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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
*/
#include <linux/slab.h>
#include "cam_cpas_api.h"
#include "cam_vfe_soc.h"
#include "cam_debug_util.h"
static bool cam_vfe_cpas_cb(uint32_t client_handle, void *userdata,
struct cam_cpas_irq_data *irq_data)
{
bool error_handled = false;
if (!irq_data)
return error_handled;
switch (irq_data->irq_type) {
case CAM_CAMNOC_IRQ_IFE02_UBWC_ENCODE_ERROR:
case CAM_CAMNOC_IRQ_IFE13_UBWC_ENCODE_ERROR:
case CAM_CAMNOC_IRQ_IFE0_UBWC_ENCODE_ERROR:
case CAM_CAMNOC_IRQ_IFE1_WRITE_UBWC_ENCODE_ERROR:
CAM_ERR_RATE_LIMIT(CAM_ISP,
"IFE UBWC Encode error type=%d status=%x",
irq_data->irq_type,
irq_data->u.enc_err.encerr_status.value);
error_handled = true;
break;
default:
break;
}
return error_handled;
}
static int cam_vfe_get_dt_properties(struct cam_hw_soc_info *soc_info)
{
int rc = 0, num_ubwc_cfg = 0, i = 0;
struct device_node *of_node = NULL;
struct platform_device *pdev = NULL;
struct cam_vfe_soc_private *vfe_soc_private;
pdev = soc_info->pdev;
of_node = pdev->dev.of_node;
vfe_soc_private = soc_info->soc_private;
rc = cam_soc_util_get_dt_properties(soc_info);
if (rc) {
CAM_ERR(CAM_ISP, "Error! get DT properties failed rc=%d", rc);
return rc;
}
vfe_soc_private->is_ife_lite = false;
if (strnstr(soc_info->compatible, "lite",
strlen(soc_info->compatible)) != NULL) {
vfe_soc_private->is_ife_lite = true;
goto end;
}
switch (soc_info->hw_version) {
case CAM_CPAS_TITAN_480_V100:
num_ubwc_cfg = of_property_count_u32_elems(of_node,
"ubwc-static-cfg");
if (num_ubwc_cfg < 0 || num_ubwc_cfg > UBWC_STATIC_CONFIG_MAX) {
CAM_ERR(CAM_ISP, "wrong num_ubwc_cfg: %d",
num_ubwc_cfg);
rc = num_ubwc_cfg;
goto end;
}
for (i = 0; i < num_ubwc_cfg; i++) {
rc = of_property_read_u32_index(of_node,
"ubwc-static-cfg", i,
&vfe_soc_private->ubwc_static_ctrl[i]);
if (rc < 0) {
CAM_ERR(CAM_ISP,
"unable to read ubwc static config");
break;
}
}
break;
default:
break;
}
vfe_soc_private->dsp_disabled = of_property_read_bool(of_node,
"dsp-disabled");
end:
return rc;
}
static int cam_vfe_request_platform_resource(
struct cam_hw_soc_info *soc_info,
irq_handler_t vfe_irq_handler, void *irq_data)
{
int rc = 0;
rc = cam_soc_util_request_platform_resource(soc_info, vfe_irq_handler,
irq_data);
if (rc)
CAM_ERR(CAM_ISP,
"Error! Request platform resource failed rc=%d", rc);
return rc;
}
static int cam_vfe_release_platform_resource(struct cam_hw_soc_info *soc_info)
{
int rc = 0;
rc = cam_soc_util_release_platform_resource(soc_info);
if (rc)
CAM_ERR(CAM_ISP,
"Error! Release platform resource failed rc=%d", rc);
return rc;
}
int cam_vfe_init_soc_resources(struct cam_hw_soc_info *soc_info,
irq_handler_t vfe_irq_handler, void *irq_data)
{
int rc = 0;
struct cam_vfe_soc_private *soc_private;
struct cam_cpas_register_params cpas_register_param;
soc_private = kzalloc(sizeof(struct cam_vfe_soc_private),
GFP_KERNEL);
if (!soc_private) {
CAM_DBG(CAM_ISP, "Error! soc_private Alloc Failed");
return -ENOMEM;
}
soc_info->soc_private = soc_private;
rc = cam_cpas_get_cpas_hw_version(&soc_private->cpas_version);
if (rc) {
CAM_ERR(CAM_ISP, "Error! Invalid cpas version rc=%d", rc);
goto free_soc_private;
}
soc_info->hw_version = soc_private->cpas_version;
rc = cam_vfe_get_dt_properties(soc_info);
if (rc < 0) {
CAM_ERR(CAM_ISP, "Error! Get DT properties failed rc=%d", rc);
goto free_soc_private;
}
rc = cam_soc_util_get_option_clk_by_name(soc_info,
CAM_VFE_DSP_CLK_NAME, &soc_private->dsp_clk,
&soc_private->dsp_clk_index, &soc_private->dsp_clk_rate);
if (rc)
CAM_WARN(CAM_ISP, "Option clk get failed with rc %d", rc);
rc = cam_vfe_request_platform_resource(soc_info, vfe_irq_handler,
irq_data);
if (rc < 0) {
CAM_ERR(CAM_ISP,
"Error! Request platform resources failed rc=%d", rc);
goto free_soc_private;
}
memset(&cpas_register_param, 0, sizeof(cpas_register_param));
strlcpy(cpas_register_param.identifier, "ife",
CAM_HW_IDENTIFIER_LENGTH);
cpas_register_param.cell_index = soc_info->index;
cpas_register_param.dev = soc_info->dev;
cpas_register_param.cam_cpas_client_cb = cam_vfe_cpas_cb;
cpas_register_param.userdata = soc_info;
rc = cam_cpas_register_client(&cpas_register_param);
if (rc) {
CAM_ERR(CAM_ISP, "CPAS registration failed rc=%d", rc);
goto release_soc;
} else {
soc_private->cpas_handle = cpas_register_param.client_handle;
}
return rc;
release_soc:
cam_soc_util_release_platform_resource(soc_info);
free_soc_private:
kfree(soc_private);
return rc;
}
int cam_vfe_deinit_soc_resources(struct cam_hw_soc_info *soc_info)
{
int rc = 0;
struct cam_vfe_soc_private *soc_private;
if (!soc_info) {
CAM_ERR(CAM_ISP, "Error! soc_info NULL");
return -ENODEV;
}
soc_private = soc_info->soc_private;
if (!soc_private) {
CAM_ERR(CAM_ISP, "Error! soc_private NULL");
return -ENODEV;
}
rc = cam_cpas_unregister_client(soc_private->cpas_handle);
if (rc)
CAM_ERR(CAM_ISP, "CPAS unregistration failed rc=%d", rc);
rc = cam_vfe_release_platform_resource(soc_info);
if (rc < 0)
CAM_ERR(CAM_ISP,
"Error! Release platform resources failed rc=%d", rc);
rc = cam_soc_util_clk_put(&soc_private->dsp_clk);
if (rc < 0)
CAM_ERR(CAM_ISP,
"Error Put dsp clk failed rc=%d", rc);
kfree(soc_private);
return rc;
}
int cam_vfe_enable_soc_resources(struct cam_hw_soc_info *soc_info)
{
int rc = 0;
struct cam_vfe_soc_private *soc_private;
struct cam_ahb_vote ahb_vote;
struct cam_axi_vote axi_vote = {0};
if (!soc_info) {
CAM_ERR(CAM_ISP, "Error! Invalid params");
rc = -EINVAL;
goto end;
}
soc_private = soc_info->soc_private;
ahb_vote.type = CAM_VOTE_ABSOLUTE;
ahb_vote.vote.level = CAM_LOWSVS_VOTE;
axi_vote.num_paths = 1;
if (strnstr(soc_info->compatible, "lite",
strlen(soc_info->compatible))) {
axi_vote.axi_path[0].path_data_type =
CAM_AXI_PATH_DATA_IFE_RDI1;
} else {
axi_vote.axi_path[0].path_data_type =
CAM_AXI_PATH_DATA_IFE_VID;
}
axi_vote.axi_path[0].transac_type = CAM_AXI_TRANSACTION_WRITE;
axi_vote.axi_path[0].camnoc_bw = 10640000000L;
axi_vote.axi_path[0].mnoc_ab_bw = 10640000000L;
axi_vote.axi_path[0].mnoc_ib_bw = 10640000000L;
rc = cam_cpas_start(soc_private->cpas_handle, &ahb_vote, &axi_vote);
if (rc) {
CAM_ERR(CAM_ISP, "Error! CPAS start failed rc=%d", rc);
rc = -EFAULT;
goto end;
}
rc = cam_soc_util_enable_platform_resource(soc_info, true,
CAM_TURBO_VOTE, true);
if (rc) {
CAM_ERR(CAM_ISP, "Error! enable platform failed rc=%d", rc);
goto stop_cpas;
}
return rc;
stop_cpas:
cam_cpas_stop(soc_private->cpas_handle);
end:
return rc;
}
int cam_vfe_soc_enable_clk(struct cam_hw_soc_info *soc_info,
const char *clk_name)
{
int rc = 0;
struct cam_vfe_soc_private *soc_private;
if (!soc_info) {
CAM_ERR(CAM_ISP, "Error Invalid params");
rc = -EINVAL;
return rc;
}
soc_private = soc_info->soc_private;
if (strcmp(clk_name, CAM_VFE_DSP_CLK_NAME) == 0) {
rc = cam_soc_util_clk_enable(soc_private->dsp_clk,
CAM_VFE_DSP_CLK_NAME, soc_private->dsp_clk_rate);
if (rc)
CAM_ERR(CAM_ISP,
"Error enable dsp clk failed rc=%d", rc);
}
return rc;
}
int cam_vfe_soc_disable_clk(struct cam_hw_soc_info *soc_info,
const char *clk_name)
{
int rc = 0;
struct cam_vfe_soc_private *soc_private;
if (!soc_info) {
CAM_ERR(CAM_ISP, "Error Invalid params");
rc = -EINVAL;
return rc;
}
soc_private = soc_info->soc_private;
if (strcmp(clk_name, CAM_VFE_DSP_CLK_NAME) == 0) {
rc = cam_soc_util_clk_disable(soc_private->dsp_clk,
CAM_VFE_DSP_CLK_NAME);
if (rc)
CAM_ERR(CAM_ISP,
"Error enable dsp clk failed rc=%d", rc);
}
return rc;
}
int cam_vfe_disable_soc_resources(struct cam_hw_soc_info *soc_info)
{
int rc = 0;
struct cam_vfe_soc_private *soc_private;
if (!soc_info) {
CAM_ERR(CAM_ISP, "Error! Invalid params");
rc = -EINVAL;
return rc;
}
soc_private = soc_info->soc_private;
rc = cam_soc_util_disable_platform_resource(soc_info, true, true);
if (rc) {
CAM_ERR(CAM_ISP, "Disable platform failed rc=%d", rc);
return rc;
}
rc = cam_cpas_stop(soc_private->cpas_handle);
if (rc) {
CAM_ERR(CAM_ISP, "Error! CPAS stop failed rc=%d", rc);
return rc;
}
return rc;
}
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