@@ -3,3 +3,4 @@
source "drivers/media/platform/sunxi/sun4i-csi/Kconfig"
source "drivers/media/platform/sunxi/sun6i-csi/Kconfig"
source "drivers/media/platform/sunxi/sun6i-mipi-csi2/Kconfig"
+source "drivers/media/platform/sunxi/sun8i-a83t-mipi-csi2/Kconfig"
@@ -3,5 +3,6 @@
obj-y += sun4i-csi/
obj-y += sun6i-csi/
obj-y += sun6i-mipi-csi2/
+obj-y += sun8i-a83t-mipi-csi2/
obj-y += sun8i-di/
obj-y += sun8i-rotate/
new file mode 100644
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_SUN8I_A83T_MIPI_CSI2
+ tristate "Allwinner A83T MIPI CSI-2 Controller and D-PHY Driver"
+ depends on ARCH_SUNXI || COMPILE_TEST
+ depends on PM && COMMON_CLK && VIDEO_V4L2
+ select REGMAP_MMIO
+ select MEDIA_CONTROLLER
+ select VIDEO_V4L2_SUBDEV_API
+ select V4L2_FWNODE
+ help
+ Support for the Allwinner A83T MIPI CSI-2 Controller and D-PHY.
new file mode 100644
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+sun8i-a83t-mipi-csi2-y += sun8i_a83t_mipi_csi2.o sun8i_a83t_dphy.o
+
+obj-$(CONFIG_VIDEO_SUN8I_A83T_MIPI_CSI2) += sun8i-a83t-mipi-csi2.o
new file mode 100644
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2020 Bootlin
+ * Author: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
+ */
+
+#include <linux/phy/phy.h>
+#include <linux/regmap.h>
+
+#include "sun8i_a83t_dphy.h"
+#include "sun8i_a83t_mipi_csi2.h"
+
+static int sun8i_a83t_dphy_set_mode(struct phy *dphy, enum phy_mode mode,
+ int submode)
+{
+ if (mode != PHY_MODE_MIPI_DPHY ||
+ submode != PHY_MIPI_DPHY_SUBMODE_RX)
+ return -EINVAL;
+
+ return 0;
+};
+
+static int sun8i_a83t_dphy_configure(struct phy *dphy,
+ union phy_configure_opts *opts)
+{
+ struct sun8i_a83t_mipi_csi2_dev *cdev = phy_get_drvdata(dphy);
+ int ret;
+
+ ret = phy_mipi_dphy_config_validate(&opts->mipi_dphy);
+ if (ret)
+ return ret;
+
+ memcpy(&cdev->dphy_config, opts, sizeof(cdev->dphy_config));
+
+ return 0;
+};
+
+static int sun8i_a83t_dphy_power_on(struct phy *dphy)
+{
+ struct sun8i_a83t_mipi_csi2_dev *cdev = phy_get_drvdata(dphy);
+ struct regmap *regmap = cdev->regmap;
+
+ regmap_write(regmap, SUN8I_A83T_DPHY_CTRL_REG,
+ SUN8I_A83T_DPHY_CTRL_RESET_N |
+ SUN8I_A83T_DPHY_CTRL_SHUTDOWN_N);
+
+ regmap_write(regmap, SUN8I_A83T_DPHY_ANA0_REG,
+ SUN8I_A83T_DPHY_ANA0_REXT_EN |
+ SUN8I_A83T_DPHY_ANA0_RINT(2) |
+ SUN8I_A83T_DPHY_ANA0_SNK(2));
+
+ return 0;
+};
+
+static int sun8i_a83t_dphy_power_off(struct phy *dphy)
+{
+ struct sun8i_a83t_mipi_csi2_dev *cdev = phy_get_drvdata(dphy);
+ struct regmap *regmap = cdev->regmap;
+
+ regmap_write(regmap, SUN8I_A83T_DPHY_CTRL_REG, 0);
+
+ return 0;
+};
+
+static const struct phy_ops sun8i_a83t_dphy_ops = {
+ .set_mode = sun8i_a83t_dphy_set_mode,
+ .configure = sun8i_a83t_dphy_configure,
+ .power_on = sun8i_a83t_dphy_power_on,
+ .power_off = sun8i_a83t_dphy_power_off,
+};
+
+int sun8i_a83t_dphy_register(struct sun8i_a83t_mipi_csi2_dev *cdev)
+{
+ struct phy_provider *phy_provider;
+
+ cdev->dphy = devm_phy_create(cdev->dev, NULL, &sun8i_a83t_dphy_ops);
+ if (IS_ERR(cdev->dphy)) {
+ dev_err(cdev->dev, "failed to create D-PHY\n");
+ return PTR_ERR(cdev->dphy);
+ }
+
+ phy_set_drvdata(cdev->dphy, cdev);
+
+ phy_provider = devm_of_phy_provider_register(cdev->dev,
+ of_phy_simple_xlate);
+ if (IS_ERR(phy_provider)) {
+ dev_err(cdev->dev, "failed to register D-PHY provider\n");
+ return PTR_ERR(phy_provider);
+ }
+
+ return 0;
+}
new file mode 100644
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2020 Kévin L'hôpital <kevin.lhopital@bootlin.com>
+ * Copyright 2020 Bootlin
+ * Author: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
+ */
+
+#ifndef __SUN8I_A83T_DPHY_H__
+#define __SUN8I_A83T_DPHY_H__
+
+#include "sun8i_a83t_mipi_csi2.h"
+
+#define SUN8I_A83T_DPHY_CTRL_REG 0x10
+#define SUN8I_A83T_DPHY_CTRL_INIT_VALUE 0xb8df698e
+#define SUN8I_A83T_DPHY_CTRL_RESET_N BIT(31)
+#define SUN8I_A83T_DPHY_CTRL_SHUTDOWN_N BIT(15)
+#define SUN8I_A83T_DPHY_CTRL_DEBUG BIT(8)
+#define SUN8I_A83T_DPHY_STATUS_REG 0x14
+#define SUN8I_A83T_DPHY_STATUS_CLK_STOP BIT(10)
+#define SUN8I_A83T_DPHY_STATUS_CLK_ULPS BIT(9)
+#define SUN8I_A83T_DPHY_STATUS_HSCLK BIT(8)
+#define SUN8I_A83T_DPHY_STATUS_D3_STOP BIT(7)
+#define SUN8I_A83T_DPHY_STATUS_D2_STOP BIT(6)
+#define SUN8I_A83T_DPHY_STATUS_D1_STOP BIT(5)
+#define SUN8I_A83T_DPHY_STATUS_D0_STOP BIT(4)
+#define SUN8I_A83T_DPHY_STATUS_D3_ULPS BIT(3)
+#define SUN8I_A83T_DPHY_STATUS_D2_ULPS BIT(2)
+#define SUN8I_A83T_DPHY_STATUS_D1_ULPS BIT(1)
+#define SUN8I_A83T_DPHY_STATUS_D0_ULPS BIT(0)
+
+#define SUN8I_A83T_DPHY_ANA0_REG 0x30
+#define SUN8I_A83T_DPHY_ANA0_REXT_EN BIT(31)
+#define SUN8I_A83T_DPHY_ANA0_REXT BIT(30)
+#define SUN8I_A83T_DPHY_ANA0_RINT(v) (((v) << 28) & GENMASK(29, 28))
+#define SUN8I_A83T_DPHY_ANA0_SNK(v) (((v) << 20) & GENMASK(22, 20))
+
+int sun8i_a83t_dphy_register(struct sun8i_a83t_mipi_csi2_dev *cdev);
+
+#endif /* __SUN8I_A83T_DPHY_H__ */
new file mode 100644
@@ -0,0 +1,666 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2020 Kévin L'hôpital <kevin.lhopital@bootlin.com>
+ * Copyright 2020 Bootlin
+ * Author: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+
+#include "sun8i_a83t_dphy.h"
+#include "sun8i_a83t_mipi_csi2.h"
+
+#define MODULE_NAME "sun8i-a83t-mipi-csi2"
+
+static const u32 sun8i_a83t_mipi_csi2_mbus_codes[] = {
+ MEDIA_BUS_FMT_SBGGR8_1X8,
+ MEDIA_BUS_FMT_SGBRG8_1X8,
+ MEDIA_BUS_FMT_SGRBG8_1X8,
+ MEDIA_BUS_FMT_SRGGB8_1X8,
+ MEDIA_BUS_FMT_SBGGR10_1X10,
+ MEDIA_BUS_FMT_SGBRG10_1X10,
+ MEDIA_BUS_FMT_SGRBG10_1X10,
+ MEDIA_BUS_FMT_SRGGB10_1X10,
+};
+
+/* Core */
+
+static void sun8i_a83t_mipi_csi2_init(struct sun8i_a83t_mipi_csi2_dev *cdev)
+{
+ struct regmap *regmap = cdev->regmap;
+
+ /*
+ * The Allwinner BSP sets various magic values on a bunch of registers.
+ * This is apparently a necessary initialization process that will cause
+ * the capture to fail with unsolicited interrupts hitting if skipped.
+ *
+ * Most of the registers are set to proper values later, except for the
+ * two reserved registers. They are said to hold a "hardware lock"
+ * value, without more information available.
+ */
+
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_CTRL_REG, 0);
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_CTRL_REG,
+ SUN8I_A83T_MIPI_CSI2_CTRL_INIT_VALUE);
+
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_RX_PKT_NUM_REG, 0);
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_RX_PKT_NUM_REG,
+ SUN8I_A83T_MIPI_CSI2_RX_PKT_NUM_INIT_VALUE);
+
+ regmap_write(regmap, SUN8I_A83T_DPHY_CTRL_REG, 0);
+ regmap_write(regmap, SUN8I_A83T_DPHY_CTRL_REG,
+ SUN8I_A83T_DPHY_CTRL_INIT_VALUE);
+
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_RSVD1_REG, 0);
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_RSVD1_REG,
+ SUN8I_A83T_MIPI_CSI2_RSVD1_HW_LOCK_VALUE);
+
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_RSVD2_REG, 0);
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_RSVD2_REG,
+ SUN8I_A83T_MIPI_CSI2_RSVD2_HW_LOCK_VALUE);
+
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_CFG_REG, 0);
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_CFG_REG,
+ SUN8I_A83T_MIPI_CSI2_CFG_INIT_VALUE);
+}
+
+/* Video */
+
+static int sun8i_a83t_mipi_csi2_s_stream(struct v4l2_subdev *subdev, int on)
+{
+ struct sun8i_a83t_mipi_csi2_video *video =
+ sun8i_a83t_mipi_csi2_subdev_video(subdev);
+ struct sun8i_a83t_mipi_csi2_dev *cdev =
+ sun8i_a83t_mipi_csi2_video_dev(video);
+ struct v4l2_subdev *remote_subdev = video->remote_subdev;
+ struct v4l2_fwnode_bus_mipi_csi2 *bus_mipi_csi2 =
+ &video->endpoint.bus.mipi_csi2;
+ union phy_configure_opts dphy_opts = { 0 };
+ struct phy_configure_opts_mipi_dphy *dphy_cfg = &dphy_opts.mipi_dphy;
+ struct regmap *regmap = cdev->regmap;
+ struct v4l2_ctrl *ctrl;
+ unsigned int lanes_count;
+ unsigned int bpp;
+ unsigned long pixel_rate;
+ u8 data_type = 0;
+ u32 version = 0;
+ /* Initialize to 0 to use both in disable label (ret != 0) and off. */
+ int ret = 0;
+
+ if (!remote_subdev)
+ return -ENODEV;
+
+ if (!on) {
+ v4l2_subdev_call(remote_subdev, video, s_stream, 0);
+ goto disable;
+ }
+
+ switch (video->mbus_format.code) {
+ case MEDIA_BUS_FMT_SBGGR8_1X8:
+ case MEDIA_BUS_FMT_SGBRG8_1X8:
+ case MEDIA_BUS_FMT_SGRBG8_1X8:
+ case MEDIA_BUS_FMT_SRGGB8_1X8:
+ data_type = MIPI_CSI2_DATA_TYPE_RAW8;
+ bpp = 8;
+ break;
+ case MEDIA_BUS_FMT_SBGGR10_1X10:
+ case MEDIA_BUS_FMT_SGBRG10_1X10:
+ case MEDIA_BUS_FMT_SGRBG10_1X10:
+ case MEDIA_BUS_FMT_SRGGB10_1X10:
+ data_type = MIPI_CSI2_DATA_TYPE_RAW10;
+ bpp = 10;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Sensor pixel rate */
+
+ ctrl = v4l2_ctrl_find(remote_subdev->ctrl_handler, V4L2_CID_PIXEL_RATE);
+ if (!ctrl) {
+ dev_err(cdev->dev,
+ "%s: no MIPI CSI-2 pixel rate from the sensor\n",
+ __func__);
+ return -ENODEV;
+ }
+
+ pixel_rate = (unsigned long)v4l2_ctrl_g_ctrl_int64(ctrl);
+ if (!pixel_rate) {
+ dev_err(cdev->dev,
+ "%s: zero MIPI CSI-2 pixel rate from the sensor\n",
+ __func__);
+ return -ENODEV;
+ }
+
+ /* Power management */
+
+ ret = pm_runtime_get_sync(cdev->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(cdev->dev);
+ return ret;
+ }
+
+ /* D-PHY configuration */
+
+ lanes_count = bus_mipi_csi2->num_data_lanes;
+ phy_mipi_dphy_get_default_config(pixel_rate, bpp, lanes_count,
+ dphy_cfg);
+
+ /*
+ * Note that our hardware is using DDR, which is not taken in account by
+ * phy_mipi_dphy_get_default_config when calculating hs_clk_rate from
+ * the pixel rate, lanes count and bpp.
+ *
+ * The resulting clock rate is basically the symbol rate over the whole
+ * link. The actual clock rate is calculated with division by two since
+ * DDR samples both on rising and falling edges.
+ */
+
+ dev_dbg(cdev->dev, "A83T MIPI CSI-2 config:\n");
+ dev_dbg(cdev->dev,
+ "%ld pixels/s, %u bits/pixel, %u lanes, %lu Hz clock\n",
+ pixel_rate, bpp, lanes_count, dphy_cfg->hs_clk_rate / 2);
+
+ ret = phy_reset(cdev->dphy);
+ if (ret) {
+ dev_err(cdev->dev, "failed to reset MIPI D-PHY\n");
+ goto error_pm;
+ }
+
+ ret = phy_set_mode_ext(cdev->dphy, PHY_MODE_MIPI_DPHY,
+ PHY_MIPI_DPHY_SUBMODE_RX);
+ if (ret) {
+ dev_err(cdev->dev, "failed to set MIPI D-PHY mode\n");
+ goto error_pm;
+ }
+
+ ret = phy_configure(cdev->dphy, &dphy_opts);
+ if (ret) {
+ dev_err(cdev->dev, "failed to configure MIPI D-PHY\n");
+ goto error_pm;
+ }
+
+ ret = phy_power_on(cdev->dphy);
+ if (ret) {
+ dev_err(cdev->dev, "failed to power on MIPI D-PHY\n");
+ goto error_pm;
+ }
+
+ /* MIPI CSI-2 controller setup */
+
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_CTRL_REG,
+ SUN8I_A83T_MIPI_CSI2_CTRL_RESET_N);
+
+ regmap_read(regmap, SUN8I_A83T_MIPI_CSI2_VERSION_REG, &version);
+
+ dev_dbg(cdev->dev, "A83T MIPI CSI-2 version: %04x\n", version);
+
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_CFG_REG,
+ SUN8I_A83T_MIPI_CSI2_CFG_UNPKT_EN |
+ SUN8I_A83T_MIPI_CSI2_CFG_SYNC_DLY_CYCLE(8) |
+ SUN8I_A83T_MIPI_CSI2_CFG_N_CHANNEL(1) |
+ SUN8I_A83T_MIPI_CSI2_CFG_N_LANE(lanes_count));
+
+ /*
+ * Our MIPI CSI-2 controller has internal channels that can be
+ * configured to match a specific MIPI CSI-2 virtual channel and/or
+ * a specific data type. Each internal channel can be piped to an
+ * internal channel of the CSI controller.
+ *
+ * We set virtual channel numbers to all channels to make sure that
+ * virtual channel 0 goes to CSI channel 0 only.
+ */
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_VCDT0_REG,
+ SUN8I_A83T_MIPI_CSI2_VCDT0_CH_VC(3, 3) |
+ SUN8I_A83T_MIPI_CSI2_VCDT0_CH_VC(2, 2) |
+ SUN8I_A83T_MIPI_CSI2_VCDT0_CH_VC(1, 1) |
+ SUN8I_A83T_MIPI_CSI2_VCDT0_CH_VC(0, 0) |
+ SUN8I_A83T_MIPI_CSI2_VCDT0_CH_DT(0, data_type));
+
+ /* Start streaming. */
+ regmap_update_bits(regmap, SUN8I_A83T_MIPI_CSI2_CFG_REG,
+ SUN8I_A83T_MIPI_CSI2_CFG_SYNC_EN,
+ SUN8I_A83T_MIPI_CSI2_CFG_SYNC_EN);
+
+ ret = v4l2_subdev_call(remote_subdev, video, s_stream, 1);
+ if (ret)
+ goto disable;
+
+ return 0;
+
+disable:
+ regmap_update_bits(regmap, SUN8I_A83T_MIPI_CSI2_CFG_REG,
+ SUN8I_A83T_MIPI_CSI2_CFG_SYNC_EN, 0);
+
+ regmap_write(regmap, SUN8I_A83T_MIPI_CSI2_CTRL_REG, 0);
+
+ phy_power_off(cdev->dphy);
+
+error_pm:
+ pm_runtime_put(cdev->dev);
+
+ return ret;
+}
+
+static const
+struct v4l2_subdev_video_ops sun8i_a83t_mipi_csi2_subdev_video_ops = {
+ .s_stream = sun8i_a83t_mipi_csi2_s_stream,
+};
+
+/* Pad */
+
+static int
+sun8i_a83t_mipi_csi2_enum_mbus_code(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *config,
+ struct v4l2_subdev_mbus_code_enum *code_enum)
+{
+ if (code_enum->index >= ARRAY_SIZE(sun8i_a83t_mipi_csi2_mbus_codes))
+ return -EINVAL;
+
+ code_enum->code = sun8i_a83t_mipi_csi2_mbus_codes[code_enum->index];
+
+ return 0;
+}
+
+static int sun8i_a83t_mipi_csi2_get_fmt(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *config,
+ struct v4l2_subdev_format *format)
+{
+ struct sun8i_a83t_mipi_csi2_video *video =
+ sun8i_a83t_mipi_csi2_subdev_video(subdev);
+ struct v4l2_mbus_framefmt *mbus_format = &format->format;
+
+ if (format->which == V4L2_SUBDEV_FORMAT_TRY)
+ *mbus_format = *v4l2_subdev_get_try_format(subdev, config,
+ format->pad);
+ else
+ *mbus_format = video->mbus_format;
+
+ return 0;
+}
+
+static int sun8i_a83t_mipi_csi2_set_fmt(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *config,
+ struct v4l2_subdev_format *format)
+{
+ struct sun8i_a83t_mipi_csi2_video *video =
+ sun8i_a83t_mipi_csi2_subdev_video(subdev);
+ struct v4l2_mbus_framefmt *mbus_format = &format->format;
+
+ if (format->which == V4L2_SUBDEV_FORMAT_TRY)
+ *v4l2_subdev_get_try_format(subdev, config, format->pad) =
+ *mbus_format;
+ else
+ video->mbus_format = *mbus_format;
+
+ return 0;
+}
+
+static const struct v4l2_subdev_pad_ops sun8i_a83t_mipi_csi2_subdev_pad_ops = {
+ .enum_mbus_code = sun8i_a83t_mipi_csi2_enum_mbus_code,
+ .get_fmt = sun8i_a83t_mipi_csi2_get_fmt,
+ .set_fmt = sun8i_a83t_mipi_csi2_set_fmt,
+};
+
+/* Subdev */
+
+static const struct v4l2_subdev_ops sun8i_a83t_mipi_csi2_subdev_ops = {
+ .video = &sun8i_a83t_mipi_csi2_subdev_video_ops,
+ .pad = &sun8i_a83t_mipi_csi2_subdev_pad_ops,
+};
+
+/* Notifier */
+
+static int
+sun8i_a83t_mipi_csi2_notifier_bound(struct v4l2_async_notifier *notifier,
+ struct v4l2_subdev *remote_subdev,
+ struct v4l2_async_subdev *remote_subdev_async)
+{
+ struct v4l2_subdev *subdev = notifier->sd;
+ struct sun8i_a83t_mipi_csi2_video *video =
+ sun8i_a83t_mipi_csi2_subdev_video(subdev);
+ struct sun8i_a83t_mipi_csi2_dev *cdev =
+ sun8i_a83t_mipi_csi2_video_dev(video);
+ int source_pad;
+ int ret;
+
+ source_pad = media_entity_get_fwnode_pad(&remote_subdev->entity,
+ remote_subdev->fwnode,
+ MEDIA_PAD_FL_SOURCE);
+ if (source_pad < 0)
+ return source_pad;
+
+ ret = media_create_pad_link(&remote_subdev->entity, source_pad,
+ &subdev->entity, 0,
+ MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
+ if (ret) {
+ dev_err(cdev->dev, "failed to create %s:%u -> %s:%u link\n",
+ remote_subdev->entity.name, source_pad,
+ subdev->entity.name, 0);
+ return ret;
+ }
+
+ video->remote_subdev = remote_subdev;
+
+ return 0;
+}
+
+static const
+struct v4l2_async_notifier_operations sun8i_a83t_mipi_csi2_notifier_ops = {
+ .bound = sun8i_a83t_mipi_csi2_notifier_bound,
+};
+
+/* Media Entity */
+
+static const struct media_entity_operations sun8i_a83t_mipi_csi2_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+/* Base Driver */
+
+static int sun8i_a83t_mipi_csi2_suspend(struct device *dev)
+{
+ struct sun8i_a83t_mipi_csi2_dev *cdev = dev_get_drvdata(dev);
+
+ clk_disable_unprepare(cdev->clk_misc);
+ clk_disable_unprepare(cdev->clk_mipi);
+ clk_disable_unprepare(cdev->clk_mod);
+ clk_disable_unprepare(cdev->clk_bus);
+ reset_control_assert(cdev->reset);
+
+ return 0;
+}
+
+static int sun8i_a83t_mipi_csi2_resume(struct device *dev)
+{
+ struct sun8i_a83t_mipi_csi2_dev *cdev = dev_get_drvdata(dev);
+ int ret;
+
+ ret = reset_control_deassert(cdev->reset);
+ if (ret) {
+ dev_err(cdev->dev, "failed to deassert reset\n");
+ return ret;
+ }
+
+ ret = clk_prepare_enable(cdev->clk_bus);
+ if (ret) {
+ dev_err(cdev->dev, "failed to enable bus clock\n");
+ goto error_reset;
+ }
+
+ ret = clk_prepare_enable(cdev->clk_mod);
+ if (ret) {
+ dev_err(cdev->dev, "failed to enable module clock\n");
+ goto error_clk_bus;
+ }
+
+ ret = clk_prepare_enable(cdev->clk_mipi);
+ if (ret) {
+ dev_err(cdev->dev, "failed to enable MIPI clock\n");
+ goto error_clk_mod;
+ }
+
+ ret = clk_prepare_enable(cdev->clk_misc);
+ if (ret) {
+ dev_err(cdev->dev, "failed to enable CSI misc clock\n");
+ goto error_clk_mipi;
+ }
+
+ sun8i_a83t_mipi_csi2_init(cdev);
+
+ return 0;
+
+error_clk_mipi:
+ clk_disable_unprepare(cdev->clk_mipi);
+
+error_clk_mod:
+ clk_disable_unprepare(cdev->clk_mod);
+
+error_clk_bus:
+ clk_disable_unprepare(cdev->clk_bus);
+
+error_reset:
+ reset_control_assert(cdev->reset);
+
+ return ret;
+}
+
+static int
+sun8i_a83t_mipi_csi2_v4l2_setup(struct sun8i_a83t_mipi_csi2_dev *cdev)
+{
+ struct sun8i_a83t_mipi_csi2_video *video = &cdev->video;
+ struct v4l2_subdev *subdev = &video->subdev;
+ struct v4l2_async_notifier *notifier = &video->notifier;
+ struct fwnode_handle *handle = NULL;
+ struct v4l2_fwnode_endpoint *endpoint;
+ struct v4l2_async_subdev *subdev_async;
+ int ret;
+
+ /* Subdev */
+
+ v4l2_subdev_init(subdev, &sun8i_a83t_mipi_csi2_subdev_ops);
+ subdev->dev = cdev->dev;
+ subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ strscpy(subdev->name, MODULE_NAME, sizeof(subdev->name));
+ v4l2_set_subdevdata(subdev, cdev);
+
+ /* Entity */
+
+ subdev->entity.function = MEDIA_ENT_F_VID_IF_BRIDGE;
+ subdev->entity.ops = &sun8i_a83t_mipi_csi2_entity_ops;
+
+ /* Pads */
+
+ video->pads[0].flags = MEDIA_PAD_FL_SINK;
+ video->pads[1].flags = MEDIA_PAD_FL_SOURCE;
+
+ ret = media_entity_pads_init(&subdev->entity, 2, video->pads);
+ if (ret)
+ return ret;
+
+ /* Endpoint */
+
+ handle = fwnode_graph_get_endpoint_by_id(dev_fwnode(cdev->dev), 0, 0,
+ FWNODE_GRAPH_ENDPOINT_NEXT);
+ if (!handle) {
+ ret = -ENODEV;
+ goto error_media_entity;
+ }
+
+ endpoint = &video->endpoint;
+ endpoint->bus_type = V4L2_MBUS_CSI2_DPHY;
+
+ ret = v4l2_fwnode_endpoint_parse(handle, endpoint);
+ if (ret)
+ goto error_media_entity;
+
+ /* Notifier */
+
+ v4l2_async_notifier_init(notifier);
+
+ subdev_async = &video->subdev_async;
+ ret = v4l2_async_notifier_add_fwnode_remote_subdev(notifier, handle,
+ subdev_async);
+ if (ret)
+ goto error_media_entity;
+
+ fwnode_handle_put(handle);
+ handle = NULL;
+
+ video->notifier.ops = &sun8i_a83t_mipi_csi2_notifier_ops;
+
+ ret = v4l2_async_subdev_notifier_register(subdev, notifier);
+ if (ret < 0)
+ goto error_notifier;
+
+ /* Runtime PM */
+
+ pm_runtime_enable(cdev->dev);
+ pm_runtime_set_suspended(cdev->dev);
+
+ /* Subdev */
+
+ ret = v4l2_async_register_subdev(subdev);
+ if (ret < 0)
+ goto error_pm;
+
+ return 0;
+
+error_pm:
+ pm_runtime_disable(cdev->dev);
+ v4l2_async_notifier_unregister(notifier);
+
+error_notifier:
+ v4l2_async_notifier_cleanup(notifier);
+
+error_media_entity:
+ if (handle)
+ fwnode_handle_put(handle);
+
+ media_entity_cleanup(&subdev->entity);
+
+ return ret;
+}
+
+static int
+sun8i_a83t_mipi_csi2_v4l2_teardown(struct sun8i_a83t_mipi_csi2_dev *cdev)
+{
+ struct sun8i_a83t_mipi_csi2_video *video = &cdev->video;
+ struct v4l2_subdev *subdev = &video->subdev;
+ struct v4l2_async_notifier *notifier = &video->notifier;
+
+ v4l2_async_unregister_subdev(subdev);
+ pm_runtime_disable(cdev->dev);
+ v4l2_async_notifier_unregister(notifier);
+ v4l2_async_notifier_cleanup(notifier);
+ media_entity_cleanup(&subdev->entity);
+ v4l2_device_unregister_subdev(subdev);
+
+ return 0;
+}
+
+static const struct regmap_config sun8i_a83t_mipi_csi2_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = 0x120,
+};
+
+static int sun8i_a83t_mipi_csi2_probe(struct platform_device *pdev)
+{
+ struct sun8i_a83t_mipi_csi2_dev *cdev;
+ struct resource *res;
+ void __iomem *io_base;
+ int ret;
+
+ cdev = devm_kzalloc(&pdev->dev, sizeof(*cdev), GFP_KERNEL);
+ if (!cdev)
+ return -ENOMEM;
+
+ cdev->dev = &pdev->dev;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ io_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(io_base))
+ return PTR_ERR(io_base);
+
+ cdev->regmap =
+ devm_regmap_init_mmio(&pdev->dev, io_base,
+ &sun8i_a83t_mipi_csi2_regmap_config);
+ if (IS_ERR(cdev->regmap)) {
+ dev_err(&pdev->dev, "failed to init register map\n");
+ return PTR_ERR(cdev->regmap);
+ }
+
+ cdev->clk_bus = devm_clk_get(&pdev->dev, "bus");
+ if (IS_ERR(cdev->clk_bus)) {
+ dev_err(&pdev->dev, "failed to acquire bus clock\n");
+ return PTR_ERR(cdev->clk_bus);
+ }
+
+ cdev->clk_mod = devm_clk_get(&pdev->dev, "mod");
+ if (IS_ERR(cdev->clk_mod)) {
+ dev_err(&pdev->dev, "failed to acquire mod clock\n");
+ return PTR_ERR(cdev->clk_mod);
+ }
+
+ cdev->clk_mipi = devm_clk_get(&pdev->dev, "mipi");
+ if (IS_ERR(cdev->clk_mipi)) {
+ dev_err(&pdev->dev, "failed to acquire mipi clock\n");
+ return PTR_ERR(cdev->clk_mipi);
+ }
+
+ cdev->clk_misc = devm_clk_get(&pdev->dev, "misc");
+ if (IS_ERR(cdev->clk_misc)) {
+ dev_err(&pdev->dev, "failed to acquire misc clock\n");
+ return PTR_ERR(cdev->clk_misc);
+ }
+
+ cdev->reset = devm_reset_control_get_shared(&pdev->dev, NULL);
+ if (IS_ERR(cdev->reset)) {
+ dev_err(&pdev->dev, "failed to get reset controller\n");
+ return PTR_ERR(cdev->reset);
+ }
+
+ ret = sun8i_a83t_dphy_register(cdev);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to init MIPI D-PHY\n");
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, cdev);
+
+ ret = sun8i_a83t_mipi_csi2_v4l2_setup(cdev);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int sun8i_a83t_mipi_csi2_remove(struct platform_device *pdev)
+{
+ struct sun8i_a83t_mipi_csi2_dev *cdev = platform_get_drvdata(pdev);
+
+ phy_exit(cdev->dphy);
+
+ return sun8i_a83t_mipi_csi2_v4l2_teardown(cdev);
+}
+
+static const struct dev_pm_ops sun8i_a83t_mipi_csi2_pm_ops = {
+ SET_RUNTIME_PM_OPS(sun8i_a83t_mipi_csi2_suspend,
+ sun8i_a83t_mipi_csi2_resume, NULL)
+};
+
+static const struct of_device_id sun8i_a83t_mipi_csi2_of_match[] = {
+ { .compatible = "allwinner,sun8i-a83t-mipi-csi2" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, sun8i_a83t_mipi_csi2_of_match);
+
+static struct platform_driver sun8i_a83t_mipi_csi2_platform_driver = {
+ .probe = sun8i_a83t_mipi_csi2_probe,
+ .remove = sun8i_a83t_mipi_csi2_remove,
+ .driver = {
+ .name = MODULE_NAME,
+ .of_match_table = of_match_ptr(sun8i_a83t_mipi_csi2_of_match),
+ .pm = &sun8i_a83t_mipi_csi2_pm_ops,
+ },
+};
+module_platform_driver(sun8i_a83t_mipi_csi2_platform_driver);
+
+MODULE_DESCRIPTION("Allwinner A83T MIPI CSI-2 and D-PHY Controller Driver");
+MODULE_AUTHOR("Paul Kocialkowski <paul.kocialkowski@bootlin.com>");
+MODULE_LICENSE("GPL");
new file mode 100644
@@ -0,0 +1,197 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2020 Kévin L'hôpital <kevin.lhopital@bootlin.com>
+ * Copyright 2020 Bootlin
+ * Author: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
+ */
+
+#ifndef __SUN8I_A83T_MIPI_CSI2_H__
+#define __SUN8I_A83T_MIPI_CSI2_H__
+
+#include <linux/phy/phy.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+
+#define SUN8I_A83T_MIPI_CSI2_VERSION_REG 0x0
+#define SUN8I_A83T_MIPI_CSI2_CTRL_REG 0x4
+#define SUN8I_A83T_MIPI_CSI2_CTRL_INIT_VALUE 0xb8c39bec
+#define SUN8I_A83T_MIPI_CSI2_CTRL_RESET_N BIT(31)
+#define SUN8I_A83T_MIPI_CSI2_RX_PKT_NUM_REG 0x8
+#define SUN8I_A83T_MIPI_CSI2_RX_PKT_NUM_INIT_VALUE 0xb8d257f8
+#define SUN8I_A83T_MIPI_CSI2_RSVD0_REG 0xc
+
+#define SUN8I_A83T_MIPI_CSI2_RSVD1_REG 0x18
+#define SUN8I_A83T_MIPI_CSI2_RSVD1_HW_LOCK_VALUE 0xb8c8a30c
+#define SUN8I_A83T_MIPI_CSI2_RSVD2_REG 0x1c
+#define SUN8I_A83T_MIPI_CSI2_RSVD2_HW_LOCK_VALUE 0xb8df8ad7
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_REG 0x20
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_ECC_ERR_DBL BIT(28)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LINE_CKSM_ERR_VC3 BIT(27)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LINE_CKSM_ERR_VC2 BIT(26)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LINE_CKSM_ERR_VC1 BIT(25)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LINE_CKSM_ERR_VC0 BIT(24)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LINE_SEQ_ERR_DT3 BIT(23)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LINE_SEQ_ERR_DT2 BIT(22)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LINE_SEQ_ERR_DT1 BIT(21)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LINE_SEQ_ERR_DT0 BIT(20)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LS_LE_ERR_DT3 BIT(19)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LS_LE_ERR_DT2 BIT(18)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LS_LE_ERR_DT1 BIT(17)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_LS_LE_ERR_DT0 BIT(16)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_CRC_ERR_VC3 BIT(15)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_CRC_ERR_VC2 BIT(14)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_CRC_ERR_VC1 BIT(13)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_CRC_ERR_VC0 BIT(12)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_FRM_SEQ_ERR_VC3 BIT(11)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_FRM_SEQ_ERR_VC2 BIT(10)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_FRM_SEQ_ERR_VC1 BIT(9)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_FRM_SEQ_ERR_VC0 BIT(8)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_FS_FE_ERR_VC3 BIT(7)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_FS_FE_ERR_VC2 BIT(6)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_FS_FE_ERR_VC1 BIT(5)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_FS_FE_ERR_VC0 BIT(4)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_SOT_SYNC_ERR_3 BIT(3)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_SOT_SYNC_ERR_2 BIT(2)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_SOT_SYNC_ERR_1 BIT(1)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA0_SOT_SYNC_ERR_0 BIT(0)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_REG 0x24
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_LINE_SEQ_ERR_DT7 BIT(23)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_LINE_SEQ_ERR_DT6 BIT(22)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_LINE_SEQ_ERR_DT5 BIT(21)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_LINE_SEQ_ERR_DT4 BIT(20)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_LS_LE_ERR_DT7 BIT(19)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_LS_LE_ERR_DT6 BIT(18)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_LS_LE_ERR_DT5 BIT(17)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_LS_LE_ERR_DT4 BIT(16)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_DT_ERR_VC3 BIT(15)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_DT_ERR_VC2 BIT(14)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_DT_ERR_VC1 BIT(13)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_DT_ERR_VC0 BIT(12)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_ECC_ERR1_VC3 BIT(11)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_ECC_ERR1_VC2 BIT(10)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_ECC_ERR1_VC1 BIT(9)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_ECC_ERR1_VC0 BIT(8)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_SOT_ERR_3 BIT(7)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_SOT_ERR_2 BIT(6)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_SOT_ERR_1 BIT(5)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_SOT_ERR_0 BIT(4)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_ESC_ENTRY_ERR_3 BIT(3)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_ESC_ENTRY_ERR_2 BIT(2)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_ESC_ENTRY_ERR_1 BIT(1)
+#define SUN8I_A83T_MIPI_CSI2_INT_STA1_ESC_ENTRY_ERR_0 BIT(0)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_REG 0x28
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_ECC_ERR_DBL BIT(28)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_CKSM_ERR_VC3 BIT(27)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_CKSM_ERR_VC2 BIT(26)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_CKSM_ERR_VC1 BIT(25)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_CKSM_ERR_VC0 BIT(24)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_LINE_SEQ_ERR_DT3 BIT(23)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_LINE_SEQ_ERR_DT2 BIT(22)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_LINE_SEQ_ERR_DT1 BIT(21)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_LINE_SEQ_ERR_DT0 BIT(20)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_LS_LE_ERR_DT3 BIT(19)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_LS_LE_ERR_DT2 BIT(18)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_LS_LE_ERR_DT1 BIT(17)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_LS_LE_ERR_DT0 BIT(16)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_CRC_ERR_VC3 BIT(15)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_CRC_ERR_VC2 BIT(14)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_CRC_ERR_VC1 BIT(13)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_CRC_ERR_VC0 BIT(12)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_FRM_SEQ_ERR_VC3 BIT(11)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_FRM_SEQ_ERR_VC2 BIT(10)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_FRM_SEQ_ERR_VC1 BIT(9)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_FRM_SEQ_ERR_VC0 BIT(8)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_FS_FE_ERR_VC3 BIT(7)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_FS_FE_ERR_VC2 BIT(6)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_FS_FE_ERR_VC1 BIT(5)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_FS_FE_ERR_VC0 BIT(4)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_SOT_SYNC_ERR_3 BIT(3)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_SOT_SYNC_ERR_2 BIT(2)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_SOT_SYNC_ERR_1 BIT(1)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK0_SOT_SYNC_ERR_0 BIT(0)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_REG 0x2c
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_DT_ERR_VC3 BIT(15)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_DT_ERR_VC2 BIT(14)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_DT_ERR_VC1 BIT(13)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_DT_ERR_VC0 BIT(12)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_ECC_ERR1_VC3 BIT(11)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_ECC_ERR1_VC2 BIT(10)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_ECC_ERR1_VC1 BIT(9)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_ECC_ERR1_VC0 BIT(8)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_SOT_ERR_3 BIT(7)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_SOT_ERR_2 BIT(6)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_SOT_ERR_1 BIT(5)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_SOT_ERR_0 BIT(4)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_ESC_ENTRY_ERR_3 BIT(3)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_ESC_ENTRY_ERR_2 BIT(2)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_ESC_ENTRY_ERR_1 BIT(1)
+#define SUN8I_A83T_MIPI_CSI2_INT_MSK1_ESC_ENTRY_ERR_0 BIT(0)
+
+#define SUN8I_A83T_MIPI_CSI2_CFG_REG 0x100
+#define SUN8I_A83T_MIPI_CSI2_CFG_INIT_VALUE 0xb8c64f24
+#define SUN8I_A83T_MIPI_CSI2_CFG_SYNC_EN BIT(31)
+#define SUN8I_A83T_MIPI_CSI2_CFG_BYPASS_ECC_EN BIT(29)
+#define SUN8I_A83T_MIPI_CSI2_CFG_UNPKT_EN BIT(28)
+#define SUN8I_A83T_MIPI_CSI2_CFG_NONE_UNPKT_RX_MODE BIT(27)
+#define SUN8I_A83T_MIPI_CSI2_CFG_YC_SWAB BIT(26)
+#define SUN8I_A83T_MIPI_CSI2_CFG_N_BYTE BIT(24)
+#define SUN8I_A83T_MIPI_CSI2_CFG_SYNC_DLY_CYCLE(v) (((v) << 18) & \
+ GENMASK(22, 18))
+#define SUN8I_A83T_MIPI_CSI2_CFG_N_CHANNEL(v) ((((v) - 1) << 16) & \
+ GENMASK(17, 16))
+#define SUN8I_A83T_MIPI_CSI2_CFG_N_LANE(v) ((((v) - 1) << 4) & \
+ GENMASK(5, 4))
+#define SUN8I_A83T_MIPI_CSI2_VCDT0_REG 0x104
+#define SUN8I_A83T_MIPI_CSI2_VCDT0_CH_VC(ch, vc) (((vc) & GENMASK(1, 0)) << \
+ ((ch) * 8 + 6))
+#define SUN8I_A83T_MIPI_CSI2_VCDT0_CH_DT(ch, t) (((t) & GENMASK(5, 0)) << \
+ ((ch) * 8))
+#define SUN8I_A83T_MIPI_CSI2_VCDT1_REG 0x108
+#define SUN8I_A83T_MIPI_CSI2_VCDT1_CH_VC(ch, vc) (((vc) & GENMASK(1, 0)) << \
+ (((ch) - 4) * 8 + 6))
+#define SUN8I_A83T_MIPI_CSI2_VCDT1_CH_DT(ch, t) (((t) & GENMASK(5, 0)) << \
+ (((ch) - 4) * 8))
+
+enum mipi_csi2_data_type {
+ MIPI_CSI2_DATA_TYPE_RAW8 = 0x2a,
+ MIPI_CSI2_DATA_TYPE_RAW10 = 0x2b,
+ MIPI_CSI2_DATA_TYPE_RAW12 = 0x2c,
+};
+
+struct sun8i_a83t_mipi_csi2_video {
+ struct v4l2_fwnode_endpoint endpoint;
+ struct v4l2_subdev subdev;
+ struct media_pad pads[2];
+
+ struct v4l2_async_subdev subdev_async;
+ struct v4l2_async_notifier notifier;
+
+ struct v4l2_subdev *remote_subdev;
+
+ struct v4l2_mbus_framefmt mbus_format;
+};
+
+struct sun8i_a83t_mipi_csi2_dev {
+ struct device *dev;
+
+ struct regmap *regmap;
+ struct clk *clk_bus;
+ struct clk *clk_mod;
+ struct clk *clk_mipi;
+ struct clk *clk_misc;
+ struct reset_control *reset;
+ struct phy *dphy;
+ struct phy_configure_opts_mipi_dphy dphy_config;
+
+ struct sun8i_a83t_mipi_csi2_video video;
+};
+
+#define sun8i_a83t_mipi_csi2_subdev_video(s) \
+ container_of(s, struct sun8i_a83t_mipi_csi2_video, subdev)
+
+#define sun8i_a83t_mipi_csi2_video_dev(v) \
+ container_of(v, struct sun8i_a83t_mipi_csi2_dev, video)
+
+#endif /* __SUN8I_A83T_MIPI_CSI2_H__ */