Remove soc_camera framework dependencies from rj54n1 sensor driver. - Handle clock - Handle GPIOs (named 'powerup' and 'enable') - Register the async subdevice - Remove g/s_mbus_config as they're deprecated. - Adjust build system - List the driver as maintained for 'Odd Fixes' as I don't have HW to test.
This commits does not remove the original soc_camera based driver. Compiled tested only. Signed-off-by: Jacopo Mondi <jacopo+rene...@jmondi.org> --- MAINTAINERS | 8 +++ drivers/media/i2c/Kconfig | 11 +++ drivers/media/i2c/Makefile | 1 + drivers/media/i2c/rj54n1cb0c.c | 153 +++++++++++++++++++++++------------------ 4 files changed, 107 insertions(+), 66 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index cbcd5ab..0dd7532 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12680,6 +12680,14 @@ W: http://www.ibm.com/developerworks/linux/linux390/ S: Supported F: net/smc/ +SHARP RJ54N1CB0C SENSOR DRIVER +M: Jacopo Mondi <jac...@jmondi.org> +L: linux-me...@vger.kernel.org +T: git git://linuxtv.org/media_tree.git +S: Odd fixes +F: drivers/media/i2c/rj54n1cb0c.c +F: include/media/i2c/rj54n1cb0c.h + SH_VEU V4L2 MEM2MEM DRIVER L: linux-me...@vger.kernel.org S: Orphan diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index b95b447..7b5a224 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -846,6 +846,17 @@ config VIDEO_NOON010PC30 source "drivers/media/i2c/m5mols/Kconfig" +config VIDEO_RJ54N1 + tristate "Sharp RJ54N1CB0C sensor support" + depends on I2C && VIDEO_V4L2 + depends on MEDIA_CAMERA_SUPPORT + help + This is a V4L2 sensor-level driver for Sharp RJ54N1CB0C CMOS image + sensor. + + To compile this driver as a module, choose M here: the + module will be called rj54n1. + config VIDEO_S5K6AA tristate "Samsung S5K6AAFX sensor support" depends on MEDIA_CAMERA_SUPPORT diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index ff6e291..3f9c1f7 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -86,6 +86,7 @@ obj-$(CONFIG_VIDEO_MT9V011) += mt9v011.o obj-$(CONFIG_VIDEO_MT9V032) += mt9v032.o obj-$(CONFIG_VIDEO_SR030PC30) += sr030pc30.o obj-$(CONFIG_VIDEO_NOON010PC30) += noon010pc30.o +obj-$(CONFIG_VIDEO_RJ54N1) += rj54n1cb0c.o obj-$(CONFIG_VIDEO_S5K6AA) += s5k6aa.o obj-$(CONFIG_VIDEO_S5K6A3) += s5k6a3.o obj-$(CONFIG_VIDEO_S5K4ECGX) += s5k4ecgx.o diff --git a/drivers/media/i2c/rj54n1cb0c.c b/drivers/media/i2c/rj54n1cb0c.c index 02398d0..6ad998a 100644 --- a/drivers/media/i2c/rj54n1cb0c.c +++ b/drivers/media/i2c/rj54n1cb0c.c @@ -1,25 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Driver for RJ54N1CB0C CMOS Image Sensor from Sharp * - * Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovet...@gmx.de> + * Copyright (C) 2018, Jacopo Mondi <jac...@jmondi.org> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. + * Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovet...@gmx.de> */ +#include <linux/clk.h> #include <linux/delay.h> +#include <linux/gpio/consumer.h> #include <linux/i2c.h> +#include <linux/module.h> #include <linux/slab.h> #include <linux/v4l2-mediabus.h> #include <linux/videodev2.h> -#include <linux/module.h> #include <media/i2c/rj54n1cb0c.h> -#include <media/soc_camera.h> -#include <media/v4l2-clk.h> -#include <media/v4l2-subdev.h> +#include <media/v4l2-device.h> #include <media/v4l2-ctrls.h> +#include <media/v4l2-subdev.h> #define RJ54N1_DEV_CODE 0x0400 #define RJ54N1_DEV_CODE2 0x0401 @@ -151,7 +151,9 @@ struct rj54n1_clock_div { struct rj54n1 { struct v4l2_subdev subdev; struct v4l2_ctrl_handler hdl; - struct v4l2_clk *clk; + struct clk *clk; + struct gpio_desc *pwup_gpio; + struct gpio_desc *enable_gpio; struct rj54n1_clock_div clk_div; const struct rj54n1_datafmt *fmt; struct v4l2_rect rect; /* Sensor window */ @@ -545,8 +547,7 @@ static int rj54n1_set_selection(struct v4l2_subdev *sd, struct i2c_client *client = v4l2_get_subdevdata(sd); struct rj54n1 *rj54n1 = to_rj54n1(client); const struct v4l2_rect *rect = &sel->r; - int dummy = 0, output_w, output_h, - input_w = rect->width, input_h = rect->height; + int output_w, output_h, input_w = rect->width, input_h = rect->height; int ret; if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || @@ -554,11 +555,8 @@ static int rj54n1_set_selection(struct v4l2_subdev *sd, return -EINVAL; /* arbitrary minimum width and height, edges unimportant */ - soc_camera_limit_side(&dummy, &input_w, - RJ54N1_COLUMN_SKIP, 8, RJ54N1_MAX_WIDTH); - - soc_camera_limit_side(&dummy, &input_h, - RJ54N1_ROW_SKIP, 8, RJ54N1_MAX_HEIGHT); + v4l_bound_align_image(&input_w, 8, RJ54N1_MAX_WIDTH, 0, + &input_h, 8, RJ54N1_MAX_HEIGHT, 0, 0); output_w = (input_w * 1024 + rj54n1->resize / 2) / rj54n1->resize; output_h = (input_h * 1024 + rj54n1->resize / 2) / rj54n1->resize; @@ -618,6 +616,9 @@ static int rj54n1_get_fmt(struct v4l2_subdev *sd, mf->code = rj54n1->fmt->code; mf->colorspace = rj54n1->fmt->colorspace; + mf->ycbcr_enc = V4L2_YCBCR_ENC_601; + mf->xfer_func = V4L2_XFER_FUNC_SRGB; + mf->quantization = V4L2_QUANTIZATION_DEFAULT; mf->field = V4L2_FIELD_NONE; mf->width = rj54n1->width; mf->height = rj54n1->height; @@ -1163,10 +1164,27 @@ static int rj54n1_s_register(struct v4l2_subdev *sd, static int rj54n1_s_power(struct v4l2_subdev *sd, int on) { struct i2c_client *client = v4l2_get_subdevdata(sd); - struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); struct rj54n1 *rj54n1 = to_rj54n1(client); - return soc_camera_set_power(&client->dev, ssdd, rj54n1->clk, on); + if (on) { + if (rj54n1->pwup_gpio) + gpiod_set_value(rj54n1->pwup_gpio, 1); + if (rj54n1->enable_gpio) + gpiod_set_value(rj54n1->enable_gpio, 1); + + msleep(1); + + return clk_prepare_enable(rj54n1->clk); + } + + clk_disable_unprepare(rj54n1->clk); + + if (rj54n1->enable_gpio) + gpiod_set_value(rj54n1->enable_gpio, 0); + if (rj54n1->pwup_gpio) + gpiod_set_value(rj54n1->pwup_gpio, 0); + + return 0; } static int rj54n1_s_ctrl(struct v4l2_ctrl *ctrl) @@ -1221,40 +1239,8 @@ static const struct v4l2_subdev_core_ops rj54n1_subdev_core_ops = { .s_power = rj54n1_s_power, }; -static int rj54n1_g_mbus_config(struct v4l2_subdev *sd, - struct v4l2_mbus_config *cfg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); - - cfg->flags = - V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING | - V4L2_MBUS_MASTER | V4L2_MBUS_DATA_ACTIVE_HIGH | - V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH; - cfg->type = V4L2_MBUS_PARALLEL; - cfg->flags = soc_camera_apply_board_flags(ssdd, cfg); - - return 0; -} - -static int rj54n1_s_mbus_config(struct v4l2_subdev *sd, - const struct v4l2_mbus_config *cfg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); - - /* Figures 2.5-1 to 2.5-3 - default falling pixclk edge */ - if (soc_camera_apply_board_flags(ssdd, cfg) & - V4L2_MBUS_PCLK_SAMPLE_RISING) - return reg_write(client, RJ54N1_OUT_SIGPO, 1 << 4); - else - return reg_write(client, RJ54N1_OUT_SIGPO, 0); -} - static const struct v4l2_subdev_video_ops rj54n1_subdev_video_ops = { .s_stream = rj54n1_s_stream, - .g_mbus_config = rj54n1_g_mbus_config, - .s_mbus_config = rj54n1_s_mbus_config, }; static const struct v4l2_subdev_pad_ops rj54n1_subdev_pad_ops = { @@ -1316,17 +1302,16 @@ static int rj54n1_probe(struct i2c_client *client, const struct i2c_device_id *did) { struct rj54n1 *rj54n1; - struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); - struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + struct i2c_adapter *adapter = client->adapter; struct rj54n1_pdata *rj54n1_priv; int ret; - if (!ssdd || !ssdd->drv_priv) { + if (!client->dev.platform_data) { dev_err(&client->dev, "RJ54N1CB0C: missing platform data!\n"); return -EINVAL; } - rj54n1_priv = ssdd->drv_priv; + rj54n1_priv = client->dev.platform_data; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { dev_warn(&adapter->dev, @@ -1364,32 +1349,68 @@ static int rj54n1_probe(struct i2c_client *client, rj54n1->tgclk_mhz = (rj54n1_priv->mclk_freq / PLL_L * PLL_N) / (clk_div.ratio_tg + 1) / (clk_div.ratio_t + 1); - rj54n1->clk = v4l2_clk_get(&client->dev, "mclk"); + rj54n1->clk = clk_get(&client->dev, NULL); if (IS_ERR(rj54n1->clk)) { ret = PTR_ERR(rj54n1->clk); - goto eclkget; + goto err_free_ctrl; } - ret = rj54n1_video_probe(client, rj54n1_priv); - if (ret < 0) { - v4l2_clk_put(rj54n1->clk); -eclkget: - v4l2_ctrl_handler_free(&rj54n1->hdl); + rj54n1->pwup_gpio = gpiod_get_optional(&client->dev, "powerup", + GPIOD_OUT_LOW); + if (IS_ERR(rj54n1->pwup_gpio)) { + dev_info(&client->dev, "Unable to get GPIO \"powerup\": %ld\n", + PTR_ERR(rj54n1->pwup_gpio)); + ret = PTR_ERR(rj54n1->pwup_gpio); + goto err_clk_put; + } + + rj54n1->enable_gpio = gpiod_get_optional(&client->dev, "enable", + GPIOD_OUT_LOW); + if (IS_ERR(rj54n1->enable_gpio)) { + dev_info(&client->dev, "Unable to get GPIO \"enable\": %ld\n", + PTR_ERR(rj54n1->enable_gpio)); + ret = PTR_ERR(rj54n1->enable_gpio); + goto err_gpio_put; } + ret = rj54n1_video_probe(client, rj54n1_priv); + if (ret < 0) + goto err_gpio_put; + + ret = v4l2_async_register_subdev(&rj54n1->subdev); + if (ret) + goto err_gpio_put; + + return 0; + +err_gpio_put: + if (rj54n1->enable_gpio) + gpiod_put(rj54n1->enable_gpio); + + if (rj54n1->pwup_gpio) + gpiod_put(rj54n1->pwup_gpio); + +err_clk_put: + clk_put(rj54n1->clk); + +err_free_ctrl: + v4l2_ctrl_handler_free(&rj54n1->hdl); + return ret; } static int rj54n1_remove(struct i2c_client *client) { struct rj54n1 *rj54n1 = to_rj54n1(client); - struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); - v4l2_clk_put(rj54n1->clk); - v4l2_device_unregister_subdev(&rj54n1->subdev); - if (ssdd->free_bus) - ssdd->free_bus(ssdd); + if (rj54n1->enable_gpio) + gpiod_put(rj54n1->enable_gpio); + if (rj54n1->pwup_gpio) + gpiod_put(rj54n1->pwup_gpio); + + clk_put(rj54n1->clk); v4l2_ctrl_handler_free(&rj54n1->hdl); + v4l2_async_unregister_subdev(&rj54n1->subdev); return 0; } -- 2.7.4
