--- /dev/null
+/*
+ * csid.c
+ *
+ * Qualcomm MSM Camera Subsystem - CSID Module
+ *
+ * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2015-2016 Linaro Ltd.
+ *
+ * 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/clk.h>
+#include <linux/completion.h>
+#include <linux/interrupt.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <media/media-entity.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-subdev.h>
+
+#include "csid.h"
+#include "camss.h"
+
+#define MSM_CSID_NAME "msm_csid"
+
+#define CAMSS_CSID_HW_VERSION 0x0
+#define CAMSS_CSID_CORE_CTRL_0 0x004
+#define CAMSS_CSID_CORE_CTRL_1 0x008
+#define CAMSS_CSID_RST_CMD 0x00c
+#define CAMSS_CSID_CID_LUT_VC_n(n) (0x010 + 0x4 * (n))
+#define CAMSS_CSID_CID_n_CFG(n) (0x020 + 0x4 * (n))
+#define CAMSS_CSID_IRQ_CLEAR_CMD 0x060
+#define CAMSS_CSID_IRQ_MASK 0x064
+#define CAMSS_CSID_IRQ_STATUS 0x068
+#define CAMSS_CSID_TG_CTRL 0x0a0
+#define CAMSS_CSID_TG_VC_CFG 0x0a4
+#define CAMSS_CSID_TG_VC_CFG_H_BLANKING 0x3ff
+#define CAMSS_CSID_TG_VC_CFG_V_BLANKING 0x7f
+#define CAMSS_CSID_TG_DT_n_CGG_0(n) (0x0ac + 0xc * (n))
+#define CAMSS_CSID_TG_DT_n_CGG_1(n) (0x0b0 + 0xc * (n))
+#define CAMSS_CSID_TG_DT_n_CGG_2(n) (0x0b4 + 0xc * (n))
+
+/*
+ * csid_isr - CSID module interrupt handler
+ * @irq: Interrupt line
+ * @dev: CSID device
+ *
+ * Return IRQ_HANDLED on success
+ */
+static irqreturn_t csid_isr(int irq, void *dev)
+{
+ struct csid_device *csid = dev;
+ u32 value;
+
+ value = readl(csid->base + CAMSS_CSID_IRQ_STATUS);
+ writel(value, csid->base + CAMSS_CSID_IRQ_CLEAR_CMD);
+
+ if ((value >> 11) & 0x1)
+ complete(&csid->reset_complete);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * csid_enable_clocks - Enable clocks for CSID module and
+ * set clock rates where needed
+ * @csid: CSID device
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+static int csid_enable_clocks(int nclocks, struct clk **clock, s32 *clock_rate)
+{
+ long clk_rate;
+ int ret;
+ int i;
+
+ for (i = 0; i < nclocks; i++) {
+ if (clock_rate[i]) {
+ clk_rate = clk_round_rate(clock[i], clock_rate[i]);
+ if (clk_rate < 0) {
+ pr_err("clock round rate failed\n");
+ ret = clk_rate;
+ goto error;
+ }
+ ret = clk_set_rate(clock[i], clk_rate);
+ if (ret < 0) {
+ pr_err("clock set rate failed\n");
+ goto error;
+ }
+ }
+ ret = clk_prepare_enable(clock[i]);
+ if (ret) {
+ pr_err("clock enable failed\n");
+ goto error;
+ }
+ }
+
+ return 0;
+
+error:
+ for (i--; i >= 0; i--)
+ clk_disable_unprepare(clock[i]);
+
+ return ret;
+}
+
+/*
+ * csid_disable_clocks - Disable clocks for CSID module
+ * @csid: CSID device
+ */
+static void csid_disable_clocks(int nclocks, struct clk **clock)
+{
+ int i;
+
+ for (i = nclocks - 1; i >= 0; i--)
+ clk_disable_unprepare(clock[i]);
+}
+
+/*
+ * csid_set_power - Power on/off CSID module
+ * @sd: CSID V4L2 subdevice
+ * @on: Requested power state
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+static int csid_set_power(struct v4l2_subdev *sd, int on)
+{
+ struct csid_device *csid = v4l2_get_subdevdata(sd);
+ int ret;
+
+ dev_err(csid->camss->dev, "%s: Enter, csid%d on = %d\n",
+ __func__, csid->id, on);
+
+ if (on) {
+ u32 hw_version;
+
+ ret = regulator_enable(csid->vdda);
+ if (ret < 0)
+ return ret;
+
+ ret = csid_enable_clocks(csid->nclocks, csid->clock,
+ csid->clock_rate);
+ if (ret < 0)
+ return ret;
+
+ enable_irq(csid->irq);
+
+ hw_version = readl(csid->base + CAMSS_CSID_HW_VERSION);
+ dev_err(csid->camss->dev, "CSID HW Version = 0x%08x\n", hw_version);
+ } else {
+ disable_irq(csid->irq);
+
+ csid_disable_clocks(csid->nclocks, csid->clock);
+
+ ret = regulator_disable(csid->vdda);
+ if (ret < 0)
+ return ret;
+ }
+
+ dev_err(csid->camss->dev, "%s: Exit, csid%d on = %d\n",
+ __func__, csid->id, on);
+
+ return 0;
+}
+
+#define DATA_TYPE_YUV422_8BIT 0x1e
+
+/*
+ * csid_get_data_type - map media but format to data type
+ * @fmt media bus format code
+ *
+ * Return data type code
+ */
+static u8 csid_get_data_type(u32 fmt)
+{
+ switch (fmt) {
+ case MEDIA_BUS_FMT_UYVY8_2X8:
+ return DATA_TYPE_YUV422_8BIT;
+ }
+
+ return 0;
+}
+
+#define DECODE_FORMAT_UNCOMPRESSED_8_BIT 0x1
+
+/*
+ * csid_get_decode_format - map media but format to decode format
+ * @fmt media bus format code
+ *
+ * Return decode format code
+ */
+static u8 csid_get_decode_format(u32 fmt)
+{
+ switch (fmt) {
+ case MEDIA_BUS_FMT_UYVY8_2X8:
+ return DECODE_FORMAT_UNCOMPRESSED_8_BIT;
+ }
+
+ return 0;
+}
+
+/*
+ * csid_set_stream - Enable/disable streaming on CSID module
+ * @sd: CSID V4L2 subdevice
+ * @enable: Requested streaming state
+ *
+ * Main configuration of CSID module is also done here.
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+static int csid_set_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct csid_device *csid = v4l2_get_subdevdata(sd);
+ struct csid_testgen_config *tg = &csid->testgen;
+
+ dev_err(csid->camss->dev, "%s: Enter, csid%d enable = %d\n",
+ __func__, csid->id, enable);
+
+ if (enable) {
+ u8 vc = 0; /* TODO: How to get this from sensor? */
+ u8 cid = vc * 4;
+ u8 dt, dt_shift, df;
+ u32 val;
+ int ret;
+
+ ret = v4l2_ctrl_handler_setup(&csid->ctrls);
+ if (ret < 0) {
+ dev_err(csid->camss->dev,
+ "could not sync v4l2 controls\n");
+ return ret;
+ }
+
+ if (!tg->enabled &&
+ !media_entity_remote_pad(&csid->pads[MSM_CSID_PAD_SINK])) {
+ return -ENOLINK;
+ }
+
+ /* Reset */
+ writel(0x7FFF, csid->base + CAMSS_CSID_RST_CMD);
+ wait_for_completion(&csid->reset_complete);
+
+ dt = csid_get_data_type(csid->fmt[MSM_CSID_PAD_SRC].code);
+
+ if (tg->enabled) {
+ /* Config Test Generator */
+ u32 num_bytes_per_line =
+ csid->fmt[MSM_CSID_PAD_SRC].width * 2;
+ u32 num_lines = csid->fmt[MSM_CSID_PAD_SRC].height;
+
+ /* 31:24 V blank, 23:13 H blank, 3:2 num of active DT */
+ /* 1:0 VC */
+ val = ((CAMSS_CSID_TG_VC_CFG_V_BLANKING & 0xff) << 24) |
+ ((CAMSS_CSID_TG_VC_CFG_H_BLANKING & 0x7ff) << 13);
+ writel(val, csid->base + CAMSS_CSID_TG_VC_CFG);
+
+ /* 28:16 bytes per lines, 12:0 num of lines */
+ val = ((num_bytes_per_line & 0x1FFF) << 16) |
+ (num_lines & 0x1FFF);
+ writel(val, csid->base + CAMSS_CSID_TG_DT_n_CGG_0(0));
+
+ /* 5:0 data type */
+ val = dt;
+ writel(val, csid->base + CAMSS_CSID_TG_DT_n_CGG_1(0));
+
+ /* 2:0 output random */
+ val = tg->payload_mode;
+ writel(val, csid->base + CAMSS_CSID_TG_DT_n_CGG_2(0));
+ } else {
+ struct csid_phy_config *phy = &csid->phy;
+
+ val = phy->lane_cnt - 1;
+ val |= phy->lane_assign << 4;
+
+ writel(val, csid->base + CAMSS_CSID_CORE_CTRL_0);
+
+ val = phy->csiphy_id << 17;
+ val |= 0x9;
+
+ writel(val, csid->base + CAMSS_CSID_CORE_CTRL_1);
+ }
+
+ /* Config LUT */
+
+ dt_shift = (cid % 4) * 8;
+ df = csid_get_decode_format(csid->fmt[MSM_CSID_PAD_SINK].code);
+
+ val = readl(csid->base + CAMSS_CSID_CID_LUT_VC_n(vc));
+ val &= ~(0xff << dt_shift);
+ val |= dt << dt_shift;
+ writel(val, csid->base + CAMSS_CSID_CID_LUT_VC_n(vc));
+
+ val = (df << 4) | 0x3;
+ writel(val, csid->base + CAMSS_CSID_CID_n_CFG(cid));
+
+ if (tg->enabled) {
+ val = 0x00a06437;
+ writel(val, csid->base + CAMSS_CSID_TG_CTRL);
+ }
+ } else {
+ if (tg->enabled) {
+ u32 val = 0x00a06436;
+ writel(val, csid->base + CAMSS_CSID_TG_CTRL);
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * __csid_get_format - Get pointer to format structure
+ * @csid: CSID device
+ * @cfg: V4L2 subdev pad configuration
+ * @pad: pad from which format is requested
+ * @which: TRY or ACTIVE format
+ *
+ * Return pointer to TRY or ACTIVE format structure
+ */
+static struct v4l2_mbus_framefmt *
+__csid_get_format(struct csid_device *csid,
+ struct v4l2_subdev_pad_config *cfg,
+ unsigned int pad,
+ enum v4l2_subdev_format_whence which)
+{
+ if (which == V4L2_SUBDEV_FORMAT_TRY)
+ return v4l2_subdev_get_try_format(&csid->subdev, cfg, pad);
+
+ return &csid->fmt[pad];
+}
+
+/*
+ * csid_get_format - Handle get format by pads subdev method
+ * @sd: CSID V4L2 subdevice
+ * @cfg: V4L2 subdev pad configuration
+ * @fmt: pointer to v4l2 subdev format structure
+ *
+ * Return -EINVAL or zero on success
+ */
+static int csid_get_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct csid_device *csid = v4l2_get_subdevdata(sd);
+ struct v4l2_mbus_framefmt *format;
+
+ format = __csid_get_format(csid, cfg, fmt->pad, fmt->which);
+ if (format == NULL)
+ return -EINVAL;
+
+ fmt->format = *format;
+
+ return 0;
+}
+
+/*
+ * csid_set_format - Handle set format by pads subdev method
+ * @sd: CSID V4L2 subdevice
+ * @cfg: V4L2 subdev pad configuration
+ * @fmt: pointer to v4l2 subdev format structure
+ *
+ * Return -EINVAL or zero on success
+ */
+static int csid_set_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct csid_device *csid = v4l2_get_subdevdata(sd);
+ struct v4l2_mbus_framefmt *format;
+
+ if (fmt->pad == MSM_CSID_PAD_SINK) {
+ /* Set format on sink pad */
+ format = __csid_get_format(csid, cfg, fmt->pad,
+ fmt->which);
+ if (format == NULL)
+ return -EINVAL;
+
+ *format = fmt->format;
+
+ /* Reset format on source pad */
+ format = __csid_get_format(csid, cfg, MSM_CSID_PAD_SRC,
+ fmt->which);
+ if (format == NULL)
+ return -EINVAL;
+
+ *format = fmt->format;
+ } else {
+ if (media_entity_remote_pad(&csid->pads[MSM_CSID_PAD_SINK])) {
+ /* CSID is linked to CSIPHY */
+ /* Reset format on source pad to sink pad format */
+
+ format = __csid_get_format(csid, cfg, MSM_CSID_PAD_SINK,
+ fmt->which);
+ if (format == NULL)
+ return -EINVAL;
+
+ fmt->format = *format;
+
+ format = __csid_get_format(csid, cfg, fmt->pad,
+ fmt->which);
+ if (format == NULL)
+ return -EINVAL;
+
+ *format = fmt->format;
+ } else {
+ /* CSID is not linked to CSIPHY */
+ /* Set format on source pad to allow */
+ /* test generator usage */
+
+ format = __csid_get_format(csid, cfg, fmt->pad,
+ fmt->which);
+ if (format == NULL)
+ return -EINVAL;
+
+ /* Accept only YUV422 format */
+ fmt->format.code = MEDIA_BUS_FMT_UYVY8_2X8;
+ *format = fmt->format;
+ }
+ }
+
+ return 0;
+}
+
+static const char * const csid_test_pattern_menu[] = {
+ "Disabled",
+ "Incrementing",
+ "Alternating 55/AA",
+ "All Zeros",
+ "All Ones",
+ "Random Data",
+};
+
+static int csid_set_test_pattern(struct csid_device *csid, s32 value)
+{
+ struct csid_testgen_config *tg = &csid->testgen;
+
+ /* If CSID is linked to CSIPHY, do not allow to enable test generator */
+ if (value && media_entity_remote_pad(&csid->pads[MSM_CSID_PAD_SINK]))
+ return -EBUSY;
+
+ tg->enabled = !!value;
+
+ switch (value) {
+ case 1:
+ tg->payload_mode = CSID_PAYLOAD_MODE_INCREMENTING;
+ break;
+ case 2:
+ tg->payload_mode = CSID_PAYLOAD_MODE_ALTERNATING_55_AA;
+ break;
+ case 3:
+ tg->payload_mode = CSID_PAYLOAD_MODE_ALL_ZEROES;
+ break;
+ case 4:
+ tg->payload_mode = CSID_PAYLOAD_MODE_ALL_ONES;
+ break;
+ case 5:
+ tg->payload_mode = CSID_PAYLOAD_MODE_RANDOM;
+ break;
+ }
+
+ return 0;
+}
+
+static int csid_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct csid_device *csid = container_of(ctrl->handler,
+ struct csid_device, ctrls);
+ int ret = -EINVAL;
+
+ switch (ctrl->id) {
+ case V4L2_CID_TEST_PATTERN:
+ ret = csid_set_test_pattern(csid, ctrl->val);
+ break;
+ }
+
+ return ret;
+}
+
+static struct v4l2_ctrl_ops csid_ctrl_ops = {
+ .s_ctrl = csid_s_ctrl,
+};
+
+/*
+ * msm_csid_subdev_init - Initialize CSID device structure and resources
+ * @csid: CSID device
+ * @camss: Camera sub-system structure
+ * @res: CSID module resources table
+ * @id: CSID module id
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+int msm_csid_subdev_init(struct csid_device *csid, struct camss *camss,
+ struct resources *res, u8 id)
+{
+ struct device *dev = camss->dev;
+ struct platform_device *pdev = container_of(dev, struct platform_device, dev);
+ struct resource *r;
+ int i;
+ int ret;
+
+ csid->camss = camss;
+
+ csid->id = id;
+
+ /* Memory */
+
+ r = platform_get_resource_byname(pdev, IORESOURCE_MEM, res->reg[0]);
+ csid->base = devm_ioremap_resource(dev, r);
+ if (IS_ERR(csid->base)) {
+ dev_err(dev, "could not map memory\n");
+ return PTR_ERR(csid->base);
+ }
+
+ /* Interrupt */
+
+ r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, res->interrupt[0]);
+ csid->irq = r->start;
+ if (IS_ERR_VALUE(csid->irq))
+ return csid->irq;
+
+ ret = devm_request_irq(dev, csid->irq, csid_isr,
+ IRQF_TRIGGER_RISING, dev_name(dev), csid);
+ if (ret < 0) {
+ dev_err(dev, "request_irq failed\n");
+ return ret;
+ }
+
+ disable_irq(csid->irq);
+
+ /* Clocks */
+
+ i = 0;
+ csid->nclocks = 0;
+ while (res->clock[i++])
+ csid->nclocks++;
+
+ csid->clock = devm_kzalloc(dev, csid->nclocks * sizeof(*csid->clock),
+ GFP_KERNEL);
+ if (!csid->clock) {
+ dev_err(dev, "could not allocate memory\n");
+ return -ENOMEM;
+ }
+
+ csid->clock_rate = devm_kzalloc(dev, csid->nclocks *
+ sizeof(*csid->clock_rate), GFP_KERNEL);
+ if (!csid->clock_rate) {
+ dev_err(dev, "could not allocate memory\n");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < csid->nclocks; i++) {
+ csid->clock[i] = devm_clk_get(dev, res->clock[i]);
+ if (IS_ERR(csid->clock[i]))
+ return PTR_ERR(csid->clock[i]);
+ csid->clock_rate[i] = res->clock_rate[i];
+ }
+
+ /* Regulator */
+
+ csid->vdda = devm_regulator_get(dev, res->regulator[0]);
+ if (IS_ERR(csid->vdda)) {
+ dev_err(dev, "could not get regulator\n");
+ return PTR_ERR(csid->vdda);
+ }
+
+ init_completion(&csid->reset_complete);
+
+ return 0;
+}
+
+/*
+ * csid_get_lane_assign - Calculate CSI2 lane assign configuration parameter
+ * @lane_cfg - CSI2 lane configuration
+ *
+ * Return lane assign
+ */
+static u32 csid_get_lane_assign(struct camss_csiphy_lanes_cfg *lanecfg)
+{
+ u32 lane_assign = 0;
+ int i;
+
+ for (i = 0; i < lanecfg->num_data; i++)
+ lane_assign |= lanecfg->data[i].pos << (i * 4);
+
+ return lane_assign;
+}
+
+/*
+ * csid_link_setup - Setup CSID connections
+ * @entity: Pointer to media entity structure
+ * @local: Pointer to local pad
+ * @remote: Pointer to remote pad
+ * @flags: Link flags
+ *
+ * Rreturn 0 on success
+ */
+static int csid_link_setup(struct media_entity *entity,
+ const struct media_pad *local,
+ const struct media_pad *remote, u32 flags)
+{
+ if ((local->flags & MEDIA_PAD_FL_SINK) &&
+ (flags & MEDIA_LNK_FL_ENABLED)) {
+ struct v4l2_subdev *sd;
+ struct csid_device *csid;
+ struct csiphy_device *csiphy;
+ struct camss_csiphy_lanes_cfg *lanecfg;
+
+ sd = container_of(entity, struct v4l2_subdev, entity);
+ csid = v4l2_get_subdevdata(sd);
+
+ /* If test generator is enabled
+ * do not allow a link from CSIPHY to CSID */
+ if (csid->testgen_mode->cur.val != 0)
+ return -EBUSY;
+
+ sd = container_of(remote->entity, struct v4l2_subdev, entity);
+ csiphy = v4l2_get_subdevdata(sd);
+
+ /* If a sensor is not linked to CSIPHY
+ * do no allow a link from CSIPHY to CSID */
+ if (!csiphy->cfg.csi2)
+ return -EPERM;
+
+ csid->phy.csiphy_id = csiphy->id;
+
+ lanecfg = &csiphy->cfg.csi2->lanecfg;
+ csid->phy.lane_cnt = lanecfg->num_data;
+ csid->phy.lane_assign = csid_get_lane_assign(lanecfg);
+ }
+
+ return 0;
+}
+
+static const struct v4l2_subdev_core_ops csid_core_ops = {
+ .s_power = csid_set_power,
+};
+
+static const struct v4l2_subdev_video_ops csid_video_ops = {
+ .s_stream = csid_set_stream,
+};
+
+static const struct v4l2_subdev_pad_ops csid_pad_ops = {
+ .get_fmt = csid_get_format,
+ .set_fmt = csid_set_format,
+};
+
+static const struct v4l2_subdev_ops csid_v4l2_ops = {
+ .core = &csid_core_ops,
+ .video = &csid_video_ops,
+ .pad = &csid_pad_ops,
+};
+
+static const struct v4l2_subdev_internal_ops csid_v4l2_internal_ops;
+
+static const struct media_entity_operations csid_media_ops = {
+ .link_setup = csid_link_setup,
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+/*
+ * msm_csid_register_entities - Register subdev node for CSID module
+ * @csid: CSID device
+ * @v4l2_dev: V4L2 device
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+int msm_csid_register_entities(struct csid_device *csid,
+ struct v4l2_device *v4l2_dev)
+{
+ struct v4l2_subdev *sd = &csid->subdev;
+ struct media_pad *pads = csid->pads;
+ int ret;
+
+ v4l2_subdev_init(sd, &csid_v4l2_ops);
+ sd->internal_ops = &csid_v4l2_internal_ops;
+ sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ snprintf(sd->name, ARRAY_SIZE(sd->name), "%s%d",
+ MSM_CSID_NAME, csid->id);
+ v4l2_set_subdevdata(sd, csid);
+
+ v4l2_ctrl_handler_init(&csid->ctrls, 1);
+ csid->testgen_mode = v4l2_ctrl_new_std_menu_items(&csid->ctrls,
+ &csid_ctrl_ops, V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(csid_test_pattern_menu) - 1, 0, 0,
+ csid_test_pattern_menu);
+
+ if (csid->ctrls.error) {
+ dev_err(csid->camss->dev, "failed to init ctrl: %d\n",
+ csid->ctrls.error);
+ ret = csid->ctrls.error;
+ goto free_ctrl;
+ }
+
+ csid->subdev.ctrl_handler = &csid->ctrls;
+
+ pads[MSM_CSID_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
+ pads[MSM_CSID_PAD_SRC].flags = MEDIA_PAD_FL_SOURCE;
+
+ sd->entity.ops = &csid_media_ops;
+ ret = media_entity_init(&sd->entity, MSM_CSID_PADS_NUM, pads, 0);
+ if (ret < 0) {
+ dev_err(csid->camss->dev, "failed to init media entity");
+ goto free_ctrl;
+ }
+
+ ret = v4l2_device_register_subdev(v4l2_dev, sd);
+ if (ret < 0) {
+ dev_err(csid->camss->dev, "failed to register subdev");
+ goto media_cleanup;
+ }
+
+ return 0;
+
+media_cleanup:
+ media_entity_cleanup(&sd->entity);
+free_ctrl:
+ v4l2_ctrl_handler_free(&csid->ctrls);
+
+ return ret;
+}
+
+/*
+ * msm_csid_unregister_entities - Unregister CSID module subdev node
+ * @csid: CSID device
+ */
+void msm_csid_unregister_entities(struct csid_device *csid)
+{
+ v4l2_device_unregister_subdev(&csid->subdev);
+ v4l2_ctrl_handler_free(&csid->ctrls);
+}
projects / karo-tx-linux.git / blobdiff