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SubjectRe: [PATCH v5 09/16] media: rkisp1: add rockchip isp1 core driver
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Date
On 12/29/17 08:52, Shunqian Zheng wrote:
> From: Jacob Chen <jacob2.chen@rock-chips.com>
>
> Add the core driver for rockchip isp1.
>
> Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>
> Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
> Signed-off-by: Yichong Zhong <zyc@rock-chips.com>
> Signed-off-by: Jacob Chen <cc@rock-chips.com>
> Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com>
> Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
> Signed-off-by: Allon Huang <allon.huang@rock-chips.com>
> Signed-off-by: Tomasz Figa <tfiga@chromium.org>
> ---
> drivers/media/platform/Kconfig | 10 +
> drivers/media/platform/Makefile | 1 +
> drivers/media/platform/rockchip/isp1/Makefile | 8 +
> drivers/media/platform/rockchip/isp1/common.h | 137 ++++++
> drivers/media/platform/rockchip/isp1/dev.c | 653 ++++++++++++++++++++++++++
> drivers/media/platform/rockchip/isp1/dev.h | 120 +++++
> 6 files changed, 929 insertions(+)
> create mode 100644 drivers/media/platform/rockchip/isp1/Makefile
> create mode 100644 drivers/media/platform/rockchip/isp1/common.h
> create mode 100644 drivers/media/platform/rockchip/isp1/dev.c
> create mode 100644 drivers/media/platform/rockchip/isp1/dev.h
>
> diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
> index fd0c998..062fffc 100644
> --- a/drivers/media/platform/Kconfig
> +++ b/drivers/media/platform/Kconfig
> @@ -117,6 +117,16 @@ config VIDEO_QCOM_CAMSS
> select VIDEOBUF2_DMA_SG
> select V4L2_FWNODE
>
> +config VIDEO_ROCKCHIP_ISP1
> + tristate "Rockchip Image Signal Processing v1 Unit driver"
> + depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
> + depends on ARCH_ROCKCHIP || COMPILE_TEST
> + select VIDEOBUF2_DMA_CONTIG
> + select V4L2_FWNODE
> + default n
> + ---help---
> + Support for ISP1 on the rockchip SoC.
> +
> config VIDEO_S3C_CAMIF
> tristate "Samsung S3C24XX/S3C64XX SoC Camera Interface driver"
> depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
> diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile
> index 003b0bb..d235908 100644
> --- a/drivers/media/platform/Makefile
> +++ b/drivers/media/platform/Makefile
> @@ -67,6 +67,7 @@ obj-$(CONFIG_VIDEO_RENESAS_FDP1) += rcar_fdp1.o
> obj-$(CONFIG_VIDEO_RENESAS_JPU) += rcar_jpu.o
> obj-$(CONFIG_VIDEO_RENESAS_VSP1) += vsp1/
>
> +obj-$(CONFIG_VIDEO_ROCKCHIP_ISP1) += rockchip/isp1/
> obj-$(CONFIG_VIDEO_ROCKCHIP_RGA) += rockchip/rga/
>
> obj-y += omap/
> diff --git a/drivers/media/platform/rockchip/isp1/Makefile b/drivers/media/platform/rockchip/isp1/Makefile
> new file mode 100644
> index 0000000..18af648
> --- /dev/null
> +++ b/drivers/media/platform/rockchip/isp1/Makefile
> @@ -0,0 +1,8 @@
> +obj-$(CONFIG_VIDEO_ROCKCHIP_ISP1) += video_rkisp1.o
> +video_rkisp1-objs += rkisp1.o \
> + dev.o \
> + regs.o \
> + isp_stats.o \
> + isp_params.o \
> + mipi_dphy_sy.o \
> + capture.o
> diff --git a/drivers/media/platform/rockchip/isp1/common.h b/drivers/media/platform/rockchip/isp1/common.h
> new file mode 100644
> index 0000000..1adfb90
> --- /dev/null
> +++ b/drivers/media/platform/rockchip/isp1/common.h
> @@ -0,0 +1,137 @@
> +/*
> + * Rockchip isp1 driver
> + *
> + * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
> + *
> + * This software is available to you under a choice of one of two
> + * licenses. You may choose to be licensed under the terms of the GNU
> + * General Public License (GPL) Version 2, available from the file
> + * COPYING in the main directory of this source tree, or the
> + * OpenIB.org BSD license below:
> + *
> + * Redistribution and use in source and binary forms, with or
> + * without modification, are permitted provided that the following
> + * conditions are met:
> + *
> + * - Redistributions of source code must retain the above
> + * copyright notice, this list of conditions and the following
> + * disclaimer.
> + *
> + * - Redistributions in binary form must reproduce the above
> + * copyright notice, this list of conditions and the following
> + * disclaimer in the documentation and/or other materials
> + * provided with the distribution.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
> + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
> + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
> + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
> + * SOFTWARE.
> + */
> +
> +#ifndef _RKISP1_COMMON_H
> +#define _RKISP1_COMMON_H
> +
> +#include <linux/mutex.h>
> +#include <media/media-device.h>
> +#include <media/media-entity.h>
> +#include <media/v4l2-ctrls.h>
> +#include <media/v4l2-device.h>
> +#include <media/videobuf2-v4l2.h>
> +
> +#define RKISP1_DEFAULT_WIDTH 800
> +#define RKISP1_DEFAULT_HEIGHT 600
> +
> +#define RKISP1_MAX_STREAM 2
> +#define RKISP1_STREAM_SP 0
> +#define RKISP1_STREAM_MP 1
> +
> +#define RKISP1_PLANE_Y 0
> +#define RKISP1_PLANE_CB 1
> +#define RKISP1_PLANE_CR 2
> +
> +enum rkisp1_sd_type {
> + RKISP1_SD_SENSOR,
> + RKISP1_SD_PHY_CSI,
> + RKISP1_SD_VCM,
> + RKISP1_SD_FLASH,
> + RKISP1_SD_MAX,
> +};
> +
> +/* One structure per video node */
> +struct rkisp1_vdev_node {
> + struct vb2_queue buf_queue;
> + /* vfd lock */
> + struct mutex vlock;
> + struct video_device vdev;
> + struct media_pad pad;
> +};
> +
> +enum rkisp1_fmt_pix_type {
> + FMT_YUV,
> + FMT_RGB,
> + FMT_BAYER,
> + FMT_JPEG,
> + FMT_MAX
> +};
> +
> +enum rkisp1_fmt_raw_pat_type {
> + RAW_RGGB = 0,
> + RAW_GRBG,
> + RAW_GBRG,
> + RAW_BGGR,
> +};
> +
> +enum rkisp1_state {
> + /* path not yet opened: */
> + RKISP1_STATE_DISABLED,
> + /* path opened and configured, ready for streaming: */
> + RKISP1_STATE_READY,
> + /* path is streaming: */
> + RKISP1_STATE_STREAMING
> +};
> +
> +struct rkisp1_buffer {
> + struct vb2_v4l2_buffer vb;
> + struct list_head queue;
> + union {
> + u32 buff_addr[VIDEO_MAX_PLANES];
> + void *vaddr[VIDEO_MAX_PLANES];
> + };
> +};
> +
> +struct rkisp1_dummy_buffer {
> + void *vaddr;
> + dma_addr_t dma_addr;
> + u32 size;
> +};
> +
> +extern int rkisp1_debug;
> +
> +static inline
> +struct rkisp1_vdev_node *vdev_to_node(struct video_device *vdev)
> +{
> + return container_of(vdev, struct rkisp1_vdev_node, vdev);
> +}
> +
> +static inline struct rkisp1_vdev_node *queue_to_node(struct vb2_queue *q)
> +{
> + return container_of(q, struct rkisp1_vdev_node, buf_queue);
> +}
> +
> +static inline struct rkisp1_buffer *to_rkisp1_buffer(struct vb2_v4l2_buffer *vb)
> +{
> + return container_of(vb, struct rkisp1_buffer, vb);
> +}
> +
> +static inline struct vb2_queue *to_vb2_queue(struct file *file)
> +{
> + struct rkisp1_vdev_node *vnode = video_drvdata(file);
> +
> + return &vnode->buf_queue;
> +}
> +
> +#endif /* _RKISP1_COMMON_H */
> diff --git a/drivers/media/platform/rockchip/isp1/dev.c b/drivers/media/platform/rockchip/isp1/dev.c
> new file mode 100644
> index 0000000..248751c
> --- /dev/null
> +++ b/drivers/media/platform/rockchip/isp1/dev.c
> @@ -0,0 +1,653 @@
> +/*
> + * Rockchip isp1 driver
> + *
> + * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
> + *
> + * This software is available to you under a choice of one of two
> + * licenses. You may choose to be licensed under the terms of the GNU
> + * General Public License (GPL) Version 2, available from the file
> + * COPYING in the main directory of this source tree, or the
> + * OpenIB.org BSD license below:
> + *
> + * Redistribution and use in source and binary forms, with or
> + * without modification, are permitted provided that the following
> + * conditions are met:
> + *
> + * - Redistributions of source code must retain the above
> + * copyright notice, this list of conditions and the following
> + * disclaimer.
> + *
> + * - Redistributions in binary form must reproduce the above
> + * copyright notice, this list of conditions and the following
> + * disclaimer in the documentation and/or other materials
> + * provided with the distribution.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
> + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
> + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
> + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
> + * SOFTWARE.
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/interrupt.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/of_graph.h>
> +#include <linux/of_platform.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/pinctrl/consumer.h>
> +#include "common.h"
> +#include "regs.h"
> +
> +struct isp_match_data {
> + const char * const *clks;
> + int size;
> +};
> +
> +int rkisp1_debug;
> +module_param_named(debug, rkisp1_debug, int, 0644);
> +MODULE_PARM_DESC(debug, "Debug level (0-1)");
> +
> +/**************************** pipeline operations *****************************/
> +
> +static int __isp_pipeline_prepare(struct rkisp1_pipeline *p,
> + struct media_entity *me)
> +{
> + struct rkisp1_device *dev = container_of(p, struct rkisp1_device, pipe);
> + struct v4l2_subdev *sd;
> + int i;
> +
> + p->num_subdevs = 0;
> + memset(p->subdevs, 0, sizeof(p->subdevs));
> +
> + while (1) {
> + struct media_pad *pad = NULL;
> +
> + /* Find remote source pad */
> + for (i = 0; i < me->num_pads; i++) {
> + struct media_pad *spad = &me->pads[i];
> +
> + if (!(spad->flags & MEDIA_PAD_FL_SINK))
> + continue;
> + pad = media_entity_remote_pad(spad);
> + if (pad)
> + break;
> + }
> +
> + if (!pad)
> + break;
> +
> + sd = media_entity_to_v4l2_subdev(pad->entity);
> + if (sd != &dev->isp_sdev.sd)
> + p->subdevs[p->num_subdevs++] = sd;
> +
> + me = &sd->entity;
> + if (me->num_pads == 1)
> + break;
> + }
> + return 0;
> +}
> +
> +static int __subdev_set_power(struct v4l2_subdev *sd, int on)
> +{
> + int ret;
> +
> + if (!sd)
> + return -ENXIO;
> +
> + ret = v4l2_subdev_call(sd, core, s_power, on);
> +
> + return ret != -ENOIOCTLCMD ? ret : 0;
> +}
> +
> +static int __isp_pipeline_s_power(struct rkisp1_pipeline *p, bool on)
> +{
> + struct rkisp1_device *dev = container_of(p, struct rkisp1_device, pipe);
> + int i, ret;
> +
> + if (on) {
> + __subdev_set_power(&dev->isp_sdev.sd, true);
> +
> + for (i = p->num_subdevs - 1; i >= 0; --i) {
> + ret = __subdev_set_power(p->subdevs[i], true);
> + if (ret < 0 && ret != -ENXIO)
> + goto err_power_off;
> + }
> + } else {
> + for (i = 0; i < p->num_subdevs; ++i)
> + __subdev_set_power(p->subdevs[i], false);
> +
> + __subdev_set_power(&dev->isp_sdev.sd, false);
> + }
> +
> + return 0;
> +
> +err_power_off:
> + for (++i; i < p->num_subdevs; ++i)
> + __subdev_set_power(p->subdevs[i], false);
> + __subdev_set_power(&dev->isp_sdev.sd, true);
> + return ret;
> +}
> +
> +static int rkisp1_pipeline_open(struct rkisp1_pipeline *p,
> + struct media_entity *me,
> + bool prepare)
> +{
> + int ret;
> +
> + if (WARN_ON(!p || !me))
> + return -EINVAL;
> + if (atomic_inc_return(&p->power_cnt) > 1)
> + return 0;
> +
> + /* go through media graphic and get subdevs */
> + if (prepare)
> + __isp_pipeline_prepare(p, me);
> +
> + if (!p->num_subdevs)
> + return -EINVAL;
> +
> + ret = __isp_pipeline_s_power(p, 1);
> + if (ret < 0)
> + return ret;
> +
> + return 0;
> +}
> +
> +static int rkisp1_pipeline_close(struct rkisp1_pipeline *p)
> +{
> + int ret;
> +
> + if (atomic_dec_return(&p->power_cnt) > 0)
> + return 0;
> + ret = __isp_pipeline_s_power(p, 0);
> +
> + return ret == -ENXIO ? 0 : ret;
> +}
> +
> +/*
> + * stream-on order: isp_subdev, mipi dphy, sensor
> + * stream-off order: mipi dphy, sensor, isp_subdev
> + */
> +static int rkisp1_pipeline_set_stream(struct rkisp1_pipeline *p, bool on)
> +{
> + struct rkisp1_device *dev = container_of(p, struct rkisp1_device, pipe);
> + int i, ret;
> +
> + if ((on && atomic_inc_return(&p->stream_cnt) > 1) ||
> + (!on && atomic_dec_return(&p->stream_cnt) > 0))
> + return 0;
> +
> + if (on)
> + v4l2_subdev_call(&dev->isp_sdev.sd, video, s_stream, true);
> +
> + /* phy -> sensor */
> + for (i = 0; i < p->num_subdevs; ++i) {
> + ret = v4l2_subdev_call(p->subdevs[i], video, s_stream, on);
> + if (on && ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
> + goto err_stream_off;
> + }
> +
> + if (!on)
> + v4l2_subdev_call(&dev->isp_sdev.sd, video, s_stream, false);
> +
> + return 0;
> +
> +err_stream_off:
> + for (--i; i >= 0; --i)
> + v4l2_subdev_call(p->subdevs[i], video, s_stream, false);
> + v4l2_subdev_call(&dev->isp_sdev.sd, video, s_stream, false);
> + return ret;
> +}
> +
> +/***************************** media controller *******************************/
> +/* See http://opensource.rock-chips.com/wiki_Rockchip-isp1 for Topology */
> +
> +static int rkisp1_create_links(struct rkisp1_device *dev)
> +{
> + struct media_entity *source, *sink;
> + unsigned int flags, s, pad;
> + int ret;
> +
> + /* sensor links(or mipi-phy) */
> + for (s = 0; s < dev->num_sensors; ++s) {
> + struct rkisp1_sensor_info *sensor = &dev->sensors[s];
> +
> + 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(dev->dev,
> + "failed to find src pad for %s\n",
> + sensor->sd->name);
> +
> + return -ENXIO;
> + }
> +
> + ret = media_create_pad_link(
> + &sensor->sd->entity, pad,
> + &dev->isp_sdev.sd.entity,
> + RKISP1_ISP_PAD_SINK + s,
> + s ? 0 : MEDIA_LNK_FL_ENABLED);
> + if (ret) {
> + dev_err(dev->dev,
> + "failed to create link for %s\n",
> + sensor->sd->name);
> + return ret;
> + }
> + }
> +
> + /* params links */
> + source = &dev->params_vdev.vnode.vdev.entity;
> + sink = &dev->isp_sdev.sd.entity;
> + flags = MEDIA_LNK_FL_ENABLED;
> + ret = media_create_pad_link(source, 0, sink,
> + RKISP1_ISP_PAD_SINK_PARAMS, flags);
> + if (ret < 0)
> + return ret;
> +
> + /* create isp internal links */
> + /* SP links */
> + source = &dev->isp_sdev.sd.entity;
> + sink = &dev->stream[RKISP1_STREAM_SP].vnode.vdev.entity;
> + ret = media_create_pad_link(source, RKISP1_ISP_PAD_SOURCE_PATH,
> + sink, 0, flags);
> + if (ret < 0)
> + return ret;
> +
> + /* MP links */
> + source = &dev->isp_sdev.sd.entity;
> + sink = &dev->stream[RKISP1_STREAM_MP].vnode.vdev.entity;
> + ret = media_create_pad_link(source, RKISP1_ISP_PAD_SOURCE_PATH,
> + sink, 0, flags);
> + if (ret < 0)
> + return ret;
> +
> + /* 3A stats links */
> + source = &dev->isp_sdev.sd.entity;
> + sink = &dev->stats_vdev.vnode.vdev.entity;
> + return media_create_pad_link(source, RKISP1_ISP_PAD_SOURCE_STATS,
> + sink, 0, flags);
> +}
> +
> +static int subdev_notifier_complete(struct v4l2_async_notifier *notifier)
> +{
> + struct rkisp1_device *dev;
> + int ret;
> +
> + dev = container_of(notifier, struct rkisp1_device, notifier);
> +
> + mutex_lock(&dev->media_dev.graph_mutex);
> + ret = rkisp1_create_links(dev);
> + if (ret < 0)
> + goto unlock;
> + ret = v4l2_device_register_subdev_nodes(&dev->v4l2_dev);
> + if (ret < 0)
> + goto unlock;
> +
> + v4l2_info(&dev->v4l2_dev, "Async subdev notifier completed\n");
> +
> +unlock:
> + mutex_unlock(&dev->media_dev.graph_mutex);
> + return ret;
> +}
> +
> +struct rkisp1_async_subdev {
> + struct v4l2_async_subdev asd;
> + struct v4l2_mbus_config mbus;
> +};
> +
> +static int subdev_notifier_bound(struct v4l2_async_notifier *notifier,
> + struct v4l2_subdev *subdev,
> + struct v4l2_async_subdev *asd)
> +{
> + struct rkisp1_device *isp_dev = container_of(notifier,
> + struct rkisp1_device, notifier);
> + struct rkisp1_async_subdev *s_asd = container_of(asd,
> + struct rkisp1_async_subdev, asd);
> +
> + if (isp_dev->num_sensors == ARRAY_SIZE(isp_dev->sensors))
> + return -EBUSY;
> +
> + isp_dev->sensors[isp_dev->num_sensors].mbus = s_asd->mbus;
> + isp_dev->sensors[isp_dev->num_sensors].sd = subdev;
> + ++isp_dev->num_sensors;
> +
> + v4l2_dbg(1, rkisp1_debug, subdev, "Async registered subdev\n");
> +
> + return 0;
> +}
> +
> +static int rkisp1_fwnode_parse(struct device *dev,
> + struct v4l2_fwnode_endpoint *vep,
> + struct v4l2_async_subdev *asd)
> +{
> + struct rkisp1_async_subdev *rk_asd =
> + container_of(asd, struct rkisp1_async_subdev, asd);
> + struct v4l2_fwnode_bus_parallel *bus = &vep->bus.parallel;
> +
> + /*
> + * MIPI sensor is linked with a mipi dphy and its media bus config can
> + * not be get in here
> + */
> + if (vep->bus_type != V4L2_MBUS_BT656 &&
> + vep->bus_type != V4L2_MBUS_PARALLEL)
> + return 0;
> +
> + rk_asd->mbus.flags = bus->flags;
> + rk_asd->mbus.type = vep->bus_type;
> +
> + return 0;
> +}
> +
> +static const struct v4l2_async_notifier_operations subdev_notifier_ops = {
> + .bound = subdev_notifier_bound,
> + .complete = subdev_notifier_complete,
> +};
> +
> +static int isp_subdev_notifier(struct rkisp1_device *isp_dev)
> +{
> + struct v4l2_async_notifier *ntf = &isp_dev->notifier;
> + struct device *dev = isp_dev->dev;
> + int ret;
> +
> + ret = v4l2_async_notifier_parse_fwnode_endpoints(
> + dev, ntf, sizeof(struct rkisp1_async_subdev),
> + rkisp1_fwnode_parse);
> + if (ret < 0)
> + return ret;
> +
> + if (!ntf->num_subdevs)
> + return -ENODEV; /* no endpoint */
> +
> + ntf->ops = &subdev_notifier_ops;
> +
> + return v4l2_async_notifier_register(&isp_dev->v4l2_dev, ntf);
> +}
> +
> +/***************************** platform deive *******************************/
> +
> +static int rkisp1_register_platform_subdevs(struct rkisp1_device *dev)
> +{
> + int ret;
> +
> + ret = rkisp1_register_isp_subdev(dev, &dev->v4l2_dev);
> + if (ret < 0)
> + return ret;
> +
> + ret = rkisp1_register_stream_vdevs(dev);
> + if (ret < 0)
> + goto err_unreg_isp_subdev;
> +
> + ret = rkisp1_register_stats_vdev(&dev->stats_vdev, &dev->v4l2_dev, dev);
> + if (ret < 0)
> + goto err_unreg_stream_vdev;
> +
> + ret = rkisp1_register_params_vdev(&dev->params_vdev, &dev->v4l2_dev,
> + dev);
> + if (ret < 0)
> + goto err_unreg_stats_vdev;
> +
> + ret = isp_subdev_notifier(dev);
> + if (ret < 0) {
> + v4l2_err(&dev->v4l2_dev,
> + "Failed to register subdev notifier(%d)\n", ret);
> + goto err_unreg_params_vdev;
> + }
> +
> + return 0;
> +err_unreg_params_vdev:
> + rkisp1_unregister_params_vdev(&dev->params_vdev);
> +err_unreg_stats_vdev:
> + rkisp1_unregister_stats_vdev(&dev->stats_vdev);
> +err_unreg_stream_vdev:
> + rkisp1_unregister_stream_vdevs(dev);
> +err_unreg_isp_subdev:
> + rkisp1_unregister_isp_subdev(dev);
> + return ret;
> +}
> +
> +static const char * const rk3399_isp_clks[] = {
> + "clk_isp",
> + "aclk_isp",
> + "hclk_isp",
> + "aclk_isp_wrap",
> + "hclk_isp_wrap",
> +};
> +
> +static const char * const rk3288_isp_clks[] = {
> + "clk_isp",
> + "aclk_isp",
> + "hclk_isp",
> + "pclk_isp_in",
> + "sclk_isp_jpe",
> +};
> +
> +static const struct isp_match_data rk3288_isp_clk_data = {
> + .clks = rk3288_isp_clks,
> + .size = ARRAY_SIZE(rk3288_isp_clks),
> +};
> +
> +static const struct isp_match_data rk3399_isp_clk_data = {
> + .clks = rk3399_isp_clks,
> + .size = ARRAY_SIZE(rk3399_isp_clks),
> +};
> +
> +static const struct of_device_id rkisp1_plat_of_match[] = {
> + {
> + .compatible = "rockchip,rk3288-cif-isp",
> + .data = &rk3288_isp_clk_data,
> + }, {
> + .compatible = "rockchip,rk3399-cif-isp",
> + .data = &rk3399_isp_clk_data,
> + },
> + {},
> +};
> +
> +static irqreturn_t rkisp1_irq_handler(int irq, void *ctx)
> +{
> + struct device *dev = ctx;
> + struct rkisp1_device *rkisp1_dev = dev_get_drvdata(dev);
> + void __iomem *base = rkisp1_dev->base_addr;
> + unsigned int mis_val, i;
> +
> + mis_val = readl(rkisp1_dev->base_addr + CIF_ISP_MIS);
> + if (mis_val)
> + rkisp1_isp_isr(mis_val, rkisp1_dev);
> +
> + mis_val = readl(rkisp1_dev->base_addr + CIF_MIPI_MIS);
> + if (mis_val)
> + rkisp1_mipi_isr(mis_val, rkisp1_dev);
> +
> + for (i = 0; i < RKISP1_MAX_STREAM; ++i) {
> + struct rkisp1_stream *stream = &rkisp1_dev->stream[i];
> +
> + if (stream->ops->is_frame_end_int_masked(base))
> + rkisp1_mi_isr(stream);
> + }
> +
> + return IRQ_HANDLED;
> +}
> +
> +static void rkisp1_disable_sys_clk(struct rkisp1_device *rkisp1_dev)
> +{
> + int i;
> +
> + for (i = rkisp1_dev->clk_size - 1; i >= 0; i--)
> + clk_disable_unprepare(rkisp1_dev->clks[i]);
> +}
> +
> +static int rkisp1_enable_sys_clk(struct rkisp1_device *rkisp1_dev)
> +{
> + int i, ret = -EINVAL;
> +
> + for (i = 0; i < rkisp1_dev->clk_size; i++) {
> + ret = clk_prepare_enable(rkisp1_dev->clks[i]);
> + if (ret < 0)
> + goto err;
> + }
> + return 0;
> +err:
> + for (--i; i >= 0; --i)
> + clk_disable_unprepare(rkisp1_dev->clks[i]);
> + return ret;
> +}
> +
> +static int rkisp1_plat_probe(struct platform_device *pdev)
> +{
> + const struct of_device_id *match;
> + struct device_node *node = pdev->dev.of_node;
> + struct device *dev = &pdev->dev;
> + struct v4l2_device *v4l2_dev;
> + struct rkisp1_device *isp_dev;
> + const struct isp_match_data *clk_data;
> +
> + struct resource *res;
> + int i, ret, irq;
> +
> + match = of_match_node(rkisp1_plat_of_match, node);
> + isp_dev = devm_kzalloc(dev, sizeof(*isp_dev), GFP_KERNEL);
> + if (!isp_dev)
> + return -ENOMEM;
> +
> + dev_set_drvdata(dev, isp_dev);
> + isp_dev->dev = dev;
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + isp_dev->base_addr = devm_ioremap_resource(dev, res);
> + if (IS_ERR(isp_dev->base_addr))
> + return PTR_ERR(isp_dev->base_addr);
> +
> + irq = platform_get_irq(pdev, 0);
> + if (irq < 0)
> + return irq;
> +
> + ret = devm_request_irq(dev, irq, rkisp1_irq_handler, IRQF_SHARED,
> + dev_driver_string(dev), dev);
> + if (ret < 0) {
> + dev_err(dev, "request irq failed: %d\n", ret);
> + return ret;
> + }
> +
> + isp_dev->irq = irq;
> + clk_data = match->data;
> + for (i = 0; i < clk_data->size; i++) {
> + struct clk *clk = devm_clk_get(dev, clk_data->clks[i]);
> +
> + if (IS_ERR(clk)) {
> + dev_err(dev, "failed to get %s\n", clk_data->clks[i]);
> + return PTR_ERR(clk);
> + }
> + isp_dev->clks[i] = clk;
> + }
> + isp_dev->clk_size = clk_data->size;
> +
> + atomic_set(&isp_dev->pipe.power_cnt, 0);
> + atomic_set(&isp_dev->pipe.stream_cnt, 0);
> + isp_dev->pipe.open = rkisp1_pipeline_open;
> + isp_dev->pipe.close = rkisp1_pipeline_close;
> + isp_dev->pipe.set_stream = rkisp1_pipeline_set_stream;
> +
> + rkisp1_stream_init(isp_dev, RKISP1_STREAM_SP);
> + rkisp1_stream_init(isp_dev, RKISP1_STREAM_MP);
> +
> + strlcpy(isp_dev->media_dev.model, "rkisp1",
> + sizeof(isp_dev->media_dev.model));
> + isp_dev->media_dev.dev = &pdev->dev;
> + media_device_init(&isp_dev->media_dev);
> +
> + v4l2_dev = &isp_dev->v4l2_dev;
> + v4l2_dev->mdev = &isp_dev->media_dev;
> + strlcpy(v4l2_dev->name, "rkisp1", sizeof(v4l2_dev->name));
> + v4l2_ctrl_handler_init(&isp_dev->ctrl_handler, 5);
> + v4l2_dev->ctrl_handler = &isp_dev->ctrl_handler;
> +
> + ret = v4l2_device_register(isp_dev->dev, &isp_dev->v4l2_dev);
> + if (ret < 0)
> + return ret;
> +
> + ret = media_device_register(&isp_dev->media_dev);
> + if (ret < 0) {
> + v4l2_err(v4l2_dev, "Failed to register media device: %d\n",
> + ret);
> + goto err_unreg_v4l2_dev;
> + }
> +
> + /* create & register platefom subdev (from of_node) */
> + ret = rkisp1_register_platform_subdevs(isp_dev);
> + if (ret < 0)
> + goto err_unreg_media_dev;
> +
> + pm_runtime_enable(&pdev->dev);
> +
> + return 0;
> +
> +err_unreg_media_dev:
> + media_device_unregister(&isp_dev->media_dev);
> +err_unreg_v4l2_dev:
> + v4l2_device_unregister(&isp_dev->v4l2_dev);
> + return ret;
> +}
> +
> +static int rkisp1_plat_remove(struct platform_device *pdev)
> +{
> + struct rkisp1_device *isp_dev = platform_get_drvdata(pdev);
> +
> + pm_runtime_disable(&pdev->dev);
> + media_device_unregister(&isp_dev->media_dev);
> + v4l2_device_unregister(&isp_dev->v4l2_dev);
> + rkisp1_unregister_params_vdev(&isp_dev->params_vdev);
> + rkisp1_unregister_stats_vdev(&isp_dev->stats_vdev);
> + rkisp1_unregister_stream_vdevs(isp_dev);
> + rkisp1_unregister_isp_subdev(isp_dev);
> +
> + return 0;
> +}
> +
> +static int __maybe_unused rkisp1_runtime_suspend(struct device *dev)
> +{
> + struct rkisp1_device *isp_dev = dev_get_drvdata(dev);
> +
> + rkisp1_disable_sys_clk(isp_dev);
> + return pinctrl_pm_select_sleep_state(dev);
> +}
> +
> +static int __maybe_unused rkisp1_runtime_resume(struct device *dev)
> +{
> + struct rkisp1_device *isp_dev = dev_get_drvdata(dev);
> + int ret;
> +
> + ret = pinctrl_pm_select_default_state(dev);
> + if (ret < 0)
> + return ret;
> + rkisp1_enable_sys_clk(isp_dev);
> +
> + return 0;
> +}
> +
> +static const struct dev_pm_ops rkisp1_plat_pm_ops = {
> + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
> + pm_runtime_force_resume)
> + SET_RUNTIME_PM_OPS(rkisp1_runtime_suspend, rkisp1_runtime_resume, NULL)
> +};
> +
> +static struct platform_driver rkisp1_plat_drv = {
> + .driver = {
> + .name = DRIVER_NAME,
> + .of_match_table = of_match_ptr(rkisp1_plat_of_match),
> + .pm = &rkisp1_plat_pm_ops,
> + },
> + .probe = rkisp1_plat_probe,
> + .remove = rkisp1_plat_remove,
> +};
> +
> +module_platform_driver(rkisp1_plat_drv);
> +MODULE_AUTHOR("Rockchip Camera/ISP team");
> +MODULE_DESCRIPTION("Rockchip ISP1 platform driver");
> +MODULE_LICENSE("Dual BSD/GPL");
> diff --git a/drivers/media/platform/rockchip/isp1/dev.h b/drivers/media/platform/rockchip/isp1/dev.h
> new file mode 100644
> index 0000000..f28cde3
> --- /dev/null
> +++ b/drivers/media/platform/rockchip/isp1/dev.h
> @@ -0,0 +1,120 @@
> +/*
> + * Rockchip isp1 driver
> + *
> + * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
> + *
> + * This software is available to you under a choice of one of two
> + * licenses. You may choose to be licensed under the terms of the GNU
> + * General Public License (GPL) Version 2, available from the file
> + * COPYING in the main directory of this source tree, or the
> + * OpenIB.org BSD license below:
> + *
> + * Redistribution and use in source and binary forms, with or
> + * without modification, are permitted provided that the following
> + * conditions are met:
> + *
> + * - Redistributions of source code must retain the above
> + * copyright notice, this list of conditions and the following
> + * disclaimer.
> + *
> + * - Redistributions in binary form must reproduce the above
> + * copyright notice, this list of conditions and the following
> + * disclaimer in the documentation and/or other materials
> + * provided with the distribution.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
> + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
> + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
> + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
> + * SOFTWARE.
> + */
> +
> +#ifndef _RKISP1_DEV_H
> +#define _RKISP1_DEV_H
> +
> +#include "capture.h"
> +#include "rkisp1.h"
> +#include "isp_params.h"
> +#include "isp_stats.h"
> +
> +#define DRIVER_NAME "rkisp1"
> +#define ISP_VDEV_NAME DRIVER_NAME "_ispdev"
> +#define SP_VDEV_NAME DRIVER_NAME "_selfpath"
> +#define MP_VDEV_NAME DRIVER_NAME "_mainpath"
> +#define DMA_VDEV_NAME DRIVER_NAME "_dmapath"
> +
> +#define GRP_ID_SENSOR BIT(0)
> +#define GRP_ID_MIPIPHY BIT(1)
> +#define GRP_ID_ISP BIT(2)
> +#define GRP_ID_ISP_MP BIT(3)
> +#define GRP_ID_ISP_SP BIT(4)
> +
> +#define RKISP1_MAX_BUS_CLK 8
> +#define RKISP1_MAX_SENSOR 2
> +#define RKISP1_MAX_PIPELINE 4
> +
> +/*
> + * struct rkisp1_pipeline - An ISP hardware pipeline
> + *
> + * Capture device call other devices via pipeline
> + *
> + * @num_subdevs: number of linked subdevs
> + * @power_cnt: pipeline power count
> + * @stream_cnt: stream power count
> + */
> +struct rkisp1_pipeline {
> + struct media_pipeline pipe;
> + int num_subdevs;
> + atomic_t power_cnt;
> + atomic_t stream_cnt;
> + struct v4l2_subdev *subdevs[RKISP1_MAX_PIPELINE];
> + int (*open)(struct rkisp1_pipeline *p,
> + struct media_entity *me, bool prepare);
> + int (*close)(struct rkisp1_pipeline *p);
> + int (*set_stream)(struct rkisp1_pipeline *p, bool on);
> +};
> +
> +/*
> + * struct rkisp1_sensor_info - Sensor infomations

infomations -> information

> + * @mbus: media bus configuration
> + */
> +struct rkisp1_sensor_info {
> + struct v4l2_subdev *sd;
> + struct v4l2_mbus_config mbus;

As mentioned before, this is dubious. I'll discuss this with Thomas on
irc tomorrow.

> +};
> +
> +/*
> + * struct rkisp1_device - ISP platform device
> + * @base_addr: base register address
> + * @active_sensor: sensor in-use, set when streaming on
> + * @isp_sdev: ISP sub-device
> + * @rkisp1_stream: capture video device
> + * @stats_vdev: ISP statistics output device
> + * @params_vdev: ISP input parameters device
> + */
> +struct rkisp1_device {
> + void __iomem *base_addr;
> + int irq;
> + struct device *dev;
> + struct clk *clks[RKISP1_MAX_BUS_CLK];
> + int clk_size;
> + struct v4l2_device v4l2_dev;
> + struct v4l2_ctrl_handler ctrl_handler;
> + struct media_device media_dev;
> + struct v4l2_async_notifier notifier;
> + struct v4l2_subdev *subdevs[RKISP1_SD_MAX];
> + struct rkisp1_sensor_info *active_sensor;
> + struct rkisp1_sensor_info sensors[RKISP1_MAX_SENSOR];
> + int num_sensors;
> + struct rkisp1_isp_subdev isp_sdev;
> + struct rkisp1_stream stream[RKISP1_MAX_STREAM];
> + struct rkisp1_isp_stats_vdev stats_vdev;
> + struct rkisp1_isp_params_vdev params_vdev;
> + struct rkisp1_pipeline pipe;
> + struct vb2_alloc_ctx *alloc_ctx;
> +};
> +
> +#endif
>

Regards,

Hans

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