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Message-Id: <1527525431-22852-3-git-send-email-jacopo+renesas@jmondi.org>
Date: Mon, 28 May 2018 18:37:08 +0200
From: Jacopo Mondi <jacopo+renesas@...ndi.org>
To: hverkuil@...all.nl, laurent.pinchart@...asonboard.com,
sakari.ailus@....fi, mchehab@...nel.org,
ysato@...rs.sourceforge.jp, dalias@...c.org
Cc: Jacopo Mondi <jacopo+renesas@...ndi.org>,
linux-renesas-soc@...r.kernel.org, linux-media@...r.kernel.org,
linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/5] media: i2c: rj54n1: Remove soc_camera dependencies
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+renesas@...ndi.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 <jacopo@...ndi.org>
+L: linux-media@...r.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-media@...r.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.liakhovetski@....de>
+ * Copyright (C) 2018, Jacopo Mondi <jacopo@...ndi.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.liakhovetski@....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
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