1102 lines
28 KiB
C
1102 lines
28 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Rockchip MIPI CSI2 DPHY driver
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*
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* Copyright (C) 2021 Rockchip Electronics Co., Ltd.
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*/
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_graph.h>
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#include <linux/of_platform.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/regmap.h>
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#include <linux/mfd/syscon.h>
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#include <media/media-entity.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-fwnode.h>
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#include <media/v4l2-subdev.h>
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#include <media/v4l2-device.h>
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#include <linux/phy/phy.h>
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#include "phy-rockchip-csi2-dphy-common.h"
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#include "phy-rockchip-samsung-dcphy.h"
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static struct rkmodule_csi_dphy_param rk3588_dcphy_param = {
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.vendor = PHY_VENDOR_SAMSUNG,
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.lp_vol_ref = 3,
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.lp_hys_sw = {3, 0, 0, 0},
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.lp_escclk_pol_sel = {1, 0, 0, 0},
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.skew_data_cal_clk = {0, 3, 3, 3},
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.clk_hs_term_sel = 2,
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.data_hs_term_sel = {2, 2, 2, 2},
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.reserved = {0},
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};
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struct sensor_async_subdev {
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struct v4l2_async_subdev asd;
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struct v4l2_mbus_config mbus;
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int lanes;
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};
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static LIST_HEAD(csi2dphy_device_list);
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static inline struct csi2_dphy *to_csi2_dphy(struct v4l2_subdev *subdev)
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{
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return container_of(subdev, struct csi2_dphy, sd);
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}
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static struct v4l2_subdev *get_remote_sensor(struct v4l2_subdev *sd)
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{
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struct media_pad *local, *remote;
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struct media_entity *sensor_me;
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struct csi2_dphy *dphy = to_csi2_dphy(sd);
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if (dphy->num_sensors == 0)
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return NULL;
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local = &sd->entity.pads[CSI2_DPHY_RX_PAD_SINK];
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remote = media_entity_remote_pad(local);
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if (!remote) {
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v4l2_warn(sd, "No link between dphy and sensor\n");
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return NULL;
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}
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sensor_me = media_entity_remote_pad(local)->entity;
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return media_entity_to_v4l2_subdev(sensor_me);
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}
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static struct csi2_sensor *sd_to_sensor(struct csi2_dphy *dphy,
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struct v4l2_subdev *sd)
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{
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int i;
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for (i = 0; i < dphy->num_sensors; ++i)
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if (dphy->sensors[i].sd == sd)
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return &dphy->sensors[i];
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return NULL;
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}
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static int csi2_dphy_get_sensor_data_rate(struct v4l2_subdev *sd)
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{
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struct csi2_dphy *dphy = to_csi2_dphy(sd);
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struct v4l2_subdev *sensor_sd = get_remote_sensor(sd);
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struct v4l2_ctrl *link_freq;
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struct v4l2_querymenu qm = { .id = V4L2_CID_LINK_FREQ, };
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int ret = 0;
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if (!sensor_sd)
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return -ENODEV;
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link_freq = v4l2_ctrl_find(sensor_sd->ctrl_handler, V4L2_CID_LINK_FREQ);
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if (!link_freq) {
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v4l2_warn(sd, "No pixel rate control in subdev\n");
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return -EPIPE;
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}
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qm.index = v4l2_ctrl_g_ctrl(link_freq);
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ret = v4l2_querymenu(sensor_sd->ctrl_handler, &qm);
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if (ret < 0) {
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v4l2_err(sd, "Failed to get menu item\n");
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return ret;
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}
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if (!qm.value) {
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v4l2_err(sd, "Invalid link_freq\n");
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return -EINVAL;
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}
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dphy->data_rate_mbps = qm.value * 2;
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do_div(dphy->data_rate_mbps, 1000 * 1000);
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v4l2_info(sd, "dphy%d, data_rate_mbps %lld\n",
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dphy->phy_index, dphy->data_rate_mbps);
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return 0;
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}
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static int rockchip_csi2_dphy_attach_hw(struct csi2_dphy *dphy, int csi_idx, int index)
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{
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struct csi2_dphy_hw *dphy_hw;
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struct samsung_mipi_dcphy *dcphy_hw;
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struct v4l2_subdev *sensor_sd = get_remote_sensor(&dphy->sd);
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struct csi2_sensor *sensor = NULL;
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int lanes = 2;
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if (sensor_sd) {
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sensor = sd_to_sensor(dphy, sensor_sd);
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lanes = sensor->lanes;
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}
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if (dphy->drv_data->chip_id == CHIP_ID_RK3568 ||
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dphy->drv_data->chip_id == CHIP_ID_RV1106) {
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dphy_hw = dphy->dphy_hw_group[0];
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mutex_lock(&dphy_hw->mutex);
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dphy_hw->dphy_dev[dphy_hw->dphy_dev_num] = dphy;
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dphy_hw->dphy_dev_num++;
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switch (dphy->phy_index) {
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case 0:
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dphy->lane_mode = PHY_FULL_MODE;
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dphy_hw->lane_mode = LANE_MODE_FULL;
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break;
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case 1:
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dphy->lane_mode = PHY_SPLIT_01;
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dphy_hw->lane_mode = LANE_MODE_SPLIT;
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break;
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case 2:
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dphy->lane_mode = PHY_SPLIT_23;
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dphy_hw->lane_mode = LANE_MODE_SPLIT;
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break;
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default:
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dphy->lane_mode = PHY_FULL_MODE;
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dphy_hw->lane_mode = LANE_MODE_FULL;
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break;
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}
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dphy->dphy_hw = dphy_hw;
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dphy->phy_hw[index] = (void *)dphy_hw;
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dphy->csi_info.dphy_vendor[index] = PHY_VENDOR_INNO;
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mutex_unlock(&dphy_hw->mutex);
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} else if (dphy->drv_data->chip_id == CHIP_ID_RK3588) {
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if (csi_idx < 2) {
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dcphy_hw = dphy->samsung_phy_group[csi_idx];
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mutex_lock(&dcphy_hw->mutex);
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dcphy_hw->dphy_dev_num++;
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mutex_unlock(&dcphy_hw->mutex);
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dphy->samsung_phy = dcphy_hw;
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dphy->phy_hw[index] = (void *)dcphy_hw;
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dphy->dphy_param = rk3588_dcphy_param;
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dphy->csi_info.dphy_vendor[index] = PHY_VENDOR_SAMSUNG;
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} else {
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dphy_hw = dphy->dphy_hw_group[(csi_idx - 2) / 2];
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mutex_lock(&dphy_hw->mutex);
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if (csi_idx == 2 || csi_idx == 4) {
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if (lanes == 4) {
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dphy->lane_mode = PHY_FULL_MODE;
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dphy_hw->lane_mode = LANE_MODE_FULL;
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if (csi_idx == 2)
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dphy->phy_index = 0;
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else
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dphy->phy_index = 3;
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} else {
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dphy->lane_mode = PHY_SPLIT_01;
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dphy_hw->lane_mode = LANE_MODE_SPLIT;
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if (csi_idx == 2)
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dphy->phy_index = 1;
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else
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dphy->phy_index = 4;
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}
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} else if (csi_idx == 3 || csi_idx == 5) {
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if (lanes == 4) {
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dev_info(dphy->dev, "%s csi host%d only support PHY_SPLIT_23\n",
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__func__, csi_idx);
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mutex_unlock(&dphy_hw->mutex);
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return -EINVAL;
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}
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dphy->lane_mode = PHY_SPLIT_23;
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dphy_hw->lane_mode = LANE_MODE_SPLIT;
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if (csi_idx == 3)
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dphy->phy_index = 2;
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else
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dphy->phy_index = 5;
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}
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dphy_hw->dphy_dev_num++;
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dphy->dphy_hw = dphy_hw;
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dphy->phy_hw[index] = (void *)dphy_hw;
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dphy->csi_info.dphy_vendor[index] = PHY_VENDOR_INNO;
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mutex_unlock(&dphy_hw->mutex);
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}
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} else {
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dphy_hw = dphy->dphy_hw_group[csi_idx / 2];
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mutex_lock(&dphy_hw->mutex);
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if (csi_idx == 0 || csi_idx == 2) {
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if (lanes == 4) {
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dphy->lane_mode = PHY_FULL_MODE;
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dphy_hw->lane_mode = LANE_MODE_FULL;
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if (csi_idx == 0)
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dphy->phy_index = 0;
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else
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dphy->phy_index = 3;
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} else {
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dphy->lane_mode = PHY_SPLIT_01;
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dphy_hw->lane_mode = LANE_MODE_SPLIT;
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if (csi_idx == 0)
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dphy->phy_index = 1;
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else
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dphy->phy_index = 4;
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}
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} else if (csi_idx == 1 || csi_idx == 3) {
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if (lanes == 4) {
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dev_info(dphy->dev, "%s csi host%d only support PHY_SPLIT_23\n",
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__func__, csi_idx);
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mutex_unlock(&dphy_hw->mutex);
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return -EINVAL;
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}
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dphy->lane_mode = PHY_SPLIT_23;
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dphy_hw->lane_mode = LANE_MODE_SPLIT;
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if (csi_idx == 1)
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dphy->phy_index = 2;
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else
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dphy->phy_index = 5;
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} else {
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dev_info(dphy->dev, "%s error csi host%d\n",
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__func__, csi_idx);
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mutex_unlock(&dphy_hw->mutex);
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return -EINVAL;
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}
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dphy_hw->dphy_dev[dphy_hw->dphy_dev_num] = dphy;
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dphy_hw->dphy_dev_num++;
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dphy->phy_hw[index] = (void *)dphy_hw;
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dphy->csi_info.dphy_vendor[index] = PHY_VENDOR_INNO;
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mutex_unlock(&dphy_hw->mutex);
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}
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return 0;
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}
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static int rockchip_csi2_dphy_detach_hw(struct csi2_dphy *dphy, int csi_idx, int index)
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{
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struct csi2_dphy_hw *dphy_hw = NULL;
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struct samsung_mipi_dcphy *dcphy_hw = NULL;
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struct csi2_dphy *csi2_dphy = NULL;
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int i = 0;
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if (dphy->drv_data->chip_id == CHIP_ID_RK3568 ||
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dphy->drv_data->chip_id == CHIP_ID_RV1106) {
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dphy_hw = (struct csi2_dphy_hw *)dphy->phy_hw[index];
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if (!dphy_hw) {
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dev_err(dphy->dev, "%s csi_idx %d detach hw failed\n",
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__func__, csi_idx);
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return -EINVAL;
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}
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mutex_lock(&dphy_hw->mutex);
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for (i = 0; i < dphy_hw->dphy_dev_num; i++) {
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csi2_dphy = dphy_hw->dphy_dev[i];
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if (csi2_dphy &&
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csi2_dphy->phy_index == dphy->phy_index) {
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dphy_hw->dphy_dev[i] = NULL;
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dphy_hw->dphy_dev_num--;
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break;
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}
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}
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mutex_unlock(&dphy_hw->mutex);
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} else if (dphy->drv_data->chip_id == CHIP_ID_RK3588) {
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if (csi_idx < 2) {
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dcphy_hw = (struct samsung_mipi_dcphy *)dphy->phy_hw[index];
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if (!dcphy_hw) {
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dev_err(dphy->dev, "%s csi_idx %d detach hw failed\n",
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__func__, csi_idx);
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return -EINVAL;
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}
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mutex_lock(&dcphy_hw->mutex);
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dcphy_hw->dphy_dev_num--;
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mutex_unlock(&dcphy_hw->mutex);
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} else {
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dphy_hw = (struct csi2_dphy_hw *)dphy->phy_hw[index];
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if (!dphy_hw) {
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dev_err(dphy->dev, "%s csi_idx %d detach hw failed\n",
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__func__, csi_idx);
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return -EINVAL;
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}
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mutex_lock(&dphy_hw->mutex);
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dphy_hw->dphy_dev_num--;
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mutex_unlock(&dphy_hw->mutex);
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}
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} else {
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dphy_hw = (struct csi2_dphy_hw *)dphy->phy_hw[index];
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if (!dphy_hw) {
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dev_err(dphy->dev, "%s csi_idx %d detach hw failed\n",
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__func__, csi_idx);
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return -EINVAL;
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}
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mutex_lock(&dphy_hw->mutex);
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dphy_hw->dphy_dev_num--;
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mutex_unlock(&dphy_hw->mutex);
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}
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return 0;
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}
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static int csi2_dphy_update_sensor_mbus(struct v4l2_subdev *sd)
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{
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struct csi2_dphy *dphy = to_csi2_dphy(sd);
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struct v4l2_subdev *sensor_sd = get_remote_sensor(sd);
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struct csi2_sensor *sensor;
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struct v4l2_mbus_config mbus;
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int ret = 0;
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if (!sensor_sd)
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return -ENODEV;
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sensor = sd_to_sensor(dphy, sensor_sd);
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if (!sensor)
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return -ENODEV;
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ret = v4l2_subdev_call(sensor_sd, pad, get_mbus_config, 0, &mbus);
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if (ret)
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return ret;
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sensor->mbus = mbus;
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switch (mbus.flags & V4L2_MBUS_CSI2_LANES) {
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case V4L2_MBUS_CSI2_1_LANE:
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sensor->lanes = 1;
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break;
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case V4L2_MBUS_CSI2_2_LANE:
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sensor->lanes = 2;
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break;
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case V4L2_MBUS_CSI2_3_LANE:
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sensor->lanes = 3;
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break;
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case V4L2_MBUS_CSI2_4_LANE:
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sensor->lanes = 4;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int csi2_dphy_update_config(struct v4l2_subdev *sd)
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{
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struct csi2_dphy *dphy = to_csi2_dphy(sd);
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struct v4l2_subdev *sensor_sd = get_remote_sensor(sd);
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struct rkmodule_csi_dphy_param dphy_param;
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struct rkmodule_bus_config bus_config;
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int csi_idx = 0;
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int ret = 0;
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int i = 0;
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for (i = 0; i < dphy->csi_info.csi_num; i++) {
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if (dphy->drv_data->chip_id != CHIP_ID_RK3568 &&
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dphy->drv_data->chip_id != CHIP_ID_RV1106) {
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csi_idx = dphy->csi_info.csi_idx[i];
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rockchip_csi2_dphy_attach_hw(dphy, csi_idx, i);
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}
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if (dphy->csi_info.dphy_vendor[i] == PHY_VENDOR_INNO) {
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ret = v4l2_subdev_call(sensor_sd, core, ioctl,
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RKMODULE_GET_BUS_CONFIG, &bus_config);
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if (!ret) {
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dev_info(dphy->dev, "phy_mode %d,lane %d\n",
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bus_config.bus.phy_mode, bus_config.bus.lanes);
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if (bus_config.bus.phy_mode == PHY_FULL_MODE) {
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if (dphy->phy_index % 3 == 2) {
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dev_err(dphy->dev, "%s dphy%d only use for PHY_SPLIT_23\n",
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__func__, dphy->phy_index);
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return -EINVAL;
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}
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dphy->lane_mode = PHY_FULL_MODE;
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dphy->dphy_hw->lane_mode = LANE_MODE_FULL;
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} else if (bus_config.bus.phy_mode == PHY_SPLIT_01) {
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if (dphy->phy_index % 3 == 2) {
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dev_err(dphy->dev, "%s dphy%d only use for PHY_SPLIT_23\n",
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__func__, dphy->phy_index);
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return -EINVAL;
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}
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dphy->lane_mode = PHY_SPLIT_01;
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dphy->dphy_hw->lane_mode = LANE_MODE_SPLIT;
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} else if (bus_config.bus.phy_mode == PHY_SPLIT_23) {
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if (dphy->phy_index % 3 != 2) {
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dev_err(dphy->dev, "%s dphy%d not support PHY_SPLIT_23\n",
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__func__, dphy->phy_index);
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return -EINVAL;
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}
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dphy->lane_mode = PHY_SPLIT_23;
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dphy->dphy_hw->lane_mode = LANE_MODE_SPLIT;
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}
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}
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}
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}
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ret = v4l2_subdev_call(sensor_sd, core, ioctl,
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RKMODULE_GET_CSI_DPHY_PARAM,
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&dphy_param);
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if (!ret)
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dphy->dphy_param = dphy_param;
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return 0;
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}
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static int csi2_dphy_s_stream_start(struct v4l2_subdev *sd)
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{
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struct csi2_dphy *dphy = to_csi2_dphy(sd);
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int i = 0;
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for (i = 0; i < dphy->csi_info.csi_num; i++) {
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if (dphy->csi_info.dphy_vendor[i] == PHY_VENDOR_SAMSUNG) {
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dphy->samsung_phy = (struct samsung_mipi_dcphy *)dphy->phy_hw[i];
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if (dphy->samsung_phy && dphy->samsung_phy->stream_on)
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dphy->samsung_phy->stream_on(dphy, sd);
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} else {
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dphy->dphy_hw = (struct csi2_dphy_hw *)dphy->phy_hw[i];
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if (dphy->dphy_hw && dphy->dphy_hw->stream_on)
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dphy->dphy_hw->stream_on(dphy, sd);
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}
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}
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dphy->is_streaming = true;
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return 0;
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}
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|
|
static int csi2_dphy_s_stream_stop(struct v4l2_subdev *sd)
|
|
{
|
|
struct csi2_dphy *dphy = to_csi2_dphy(sd);
|
|
int i = 0;
|
|
|
|
for (i = 0; i < dphy->csi_info.csi_num; i++) {
|
|
if (dphy->csi_info.dphy_vendor[i] == PHY_VENDOR_SAMSUNG) {
|
|
dphy->samsung_phy = (struct samsung_mipi_dcphy *)dphy->phy_hw[i];
|
|
if (dphy->samsung_phy && dphy->samsung_phy->stream_off)
|
|
dphy->samsung_phy->stream_off(dphy, sd);
|
|
} else {
|
|
dphy->dphy_hw = (struct csi2_dphy_hw *)dphy->phy_hw[i];
|
|
if (dphy->dphy_hw && dphy->dphy_hw->stream_off)
|
|
dphy->dphy_hw->stream_off(dphy, sd);
|
|
}
|
|
if (dphy->drv_data->chip_id != CHIP_ID_RK3568 &&
|
|
dphy->drv_data->chip_id != CHIP_ID_RV1106)
|
|
rockchip_csi2_dphy_detach_hw(dphy, dphy->csi_info.csi_idx[i], i);
|
|
}
|
|
|
|
dphy->is_streaming = false;
|
|
|
|
dev_info(dphy->dev, "%s stream stop, dphy%d\n",
|
|
__func__, dphy->phy_index);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int csi2_dphy_enable_clk(struct csi2_dphy *dphy)
|
|
{
|
|
struct csi2_dphy_hw *hw = NULL;
|
|
struct samsung_mipi_dcphy *samsung_phy = NULL;
|
|
int ret;
|
|
int i = 0;
|
|
|
|
for (i = 0; i < dphy->csi_info.csi_num; i++) {
|
|
if (dphy->csi_info.dphy_vendor[i] == PHY_VENDOR_SAMSUNG) {
|
|
samsung_phy = (struct samsung_mipi_dcphy *)dphy->phy_hw[i];
|
|
if (samsung_phy)
|
|
clk_prepare_enable(samsung_phy->pclk);
|
|
} else {
|
|
hw = (struct csi2_dphy_hw *)dphy->phy_hw[i];
|
|
if (hw) {
|
|
ret = clk_bulk_prepare_enable(hw->num_clks, hw->clks_bulk);
|
|
if (ret) {
|
|
dev_err(hw->dev, "failed to enable clks\n");
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void csi2_dphy_disable_clk(struct csi2_dphy *dphy)
|
|
{
|
|
struct csi2_dphy_hw *hw = NULL;
|
|
struct samsung_mipi_dcphy *samsung_phy = NULL;
|
|
int i = 0;
|
|
|
|
for (i = 0; i < dphy->csi_info.csi_num; i++) {
|
|
if (dphy->csi_info.dphy_vendor[i] == PHY_VENDOR_SAMSUNG) {
|
|
samsung_phy = (struct samsung_mipi_dcphy *)dphy->phy_hw[i];
|
|
if (samsung_phy)
|
|
clk_disable_unprepare(samsung_phy->pclk);
|
|
} else {
|
|
hw = (struct csi2_dphy_hw *)dphy->phy_hw[i];
|
|
if (hw)
|
|
clk_bulk_disable_unprepare(hw->num_clks, hw->clks_bulk);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int csi2_dphy_s_stream(struct v4l2_subdev *sd, int on)
|
|
{
|
|
struct csi2_dphy *dphy = to_csi2_dphy(sd);
|
|
int ret = 0;
|
|
|
|
mutex_lock(&dphy->mutex);
|
|
if (on) {
|
|
if (dphy->is_streaming) {
|
|
mutex_unlock(&dphy->mutex);
|
|
return 0;
|
|
}
|
|
|
|
ret = csi2_dphy_get_sensor_data_rate(sd);
|
|
if (ret < 0) {
|
|
mutex_unlock(&dphy->mutex);
|
|
return ret;
|
|
}
|
|
|
|
csi2_dphy_update_sensor_mbus(sd);
|
|
ret = csi2_dphy_update_config(sd);
|
|
if (ret < 0) {
|
|
mutex_unlock(&dphy->mutex);
|
|
return ret;
|
|
}
|
|
|
|
ret = csi2_dphy_enable_clk(dphy);
|
|
if (ret) {
|
|
mutex_unlock(&dphy->mutex);
|
|
return ret;
|
|
}
|
|
ret = csi2_dphy_s_stream_start(sd);
|
|
} else {
|
|
if (!dphy->is_streaming) {
|
|
mutex_unlock(&dphy->mutex);
|
|
return 0;
|
|
}
|
|
ret = csi2_dphy_s_stream_stop(sd);
|
|
csi2_dphy_disable_clk(dphy);
|
|
}
|
|
mutex_unlock(&dphy->mutex);
|
|
|
|
dev_info(dphy->dev, "%s stream on:%d, dphy%d, ret %d\n",
|
|
__func__, on, dphy->phy_index, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int csi2_dphy_g_frame_interval(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_frame_interval *fi)
|
|
{
|
|
struct v4l2_subdev *sensor = get_remote_sensor(sd);
|
|
|
|
if (sensor)
|
|
return v4l2_subdev_call(sensor, video, g_frame_interval, fi);
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int csi2_dphy_g_mbus_config(struct v4l2_subdev *sd,
|
|
unsigned int pad_id,
|
|
struct v4l2_mbus_config *config)
|
|
{
|
|
struct csi2_dphy *dphy = to_csi2_dphy(sd);
|
|
struct v4l2_subdev *sensor_sd = get_remote_sensor(sd);
|
|
struct csi2_sensor *sensor;
|
|
|
|
if (!sensor_sd)
|
|
return -ENODEV;
|
|
sensor = sd_to_sensor(dphy, sensor_sd);
|
|
if (!sensor)
|
|
return -ENODEV;
|
|
csi2_dphy_update_sensor_mbus(sd);
|
|
*config = sensor->mbus;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int csi2_dphy_s_power(struct v4l2_subdev *sd, int on)
|
|
{
|
|
struct csi2_dphy *dphy = to_csi2_dphy(sd);
|
|
|
|
if (on)
|
|
return pm_runtime_get_sync(dphy->dev);
|
|
else
|
|
return pm_runtime_put(dphy->dev);
|
|
}
|
|
|
|
static __maybe_unused int csi2_dphy_runtime_suspend(struct device *dev)
|
|
{
|
|
struct media_entity *me = dev_get_drvdata(dev);
|
|
struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(me);
|
|
struct csi2_dphy *dphy = to_csi2_dphy(sd);
|
|
|
|
if (dphy->is_streaming) {
|
|
csi2_dphy_s_stream(sd, 0);
|
|
dphy->is_streaming = false;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static __maybe_unused int csi2_dphy_runtime_resume(struct device *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* dphy accepts all fmt/size from sensor */
|
|
static int csi2_dphy_get_set_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_pad_config *cfg,
|
|
struct v4l2_subdev_format *fmt)
|
|
{
|
|
struct csi2_dphy *dphy = to_csi2_dphy(sd);
|
|
struct v4l2_subdev *sensor_sd = get_remote_sensor(sd);
|
|
struct csi2_sensor *sensor;
|
|
int ret;
|
|
/*
|
|
* Do not allow format changes and just relay whatever
|
|
* set currently in the sensor.
|
|
*/
|
|
if (!sensor_sd)
|
|
return -ENODEV;
|
|
sensor = sd_to_sensor(dphy, sensor_sd);
|
|
if (!sensor)
|
|
return -ENODEV;
|
|
ret = v4l2_subdev_call(sensor_sd, pad, get_fmt, NULL, fmt);
|
|
if (!ret && fmt->pad == 0 && fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE)
|
|
sensor->format = fmt->format;
|
|
return ret;
|
|
}
|
|
|
|
static int csi2_dphy_get_selection(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_pad_config *cfg,
|
|
struct v4l2_subdev_selection *sel)
|
|
{
|
|
struct v4l2_subdev *sensor = get_remote_sensor(sd);
|
|
|
|
return v4l2_subdev_call(sensor, pad, get_selection, NULL, sel);
|
|
}
|
|
|
|
static long rkcif_csi2_dphy_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
|
|
{
|
|
struct csi2_dphy *dphy = to_csi2_dphy(sd);
|
|
long ret = 0;
|
|
|
|
switch (cmd) {
|
|
case RKCIF_CMD_SET_CSI_IDX:
|
|
if (dphy->drv_data->chip_id != CHIP_ID_RK3568 &&
|
|
dphy->drv_data->chip_id != CHIP_ID_RV1106)
|
|
dphy->csi_info = *((struct rkcif_csi_info *)arg);
|
|
break;
|
|
default:
|
|
ret = -ENOIOCTLCMD;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifdef CONFIG_COMPAT
|
|
static long rkcif_csi2_dphy_compat_ioctl32(struct v4l2_subdev *sd,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
void __user *up = compat_ptr(arg);
|
|
struct rkcif_csi_info csi_info = {0};
|
|
long ret;
|
|
|
|
switch (cmd) {
|
|
case RKCIF_CMD_SET_CSI_IDX:
|
|
if (copy_from_user(&csi_info, up, sizeof(struct rkcif_csi_info)))
|
|
return -EFAULT;
|
|
|
|
ret = rkcif_csi2_dphy_ioctl(sd, cmd, &csi_info);
|
|
break;
|
|
default:
|
|
ret = -ENOIOCTLCMD;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static const struct v4l2_subdev_core_ops csi2_dphy_core_ops = {
|
|
.s_power = csi2_dphy_s_power,
|
|
.ioctl = rkcif_csi2_dphy_ioctl,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl32 = rkcif_csi2_dphy_compat_ioctl32,
|
|
#endif
|
|
};
|
|
|
|
static const struct v4l2_subdev_video_ops csi2_dphy_video_ops = {
|
|
.g_frame_interval = csi2_dphy_g_frame_interval,
|
|
.s_stream = csi2_dphy_s_stream,
|
|
};
|
|
|
|
static const struct v4l2_subdev_pad_ops csi2_dphy_subdev_pad_ops = {
|
|
.set_fmt = csi2_dphy_get_set_fmt,
|
|
.get_fmt = csi2_dphy_get_set_fmt,
|
|
.get_selection = csi2_dphy_get_selection,
|
|
.get_mbus_config = csi2_dphy_g_mbus_config,
|
|
};
|
|
|
|
static const struct v4l2_subdev_ops csi2_dphy_subdev_ops = {
|
|
.core = &csi2_dphy_core_ops,
|
|
.video = &csi2_dphy_video_ops,
|
|
.pad = &csi2_dphy_subdev_pad_ops,
|
|
};
|
|
|
|
/* The .bound() notifier callback when a match is found */
|
|
static int
|
|
rockchip_csi2_dphy_notifier_bound(struct v4l2_async_notifier *notifier,
|
|
struct v4l2_subdev *sd,
|
|
struct v4l2_async_subdev *asd)
|
|
{
|
|
struct csi2_dphy *dphy = container_of(notifier,
|
|
struct csi2_dphy,
|
|
notifier);
|
|
struct sensor_async_subdev *s_asd = container_of(asd,
|
|
struct sensor_async_subdev, asd);
|
|
struct csi2_sensor *sensor;
|
|
unsigned int pad, ret;
|
|
|
|
if (dphy->num_sensors == ARRAY_SIZE(dphy->sensors))
|
|
return -EBUSY;
|
|
|
|
sensor = &dphy->sensors[dphy->num_sensors++];
|
|
sensor->lanes = s_asd->lanes;
|
|
sensor->mbus = s_asd->mbus;
|
|
sensor->sd = sd;
|
|
|
|
dev_info(dphy->dev, "dphy%d matches %s:bus type %d\n",
|
|
dphy->phy_index, sd->name, s_asd->mbus.type);
|
|
|
|
for (pad = 0; pad < sensor->sd->entity.num_pads; pad++)
|
|
if (sensor->sd->entity.pads[pad].flags & MEDIA_PAD_FL_SOURCE)
|
|
break;
|
|
|
|
if (pad == sensor->sd->entity.num_pads) {
|
|
dev_err(dphy->dev,
|
|
"failed to find src pad for %s\n",
|
|
sensor->sd->name);
|
|
|
|
return -ENXIO;
|
|
}
|
|
|
|
ret = media_create_pad_link(
|
|
&sensor->sd->entity, pad,
|
|
&dphy->sd.entity, CSI2_DPHY_RX_PAD_SINK,
|
|
dphy->num_sensors != 1 ? 0 : MEDIA_LNK_FL_ENABLED);
|
|
if (ret) {
|
|
dev_err(dphy->dev,
|
|
"failed to create link for %s\n",
|
|
sensor->sd->name);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* The .unbind callback */
|
|
static void
|
|
rockchip_csi2_dphy_notifier_unbind(struct v4l2_async_notifier *notifier,
|
|
struct v4l2_subdev *sd,
|
|
struct v4l2_async_subdev *asd)
|
|
{
|
|
struct csi2_dphy *dphy = container_of(notifier,
|
|
struct csi2_dphy,
|
|
notifier);
|
|
struct csi2_sensor *sensor = sd_to_sensor(dphy, sd);
|
|
|
|
if (sensor)
|
|
sensor->sd = NULL;
|
|
}
|
|
|
|
static const struct
|
|
v4l2_async_notifier_operations rockchip_csi2_dphy_async_ops = {
|
|
.bound = rockchip_csi2_dphy_notifier_bound,
|
|
.unbind = rockchip_csi2_dphy_notifier_unbind,
|
|
};
|
|
|
|
static int rockchip_csi2_dphy_fwnode_parse(struct device *dev,
|
|
struct v4l2_fwnode_endpoint *vep,
|
|
struct v4l2_async_subdev *asd)
|
|
{
|
|
struct sensor_async_subdev *s_asd =
|
|
container_of(asd, struct sensor_async_subdev, asd);
|
|
struct v4l2_mbus_config *config = &s_asd->mbus;
|
|
|
|
if (vep->base.port != 0) {
|
|
dev_err(dev, "The PHY has only port 0\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (vep->bus_type == V4L2_MBUS_CSI2_DPHY ||
|
|
vep->bus_type == V4L2_MBUS_CSI2_CPHY) {
|
|
config->type = vep->bus_type;
|
|
config->flags = vep->bus.mipi_csi2.flags;
|
|
s_asd->lanes = vep->bus.mipi_csi2.num_data_lanes;
|
|
} else if (vep->bus_type == V4L2_MBUS_CCP2) {
|
|
config->type = V4L2_MBUS_CCP2;
|
|
s_asd->lanes = vep->bus.mipi_csi1.data_lane;
|
|
} else {
|
|
dev_err(dev, "Only CSI2 type is currently supported\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (s_asd->lanes) {
|
|
case 1:
|
|
config->flags |= V4L2_MBUS_CSI2_1_LANE;
|
|
break;
|
|
case 2:
|
|
config->flags |= V4L2_MBUS_CSI2_2_LANE;
|
|
break;
|
|
case 3:
|
|
config->flags |= V4L2_MBUS_CSI2_3_LANE;
|
|
break;
|
|
case 4:
|
|
config->flags |= V4L2_MBUS_CSI2_4_LANE;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rockchip_csi2dphy_media_init(struct csi2_dphy *dphy)
|
|
{
|
|
int ret;
|
|
|
|
dphy->pads[CSI2_DPHY_RX_PAD_SOURCE].flags =
|
|
MEDIA_PAD_FL_SOURCE | MEDIA_PAD_FL_MUST_CONNECT;
|
|
dphy->pads[CSI2_DPHY_RX_PAD_SINK].flags =
|
|
MEDIA_PAD_FL_SINK | MEDIA_PAD_FL_MUST_CONNECT;
|
|
dphy->sd.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE;
|
|
ret = media_entity_pads_init(&dphy->sd.entity,
|
|
CSI2_DPHY_RX_PADS_NUM, dphy->pads);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
v4l2_async_notifier_init(&dphy->notifier);
|
|
|
|
ret = v4l2_async_notifier_parse_fwnode_endpoints_by_port(
|
|
dphy->dev, &dphy->notifier,
|
|
sizeof(struct sensor_async_subdev), 0,
|
|
rockchip_csi2_dphy_fwnode_parse);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
dphy->sd.subdev_notifier = &dphy->notifier;
|
|
dphy->notifier.ops = &rockchip_csi2_dphy_async_ops;
|
|
ret = v4l2_async_subdev_notifier_register(&dphy->sd, &dphy->notifier);
|
|
if (ret) {
|
|
dev_err(dphy->dev,
|
|
"failed to register async notifier : %d\n", ret);
|
|
v4l2_async_notifier_cleanup(&dphy->notifier);
|
|
return ret;
|
|
}
|
|
|
|
return v4l2_async_register_subdev(&dphy->sd);
|
|
}
|
|
|
|
static struct dphy_drv_data rk3568_dphy_drv_data = {
|
|
.dev_name = "csi2dphy",
|
|
.chip_id = CHIP_ID_RK3568,
|
|
.num_inno_phy = 1,
|
|
.num_samsung_phy = 0,
|
|
};
|
|
|
|
static struct dphy_drv_data rk3588_dphy_drv_data = {
|
|
.dev_name = "csi2dphy",
|
|
.chip_id = CHIP_ID_RK3588,
|
|
.num_inno_phy = 2,
|
|
.num_samsung_phy = 2,
|
|
};
|
|
|
|
static struct dphy_drv_data rv1106_dphy_drv_data = {
|
|
.dev_name = "csi2dphy",
|
|
.chip_id = CHIP_ID_RV1106,
|
|
.num_inno_phy = 1,
|
|
.num_samsung_phy = 0,
|
|
};
|
|
|
|
static struct dphy_drv_data rk3562_dphy_drv_data = {
|
|
.dev_name = "csi2dphy",
|
|
.chip_id = CHIP_ID_RK3562,
|
|
.num_inno_phy = 2,
|
|
.num_samsung_phy = 0,
|
|
};
|
|
|
|
static const struct of_device_id rockchip_csi2_dphy_match_id[] = {
|
|
{
|
|
.compatible = "rockchip,rk3568-csi2-dphy",
|
|
.data = &rk3568_dphy_drv_data,
|
|
},
|
|
{
|
|
.compatible = "rockchip,rk3588-csi2-dphy",
|
|
.data = &rk3588_dphy_drv_data,
|
|
},
|
|
{
|
|
.compatible = "rockchip,rv1106-csi2-dphy",
|
|
.data = &rv1106_dphy_drv_data,
|
|
},
|
|
{
|
|
.compatible = "rockchip,rk3562-csi2-dphy",
|
|
.data = &rk3562_dphy_drv_data,
|
|
},
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(of, rockchip_csi2_dphy_match_id);
|
|
|
|
static int rockchip_csi2_dphy_get_samsung_phy_hw(struct csi2_dphy *dphy)
|
|
{
|
|
struct phy *dcphy;
|
|
struct device *dev = dphy->dev;
|
|
struct samsung_mipi_dcphy *dcphy_hw;
|
|
char phy_name[32];
|
|
int i = 0;
|
|
int ret = 0;
|
|
|
|
for (i = 0; i < dphy->drv_data->num_samsung_phy; i++) {
|
|
sprintf(phy_name, "dcphy%d", i);
|
|
dcphy = devm_phy_optional_get(dev, phy_name);
|
|
if (IS_ERR(dcphy)) {
|
|
ret = PTR_ERR(dcphy);
|
|
dev_err(dphy->dev, "failed to get mipi dcphy: %d\n", ret);
|
|
return ret;
|
|
}
|
|
dcphy_hw = phy_get_drvdata(dcphy);
|
|
dphy->samsung_phy_group[i] = dcphy_hw;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int rockchip_csi2_dphy_get_inno_phy_hw(struct csi2_dphy *dphy)
|
|
{
|
|
struct platform_device *plat_dev;
|
|
struct device *dev = dphy->dev;
|
|
struct csi2_dphy_hw *dphy_hw;
|
|
struct device_node *np;
|
|
int i = 0;
|
|
|
|
for (i = 0; i < dphy->drv_data->num_inno_phy; i++) {
|
|
np = of_parse_phandle(dev->of_node, "rockchip,hw", i);
|
|
if (!np || !of_device_is_available(np)) {
|
|
dev_err(dphy->dev,
|
|
"failed to get dphy%d hw node\n", dphy->phy_index);
|
|
return -ENODEV;
|
|
}
|
|
plat_dev = of_find_device_by_node(np);
|
|
of_node_put(np);
|
|
if (!plat_dev) {
|
|
dev_err(dphy->dev,
|
|
"failed to get dphy%d hw from node\n",
|
|
dphy->phy_index);
|
|
return -ENODEV;
|
|
}
|
|
dphy_hw = platform_get_drvdata(plat_dev);
|
|
if (!dphy_hw) {
|
|
dev_err(dphy->dev,
|
|
"failed attach dphy%d hw\n",
|
|
dphy->phy_index);
|
|
return -EINVAL;
|
|
}
|
|
dphy->dphy_hw_group[i] = dphy_hw;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int rockchip_csi2_dphy_get_hw(struct csi2_dphy *dphy)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (dphy->drv_data->chip_id == CHIP_ID_RK3588) {
|
|
ret = rockchip_csi2_dphy_get_samsung_phy_hw(dphy);
|
|
if (ret)
|
|
return ret;
|
|
ret = rockchip_csi2_dphy_get_inno_phy_hw(dphy);
|
|
} else {
|
|
ret = rockchip_csi2_dphy_get_inno_phy_hw(dphy);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int rockchip_csi2_dphy_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
const struct of_device_id *of_id;
|
|
struct csi2_dphy *csi2dphy;
|
|
struct v4l2_subdev *sd;
|
|
const struct dphy_drv_data *drv_data;
|
|
int ret;
|
|
|
|
csi2dphy = devm_kzalloc(dev, sizeof(*csi2dphy), GFP_KERNEL);
|
|
if (!csi2dphy)
|
|
return -ENOMEM;
|
|
csi2dphy->dev = dev;
|
|
|
|
of_id = of_match_device(rockchip_csi2_dphy_match_id, dev);
|
|
if (!of_id)
|
|
return -EINVAL;
|
|
drv_data = of_id->data;
|
|
csi2dphy->drv_data = drv_data;
|
|
|
|
csi2dphy->phy_index = of_alias_get_id(dev->of_node, drv_data->dev_name);
|
|
if (csi2dphy->phy_index < 0 || csi2dphy->phy_index >= PHY_MAX)
|
|
csi2dphy->phy_index = 0;
|
|
|
|
ret = rockchip_csi2_dphy_get_hw(csi2dphy);
|
|
if (ret)
|
|
return -EINVAL;
|
|
if (csi2dphy->drv_data->chip_id == CHIP_ID_RK3568 ||
|
|
csi2dphy->drv_data->chip_id == CHIP_ID_RV1106) {
|
|
csi2dphy->csi_info.csi_num = 1;
|
|
csi2dphy->csi_info.dphy_vendor[0] = PHY_VENDOR_INNO;
|
|
rockchip_csi2_dphy_attach_hw(csi2dphy, 0, 0);
|
|
} else {
|
|
csi2dphy->csi_info.csi_num = 0;
|
|
}
|
|
sd = &csi2dphy->sd;
|
|
mutex_init(&csi2dphy->mutex);
|
|
v4l2_subdev_init(sd, &csi2_dphy_subdev_ops);
|
|
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
|
|
snprintf(sd->name, sizeof(sd->name),
|
|
"rockchip-csi2-dphy%d", csi2dphy->phy_index);
|
|
sd->dev = dev;
|
|
|
|
platform_set_drvdata(pdev, &sd->entity);
|
|
|
|
ret = rockchip_csi2dphy_media_init(csi2dphy);
|
|
if (ret < 0)
|
|
goto detach_hw;
|
|
|
|
pm_runtime_enable(&pdev->dev);
|
|
|
|
dev_info(dev, "csi2 dphy%d probe successfully!\n", csi2dphy->phy_index);
|
|
|
|
return 0;
|
|
|
|
detach_hw:
|
|
mutex_destroy(&csi2dphy->mutex);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int rockchip_csi2_dphy_remove(struct platform_device *pdev)
|
|
{
|
|
struct media_entity *me = platform_get_drvdata(pdev);
|
|
struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(me);
|
|
struct csi2_dphy *dphy = to_csi2_dphy(sd);
|
|
int i = 0;
|
|
|
|
for (i = 0; i < dphy->csi_info.csi_num; i++)
|
|
rockchip_csi2_dphy_detach_hw(dphy, dphy->csi_info.csi_idx[i], i);
|
|
media_entity_cleanup(&sd->entity);
|
|
|
|
pm_runtime_disable(&pdev->dev);
|
|
mutex_destroy(&dphy->mutex);
|
|
return 0;
|
|
}
|
|
|
|
static const struct dev_pm_ops rockchip_csi2_dphy_pm_ops = {
|
|
SET_RUNTIME_PM_OPS(csi2_dphy_runtime_suspend,
|
|
csi2_dphy_runtime_resume, NULL)
|
|
};
|
|
|
|
struct platform_driver rockchip_csi2_dphy_driver = {
|
|
.probe = rockchip_csi2_dphy_probe,
|
|
.remove = rockchip_csi2_dphy_remove,
|
|
.driver = {
|
|
.name = "rockchip-csi2-dphy",
|
|
.pm = &rockchip_csi2_dphy_pm_ops,
|
|
.of_match_table = rockchip_csi2_dphy_match_id,
|
|
},
|
|
};
|
|
|
|
int rockchip_csi2_dphy_init(void)
|
|
{
|
|
return platform_driver_register(&rockchip_csi2_dphy_driver);
|
|
}
|
|
|
|
#if defined(CONFIG_VIDEO_ROCKCHIP_THUNDER_BOOT_ISP) && !defined(CONFIG_INITCALL_ASYNC)
|
|
subsys_initcall(rockchip_csi2_dphy_init);
|
|
#else
|
|
#if !defined(CONFIG_VIDEO_REVERSE_IMAGE)
|
|
module_platform_driver(rockchip_csi2_dphy_driver);
|
|
#endif
|
|
#endif
|
|
|
|
MODULE_AUTHOR("Rockchip Camera/ISP team");
|
|
MODULE_DESCRIPTION("Rockchip MIPI CSI2 DPHY driver");
|
|
MODULE_LICENSE("GPL v2");
|