Merge tag 'qcom-soc-for-4.3' of git://codeaurora.org/quic/kernel/agross-msm into next/drivers

Qualcomm ARM Based SoC Updates for 4.3

* Add SMEM driver
* Add SMD driver
* Add RPM over SMD driver
* Select QCOM_SCM by default

* tag 'qcom-soc-for-4.3' of git://codeaurora.org/quic/kernel/agross-msm:
  devicetree: soc: Add Qualcomm SMD based RPM DT binding
  soc: qcom: Driver for the Qualcomm RPM over SMD
  soc: qcom: Add Shared Memory Driver
  soc: qcom: Add device tree binding for Shared Memory Device
  drivers: qcom: Select QCOM_SCM unconditionally for QCOM_PM
  soc: qcom: Add Shared Memory Manager driver

Signed-off-by: Olof Johansson <olof@lixom.net>

3 files changed, 92 insertions, 0 deletions

diff --git a/include/linux/soc/qcom/smd-rpm.h b/include/linux/soc/qcom/smd-rpm.h
new file mode 100644
index 000000000000..2a53dcaeeeed
--- /dev/null
+++ b/include/linux/soc/qcom/smd-rpm.h
@@ -0,0 +1,35 @@
+#ifndef __QCOM_SMD_RPM_H__
+#define __QCOM_SMD_RPM_H__
+
+struct qcom_smd_rpm;
+
+#define QCOM_SMD_RPM_ACTIVE_STATE        0
+#define QCOM_SMD_RPM_SLEEP_STATE         1
+
+/*
+ * Constants used for addressing resources in the RPM.
+ */
+#define QCOM_SMD_RPM_BOOST      0x61747362
+#define QCOM_SMD_RPM_BUS_CLK    0x316b6c63
+#define QCOM_SMD_RPM_BUS_MASTER 0x73616d62
+#define QCOM_SMD_RPM_BUS_SLAVE  0x766c7362
+#define QCOM_SMD_RPM_CLK_BUF_A  0x616B6C63
+#define QCOM_SMD_RPM_LDOA       0x616f646c
+#define QCOM_SMD_RPM_LDOB       0x626F646C
+#define QCOM_SMD_RPM_MEM_CLK    0x326b6c63
+#define QCOM_SMD_RPM_MISC_CLK   0x306b6c63
+#define QCOM_SMD_RPM_NCPA       0x6170636E
+#define QCOM_SMD_RPM_NCPB       0x6270636E
+#define QCOM_SMD_RPM_OCMEM_PWR  0x706d636f
+#define QCOM_SMD_RPM_QPIC_CLK   0x63697071
+#define QCOM_SMD_RPM_SMPA       0x61706d73
+#define QCOM_SMD_RPM_SMPB       0x62706d73
+#define QCOM_SMD_RPM_SPDM       0x63707362
+#define QCOM_SMD_RPM_VSA        0x00617376
+
+int qcom_rpm_smd_write(struct qcom_smd_rpm *rpm,
+                       int state,
+                       u32 resource_type, u32 resource_id,
+                       void *buf, size_t count);
+
+#endif
diff --git a/include/linux/soc/qcom/smd.h b/include/linux/soc/qcom/smd.h
new file mode 100644
index 000000000000..d7e50aa6a4ac
--- /dev/null
+++ b/include/linux/soc/qcom/smd.h
@@ -0,0 +1,46 @@
+#ifndef __QCOM_SMD_H__
+#define __QCOM_SMD_H__
+
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+
+struct qcom_smd;
+struct qcom_smd_channel;
+struct qcom_smd_lookup;
+
+/**
+ * struct qcom_smd_device - smd device struct
+ * @dev:        the device struct
+ * @channel:    handle to the smd channel for this device
+ */
+struct qcom_smd_device {
+        struct device dev;
+        struct qcom_smd_channel *channel;
+};
+
+/**
+ * struct qcom_smd_driver - smd driver struct
+ * @driver:     underlying device driver
+ * @probe:      invoked when the smd channel is found
+ * @remove:     invoked when the smd channel is closed
+ * @callback:   invoked when an inbound message is received on the channel,
+ *              should return 0 on success or -EBUSY if the data cannot be
+ *              consumed at this time
+ */
+struct qcom_smd_driver {
+        struct device_driver driver;
+        int (*probe)(struct qcom_smd_device *dev);
+        void (*remove)(struct qcom_smd_device *dev);
+        int (*callback)(struct qcom_smd_device *, const void *, size_t);
+};
+
+int qcom_smd_driver_register(struct qcom_smd_driver *drv);
+void qcom_smd_driver_unregister(struct qcom_smd_driver *drv);
+
+#define module_qcom_smd_driver(__smd_driver) \
+        module_driver(__smd_driver, qcom_smd_driver_register, \
+                      qcom_smd_driver_unregister)
+
+int qcom_smd_send(struct qcom_smd_channel *channel, const void *data, int len);
+
+#endif
diff --git a/include/linux/soc/qcom/smem.h b/include/linux/soc/qcom/smem.h
new file mode 100644
index 000000000000..bc9630d3aced
--- /dev/null
+++ b/include/linux/soc/qcom/smem.h
@@ -0,0 +1,11 @@
+#ifndef __QCOM_SMEM_H__
+#define __QCOM_SMEM_H__
+
+#define QCOM_SMEM_HOST_ANY -1
+
+int qcom_smem_alloc(unsigned host, unsigned item, size_t size);
+int qcom_smem_get(unsigned host, unsigned item, void **ptr, size_t *size);
+
+int qcom_smem_get_free_space(unsigned host);
+
+#endif