zynqmp: pm: Add wrappers for Pin control APIs

Add wrappers for pin control APIs. Actual implementation of
these APIs would be done in subsequent changes.
Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>

plat/xilinx/zynqmp/pm_service/pm_api_sys.c

 /*
- * Copyright (c) 2013-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -545,3 +545,93 @@ void pm_get_callbackdata(uint32_t *data, size_t count)
 	pm_ipi_buff_read_callb(data, count);
 	pm_ipi_irq_clear(primary_proc);
 }
+
+/**
+ * pm_pinctrl_request() - Request Pin from firmware
+ * @pin		Pin number to request
+ *
+ * This function requests pin from firmware.
+ *
+ * @return	Returns status, either success or error+reason.
+ */
+enum pm_ret_status pm_pinctrl_request(unsigned int pin)
+{
+	return PM_RET_SUCCESS;
+}
+
+/**
+ * pm_pinctrl_release() - Release Pin from firmware
+ * @pin		Pin number to release
+ *
+ * This function releases pin from firmware.
+ *
+ * @return	Returns status, either success or error+reason.
+ */
+enum pm_ret_status pm_pinctrl_release(unsigned int pin)
+{
+	return PM_RET_SUCCESS;
+}
+
+/**
+ * pm_pinctrl_get_function() - Read function id set for the given pin
+ * @pin		Pin number
+ * @nid		Node ID of function currently set for given pin
+ *
+ * This function provides the function currently set for the given pin.
+ *
+ * @return	Returns status, either success or error+reason
+ */
+enum pm_ret_status pm_pinctrl_get_function(unsigned int pin,
+					   enum pm_node_id *nid)
+{
+	return PM_RET_SUCCESS;
+}
+
+/**
+ * pm_pinctrl_set_function() - Set function id set for the given pin
+ * @pin		Pin number
+ * @nid		Node ID of function to set for given pin
+ *
+ * This function provides the function currently set for the given pin.
+ *
+ * @return	Returns status, either success or error+reason
+ */
+enum pm_ret_status pm_pinctrl_set_function(unsigned int pin,
+					   enum pm_node_id nid)
+{
+	return PM_RET_SUCCESS;
+}
+
+/**
+ * pm_pinctrl_get_config() - Read value of requested config param for given pin
+ * @pin		Pin number
+ * @param	Parameter values to be read
+ * @value	Buffer for configuration Parameter value
+ *
+ * This function provides the configuration parameter value for the given pin.
+ *
+ * @return	Returns status, either success or error+reason
+ */
+enum pm_ret_status pm_pinctrl_get_config(unsigned int pin,
+					 unsigned int param,
+					 unsigned int *value)
+{
+	return PM_RET_SUCCESS;
+}
+
+/**
+ * pm_pinctrl_set_config() - Read value of requested config param for given pin
+ * @pin		Pin number
+ * @param	Parameter to set
+ * @value	Parameter value to set
+ *
+ * This function provides the configuration parameter value for the given pin.
+ *
+ * @return	Returns status, either success or error+reason
+ */
+enum pm_ret_status pm_pinctrl_set_config(unsigned int pin,
+					 unsigned int param,
+					 unsigned int value)
+{
+	return PM_RET_SUCCESS;
+}

plat/xilinx/zynqmp/pm_service/pm_api_sys.h

 /*
- * Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -93,5 +93,17 @@ enum pm_ret_status pm_fpga_get_status(unsigned int *value);
 
 enum pm_ret_status pm_get_chipid(uint32_t *value);
 void pm_get_callbackdata(uint32_t *data, size_t count);
+enum pm_ret_status pm_pinctrl_request(unsigned int pin);
+enum pm_ret_status pm_pinctrl_release(unsigned int pin);
+enum pm_ret_status pm_pinctrl_get_function(unsigned int pin,
+					   unsigned int *value);
+enum pm_ret_status pm_pinctrl_set_function(unsigned int pin,
+					   unsigned int value);
+enum pm_ret_status pm_pinctrl_get_config(unsigned int pin,
+					 unsigned int param,
+					 unsigned int *value);
+enum pm_ret_status pm_pinctrl_set_config(unsigned int pin,
+					 unsigned int param,
+					 unsigned int value);
 
 #endif /* _PM_API_SYS_H_ */

plat/xilinx/zynqmp/pm_service/pm_defs.h

 /*
- * Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -69,6 +69,12 @@ enum pm_api_id {
 	PM_SECURE_RSA_AES,
 	PM_SECURE_SHA,
 	PM_SECURE_RSA,
+	PM_PINCTRL_REQUEST,
+	PM_PINCTRL_RELEASE,
+	PM_PINCTRL_GET_FUNCTION,
+	PM_PINCTRL_SET_FUNCTION,
+	PM_PINCTRL_CONFIG_PARAM_GET,
+	PM_PINCTRL_CONFIG_PARAM_SET,
 	PM_API_MAX
 };
 

plat/xilinx/zynqmp/pm_service/pm_svc_main.c

 /*
- * Copyright (c) 2013-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -248,6 +248,38 @@ uint64_t pm_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
 			 (uint64_t)result[2] | ((uint64_t)result[3] << 32));
 	}
 
+	case PM_PINCTRL_REQUEST:
+		ret = pm_pinctrl_request(pm_arg[0]);
+		SMC_RET1(handle, (uint64_t)ret);
+
+	case PM_PINCTRL_RELEASE:
+		ret = pm_pinctrl_release(pm_arg[0]);
+		SMC_RET1(handle, (uint64_t)ret);
+
+	case PM_PINCTRL_GET_FUNCTION:
+	{
+		uint32_t value;
+
+		ret = pm_pinctrl_get_function(pm_arg[0], &value);
+		SMC_RET1(handle, (uint64_t)ret | ((uint64_t)value) << 32);
+	}
+
+	case PM_PINCTRL_SET_FUNCTION:
+		ret = pm_pinctrl_set_function(pm_arg[0], pm_arg[1]);
+		SMC_RET1(handle, (uint64_t)ret);
+
+	case PM_PINCTRL_CONFIG_PARAM_GET:
+	{
+		uint32_t value;
+
+		ret = pm_pinctrl_get_config(pm_arg[0], pm_arg[1], &value);
+		SMC_RET1(handle, (uint64_t)ret | ((uint64_t)value) << 32);
+	}
+
+	case PM_PINCTRL_CONFIG_PARAM_SET:
+		ret = pm_pinctrl_set_config(pm_arg[0], pm_arg[1], pm_arg[2]);
+		SMC_RET1(handle, (uint64_t)ret);
+
 	default:
 		WARN("Unimplemented PM Service Call: 0x%x\n", smc_fid);
 		SMC_RET1(handle, SMC_UNK);