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From: Svyatoslav Ryhel <clamor95@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
 Thierry Reding <treding@nvidia.com>,
 Mikko Perttunen <mperttunen@nvidia.com>, David Airlie <airlied@gmail.com>,
 Simona Vetter <simona@ffwll.ch>, Jonathan Hunter <jonathanh@nvidia.com>,
 Sowjanya Komatineni <skomatineni@nvidia.com>,
 Luca Ceresoli <luca.ceresoli@bootlin.com>,
 Mauro Carvalho Chehab <mchehab@kernel.org>,
 Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 Hans Verkuil <hverkuil+cisco@kernel.org>,
 Svyatoslav Ryhel <clamor95@gmail.com>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
 linux-tegra@vger.kernel.org, linux-media@vger.kernel.org,
 linux-staging@lists.linux.dev
Subject: [PATCH v7 05/15] gpu: host1x: convert MIPI to use operation function
 pointers
Date: Tue,  3 Mar 2026 10:42:28 +0200
Message-ID: <20260303084239.15007-6-clamor95@gmail.com>
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Convert existing MIPI code to use operation function pointers, a necessary
step for supporting Tegra20/Tegra30 SoCs. All common MIPI configuration
that is SoC-independent remains in mipi.c, while all SoC-specific code is
moved to tegra114-mipi.c (The naming matches the first SoC generation with
a dedicated calibration block). Shared structures and function calls are
placed into tegra-mipi-cal.h.

Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # tegra20, parallel camera
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Acked-by: Mikko Perttunen <mperttunen@nvidia.com>
---
 drivers/gpu/drm/tegra/dsi.c             |   1 +
 drivers/gpu/host1x/Makefile             |   1 +
 drivers/gpu/host1x/mipi.c               | 592 +++++-------------------
 drivers/gpu/host1x/tegra114-mipi.c      | 483 +++++++++++++++++++
 drivers/staging/media/tegra-video/csi.c |   1 +
 include/linux/host1x.h                  |  10 -
 include/linux/tegra-mipi-cal.h          |  57 +++
 7 files changed, 666 insertions(+), 479 deletions(-)
 create mode 100644 drivers/gpu/host1x/tegra114-mipi.c
 create mode 100644 include/linux/tegra-mipi-cal.h

diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 2c5aefe9621a..7f25c50621c9 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -14,6 +14,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>
 #include <linux/reset.h>
+#include <linux/tegra-mipi-cal.h>
 
 #include <video/mipi_display.h>
 
diff --git a/drivers/gpu/host1x/Makefile b/drivers/gpu/host1x/Makefile
index ee5286ffe08d..fead483af0b4 100644
--- a/drivers/gpu/host1x/Makefile
+++ b/drivers/gpu/host1x/Makefile
@@ -9,6 +9,7 @@ host1x-y = \
 	job.o \
 	debug.o \
 	mipi.o \
+	tegra114-mipi.o \
 	fence.o \
 	hw/host1x01.o \
 	hw/host1x02.o \
diff --git a/drivers/gpu/host1x/mipi.c b/drivers/gpu/host1x/mipi.c
index fea9f491df66..01513b775d89 100644
--- a/drivers/gpu/host1x/mipi.c
+++ b/drivers/gpu/host1x/mipi.c
@@ -1,215 +1,110 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2013 NVIDIA Corporation
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting documentation, and
- * that the name of the copyright holders not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission.  The copyright holders make no representations
- * about the suitability of this software for any purpose.  It is provided "as
- * is" without express or implied warranty.
- *
- * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
- * OF THIS SOFTWARE.
+ * Copyright (C) 2025 Svyatoslav Ryhel <clamor95@gmail.com>
  */
 
 #include <linux/clk.h>
-#include <linux/host1x.h>
 #include <linux/io.h>
 #include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
+#include <linux/tegra-mipi-cal.h>
 
-#include "dev.h"
-
-#define MIPI_CAL_CTRL			0x00
-#define MIPI_CAL_CTRL_NOISE_FILTER(x)	(((x) & 0xf) << 26)
-#define MIPI_CAL_CTRL_PRESCALE(x)	(((x) & 0x3) << 24)
-#define MIPI_CAL_CTRL_CLKEN_OVR		(1 << 4)
-#define MIPI_CAL_CTRL_START		(1 << 0)
-
-#define MIPI_CAL_AUTOCAL_CTRL		0x01
-
-#define MIPI_CAL_STATUS			0x02
-#define MIPI_CAL_STATUS_DONE		(1 << 16)
-#define MIPI_CAL_STATUS_ACTIVE		(1 <<  0)
-
-#define MIPI_CAL_CONFIG_CSIA		0x05
-#define MIPI_CAL_CONFIG_CSIB		0x06
-#define MIPI_CAL_CONFIG_CSIC		0x07
-#define MIPI_CAL_CONFIG_CSID		0x08
-#define MIPI_CAL_CONFIG_CSIE		0x09
-#define MIPI_CAL_CONFIG_CSIF		0x0a
-#define MIPI_CAL_CONFIG_DSIA		0x0e
-#define MIPI_CAL_CONFIG_DSIB		0x0f
-#define MIPI_CAL_CONFIG_DSIC		0x10
-#define MIPI_CAL_CONFIG_DSID		0x11
-
-#define MIPI_CAL_CONFIG_DSIA_CLK	0x19
-#define MIPI_CAL_CONFIG_DSIB_CLK	0x1a
-#define MIPI_CAL_CONFIG_CSIAB_CLK	0x1b
-#define MIPI_CAL_CONFIG_DSIC_CLK	0x1c
-#define MIPI_CAL_CONFIG_CSICD_CLK	0x1c
-#define MIPI_CAL_CONFIG_DSID_CLK	0x1d
-#define MIPI_CAL_CONFIG_CSIE_CLK	0x1d
-
-/* for data and clock lanes */
-#define MIPI_CAL_CONFIG_SELECT		(1 << 21)
-
-/* for data lanes */
-#define MIPI_CAL_CONFIG_HSPDOS(x)	(((x) & 0x1f) << 16)
-#define MIPI_CAL_CONFIG_HSPUOS(x)	(((x) & 0x1f) <<  8)
-#define MIPI_CAL_CONFIG_TERMOS(x)	(((x) & 0x1f) <<  0)
-
-/* for clock lanes */
-#define MIPI_CAL_CONFIG_HSCLKPDOSD(x)	(((x) & 0x1f) <<  8)
-#define MIPI_CAL_CONFIG_HSCLKPUOSD(x)	(((x) & 0x1f) <<  0)
-
-#define MIPI_CAL_BIAS_PAD_CFG0		0x16
-#define MIPI_CAL_BIAS_PAD_PDVCLAMP	(1 << 1)
-#define MIPI_CAL_BIAS_PAD_E_VCLAMP_REF	(1 << 0)
-
-#define MIPI_CAL_BIAS_PAD_CFG1		0x17
-#define MIPI_CAL_BIAS_PAD_DRV_DN_REF(x) (((x) & 0x7) << 16)
-#define MIPI_CAL_BIAS_PAD_DRV_UP_REF(x) (((x) & 0x7) << 8)
-
-#define MIPI_CAL_BIAS_PAD_CFG2		0x18
-#define MIPI_CAL_BIAS_PAD_VCLAMP(x)	(((x) & 0x7) << 16)
-#define MIPI_CAL_BIAS_PAD_VAUXP(x)	(((x) & 0x7) << 4)
-#define MIPI_CAL_BIAS_PAD_PDVREG	(1 << 1)
-
-struct tegra_mipi_pad {
-	unsigned long data;
-	unsigned long clk;
-};
-
-struct tegra_mipi_soc {
-	bool has_clk_lane;
-	const struct tegra_mipi_pad *pads;
-	unsigned int num_pads;
-
-	bool clock_enable_override;
-	bool needs_vclamp_ref;
-
-	/* bias pad configuration settings */
-	u8 pad_drive_down_ref;
-	u8 pad_drive_up_ref;
+/* only need to support one provider */
+static struct {
+	struct device_node *np;
+	const struct tegra_mipi_ops *ops;
+} provider;
 
-	u8 pad_vclamp_level;
-	u8 pad_vauxp_level;
-
-	/* calibration settings for data lanes */
-	u8 hspdos;
-	u8 hspuos;
-	u8 termos;
-
-	/* calibration settings for clock lanes */
-	u8 hsclkpdos;
-	u8 hsclkpuos;
-};
-
-struct tegra_mipi {
-	const struct tegra_mipi_soc *soc;
-	struct device *dev;
-	void __iomem *regs;
-	struct mutex lock;
-	struct clk *clk;
-
-	unsigned long usage_count;
-};
-
-struct tegra_mipi_device {
-	struct platform_device *pdev;
-	struct tegra_mipi *mipi;
-	struct device *device;
-	unsigned long pads;
-};
-
-static inline u32 tegra_mipi_readl(struct tegra_mipi *mipi,
-				   unsigned long offset)
+/**
+ * tegra_mipi_enable - Enable the Tegra MIPI calibration device.
+ * @device: Handle to the Tegra MIPI calibration device.
+ *
+ * This calls the enable sequence for the Tegra MIPI calibration device.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int tegra_mipi_enable(struct tegra_mipi_device *device)
 {
-	return readl(mipi->regs + (offset << 2));
-}
+	if (device->ops->enable)
+		return device->ops->enable(device);
 
-static inline void tegra_mipi_writel(struct tegra_mipi *mipi, u32 value,
-				     unsigned long offset)
-{
-	writel(value, mipi->regs + (offset << 2));
+	return 0;
 }
+EXPORT_SYMBOL(tegra_mipi_enable);
 
-static int tegra_mipi_power_up(struct tegra_mipi *mipi)
+/**
+ * tegra_mipi_disable - Disable the Tegra MIPI calibration device.
+ * @device: Handle to the Tegra MIPI calibration device.
+ *
+ * This calls the disable sequence for the Tegra MIPI calibration device.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int tegra_mipi_disable(struct tegra_mipi_device *device)
 {
-	u32 value;
-	int err;
-
-	err = clk_enable(mipi->clk);
-	if (err < 0)
-		return err;
-
-	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG0);
-	value &= ~MIPI_CAL_BIAS_PAD_PDVCLAMP;
-
-	if (mipi->soc->needs_vclamp_ref)
-		value |= MIPI_CAL_BIAS_PAD_E_VCLAMP_REF;
-
-	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG0);
-
-	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG2);
-	value &= ~MIPI_CAL_BIAS_PAD_PDVREG;
-	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG2);
-
-	clk_disable(mipi->clk);
+	if (device->ops->disable)
+		return device->ops->disable(device);
 
 	return 0;
 }
+EXPORT_SYMBOL(tegra_mipi_disable);
 
-static int tegra_mipi_power_down(struct tegra_mipi *mipi)
+/**
+ * tegra_mipi_start_calibration - Start the Tegra MIPI calibration sequence.
+ * @device: Handle to the Tegra MIPI calibration device.
+ *
+ * This initiates the calibration of CSI/DSI interfaces via the Tegra MIPI
+ * calibration device.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int tegra_mipi_start_calibration(struct tegra_mipi_device *device)
 {
-	u32 value;
-	int err;
-
-	err = clk_enable(mipi->clk);
-	if (err < 0)
-		return err;
-
-	/*
-	 * The MIPI_CAL_BIAS_PAD_PDVREG controls a voltage regulator that
-	 * supplies the DSI pads. This must be kept enabled until none of the
-	 * DSI lanes are used anymore.
-	 */
-	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG2);
-	value |= MIPI_CAL_BIAS_PAD_PDVREG;
-	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG2);
-
-	/*
-	 * MIPI_CAL_BIAS_PAD_PDVCLAMP and MIPI_CAL_BIAS_PAD_E_VCLAMP_REF
-	 * control a regulator that supplies current to the pre-driver logic.
-	 * Powering down this regulator causes DSI to fail, so it must remain
-	 * powered on until none of the DSI lanes are used anymore.
-	 */
-	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG0);
+	if (device->ops->start_calibration)
+		return device->ops->start_calibration(device);
 
-	if (mipi->soc->needs_vclamp_ref)
-		value &= ~MIPI_CAL_BIAS_PAD_E_VCLAMP_REF;
+	return 0;
+}
+EXPORT_SYMBOL(tegra_mipi_start_calibration);
 
-	value |= MIPI_CAL_BIAS_PAD_PDVCLAMP;
-	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG0);
+/**
+ * tegra_mipi_finish_calibration - Finish the Tegra MIPI calibration sequence.
+ * @device: Handle to the Tegra MIPI calibration device.
+ *
+ * This completes the calibration of CSI/DSI interfaces via the Tegra MIPI
+ * calibration device.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int tegra_mipi_finish_calibration(struct tegra_mipi_device *device)
+{
+	if (device->ops->finish_calibration)
+		return device->ops->finish_calibration(device);
 
 	return 0;
 }
+EXPORT_SYMBOL(tegra_mipi_finish_calibration);
 
+/**
+ * tegra_mipi_request - Request a Tegra MIPI calibration device.
+ * @device: Handle of the device requesting the MIPI calibration function.
+ * @np: Device node pointer of the device requesting the MIPI calibration
+ *	function.
+ *
+ * This function requests a reference to a Tegra MIPI calibration device.
+ *
+ * Returns a pointer to the Tegra MIPI calibration device on success,
+ * or an ERR_PTR-encoded error code on failure.
+ */
 struct tegra_mipi_device *tegra_mipi_request(struct device *device,
 					     struct device_node *np)
 {
-	struct tegra_mipi_device *dev;
+	struct tegra_mipi_device *mipidev;
 	struct of_phandle_args args;
 	int err;
 
@@ -219,321 +114,80 @@ struct tegra_mipi_device *tegra_mipi_request(struct device *device,
 	if (err < 0)
 		return ERR_PTR(err);
 
-	dev = kzalloc_obj(*dev);
-	if (!dev) {
+	if (provider.np != args.np)
+		return ERR_PTR(-ENODEV);
+
+	mipidev = kzalloc_obj(*mipidev);
+	if (!mipidev) {
 		err = -ENOMEM;
 		goto out;
 	}
 
-	dev->pdev = of_find_device_by_node(args.np);
-	if (!dev->pdev) {
+	mipidev->pdev = of_find_device_by_node(args.np);
+	if (!mipidev->pdev) {
 		err = -ENODEV;
 		goto free;
 	}
 
-	dev->mipi = platform_get_drvdata(dev->pdev);
-	if (!dev->mipi) {
-		err = -EPROBE_DEFER;
-		goto put;
-	}
-
 	of_node_put(args.np);
 
-	dev->pads = args.args[0];
-	dev->device = device;
+	mipidev->ops = provider.ops;
+	mipidev->pads = args.args[0];
 
-	return dev;
+	return mipidev;
 
-put:
-	platform_device_put(dev->pdev);
 free:
-	kfree(dev);
+	kfree(mipidev);
 out:
 	of_node_put(args.np);
 	return ERR_PTR(err);
 }
 EXPORT_SYMBOL(tegra_mipi_request);
 
-void tegra_mipi_free(struct tegra_mipi_device *device)
+/**
+ * tegra_mipi_free - Free a Tegra MIPI calibration device.
+ * @mipidev: Handle to the Tegra MIPI calibration device.
+ *
+ * This function releases a reference to a Tegra MIPI calibration device
+ * previously requested by tegra_mipi_request().
+ */
+void tegra_mipi_free(struct tegra_mipi_device *mipidev)
 {
-	platform_device_put(device->pdev);
-	kfree(device);
+	platform_device_put(mipidev->pdev);
+	kfree(mipidev);
 }
 EXPORT_SYMBOL(tegra_mipi_free);
 
-int tegra_mipi_enable(struct tegra_mipi_device *dev)
+static void tegra_mipi_remove_provider(void *data)
 {
-	int err = 0;
-
-	mutex_lock(&dev->mipi->lock);
-
-	if (dev->mipi->usage_count++ == 0)
-		err = tegra_mipi_power_up(dev->mipi);
-
-	mutex_unlock(&dev->mipi->lock);
-
-	return err;
-
-}
-EXPORT_SYMBOL(tegra_mipi_enable);
-
-int tegra_mipi_disable(struct tegra_mipi_device *dev)
-{
-	int err = 0;
-
-	mutex_lock(&dev->mipi->lock);
-
-	if (--dev->mipi->usage_count == 0)
-		err = tegra_mipi_power_down(dev->mipi);
-
-	mutex_unlock(&dev->mipi->lock);
-
-	return err;
-
-}
-EXPORT_SYMBOL(tegra_mipi_disable);
-
-int tegra_mipi_finish_calibration(struct tegra_mipi_device *device)
-{
-	struct tegra_mipi *mipi = device->mipi;
-	void __iomem *status_reg = mipi->regs + (MIPI_CAL_STATUS << 2);
-	u32 value;
-	int err;
-
-	err = readl_relaxed_poll_timeout(status_reg, value,
-					 !(value & MIPI_CAL_STATUS_ACTIVE) &&
-					 (value & MIPI_CAL_STATUS_DONE), 50,
-					 250000);
-	mutex_unlock(&device->mipi->lock);
-	clk_disable(device->mipi->clk);
-
-	return err;
+	provider.np = NULL;
+	provider.ops = NULL;
 }
-EXPORT_SYMBOL(tegra_mipi_finish_calibration);
-
-int tegra_mipi_start_calibration(struct tegra_mipi_device *device)
-{
-	const struct tegra_mipi_soc *soc = device->mipi->soc;
-	unsigned int i;
-	u32 value;
-	int err;
-
-	err = clk_enable(device->mipi->clk);
-	if (err < 0)
-		return err;
-
-	mutex_lock(&device->mipi->lock);
-
-	value = MIPI_CAL_BIAS_PAD_DRV_DN_REF(soc->pad_drive_down_ref) |
-		MIPI_CAL_BIAS_PAD_DRV_UP_REF(soc->pad_drive_up_ref);
-	tegra_mipi_writel(device->mipi, value, MIPI_CAL_BIAS_PAD_CFG1);
-
-	value = tegra_mipi_readl(device->mipi, MIPI_CAL_BIAS_PAD_CFG2);
-	value &= ~MIPI_CAL_BIAS_PAD_VCLAMP(0x7);
-	value &= ~MIPI_CAL_BIAS_PAD_VAUXP(0x7);
-	value |= MIPI_CAL_BIAS_PAD_VCLAMP(soc->pad_vclamp_level);
-	value |= MIPI_CAL_BIAS_PAD_VAUXP(soc->pad_vauxp_level);
-	tegra_mipi_writel(device->mipi, value, MIPI_CAL_BIAS_PAD_CFG2);
-
-	for (i = 0; i < soc->num_pads; i++) {
-		u32 clk = 0, data = 0;
-
-		if (device->pads & BIT(i)) {
-			data = MIPI_CAL_CONFIG_SELECT |
-			       MIPI_CAL_CONFIG_HSPDOS(soc->hspdos) |
-			       MIPI_CAL_CONFIG_HSPUOS(soc->hspuos) |
-			       MIPI_CAL_CONFIG_TERMOS(soc->termos);
-			clk = MIPI_CAL_CONFIG_SELECT |
-			      MIPI_CAL_CONFIG_HSCLKPDOSD(soc->hsclkpdos) |
-			      MIPI_CAL_CONFIG_HSCLKPUOSD(soc->hsclkpuos);
-		}
 
-		tegra_mipi_writel(device->mipi, data, soc->pads[i].data);
-
-		if (soc->has_clk_lane && soc->pads[i].clk != 0)
-			tegra_mipi_writel(device->mipi, clk, soc->pads[i].clk);
-	}
-
-	value = tegra_mipi_readl(device->mipi, MIPI_CAL_CTRL);
-	value &= ~MIPI_CAL_CTRL_NOISE_FILTER(0xf);
-	value &= ~MIPI_CAL_CTRL_PRESCALE(0x3);
-	value |= MIPI_CAL_CTRL_NOISE_FILTER(0xa);
-	value |= MIPI_CAL_CTRL_PRESCALE(0x2);
-
-	if (!soc->clock_enable_override)
-		value &= ~MIPI_CAL_CTRL_CLKEN_OVR;
-	else
-		value |= MIPI_CAL_CTRL_CLKEN_OVR;
-
-	tegra_mipi_writel(device->mipi, value, MIPI_CAL_CTRL);
-
-	/* clear any pending status bits */
-	value = tegra_mipi_readl(device->mipi, MIPI_CAL_STATUS);
-	tegra_mipi_writel(device->mipi, value, MIPI_CAL_STATUS);
-
-	value = tegra_mipi_readl(device->mipi, MIPI_CAL_CTRL);
-	value |= MIPI_CAL_CTRL_START;
-	tegra_mipi_writel(device->mipi, value, MIPI_CAL_CTRL);
-
-	/*
-	 * Wait for min 72uS to let calibration logic finish calibration
-	 * sequence codes before waiting for pads idle state to apply the
-	 * results.
-	 */
-	usleep_range(75, 80);
-
-	return 0;
-}
-EXPORT_SYMBOL(tegra_mipi_start_calibration);
-
-static const struct tegra_mipi_pad tegra114_mipi_pads[] = {
-	{ .data = MIPI_CAL_CONFIG_CSIA },
-	{ .data = MIPI_CAL_CONFIG_CSIB },
-	{ .data = MIPI_CAL_CONFIG_CSIC },
-	{ .data = MIPI_CAL_CONFIG_CSID },
-	{ .data = MIPI_CAL_CONFIG_CSIE },
-	{ .data = MIPI_CAL_CONFIG_DSIA },
-	{ .data = MIPI_CAL_CONFIG_DSIB },
-	{ .data = MIPI_CAL_CONFIG_DSIC },
-	{ .data = MIPI_CAL_CONFIG_DSID },
-};
-
-static const struct tegra_mipi_soc tegra114_mipi_soc = {
-	.has_clk_lane = false,
-	.pads = tegra114_mipi_pads,
-	.num_pads = ARRAY_SIZE(tegra114_mipi_pads),
-	.clock_enable_override = true,
-	.needs_vclamp_ref = true,
-	.pad_drive_down_ref = 0x2,
-	.pad_drive_up_ref = 0x0,
-	.pad_vclamp_level = 0x0,
-	.pad_vauxp_level = 0x0,
-	.hspdos = 0x0,
-	.hspuos = 0x4,
-	.termos = 0x5,
-	.hsclkpdos = 0x0,
-	.hsclkpuos = 0x4,
-};
-
-static const struct tegra_mipi_pad tegra124_mipi_pads[] = {
-	{ .data = MIPI_CAL_CONFIG_CSIA, .clk = MIPI_CAL_CONFIG_CSIAB_CLK },
-	{ .data = MIPI_CAL_CONFIG_CSIB, .clk = MIPI_CAL_CONFIG_CSIAB_CLK },
-	{ .data = MIPI_CAL_CONFIG_CSIC, .clk = MIPI_CAL_CONFIG_CSICD_CLK },
-	{ .data = MIPI_CAL_CONFIG_CSID, .clk = MIPI_CAL_CONFIG_CSICD_CLK },
-	{ .data = MIPI_CAL_CONFIG_CSIE, .clk = MIPI_CAL_CONFIG_CSIE_CLK  },
-	{ .data = MIPI_CAL_CONFIG_DSIA, .clk = MIPI_CAL_CONFIG_DSIA_CLK  },
-	{ .data = MIPI_CAL_CONFIG_DSIB, .clk = MIPI_CAL_CONFIG_DSIB_CLK  },
-};
-
-static const struct tegra_mipi_soc tegra124_mipi_soc = {
-	.has_clk_lane = true,
-	.pads = tegra124_mipi_pads,
-	.num_pads = ARRAY_SIZE(tegra124_mipi_pads),
-	.clock_enable_override = true,
-	.needs_vclamp_ref = true,
-	.pad_drive_down_ref = 0x2,
-	.pad_drive_up_ref = 0x0,
-	.pad_vclamp_level = 0x0,
-	.pad_vauxp_level = 0x0,
-	.hspdos = 0x0,
-	.hspuos = 0x0,
-	.termos = 0x0,
-	.hsclkpdos = 0x1,
-	.hsclkpuos = 0x2,
-};
-
-static const struct tegra_mipi_soc tegra132_mipi_soc = {
-	.has_clk_lane = true,
-	.pads = tegra124_mipi_pads,
-	.num_pads = ARRAY_SIZE(tegra124_mipi_pads),
-	.clock_enable_override = false,
-	.needs_vclamp_ref = false,
-	.pad_drive_down_ref = 0x0,
-	.pad_drive_up_ref = 0x3,
-	.pad_vclamp_level = 0x0,
-	.pad_vauxp_level = 0x0,
-	.hspdos = 0x0,
-	.hspuos = 0x0,
-	.termos = 0x0,
-	.hsclkpdos = 0x3,
-	.hsclkpuos = 0x2,
-};
-
-static const struct tegra_mipi_pad tegra210_mipi_pads[] = {
-	{ .data = MIPI_CAL_CONFIG_CSIA, .clk = 0 },
-	{ .data = MIPI_CAL_CONFIG_CSIB, .clk = 0 },
-	{ .data = MIPI_CAL_CONFIG_CSIC, .clk = 0 },
-	{ .data = MIPI_CAL_CONFIG_CSID, .clk = 0 },
-	{ .data = MIPI_CAL_CONFIG_CSIE, .clk = 0 },
-	{ .data = MIPI_CAL_CONFIG_CSIF, .clk = 0 },
-	{ .data = MIPI_CAL_CONFIG_DSIA, .clk = MIPI_CAL_CONFIG_DSIA_CLK },
-	{ .data = MIPI_CAL_CONFIG_DSIB, .clk = MIPI_CAL_CONFIG_DSIB_CLK },
-	{ .data = MIPI_CAL_CONFIG_DSIC, .clk = MIPI_CAL_CONFIG_DSIC_CLK },
-	{ .data = MIPI_CAL_CONFIG_DSID, .clk = MIPI_CAL_CONFIG_DSID_CLK },
-};
-
-static const struct tegra_mipi_soc tegra210_mipi_soc = {
-	.has_clk_lane = true,
-	.pads = tegra210_mipi_pads,
-	.num_pads = ARRAY_SIZE(tegra210_mipi_pads),
-	.clock_enable_override = true,
-	.needs_vclamp_ref = false,
-	.pad_drive_down_ref = 0x0,
-	.pad_drive_up_ref = 0x3,
-	.pad_vclamp_level = 0x1,
-	.pad_vauxp_level = 0x1,
-	.hspdos = 0x0,
-	.hspuos = 0x2,
-	.termos = 0x0,
-	.hsclkpdos = 0x0,
-	.hsclkpuos = 0x2,
-};
-
-static const struct of_device_id tegra_mipi_of_match[] = {
-	{ .compatible = "nvidia,tegra114-mipi", .data = &tegra114_mipi_soc },
-	{ .compatible = "nvidia,tegra124-mipi", .data = &tegra124_mipi_soc },
-	{ .compatible = "nvidia,tegra132-mipi", .data = &tegra132_mipi_soc },
-	{ .compatible = "nvidia,tegra210-mipi", .data = &tegra210_mipi_soc },
-	{ },
-};
-
-static int tegra_mipi_probe(struct platform_device *pdev)
+/**
+ * devm_tegra_mipi_add_provider - Managed registration of a Tegra MIPI
+ *				  calibration function provider.
+ * @device: Handle to the device providing the MIPI calibration function.
+ * @np: Device node pointer of the device providing the MIPI calibration
+ *	function.
+ * @ops: Operations supported by the MIPI calibration device.
+ *
+ * This registers a device that provides MIPI calibration functions.
+ * For Tegra20 and Tegra30, this is the CSI block, while Tegra114 and
+ * newer SoC generations have a dedicated hardware block for these
+ * functions.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int devm_tegra_mipi_add_provider(struct device *device, struct device_node *np,
+				 const struct tegra_mipi_ops *ops)
 {
-	const struct of_device_id *match;
-	struct tegra_mipi *mipi;
-
-	match = of_match_node(tegra_mipi_of_match, pdev->dev.of_node);
-	if (!match)
-		return -ENODEV;
+	if (provider.np)
+		return -EBUSY;
 
-	mipi = devm_kzalloc(&pdev->dev, sizeof(*mipi), GFP_KERNEL);
-	if (!mipi)
-		return -ENOMEM;
+	provider.np = np;
+	provider.ops = ops;
 
-	mipi->soc = match->data;
-	mipi->dev = &pdev->dev;
-
-	mipi->regs = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
-	if (IS_ERR(mipi->regs))
-		return PTR_ERR(mipi->regs);
-
-	mutex_init(&mipi->lock);
-
-	mipi->clk = devm_clk_get_prepared(&pdev->dev, NULL);
-	if (IS_ERR(mipi->clk)) {
-		dev_err(&pdev->dev, "failed to get clock\n");
-		return PTR_ERR(mipi->clk);
-	}
-
-	platform_set_drvdata(pdev, mipi);
-
-	return 0;
+	return devm_add_action_or_reset(device, tegra_mipi_remove_provider, NULL);
 }
-
-struct platform_driver tegra_mipi_driver = {
-	.driver = {
-		.name = "tegra-mipi",
-		.of_match_table = tegra_mipi_of_match,
-	},
-	.probe = tegra_mipi_probe,
-};
+EXPORT_SYMBOL(devm_tegra_mipi_add_provider);
diff --git a/drivers/gpu/host1x/tegra114-mipi.c b/drivers/gpu/host1x/tegra114-mipi.c
new file mode 100644
index 000000000000..c084a09784d1
--- /dev/null
+++ b/drivers/gpu/host1x/tegra114-mipi.c
@@ -0,0 +1,483 @@
+/*
+ * Copyright (C) 2013 NVIDIA Corporation
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <linux/clk.h>
+#include <linux/host1x.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/tegra-mipi-cal.h>
+
+#include "dev.h"
+
+#define MIPI_CAL_CTRL			0x00
+#define MIPI_CAL_CTRL_NOISE_FILTER(x)	(((x) & 0xf) << 26)
+#define MIPI_CAL_CTRL_PRESCALE(x)	(((x) & 0x3) << 24)
+#define MIPI_CAL_CTRL_CLKEN_OVR		BIT(4)
+#define MIPI_CAL_CTRL_START		BIT(0)
+
+#define MIPI_CAL_AUTOCAL_CTRL		0x01
+
+#define MIPI_CAL_STATUS			0x02
+#define MIPI_CAL_STATUS_DONE		BIT(16)
+#define MIPI_CAL_STATUS_ACTIVE		BIT(0)
+
+#define MIPI_CAL_CONFIG_CSIA		0x05
+#define MIPI_CAL_CONFIG_CSIB		0x06
+#define MIPI_CAL_CONFIG_CSIC		0x07
+#define MIPI_CAL_CONFIG_CSID		0x08
+#define MIPI_CAL_CONFIG_CSIE		0x09
+#define MIPI_CAL_CONFIG_CSIF		0x0a
+#define MIPI_CAL_CONFIG_DSIA		0x0e
+#define MIPI_CAL_CONFIG_DSIB		0x0f
+#define MIPI_CAL_CONFIG_DSIC		0x10
+#define MIPI_CAL_CONFIG_DSID		0x11
+
+#define MIPI_CAL_CONFIG_DSIA_CLK	0x19
+#define MIPI_CAL_CONFIG_DSIB_CLK	0x1a
+#define MIPI_CAL_CONFIG_CSIAB_CLK	0x1b
+#define MIPI_CAL_CONFIG_DSIC_CLK	0x1c
+#define MIPI_CAL_CONFIG_CSICD_CLK	0x1c
+#define MIPI_CAL_CONFIG_DSID_CLK	0x1d
+#define MIPI_CAL_CONFIG_CSIE_CLK	0x1d
+
+/* for data and clock lanes */
+#define MIPI_CAL_CONFIG_SELECT		BIT(21)
+
+/* for data lanes */
+#define MIPI_CAL_CONFIG_HSPDOS(x)	(((x) & 0x1f) << 16)
+#define MIPI_CAL_CONFIG_HSPUOS(x)	(((x) & 0x1f) <<  8)
+#define MIPI_CAL_CONFIG_TERMOS(x)	(((x) & 0x1f) <<  0)
+
+/* for clock lanes */
+#define MIPI_CAL_CONFIG_HSCLKPDOSD(x)	(((x) & 0x1f) <<  8)
+#define MIPI_CAL_CONFIG_HSCLKPUOSD(x)	(((x) & 0x1f) <<  0)
+
+#define MIPI_CAL_BIAS_PAD_CFG0		0x16
+#define MIPI_CAL_BIAS_PAD_PDVCLAMP	BIT(1)
+#define MIPI_CAL_BIAS_PAD_E_VCLAMP_REF	BIT(0)
+
+#define MIPI_CAL_BIAS_PAD_CFG1		0x17
+#define MIPI_CAL_BIAS_PAD_DRV_DN_REF(x) (((x) & 0x7) << 16)
+#define MIPI_CAL_BIAS_PAD_DRV_UP_REF(x) (((x) & 0x7) << 8)
+
+#define MIPI_CAL_BIAS_PAD_CFG2		0x18
+#define MIPI_CAL_BIAS_PAD_VCLAMP(x)	(((x) & 0x7) << 16)
+#define MIPI_CAL_BIAS_PAD_VAUXP(x)	(((x) & 0x7) << 4)
+#define MIPI_CAL_BIAS_PAD_PDVREG	BIT(1)
+
+struct tegra_mipi_pad {
+	unsigned long data;
+	unsigned long clk;
+};
+
+struct tegra_mipi_soc {
+	bool has_clk_lane;
+	const struct tegra_mipi_pad *pads;
+	unsigned int num_pads;
+
+	bool clock_enable_override;
+	bool needs_vclamp_ref;
+
+	/* bias pad configuration settings */
+	u8 pad_drive_down_ref;
+	u8 pad_drive_up_ref;
+
+	u8 pad_vclamp_level;
+	u8 pad_vauxp_level;
+
+	/* calibration settings for data lanes */
+	u8 hspdos;
+	u8 hspuos;
+	u8 termos;
+
+	/* calibration settings for clock lanes */
+	u8 hsclkpdos;
+	u8 hsclkpuos;
+};
+
+struct tegra_mipi {
+	const struct tegra_mipi_soc *soc;
+	struct device *dev;
+	void __iomem *regs;
+	struct mutex lock; /* for register access */
+	struct clk *clk;
+
+	unsigned long usage_count;
+};
+
+static inline u32 tegra_mipi_readl(struct tegra_mipi *mipi,
+				   unsigned long offset)
+{
+	return readl(mipi->regs + (offset << 2));
+}
+
+static inline void tegra_mipi_writel(struct tegra_mipi *mipi, u32 value,
+				     unsigned long offset)
+{
+	writel(value, mipi->regs + (offset << 2));
+}
+
+static int tegra114_mipi_power_up(struct tegra_mipi *mipi)
+{
+	u32 value;
+	int err;
+
+	err = clk_enable(mipi->clk);
+	if (err < 0)
+		return err;
+
+	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG0);
+	value &= ~MIPI_CAL_BIAS_PAD_PDVCLAMP;
+
+	if (mipi->soc->needs_vclamp_ref)
+		value |= MIPI_CAL_BIAS_PAD_E_VCLAMP_REF;
+
+	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG0);
+
+	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG2);
+	value &= ~MIPI_CAL_BIAS_PAD_PDVREG;
+	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG2);
+
+	clk_disable(mipi->clk);
+
+	return 0;
+}
+
+static int tegra114_mipi_power_down(struct tegra_mipi *mipi)
+{
+	u32 value;
+	int err;
+
+	err = clk_enable(mipi->clk);
+	if (err < 0)
+		return err;
+
+	/*
+	 * The MIPI_CAL_BIAS_PAD_PDVREG controls a voltage regulator that
+	 * supplies the DSI pads. This must be kept enabled until none of the
+	 * DSI lanes are used anymore.
+	 */
+	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG2);
+	value |= MIPI_CAL_BIAS_PAD_PDVREG;
+	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG2);
+
+	/*
+	 * MIPI_CAL_BIAS_PAD_PDVCLAMP and MIPI_CAL_BIAS_PAD_E_VCLAMP_REF
+	 * control a regulator that supplies current to the pre-driver logic.
+	 * Powering down this regulator causes DSI to fail, so it must remain
+	 * powered on until none of the DSI lanes are used anymore.
+	 */
+	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG0);
+
+	if (mipi->soc->needs_vclamp_ref)
+		value &= ~MIPI_CAL_BIAS_PAD_E_VCLAMP_REF;
+
+	value |= MIPI_CAL_BIAS_PAD_PDVCLAMP;
+	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG0);
+
+	return 0;
+}
+
+static int tegra114_mipi_enable(struct tegra_mipi_device *mipidev)
+{
+	struct tegra_mipi *mipi = platform_get_drvdata(mipidev->pdev);
+	int err = 0;
+
+	mutex_lock(&mipi->lock);
+
+	if (mipi->usage_count++ == 0)
+		err = tegra114_mipi_power_up(mipi);
+
+	mutex_unlock(&mipi->lock);
+
+	return err;
+}
+
+static int tegra114_mipi_disable(struct tegra_mipi_device *mipidev)
+{
+	struct tegra_mipi *mipi = platform_get_drvdata(mipidev->pdev);
+	int err = 0;
+
+	mutex_lock(&mipi->lock);
+
+	if (--mipi->usage_count == 0)
+		err = tegra114_mipi_power_down(mipi);
+
+	mutex_unlock(&mipi->lock);
+
+	return err;
+}
+
+static int tegra114_mipi_finish_calibration(struct tegra_mipi_device *mipidev)
+{
+	struct tegra_mipi *mipi = platform_get_drvdata(mipidev->pdev);
+	void __iomem *status_reg = mipi->regs + (MIPI_CAL_STATUS << 2);
+	u32 value;
+	int err;
+
+	err = readl_relaxed_poll_timeout(status_reg, value,
+					 !(value & MIPI_CAL_STATUS_ACTIVE) &&
+					 (value & MIPI_CAL_STATUS_DONE), 50,
+					 250000);
+	mutex_unlock(&mipi->lock);
+	clk_disable(mipi->clk);
+
+	return err;
+}
+
+static int tegra114_mipi_start_calibration(struct tegra_mipi_device *mipidev)
+{
+	struct tegra_mipi *mipi = platform_get_drvdata(mipidev->pdev);
+	const struct tegra_mipi_soc *soc = mipi->soc;
+	unsigned int i;
+	u32 value;
+	int err;
+
+	err = clk_enable(mipi->clk);
+	if (err < 0)
+		return err;
+
+	mutex_lock(&mipi->lock);
+
+	value = MIPI_CAL_BIAS_PAD_DRV_DN_REF(soc->pad_drive_down_ref) |
+		MIPI_CAL_BIAS_PAD_DRV_UP_REF(soc->pad_drive_up_ref);
+	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG1);
+
+	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG2);
+	value &= ~MIPI_CAL_BIAS_PAD_VCLAMP(0x7);
+	value &= ~MIPI_CAL_BIAS_PAD_VAUXP(0x7);
+	value |= MIPI_CAL_BIAS_PAD_VCLAMP(soc->pad_vclamp_level);
+	value |= MIPI_CAL_BIAS_PAD_VAUXP(soc->pad_vauxp_level);
+	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG2);
+
+	for (i = 0; i < soc->num_pads; i++) {
+		u32 clk = 0, data = 0;
+
+		if (mipidev->pads & BIT(i)) {
+			data = MIPI_CAL_CONFIG_SELECT |
+			       MIPI_CAL_CONFIG_HSPDOS(soc->hspdos) |
+			       MIPI_CAL_CONFIG_HSPUOS(soc->hspuos) |
+			       MIPI_CAL_CONFIG_TERMOS(soc->termos);
+			clk = MIPI_CAL_CONFIG_SELECT |
+			      MIPI_CAL_CONFIG_HSCLKPDOSD(soc->hsclkpdos) |
+			      MIPI_CAL_CONFIG_HSCLKPUOSD(soc->hsclkpuos);
+		}
+
+		tegra_mipi_writel(mipi, data, soc->pads[i].data);
+
+		if (soc->has_clk_lane && soc->pads[i].clk != 0)
+			tegra_mipi_writel(mipi, clk, soc->pads[i].clk);
+	}
+
+	value = tegra_mipi_readl(mipi, MIPI_CAL_CTRL);
+	value &= ~MIPI_CAL_CTRL_NOISE_FILTER(0xf);
+	value &= ~MIPI_CAL_CTRL_PRESCALE(0x3);
+	value |= MIPI_CAL_CTRL_NOISE_FILTER(0xa);
+	value |= MIPI_CAL_CTRL_PRESCALE(0x2);
+
+	if (!soc->clock_enable_override)
+		value &= ~MIPI_CAL_CTRL_CLKEN_OVR;
+	else
+		value |= MIPI_CAL_CTRL_CLKEN_OVR;
+
+	tegra_mipi_writel(mipi, value, MIPI_CAL_CTRL);
+
+	/* clear any pending status bits */
+	value = tegra_mipi_readl(mipi, MIPI_CAL_STATUS);
+	tegra_mipi_writel(mipi, value, MIPI_CAL_STATUS);
+
+	value = tegra_mipi_readl(mipi, MIPI_CAL_CTRL);
+	value |= MIPI_CAL_CTRL_START;
+	tegra_mipi_writel(mipi, value, MIPI_CAL_CTRL);
+
+	/*
+	 * Wait for min 72uS to let calibration logic finish calibration
+	 * sequence codes before waiting for pads idle state to apply the
+	 * results.
+	 */
+	usleep_range(75, 80);
+
+	return 0;
+}
+
+static const struct tegra_mipi_ops tegra114_mipi_ops = {
+	.enable = tegra114_mipi_enable,
+	.disable = tegra114_mipi_disable,
+	.start_calibration = tegra114_mipi_start_calibration,
+	.finish_calibration = tegra114_mipi_finish_calibration,
+};
+
+static const struct tegra_mipi_pad tegra114_mipi_pads[] = {
+	{ .data = MIPI_CAL_CONFIG_CSIA },
+	{ .data = MIPI_CAL_CONFIG_CSIB },
+	{ .data = MIPI_CAL_CONFIG_CSIC },
+	{ .data = MIPI_CAL_CONFIG_CSID },
+	{ .data = MIPI_CAL_CONFIG_CSIE },
+	{ .data = MIPI_CAL_CONFIG_DSIA },
+	{ .data = MIPI_CAL_CONFIG_DSIB },
+	{ .data = MIPI_CAL_CONFIG_DSIC },
+	{ .data = MIPI_CAL_CONFIG_DSID },
+};
+
+static const struct tegra_mipi_soc tegra114_mipi_soc = {
+	.has_clk_lane = false,
+	.pads = tegra114_mipi_pads,
+	.num_pads = ARRAY_SIZE(tegra114_mipi_pads),
+	.clock_enable_override = true,
+	.needs_vclamp_ref = true,
+	.pad_drive_down_ref = 0x2,
+	.pad_drive_up_ref = 0x0,
+	.pad_vclamp_level = 0x0,
+	.pad_vauxp_level = 0x0,
+	.hspdos = 0x0,
+	.hspuos = 0x4,
+	.termos = 0x5,
+	.hsclkpdos = 0x0,
+	.hsclkpuos = 0x4,
+};
+
+static const struct tegra_mipi_pad tegra124_mipi_pads[] = {
+	{ .data = MIPI_CAL_CONFIG_CSIA, .clk = MIPI_CAL_CONFIG_CSIAB_CLK },
+	{ .data = MIPI_CAL_CONFIG_CSIB, .clk = MIPI_CAL_CONFIG_CSIAB_CLK },
+	{ .data = MIPI_CAL_CONFIG_CSIC, .clk = MIPI_CAL_CONFIG_CSICD_CLK },
+	{ .data = MIPI_CAL_CONFIG_CSID, .clk = MIPI_CAL_CONFIG_CSICD_CLK },
+	{ .data = MIPI_CAL_CONFIG_CSIE, .clk = MIPI_CAL_CONFIG_CSIE_CLK  },
+	{ .data = MIPI_CAL_CONFIG_DSIA, .clk = MIPI_CAL_CONFIG_DSIA_CLK  },
+	{ .data = MIPI_CAL_CONFIG_DSIB, .clk = MIPI_CAL_CONFIG_DSIB_CLK  },
+};
+
+static const struct tegra_mipi_soc tegra124_mipi_soc = {
+	.has_clk_lane = true,
+	.pads = tegra124_mipi_pads,
+	.num_pads = ARRAY_SIZE(tegra124_mipi_pads),
+	.clock_enable_override = true,
+	.needs_vclamp_ref = true,
+	.pad_drive_down_ref = 0x2,
+	.pad_drive_up_ref = 0x0,
+	.pad_vclamp_level = 0x0,
+	.pad_vauxp_level = 0x0,
+	.hspdos = 0x0,
+	.hspuos = 0x0,
+	.termos = 0x0,
+	.hsclkpdos = 0x1,
+	.hsclkpuos = 0x2,
+};
+
+static const struct tegra_mipi_soc tegra132_mipi_soc = {
+	.has_clk_lane = true,
+	.pads = tegra124_mipi_pads,
+	.num_pads = ARRAY_SIZE(tegra124_mipi_pads),
+	.clock_enable_override = false,
+	.needs_vclamp_ref = false,
+	.pad_drive_down_ref = 0x0,
+	.pad_drive_up_ref = 0x3,
+	.pad_vclamp_level = 0x0,
+	.pad_vauxp_level = 0x0,
+	.hspdos = 0x0,
+	.hspuos = 0x0,
+	.termos = 0x0,
+	.hsclkpdos = 0x3,
+	.hsclkpuos = 0x2,
+};
+
+static const struct tegra_mipi_pad tegra210_mipi_pads[] = {
+	{ .data = MIPI_CAL_CONFIG_CSIA, .clk = 0 },
+	{ .data = MIPI_CAL_CONFIG_CSIB, .clk = 0 },
+	{ .data = MIPI_CAL_CONFIG_CSIC, .clk = 0 },
+	{ .data = MIPI_CAL_CONFIG_CSID, .clk = 0 },
+	{ .data = MIPI_CAL_CONFIG_CSIE, .clk = 0 },
+	{ .data = MIPI_CAL_CONFIG_CSIF, .clk = 0 },
+	{ .data = MIPI_CAL_CONFIG_DSIA, .clk = MIPI_CAL_CONFIG_DSIA_CLK },
+	{ .data = MIPI_CAL_CONFIG_DSIB, .clk = MIPI_CAL_CONFIG_DSIB_CLK },
+	{ .data = MIPI_CAL_CONFIG_DSIC, .clk = MIPI_CAL_CONFIG_DSIC_CLK },
+	{ .data = MIPI_CAL_CONFIG_DSID, .clk = MIPI_CAL_CONFIG_DSID_CLK },
+};
+
+static const struct tegra_mipi_soc tegra210_mipi_soc = {
+	.has_clk_lane = true,
+	.pads = tegra210_mipi_pads,
+	.num_pads = ARRAY_SIZE(tegra210_mipi_pads),
+	.clock_enable_override = true,
+	.needs_vclamp_ref = false,
+	.pad_drive_down_ref = 0x0,
+	.pad_drive_up_ref = 0x3,
+	.pad_vclamp_level = 0x1,
+	.pad_vauxp_level = 0x1,
+	.hspdos = 0x0,
+	.hspuos = 0x2,
+	.termos = 0x0,
+	.hsclkpdos = 0x0,
+	.hsclkpuos = 0x2,
+};
+
+static const struct of_device_id tegra_mipi_of_match[] = {
+	{ .compatible = "nvidia,tegra114-mipi", .data = &tegra114_mipi_soc },
+	{ .compatible = "nvidia,tegra124-mipi", .data = &tegra124_mipi_soc },
+	{ .compatible = "nvidia,tegra132-mipi", .data = &tegra132_mipi_soc },
+	{ .compatible = "nvidia,tegra210-mipi", .data = &tegra210_mipi_soc },
+	{ },
+};
+
+static int tegra_mipi_probe(struct platform_device *pdev)
+{
+	const struct of_device_id *match;
+	struct tegra_mipi *mipi;
+
+	match = of_match_node(tegra_mipi_of_match, pdev->dev.of_node);
+	if (!match)
+		return -ENODEV;
+
+	mipi = devm_kzalloc(&pdev->dev, sizeof(*mipi), GFP_KERNEL);
+	if (!mipi)
+		return -ENOMEM;
+
+	mipi->soc = match->data;
+	mipi->dev = &pdev->dev;
+
+	mipi->regs = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
+	if (IS_ERR(mipi->regs))
+		return PTR_ERR(mipi->regs);
+
+	mutex_init(&mipi->lock);
+
+	mipi->clk = devm_clk_get_prepared(&pdev->dev, NULL);
+	if (IS_ERR(mipi->clk)) {
+		dev_err(&pdev->dev, "failed to get clock\n");
+		return PTR_ERR(mipi->clk);
+	}
+
+	platform_set_drvdata(pdev, mipi);
+
+	return devm_tegra_mipi_add_provider(&pdev->dev, pdev->dev.of_node,
+					    &tegra114_mipi_ops);
+}
+
+struct platform_driver tegra_mipi_driver = {
+	.driver = {
+		.name = "tegra-mipi",
+		.of_match_table = tegra_mipi_of_match,
+	},
+	.probe = tegra_mipi_probe,
+};
diff --git a/drivers/staging/media/tegra-video/csi.c b/drivers/staging/media/tegra-video/csi.c
index f858c05ce6c9..bcaea20c3025 100644
--- a/drivers/staging/media/tegra-video/csi.c
+++ b/drivers/staging/media/tegra-video/csi.c
@@ -12,6 +12,7 @@
 #include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/tegra-mipi-cal.h>
 
 #include <media/v4l2-fwnode.h>
 
diff --git a/include/linux/host1x.h b/include/linux/host1x.h
index 5e7a63143a4a..1f5f55917d1c 100644
--- a/include/linux/host1x.h
+++ b/include/linux/host1x.h
@@ -453,16 +453,6 @@ void host1x_client_unregister(struct host1x_client *client);
 int host1x_client_suspend(struct host1x_client *client);
 int host1x_client_resume(struct host1x_client *client);
 
-struct tegra_mipi_device;
-
-struct tegra_mipi_device *tegra_mipi_request(struct device *device,
-					     struct device_node *np);
-void tegra_mipi_free(struct tegra_mipi_device *device);
-int tegra_mipi_enable(struct tegra_mipi_device *device);
-int tegra_mipi_disable(struct tegra_mipi_device *device);
-int tegra_mipi_start_calibration(struct tegra_mipi_device *device);
-int tegra_mipi_finish_calibration(struct tegra_mipi_device *device);
-
 /* host1x memory contexts */
 
 struct host1x_memory_context {
diff --git a/include/linux/tegra-mipi-cal.h b/include/linux/tegra-mipi-cal.h
new file mode 100644
index 000000000000..2a540b50f65d
--- /dev/null
+++ b/include/linux/tegra-mipi-cal.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __TEGRA_MIPI_CAL_H_
+#define __TEGRA_MIPI_CAL_H_
+
+struct tegra_mipi_device {
+	const struct tegra_mipi_ops *ops;
+	struct platform_device *pdev;
+	unsigned long pads;
+};
+
+/**
+ * Operations for Tegra MIPI calibration device
+ */
+struct tegra_mipi_ops {
+	/**
+	 * @enable:
+	 *
+	 * Enable MIPI calibration device
+	 */
+	int (*enable)(struct tegra_mipi_device *device);
+
+	/**
+	 * @disable:
+	 *
+	 * Disable MIPI calibration device
+	 */
+	int (*disable)(struct tegra_mipi_device *device);
+
+	/**
+	 * @start_calibration:
+	 *
+	 * Start MIPI calibration
+	 */
+	int (*start_calibration)(struct tegra_mipi_device *device);
+
+	/**
+	 * @finish_calibration:
+	 *
+	 * Finish MIPI calibration
+	 */
+	int (*finish_calibration)(struct tegra_mipi_device *device);
+};
+
+int devm_tegra_mipi_add_provider(struct device *device, struct device_node *np,
+				 const struct tegra_mipi_ops *ops);
+
+struct tegra_mipi_device *tegra_mipi_request(struct device *device,
+					     struct device_node *np);
+void tegra_mipi_free(struct tegra_mipi_device *device);
+
+int tegra_mipi_enable(struct tegra_mipi_device *device);
+int tegra_mipi_disable(struct tegra_mipi_device *device);
+int tegra_mipi_start_calibration(struct tegra_mipi_device *device);
+int tegra_mipi_finish_calibration(struct tegra_mipi_device *device);
+
+#endif /* __TEGRA_MIPI_CAL_H_ */
-- 
2.51.0