CONFIG_QCOM_DCC) += dcc.o
 obj-$(CONFIG_QCOM_DCC_V2) += dcc_v2.o
 obj-$(CONFIG_MSM_GLADIATOR_HANG_DETECT) += gladiator_hang_detect.o
 obj-$(CONFIG_MSM_GLADIATOR_ERP) += gladiator_erp.o