From: Laurent Pinchart Date: Tue, 12 Aug 2025 21:45:47 +0000 (+0300) Subject: media: i2c: ov5675: Replace client->dev usage X-Git-Tag: v6.18-rc1~133^2~117 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=381045e43b7376e4516f5482e478d680fe3c7c05;p=thirdparty%2Fkernel%2Fstable.git media: i2c: ov5675: Replace client->dev usage The driver needs to access the struct device in many places, and retrieves it from the i2c_client itself retrieved with v4l2_get_subdevdata(). Store it as a pointer in struct ov5675 and access it from there instead, to simplify the driver. While at it, fix a mistake in the sort order of include statements. Signed-off-by: Laurent Pinchart Signed-off-by: Sakari Ailus Reviewed-by: Mehdi Djait Signed-off-by: Hans Verkuil --- diff --git a/drivers/media/i2c/ov5675.c b/drivers/media/i2c/ov5675.c index e7aec281e9a49..fe16d5439e398 100644 --- a/drivers/media/i2c/ov5675.c +++ b/drivers/media/i2c/ov5675.c @@ -1,7 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2019 Intel Corporation. -#include #include #include #include @@ -11,6 +10,8 @@ #include #include #include +#include + #include #include #include @@ -493,6 +494,8 @@ static const struct ov5675_mode supported_modes[] = { }; struct ov5675 { + struct device *dev; + struct v4l2_subdev sd; struct media_pad pad; struct v4l2_ctrl_handler ctrl_handler; @@ -584,7 +587,6 @@ static int ov5675_write_reg(struct ov5675 *ov5675, u16 reg, u16 len, u32 val) static int ov5675_write_reg_list(struct ov5675 *ov5675, const struct ov5675_reg_list *r_list) { - struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); unsigned int i; int ret; @@ -592,7 +594,7 @@ static int ov5675_write_reg_list(struct ov5675 *ov5675, ret = ov5675_write_reg(ov5675, r_list->regs[i].address, 1, r_list->regs[i].val); if (ret) { - dev_err_ratelimited(&client->dev, + dev_err_ratelimited(ov5675->dev, "failed to write reg 0x%4.4x. error = %d", r_list->regs[i].address, ret); return ret; @@ -700,7 +702,6 @@ static int ov5675_set_ctrl(struct v4l2_ctrl *ctrl) { struct ov5675 *ov5675 = container_of(ctrl->handler, struct ov5675, ctrl_handler); - struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); s64 exposure_max; int ret = 0; @@ -716,7 +717,7 @@ static int ov5675_set_ctrl(struct v4l2_ctrl *ctrl) } /* V4L2 controls values will be applied only when power is already up */ - if (!pm_runtime_get_if_in_use(&client->dev)) + if (!pm_runtime_get_if_in_use(ov5675->dev)) return 0; switch (ctrl->id) { @@ -765,7 +766,7 @@ static int ov5675_set_ctrl(struct v4l2_ctrl *ctrl) break; } - pm_runtime_put(&client->dev); + pm_runtime_put(ov5675->dev); return ret; } @@ -776,7 +777,6 @@ static const struct v4l2_ctrl_ops ov5675_ctrl_ops = { static int ov5675_init_controls(struct ov5675 *ov5675) { - struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); struct v4l2_fwnode_device_properties props; struct v4l2_ctrl_handler *ctrl_hdlr; s64 exposure_max, h_blank; @@ -839,7 +839,7 @@ static int ov5675_init_controls(struct ov5675 *ov5675) return ctrl_hdlr->error; } - ret = v4l2_fwnode_device_parse(&client->dev, &props); + ret = v4l2_fwnode_device_parse(ov5675->dev, &props); if (ret) goto error; @@ -869,7 +869,6 @@ static void ov5675_update_pad_format(const struct ov5675_mode *mode, static int ov5675_identify_module(struct ov5675 *ov5675) { - struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); int ret; u32 val; @@ -882,7 +881,7 @@ static int ov5675_identify_module(struct ov5675 *ov5675) return ret; if (val != OV5675_CHIP_ID) { - dev_err(&client->dev, "chip id mismatch: %x!=%x", + dev_err(ov5675->dev, "chip id mismatch: %x!=%x", OV5675_CHIP_ID, val); return -ENXIO; } @@ -894,7 +893,6 @@ static int ov5675_identify_module(struct ov5675 *ov5675) static int ov5675_start_streaming(struct ov5675 *ov5675) { - struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); const struct ov5675_reg_list *reg_list; int link_freq_index, ret; @@ -906,14 +904,14 @@ static int ov5675_start_streaming(struct ov5675 *ov5675) reg_list = &link_freq_configs[link_freq_index].reg_list; ret = ov5675_write_reg_list(ov5675, reg_list); if (ret) { - dev_err(&client->dev, "failed to set plls"); + dev_err(ov5675->dev, "failed to set plls"); return ret; } reg_list = &ov5675->cur_mode->reg_list; ret = ov5675_write_reg_list(ov5675, reg_list); if (ret) { - dev_err(&client->dev, "failed to set mode"); + dev_err(ov5675->dev, "failed to set mode"); return ret; } @@ -924,7 +922,7 @@ static int ov5675_start_streaming(struct ov5675 *ov5675) ret = ov5675_write_reg(ov5675, OV5675_REG_MODE_SELECT, OV5675_REG_VALUE_08BIT, OV5675_MODE_STREAMING); if (ret) { - dev_err(&client->dev, "failed to set stream"); + dev_err(ov5675->dev, "failed to set stream"); return ret; } @@ -933,22 +931,19 @@ static int ov5675_start_streaming(struct ov5675 *ov5675) static void ov5675_stop_streaming(struct ov5675 *ov5675) { - struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd); - if (ov5675_write_reg(ov5675, OV5675_REG_MODE_SELECT, OV5675_REG_VALUE_08BIT, OV5675_MODE_STANDBY)) - dev_err(&client->dev, "failed to set stream"); + dev_err(ov5675->dev, "failed to set stream"); } static int ov5675_set_stream(struct v4l2_subdev *sd, int enable) { struct ov5675 *ov5675 = to_ov5675(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); int ret = 0; mutex_lock(&ov5675->mutex); if (enable) { - ret = pm_runtime_resume_and_get(&client->dev); + ret = pm_runtime_resume_and_get(ov5675->dev); if (ret < 0) { mutex_unlock(&ov5675->mutex); return ret; @@ -958,11 +953,11 @@ static int ov5675_set_stream(struct v4l2_subdev *sd, int enable) if (ret) { enable = 0; ov5675_stop_streaming(ov5675); - pm_runtime_put(&client->dev); + pm_runtime_put(ov5675->dev); } } else { ov5675_stop_streaming(ov5675); - pm_runtime_put(&client->dev); + pm_runtime_put(ov5675->dev); } mutex_unlock(&ov5675->mutex); @@ -1171,8 +1166,9 @@ static const struct v4l2_subdev_internal_ops ov5675_internal_ops = { .open = ov5675_open, }; -static int ov5675_get_hwcfg(struct ov5675 *ov5675, struct device *dev) +static int ov5675_get_hwcfg(struct ov5675 *ov5675) { + struct device *dev = ov5675->dev; struct fwnode_handle *ep; struct fwnode_handle *fwnode = dev_fwnode(dev); struct v4l2_fwnode_endpoint bus_cfg = { @@ -1276,12 +1272,12 @@ static void ov5675_remove(struct i2c_client *client) v4l2_async_unregister_subdev(sd); media_entity_cleanup(&sd->entity); v4l2_ctrl_handler_free(sd->ctrl_handler); - pm_runtime_disable(&client->dev); + pm_runtime_disable(ov5675->dev); mutex_destroy(&ov5675->mutex); - if (!pm_runtime_status_suspended(&client->dev)) - ov5675_power_off(&client->dev); - pm_runtime_set_suspended(&client->dev); + if (!pm_runtime_status_suspended(ov5675->dev)) + ov5675_power_off(ov5675->dev); + pm_runtime_set_suspended(ov5675->dev); } static int ov5675_probe(struct i2c_client *client) @@ -1294,23 +1290,25 @@ static int ov5675_probe(struct i2c_client *client) if (!ov5675) return -ENOMEM; - ret = ov5675_get_hwcfg(ov5675, &client->dev); + ov5675->dev = &client->dev; + + ret = ov5675_get_hwcfg(ov5675); if (ret) return ret; v4l2_i2c_subdev_init(&ov5675->sd, client, &ov5675_subdev_ops); - ret = ov5675_power_on(&client->dev); + ret = ov5675_power_on(ov5675->dev); if (ret) { - dev_err(&client->dev, "failed to power on: %d\n", ret); + dev_err(ov5675->dev, "failed to power on: %d\n", ret); return ret; } - full_power = acpi_dev_state_d0(&client->dev); + full_power = acpi_dev_state_d0(ov5675->dev); if (full_power) { ret = ov5675_identify_module(ov5675); if (ret) { - dev_err(&client->dev, "failed to find sensor: %d", ret); + dev_err(ov5675->dev, "failed to find sensor: %d", ret); goto probe_power_off; } } @@ -1319,7 +1317,7 @@ static int ov5675_probe(struct i2c_client *client) ov5675->cur_mode = &supported_modes[0]; ret = ov5675_init_controls(ov5675); if (ret) { - dev_err(&client->dev, "failed to init controls: %d", ret); + dev_err(ov5675->dev, "failed to init controls: %d", ret); goto probe_error_v4l2_ctrl_handler_free; } @@ -1330,22 +1328,22 @@ static int ov5675_probe(struct i2c_client *client) ov5675->pad.flags = MEDIA_PAD_FL_SOURCE; ret = media_entity_pads_init(&ov5675->sd.entity, 1, &ov5675->pad); if (ret) { - dev_err(&client->dev, "failed to init entity pads: %d", ret); + dev_err(ov5675->dev, "failed to init entity pads: %d", ret); goto probe_error_v4l2_ctrl_handler_free; } ret = v4l2_async_register_subdev_sensor(&ov5675->sd); if (ret < 0) { - dev_err(&client->dev, "failed to register V4L2 subdev: %d", + dev_err(ov5675->dev, "failed to register V4L2 subdev: %d", ret); goto probe_error_media_entity_cleanup; } /* Set the device's state to active if it's in D0 state. */ if (full_power) - pm_runtime_set_active(&client->dev); - pm_runtime_enable(&client->dev); - pm_runtime_idle(&client->dev); + pm_runtime_set_active(ov5675->dev); + pm_runtime_enable(ov5675->dev); + pm_runtime_idle(ov5675->dev); return 0; @@ -1356,7 +1354,7 @@ probe_error_v4l2_ctrl_handler_free: v4l2_ctrl_handler_free(ov5675->sd.ctrl_handler); mutex_destroy(&ov5675->mutex); probe_power_off: - ov5675_power_off(&client->dev); + ov5675_power_off(ov5675->dev); return ret; }