msm: camera: isp: Added PPI driver functionality

PPI is a bridge between CSIPHY and CSID. Responsibilty of this driver is to
enable and configure PPI bridge from CSID as per the configuration.

Change-Id: I3e2a12043088335f62a54670167306d6084c7221
Signed-off-by: Vikram Sharma <[email protected]>

Author: Vikram Sharma

drivers/media/platform/msm/camera/cam_isp/isp_hw_mgr/isp_hw/ife_csid_hw/Makefile

@@ -8,5 +8,6 @@ ccflags-y += -Idrivers/media/platform/msm/camera/cam_isp/isp_hw_mgr/isp_hw/inclu
 ccflags-y += -Idrivers/media/platform/msm/camera/cam_smmu/
 ccflags-y += -Idrivers/media/platform/msm/camera/cam_req_mgr/
 
+obj-$(CONFIG_SPECTRA_CAMERA) += cam_csid_ppi_dev.o cam_csid_ppi_core.o cam_csid_ppi170.o
 obj-$(CONFIG_SPECTRA_CAMERA) += cam_ife_csid_dev.o cam_ife_csid_soc.o cam_ife_csid_core.o
 obj-$(CONFIG_SPECTRA_CAMERA) += cam_ife_csid17x.o cam_ife_csid_lite17x.o

drivers/media/platform/msm/camera/cam_isp/isp_hw_mgr/isp_hw/ife_csid_hw/cam_csid_ppi170.c

@@ -0,0 +1,58 @@
+/* Copyright (c) 2019, 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.
+ */
+
+#include <linux/module.h>
+#include "cam_csid_ppi_core.h"
+#include "cam_csid_ppi170.h"
+#include "cam_csid_ppi_dev.h"
+
+#define CAM_PPI_DRV_NAME                    "ppi_170"
+#define CAM_PPI_VERSION_V170                 0x10070000
+
+static struct cam_csid_ppi_hw_info cam_csid_ppi170_hw_info = {
+	.ppi_reg = &cam_csid_ppi_170_reg_offset,
+};
+
+static const struct of_device_id cam_csid_ppi170_dt_match[] = {
+	{
+		.compatible = "qcom,ppi170",
+		.data = &cam_csid_ppi170_hw_info,
+	},
+	{}
+};
+
+MODULE_DEVICE_TABLE(of, cam_csid_ppi170_dt_match);
+
+static struct platform_driver cam_csid_ppi170_driver = {
+	.probe  = cam_csid_ppi_probe,
+	.remove = cam_csid_ppi_remove,
+	.driver = {
+		.name = CAM_PPI_DRV_NAME,
+		.owner = THIS_MODULE,
+		.of_match_table = cam_csid_ppi170_dt_match,
+		.suppress_bind_attrs = true,
+	},
+};
+
+static int __init cam_csid_ppi170_init_module(void)
+{
+	return platform_driver_register(&cam_csid_ppi170_driver);
+}
+
+static void __exit cam_csid_ppi170_exit_module(void)
+{
+	platform_driver_unregister(&cam_csid_ppi170_driver);
+}
+
+module_init(cam_csid_ppi170_init_module);
+MODULE_DESCRIPTION("CAM CSID_PPI170 driver");
+MODULE_LICENSE("GPL v2");

drivers/media/platform/msm/camera/cam_isp/isp_hw_mgr/isp_hw/ife_csid_hw/cam_csid_ppi170.h

@@ -0,0 +1,32 @@
+/* Copyright (c) 2019, 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 _CAM_CSID_PPI_170_H_
+#define _CAM_CSID_PPI_170_H_
+
+#include "cam_csid_ppi_core.h"
+
+static struct cam_csid_ppi_reg_offset cam_csid_ppi_170_reg_offset = {
+	.ppi_hw_version_addr    = 0,
+	.ppi_module_cfg_addr    = 0x60,
+	.ppi_irq_status_addr    = 0x68,
+	.ppi_irq_mask_addr      = 0x6c,
+	.ppi_irq_set_addr       = 0x70,
+	.ppi_irq_clear_addr     = 0x74,
+	.ppi_irq_cmd_addr       = 0x78,
+	.ppi_rst_cmd_addr       = 0x7c,
+	.ppi_test_bus_ctrl_addr = 0x1f4,
+	.ppi_debug_addr         = 0x1f8,
+	.ppi_spare_addr         = 0x1fc,
+};
+
+#endif /*_CAM_CSID_PPI_170_H_ */