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From: git@luigi311.com
To: linux-media@vger.kernel.org
Cc: dave.stevenson@raspberrypi.com,
	jacopo.mondi@ideasonboard.com,
	mchehab@kernel.org,
	robh@kernel.org,
	krzysztof.kozlowski+dt@linaro.org,
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	shawnguo@kernel.org,
	s.hauer@pengutronix.de,
	kernel@pengutronix.de,
	festevam@gmail.com,
	sakari.ailus@linux.intel.com,
	devicetree@vger.kernel.org,
	imx@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	pavel@ucw.cz,
	phone-devel@vger.kernel.org,
	Luis Garcia <git@luigi311.com>
Subject: [PATCH v4 25/25] media: i2c: imx258: Convert to new CCI register access helpers
Date: Sun, 14 Apr 2024 14:35:03 -0600
Message-ID: <20240414203503.18402-26-git@luigi311.com>
In-Reply-To: <20240414203503.18402-1-git@luigi311.com>
References: <20240414203503.18402-1-git@luigi311.com>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

From: Luis Garcia <git@luigi311.com>

Use the new comon CCI register access helpers to replace the private
register access helpers in the imx258 driver.

Signed-off-by: Luis Garcia <git@luigi311.com>
---
 drivers/media/i2c/Kconfig  |   1 +
 drivers/media/i2c/imx258.c | 804 ++++++++++++++++---------------------
 2 files changed, 346 insertions(+), 459 deletions(-)

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index 56f276b920ab..6707b0c3c4eb 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -139,6 +139,7 @@ config VIDEO_IMX219
 
 config VIDEO_IMX258
 	tristate "Sony IMX258 sensor support"
+	select V4L2_CCI_I2C
 	help
 	  This is a Video4Linux2 sensor driver for the Sony
 	  IMX258 camera.
diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
index 65846dff775e..8fc9750e5ec9 100644
--- a/drivers/media/i2c/imx258.c
+++ b/drivers/media/i2c/imx258.c
@@ -8,22 +8,20 @@
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>
+#include <media/v4l2-cci.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-fwnode.h>
 #include <asm/unaligned.h>
 
-#define IMX258_REG_VALUE_08BIT		1
-#define IMX258_REG_VALUE_16BIT		2
-
-#define IMX258_REG_MODE_SELECT		0x0100
+#define IMX258_REG_MODE_SELECT		CCI_REG8(0x0100)
 #define IMX258_MODE_STANDBY		0x00
 #define IMX258_MODE_STREAMING		0x01
 
-#define IMX258_REG_RESET		0x0103
+#define IMX258_REG_RESET		CCI_REG8(0x0103)
 
 /* Chip ID */
-#define IMX258_REG_CHIP_ID		0x0016
+#define IMX258_REG_CHIP_ID		CCI_REG16(0x0016)
 #define IMX258_CHIP_ID			0x0258
 
 /* V_TIMING internal */
@@ -32,13 +30,11 @@
 #define IMX258_VTS_30FPS_VGA		0x034c
 #define IMX258_VTS_MAX			65525
 
-#define IMX258_REG_VTS			0x0340
-
 /* HBLANK control - read only */
 #define IMX258_PPL_DEFAULT		5352
 
 /* Exposure control */
-#define IMX258_REG_EXPOSURE		0x0202
+#define IMX258_REG_EXPOSURE		CCI_REG16(0x0202)
 #define IMX258_EXPOSURE_OFFSET		10
 #define IMX258_EXPOSURE_MIN		4
 #define IMX258_EXPOSURE_STEP		1
@@ -46,38 +42,38 @@
 #define IMX258_EXPOSURE_MAX		(IMX258_VTS_MAX - IMX258_EXPOSURE_OFFSET)
 
 /* Analog gain control */
-#define IMX258_REG_ANALOG_GAIN		0x0204
+#define IMX258_REG_ANALOG_GAIN		CCI_REG16(0x0204)
 #define IMX258_ANA_GAIN_MIN		0
 #define IMX258_ANA_GAIN_MAX		480
 #define IMX258_ANA_GAIN_STEP		1
 #define IMX258_ANA_GAIN_DEFAULT		0x0
 
 /* Digital gain control */
-#define IMX258_REG_GR_DIGITAL_GAIN	0x020e
-#define IMX258_REG_R_DIGITAL_GAIN	0x0210
-#define IMX258_REG_B_DIGITAL_GAIN	0x0212
-#define IMX258_REG_GB_DIGITAL_GAIN	0x0214
+#define IMX258_REG_GR_DIGITAL_GAIN	CCI_REG16(0x020e)
+#define IMX258_REG_R_DIGITAL_GAIN	CCI_REG16(0x0210)
+#define IMX258_REG_B_DIGITAL_GAIN	CCI_REG16(0x0212)
+#define IMX258_REG_GB_DIGITAL_GAIN	CCI_REG16(0x0214)
 #define IMX258_DGTL_GAIN_MIN		0
 #define IMX258_DGTL_GAIN_MAX		4096	/* Max = 0xFFF */
 #define IMX258_DGTL_GAIN_DEFAULT	1024
 #define IMX258_DGTL_GAIN_STEP		1
 
 /* HDR control */
-#define IMX258_REG_HDR			0x0220
+#define IMX258_REG_HDR			CCI_REG8(0x0220)
 #define IMX258_HDR_ON			BIT(0)
-#define IMX258_REG_HDR_RATIO		0x0222
+#define IMX258_REG_HDR_RATIO		CCI_REG8(0x0222)
 #define IMX258_HDR_RATIO_MIN		0
 #define IMX258_HDR_RATIO_MAX		5
 #define IMX258_HDR_RATIO_STEP		1
 #define IMX258_HDR_RATIO_DEFAULT	0x0
 
 /* Test Pattern Control */
-#define IMX258_REG_TEST_PATTERN		0x0600
+#define IMX258_REG_TEST_PATTERN		CCI_REG16(0x0600)
 
-#define IMX258_CLK_BLANK_STOP		0x4040
+#define IMX258_CLK_BLANK_STOP		CCI_REG8(0x4040)
 
 /* Orientation */
-#define REG_MIRROR_FLIP_CONTROL		0x0101
+#define REG_MIRROR_FLIP_CONTROL		CCI_REG8(0x0101)
 #define REG_CONFIG_MIRROR_HFLIP		0x01
 #define REG_CONFIG_MIRROR_VFLIP		0x02
 
@@ -89,14 +85,53 @@
 #define IMX258_PIXEL_ARRAY_WIDTH	4208U
 #define IMX258_PIXEL_ARRAY_HEIGHT	3120U
 
-struct imx258_reg {
-	u16 address;
-	u8 val;
-};
+/* regs */
+#define IMX258_REG_PLL_MULT_DRIV                  CCI_REG8(0x0310)
+#define IMX258_REG_IVTPXCK_DIV                    CCI_REG8(0x0301)
+#define IMX258_REG_IVTSYCK_DIV                    CCI_REG8(0x0303)
+#define IMX258_REG_PREPLLCK_VT_DIV                CCI_REG8(0x0305)
+#define IMX258_REG_IOPPXCK_DIV                    CCI_REG8(0x0309)
+#define IMX258_REG_IOPSYCK_DIV                    CCI_REG8(0x030b)
+#define IMX258_REG_PREPLLCK_OP_DIV                CCI_REG8(0x030d)
+#define IMX258_REG_PHASE_PIX_OUTEN                CCI_REG8(0x3030)
+#define IMX258_REG_PDPIX_DATA_RATE                CCI_REG8(0x3032)
+#define IMX258_REG_SCALE_MODE                     CCI_REG8(0x0401)
+#define IMX258_REG_SCALE_MODE_EXT                 CCI_REG8(0x3038)
+#define IMX258_REG_AF_WINDOW_MODE                 CCI_REG8(0x7bcd)
+#define IMX258_REG_FRM_LENGTH_CTL                 CCI_REG8(0x0350)
+#define IMX258_REG_CSI_LANE_MODE                  CCI_REG8(0x0114)
+#define IMX258_REG_X_EVN_INC                      CCI_REG8(0x0381)
+#define IMX258_REG_X_ODD_INC                      CCI_REG8(0x0383)
+#define IMX258_REG_Y_EVN_INC                      CCI_REG8(0x0385)
+#define IMX258_REG_Y_ODD_INC                      CCI_REG8(0x0387)
+#define IMX258_REG_BINNING_MODE                   CCI_REG8(0x0900)
+#define IMX258_REG_BINNING_TYPE_V                 CCI_REG8(0x0901)
+#define IMX258_REG_FORCE_FD_SUM                   CCI_REG8(0x300d)
+#define IMX258_REG_DIG_CROP_X_OFFSET              CCI_REG16(0x0408)
+#define IMX258_REG_DIG_CROP_Y_OFFSET              CCI_REG16(0x040a)
+#define IMX258_REG_DIG_CROP_IMAGE_WIDTH           CCI_REG16(0x040c)
+#define IMX258_REG_DIG_CROP_IMAGE_HEIGHT          CCI_REG16(0x040e)
+#define IMX258_REG_SCALE_M                        CCI_REG16(0x0404)
+#define IMX258_REG_X_OUT_SIZE                     CCI_REG16(0x034c)
+#define IMX258_REG_Y_OUT_SIZE                     CCI_REG16(0x034e)
+#define IMX258_REG_X_ADD_STA                      CCI_REG16(0x0344)
+#define IMX258_REG_Y_ADD_STA                      CCI_REG16(0x0346)
+#define IMX258_REG_X_ADD_END                      CCI_REG16(0x0348)
+#define IMX258_REG_Y_ADD_END                      CCI_REG16(0x034a)
+#define IMX258_REG_EXCK_FREQ                      CCI_REG16(0x0136)
+#define IMX258_REG_CSI_DT_FMT                     CCI_REG16(0x0112)
+#define IMX258_REG_LINE_LENGTH_PCK                CCI_REG16(0x0342)
+#define IMX258_REG_SCALE_M_EXT                    CCI_REG16(0x303a)
+#define IMX258_REG_FRM_LENGTH_LINES               CCI_REG16(0x0340)
+#define IMX258_REG_FINE_INTEG_TIME                CCI_REG8(0x0200)
+#define IMX258_REG_PLL_IVT_MPY                    CCI_REG16(0x0306)
+#define IMX258_REG_PLL_IOP_MPY                    CCI_REG16(0x030e)
+#define IMX258_REG_REQ_LINK_BIT_RATE_MBPS_H       CCI_REG16(0x0820)
+#define IMX258_REG_REQ_LINK_BIT_RATE_MBPS_L       CCI_REG16(0x0822)
 
 struct imx258_reg_list {
 	u32 num_of_regs;
-	const struct imx258_reg *regs;
+	const struct cci_reg_sequence *regs;
 };
 
 struct imx258_link_cfg {
@@ -143,329 +178,264 @@ struct imx258_mode {
  * To avoid further computation of clock settings, adopt the same per
  * lane data rate when using 2 lanes, thus allowing a maximum of 15fps.
  */
-static const struct imx258_reg mipi_1267mbps_19_2mhz_2l[] = {
-	{ 0x0136, 0x13 },
-	{ 0x0137, 0x33 },
-	{ 0x0301, 0x0A },
-	{ 0x0303, 0x02 },
-	{ 0x0305, 0x03 },
-	{ 0x0306, 0x00 },
-	{ 0x0307, 0xC6 },
-	{ 0x0309, 0x0A },
-	{ 0x030B, 0x01 },
-	{ 0x030D, 0x02 },
-	{ 0x030E, 0x00 },
-	{ 0x030F, 0xD8 },
-	{ 0x0310, 0x00 },
-
-	{ 0x0114, 0x01 },
-	{ 0x0820, 0x09 },
-	{ 0x0821, 0xa6 },
-	{ 0x0822, 0x66 },
-	{ 0x0823, 0x66 },
+static const struct cci_reg_sequence mipi_1267mbps_19_2mhz_2l[] = {
+	{ IMX258_REG_EXCK_FREQ, 0x1333 },
+	{ IMX258_REG_IVTPXCK_DIV, 10 },
+	{ IMX258_REG_IVTSYCK_DIV, 2 },
+	{ IMX258_REG_PREPLLCK_VT_DIV, 3 },
+	{ IMX258_REG_PLL_IVT_MPY, 198 },
+	{ IMX258_REG_IOPPXCK_DIV, 10 },
+	{ IMX258_REG_IOPSYCK_DIV, 1 },
+	{ IMX258_REG_PREPLLCK_OP_DIV, 2 },
+	{ IMX258_REG_PLL_IOP_MPY, 216 },
+	{ IMX258_REG_PLL_MULT_DRIV, 0 },
+
+	{ IMX258_REG_CSI_LANE_MODE, 1 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_H, 1267 * 2 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_L, 0 },
 };
 
-static const struct imx258_reg mipi_1267mbps_19_2mhz_4l[] = {
-	{ 0x0136, 0x13 },
-	{ 0x0137, 0x33 },
-	{ 0x0301, 0x05 },
-	{ 0x0303, 0x02 },
-	{ 0x0305, 0x03 },
-	{ 0x0306, 0x00 },
-	{ 0x0307, 0xC6 },
-	{ 0x0309, 0x0A },
-	{ 0x030B, 0x01 },
-	{ 0x030D, 0x02 },
-	{ 0x030E, 0x00 },
-	{ 0x030F, 0xD8 },
-	{ 0x0310, 0x00 },
-
-	{ 0x0114, 0x03 },
-	{ 0x0820, 0x13 },
-	{ 0x0821, 0x4C },
-	{ 0x0822, 0xCC },
-	{ 0x0823, 0xCC },
+static const struct cci_reg_sequence mipi_1267mbps_19_2mhz_4l[] = {
+	{ IMX258_REG_EXCK_FREQ, 0x1333 },
+	{ IMX258_REG_IVTPXCK_DIV, 5 },
+	{ IMX258_REG_IVTSYCK_DIV, 2 },
+	{ IMX258_REG_PREPLLCK_VT_DIV, 3 },
+	{ IMX258_REG_PLL_IVT_MPY, 198 },
+	{ IMX258_REG_IOPPXCK_DIV, 10 },
+	{ IMX258_REG_IOPSYCK_DIV, 1 },
+	{ IMX258_REG_PREPLLCK_OP_DIV, 2 },
+	{ IMX258_REG_PLL_IOP_MPY, 216 },
+	{ IMX258_REG_PLL_MULT_DRIV, 0 },
+
+	{ IMX258_REG_CSI_LANE_MODE, 3 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_H, 1267 * 4 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_L, 0 },
 };
 
-static const struct imx258_reg mipi_1272mbps_24mhz_2l[] = {
-	{ 0x0136, 0x18 },
-	{ 0x0137, 0x00 },
-	{ 0x0301, 0x0a },
-	{ 0x0303, 0x02 },
-	{ 0x0305, 0x04 },
-	{ 0x0306, 0x00 },
-	{ 0x0307, 0xD4 },
-	{ 0x0309, 0x0A },
-	{ 0x030B, 0x01 },
-	{ 0x030D, 0x02 },
-	{ 0x030E, 0x00 },
-	{ 0x030F, 0xD8 },
-	{ 0x0310, 0x00 },
-
-	{ 0x0114, 0x01 },
-	{ 0x0820, 0x13 },
-	{ 0x0821, 0x4C },
-	{ 0x0822, 0xCC },
-	{ 0x0823, 0xCC },
+static const struct cci_reg_sequence mipi_1272mbps_24mhz_2l[] = {
+	{ IMX258_REG_EXCK_FREQ, 0x1800 },
+	{ IMX258_REG_IVTPXCK_DIV, 10 },
+	{ IMX258_REG_IVTSYCK_DIV, 2 },
+	{ IMX258_REG_PREPLLCK_VT_DIV, 4 },
+	{ IMX258_REG_PLL_IVT_MPY, 212 },
+	{ IMX258_REG_IOPPXCK_DIV, 10 },
+	{ IMX258_REG_IOPSYCK_DIV, 1 },
+	{ IMX258_REG_PREPLLCK_OP_DIV, 2 },
+	{ IMX258_REG_PLL_IOP_MPY, 216 },
+	{ IMX258_REG_PLL_MULT_DRIV, 0 },
+
+	{ IMX258_REG_CSI_LANE_MODE, 1 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_H, 1272 * 2 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_L, 0 },
 };
 
-static const struct imx258_reg mipi_1272mbps_24mhz_4l[] = {
-	{ 0x0136, 0x18 },
-	{ 0x0137, 0x00 },
-	{ 0x0301, 0x05 },
-	{ 0x0303, 0x02 },
-	{ 0x0305, 0x04 },
-	{ 0x0306, 0x00 },
-	{ 0x0307, 0xD4 },
-	{ 0x0309, 0x0A },
-	{ 0x030B, 0x01 },
-	{ 0x030D, 0x02 },
-	{ 0x030E, 0x00 },
-	{ 0x030F, 0xD8 },
-	{ 0x0310, 0x00 },
-
-	{ 0x0114, 0x03 },
-	{ 0x0820, 0x13 },
-	{ 0x0821, 0xE0 },
-	{ 0x0822, 0x00 },
-	{ 0x0823, 0x00 },
+static const struct cci_reg_sequence mipi_1272mbps_24mhz_4l[] = {
+	{ IMX258_REG_EXCK_FREQ, 0x1800 },
+	{ IMX258_REG_IVTPXCK_DIV, 5 },
+	{ IMX258_REG_IVTSYCK_DIV, 2 },
+	{ IMX258_REG_PREPLLCK_VT_DIV, 4 },
+	{ IMX258_REG_PLL_IVT_MPY, 212 },
+	{ IMX258_REG_IOPPXCK_DIV, 10 },
+	{ IMX258_REG_IOPSYCK_DIV, 1 },
+	{ IMX258_REG_PREPLLCK_OP_DIV, 2 },
+	{ IMX258_REG_PLL_IOP_MPY, 216 },
+	{ IMX258_REG_PLL_MULT_DRIV, 0 },
+
+	{ IMX258_REG_CSI_LANE_MODE, 3 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_H, 1272 * 4 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_L, 0 },
 };
 
-static const struct imx258_reg mipi_640mbps_19_2mhz_2l[] = {
-	{ 0x0136, 0x13 },
-	{ 0x0137, 0x33 },
-	{ 0x0301, 0x05 },
-	{ 0x0303, 0x02 },
-	{ 0x0305, 0x03 },
-	{ 0x0306, 0x00 },
-	{ 0x0307, 0x64 },
-	{ 0x0309, 0x0A },
-	{ 0x030B, 0x01 },
-	{ 0x030D, 0x02 },
-	{ 0x030E, 0x00 },
-	{ 0x030F, 0xD8 },
-	{ 0x0310, 0x00 },
-
-	{ 0x0114, 0x01 },
-	{ 0x0820, 0x05 },
-	{ 0x0821, 0x00 },
-	{ 0x0822, 0x00 },
-	{ 0x0823, 0x00 },
+static const struct cci_reg_sequence mipi_640mbps_19_2mhz_2l[] = {
+	{ IMX258_REG_EXCK_FREQ, 0x1333 },
+	{ IMX258_REG_IVTPXCK_DIV, 5 },
+	{ IMX258_REG_IVTSYCK_DIV, 2 },
+	{ IMX258_REG_PREPLLCK_VT_DIV, 3 },
+	{ IMX258_REG_PLL_IVT_MPY, 100 },
+	{ IMX258_REG_IOPPXCK_DIV, 10 },
+	{ IMX258_REG_IOPSYCK_DIV, 1 },
+	{ IMX258_REG_PREPLLCK_OP_DIV, 2 },
+	{ IMX258_REG_PLL_IOP_MPY, 216 },
+	{ IMX258_REG_PLL_MULT_DRIV, 0 },
+
+	{ IMX258_REG_CSI_LANE_MODE, 1 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_H, 640 * 2 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_L, 0 },
 };
 
-static const struct imx258_reg mipi_640mbps_19_2mhz_4l[] = {
-	{ 0x0136, 0x13 },
-	{ 0x0137, 0x33 },
-	{ 0x0301, 0x05 },
-	{ 0x0303, 0x02 },
-	{ 0x0305, 0x03 },
-	{ 0x0306, 0x00 },
-	{ 0x0307, 0x64 },
-	{ 0x0309, 0x0A },
-	{ 0x030B, 0x01 },
-	{ 0x030D, 0x02 },
-	{ 0x030E, 0x00 },
-	{ 0x030F, 0xD8 },
-	{ 0x0310, 0x00 },
-
-	{ 0x0114, 0x03 },
-	{ 0x0820, 0x0A },
-	{ 0x0821, 0x00 },
-	{ 0x0822, 0x00 },
-	{ 0x0823, 0x00 },
+static const struct cci_reg_sequence mipi_640mbps_19_2mhz_4l[] = {
+	{ IMX258_REG_EXCK_FREQ, 0x1333 },
+	{ IMX258_REG_IVTPXCK_DIV, 5 },
+	{ IMX258_REG_IVTSYCK_DIV, 2 },
+	{ IMX258_REG_PREPLLCK_VT_DIV, 3 },
+	{ IMX258_REG_PLL_IVT_MPY, 100 },
+	{ IMX258_REG_IOPPXCK_DIV, 10 },
+	{ IMX258_REG_IOPSYCK_DIV, 1 },
+	{ IMX258_REG_PREPLLCK_OP_DIV, 2 },
+	{ IMX258_REG_PLL_IOP_MPY, 216 },
+	{ IMX258_REG_PLL_MULT_DRIV, 0 },
+
+	{ IMX258_REG_CSI_LANE_MODE, 3 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_H, 640 * 4 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_L, 0 },
 };
 
-static const struct imx258_reg mipi_642mbps_24mhz_2l[] = {
-	{ 0x0136, 0x18 },
-	{ 0x0137, 0x00 },
-	{ 0x0301, 0x05 },
-	{ 0x0303, 0x02 },
-	{ 0x0305, 0x04 },
-	{ 0x0306, 0x00 },
-	{ 0x0307, 0x6B },
-	{ 0x0309, 0x0A },
-	{ 0x030B, 0x01 },
-	{ 0x030D, 0x02 },
-	{ 0x030E, 0x00 },
-	{ 0x030F, 0xD8 },
-	{ 0x0310, 0x00 },
-
-	{ 0x0114, 0x01 },
-	{ 0x0820, 0x0A },
-	{ 0x0821, 0x00 },
-	{ 0x0822, 0x00 },
-	{ 0x0823, 0x00 },
+static const struct cci_reg_sequence mipi_642mbps_24mhz_2l[] = {
+	{ IMX258_REG_EXCK_FREQ, 0x1800 },
+	{ IMX258_REG_IVTPXCK_DIV, 5 },
+	{ IMX258_REG_IVTSYCK_DIV, 2 },
+	{ IMX258_REG_PREPLLCK_VT_DIV, 4 },
+	{ IMX258_REG_PLL_IVT_MPY, 107 },
+	{ IMX258_REG_IOPPXCK_DIV, 10 },
+	{ IMX258_REG_IOPSYCK_DIV, 1 },
+	{ IMX258_REG_PREPLLCK_OP_DIV, 2 },
+	{ IMX258_REG_PLL_IOP_MPY, 216 },
+	{ IMX258_REG_PLL_MULT_DRIV, 0 },
+
+	{ IMX258_REG_CSI_LANE_MODE, 1 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_H, 642 * 2 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_L, 0 },
 };
 
-static const struct imx258_reg mipi_642mbps_24mhz_4l[] = {
-	{ 0x0136, 0x18 },
-	{ 0x0137, 0x00 },
-	{ 0x0301, 0x05 },
-	{ 0x0303, 0x02 },
-	{ 0x0305, 0x04 },
-	{ 0x0306, 0x00 },
-	{ 0x0307, 0x6B },
-	{ 0x0309, 0x0A },
-	{ 0x030B, 0x01 },
-	{ 0x030D, 0x02 },
-	{ 0x030E, 0x00 },
-	{ 0x030F, 0xD8 },
-	{ 0x0310, 0x00 },
-
-	{ 0x0114, 0x03 },
-	{ 0x0820, 0x0A },
-	{ 0x0821, 0x00 },
-	{ 0x0822, 0x00 },
-	{ 0x0823, 0x00 },
+static const struct cci_reg_sequence mipi_642mbps_24mhz_4l[] = {
+	{ IMX258_REG_EXCK_FREQ, 0x1800 },
+	{ IMX258_REG_IVTPXCK_DIV, 5 },
+	{ IMX258_REG_IVTSYCK_DIV, 2 },
+	{ IMX258_REG_PREPLLCK_VT_DIV, 4 },
+	{ IMX258_REG_PLL_IVT_MPY, 107 },
+	{ IMX258_REG_IOPPXCK_DIV, 10 },
+	{ IMX258_REG_IOPSYCK_DIV, 1 },
+	{ IMX258_REG_PREPLLCK_OP_DIV, 2 },
+	{ IMX258_REG_PLL_IOP_MPY, 216 },
+	{ IMX258_REG_PLL_MULT_DRIV, 0 },
+
+	{ IMX258_REG_CSI_LANE_MODE, 3 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_H, 642 * 4 },
+	{ IMX258_REG_REQ_LINK_BIT_RATE_MBPS_L, 0 },
 };
 
-static const struct imx258_reg mode_common_regs[] = {
-	{ 0x3051, 0x00 },
-	{ 0x6B11, 0xCF },
-	{ 0x7FF0, 0x08 },
-	{ 0x7FF1, 0x0F },
-	{ 0x7FF2, 0x08 },
-	{ 0x7FF3, 0x1B },
-	{ 0x7FF4, 0x23 },
-	{ 0x7FF5, 0x60 },
-	{ 0x7FF6, 0x00 },
-	{ 0x7FF7, 0x01 },
-	{ 0x7FF8, 0x00 },
-	{ 0x7FF9, 0x78 },
-	{ 0x7FFA, 0x00 },
-	{ 0x7FFB, 0x00 },
-	{ 0x7FFC, 0x00 },
-	{ 0x7FFD, 0x00 },
-	{ 0x7FFE, 0x00 },
-	{ 0x7FFF, 0x03 },
-	{ 0x7F76, 0x03 },
-	{ 0x7F77, 0xFE },
-	{ 0x7FA8, 0x03 },
-	{ 0x7FA9, 0xFE },
-	{ 0x7B24, 0x81 },
-	{ 0x6564, 0x07 },
-	{ 0x6B0D, 0x41 },
-	{ 0x653D, 0x04 },
-	{ 0x6B05, 0x8C },
-	{ 0x6B06, 0xF9 },
-	{ 0x6B08, 0x65 },
-	{ 0x6B09, 0xFC },
-	{ 0x6B0A, 0xCF },
-	{ 0x6B0B, 0xD2 },
-	{ 0x6700, 0x0E },
-	{ 0x6707, 0x0E },
-	{ 0x9104, 0x00 },
-	{ 0x4648, 0x7F },
-	{ 0x7420, 0x00 },
-	{ 0x7421, 0x1C },
-	{ 0x7422, 0x00 },
-	{ 0x7423, 0xD7 },
-	{ 0x5F04, 0x00 },
-	{ 0x5F05, 0xED },
-	{ 0x0112, 0x0A },
-	{ 0x0113, 0x0A },
-	{ 0x0342, 0x14 },
-	{ 0x0343, 0xE8 },
-	{ 0x0344, 0x00 },
-	{ 0x0345, 0x00 },
-	{ 0x0346, 0x00 },
-	{ 0x0347, 0x00 },
-	{ 0x0348, 0x10 },
-	{ 0x0349, 0x6F },
-	{ 0x034A, 0x0C },
-	{ 0x034B, 0x2F },
-	{ 0x0381, 0x01 },
-	{ 0x0383, 0x01 },
-	{ 0x0385, 0x01 },
-	{ 0x0387, 0x01 },
-	{ 0x0404, 0x00 },
-	{ 0x0408, 0x00 },
-	{ 0x0409, 0x00 },
-	{ 0x040A, 0x00 },
-	{ 0x040B, 0x00 },
-	{ 0x040C, 0x10 },
-	{ 0x040D, 0x70 },
-	{ 0x3038, 0x00 },
-	{ 0x303A, 0x00 },
-	{ 0x303B, 0x10 },
-	{ 0x300D, 0x00 },
-	{ 0x0350, 0x00 },
-	{ 0x0204, 0x00 },
-	{ 0x0205, 0x00 },
-	{ 0x020E, 0x01 },
-	{ 0x020F, 0x00 },
-	{ 0x0210, 0x01 },
-	{ 0x0211, 0x00 },
-	{ 0x0212, 0x01 },
-	{ 0x0213, 0x00 },
-	{ 0x0214, 0x01 },
-	{ 0x0215, 0x00 },
-	{ 0x7BCD, 0x00 },
-	{ 0x94DC, 0x20 },
-	{ 0x94DD, 0x20 },
-	{ 0x94DE, 0x20 },
-	{ 0x95DC, 0x20 },
-	{ 0x95DD, 0x20 },
-	{ 0x95DE, 0x20 },
-	{ 0x7FB0, 0x00 },
-	{ 0x9010, 0x3E },
-	{ 0x9419, 0x50 },
-	{ 0x941B, 0x50 },
-	{ 0x9519, 0x50 },
-	{ 0x951B, 0x50 },
-	{ 0x3030, 0x00 },
-	{ 0x3032, 0x00 },
-	{ 0x0220, 0x00 },
+static const struct cci_reg_sequence mode_common_regs[] = {
+	{ CCI_REG8(0x3051), 0x00 },
+	{ CCI_REG8(0x6B11), 0xCF },
+	{ CCI_REG8(0x7FF0), 0x08 },
+	{ CCI_REG8(0x7FF1), 0x0F },
+	{ CCI_REG8(0x7FF2), 0x08 },
+	{ CCI_REG8(0x7FF3), 0x1B },
+	{ CCI_REG8(0x7FF4), 0x23 },
+	{ CCI_REG8(0x7FF5), 0x60 },
+	{ CCI_REG8(0x7FF6), 0x00 },
+	{ CCI_REG8(0x7FF7), 0x01 },
+	{ CCI_REG8(0x7FF8), 0x00 },
+	{ CCI_REG8(0x7FF9), 0x78 },
+	{ CCI_REG8(0x7FFA), 0x00 },
+	{ CCI_REG8(0x7FFB), 0x00 },
+	{ CCI_REG8(0x7FFC), 0x00 },
+	{ CCI_REG8(0x7FFD), 0x00 },
+	{ CCI_REG8(0x7FFE), 0x00 },
+	{ CCI_REG8(0x7FFF), 0x03 },
+	{ CCI_REG8(0x7F76), 0x03 },
+	{ CCI_REG8(0x7F77), 0xFE },
+	{ CCI_REG8(0x7FA8), 0x03 },
+	{ CCI_REG8(0x7FA9), 0xFE },
+	{ CCI_REG8(0x7B24), 0x81 },
+	{ CCI_REG8(0x6564), 0x07 },
+	{ CCI_REG8(0x6B0D), 0x41 },
+	{ CCI_REG8(0x653D), 0x04 },
+	{ CCI_REG8(0x6B05), 0x8C },
+	{ CCI_REG8(0x6B06), 0xF9 },
+	{ CCI_REG8(0x6B08), 0x65 },
+	{ CCI_REG8(0x6B09), 0xFC },
+	{ CCI_REG8(0x6B0A), 0xCF },
+	{ CCI_REG8(0x6B0B), 0xD2 },
+	{ CCI_REG8(0x6700), 0x0E },
+	{ CCI_REG8(0x6707), 0x0E },
+	{ CCI_REG8(0x9104), 0x00 },
+	{ CCI_REG8(0x4648), 0x7F },
+	{ CCI_REG8(0x7420), 0x00 },
+	{ CCI_REG8(0x7421), 0x1C },
+	{ CCI_REG8(0x7422), 0x00 },
+	{ CCI_REG8(0x7423), 0xD7 },
+	{ CCI_REG8(0x5F04), 0x00 },
+	{ CCI_REG8(0x5F05), 0xED },
+	{IMX258_REG_CSI_DT_FMT, 0x0a0a},
+	{IMX258_REG_LINE_LENGTH_PCK, 5352},
+	{IMX258_REG_X_ADD_STA, 0},
+	{IMX258_REG_Y_ADD_STA, 0},
+	{IMX258_REG_X_ADD_END, 4207},
+	{IMX258_REG_Y_ADD_END, 3119},
+	{IMX258_REG_X_EVN_INC, 1},
+	{IMX258_REG_X_ODD_INC, 1},
+	{IMX258_REG_Y_EVN_INC, 1},
+	{IMX258_REG_Y_ODD_INC, 1},
+	{IMX258_REG_DIG_CROP_X_OFFSET, 0},
+	{IMX258_REG_DIG_CROP_Y_OFFSET, 0},
+	{IMX258_REG_DIG_CROP_IMAGE_WIDTH, 4208},
+	{IMX258_REG_SCALE_MODE_EXT, 0},
+	{IMX258_REG_SCALE_M_EXT, 16},
+	{IMX258_REG_FORCE_FD_SUM, 0},
+	{IMX258_REG_FRM_LENGTH_CTL, 0},
+	{IMX258_REG_ANALOG_GAIN, 0},
+	{IMX258_REG_GR_DIGITAL_GAIN, 256},
+	{IMX258_REG_R_DIGITAL_GAIN, 256},
+	{IMX258_REG_B_DIGITAL_GAIN, 256},
+	{IMX258_REG_GB_DIGITAL_GAIN, 256},
+	{IMX258_REG_AF_WINDOW_MODE, 0},
+	{ CCI_REG8(0x94DC), 0x20 },
+	{ CCI_REG8(0x94DD), 0x20 },
+	{ CCI_REG8(0x94DE), 0x20 },
+	{ CCI_REG8(0x95DC), 0x20 },
+	{ CCI_REG8(0x95DD), 0x20 },
+	{ CCI_REG8(0x95DE), 0x20 },
+	{ CCI_REG8(0x7FB0), 0x00 },
+	{ CCI_REG8(0x9010), 0x3E },
+	{ CCI_REG8(0x9419), 0x50 },
+	{ CCI_REG8(0x941B), 0x50 },
+	{ CCI_REG8(0x9519), 0x50 },
+	{ CCI_REG8(0x951B), 0x50 },
+	{IMX258_REG_PHASE_PIX_OUTEN, 0},
+	{IMX258_REG_PDPIX_DATA_RATE, 0},
+	{IMX258_REG_HDR, 0},
 };
 
-static const struct imx258_reg mode_4208x3120_regs[] = {
-	{ 0x0900, 0x00 },
-	{ 0x0901, 0x11 },
-	{ 0x0401, 0x00 },
-	{ 0x0405, 0x10 },
-	{ 0x040E, 0x0C },
-	{ 0x040F, 0x30 },
-	{ 0x034C, 0x10 },
-	{ 0x034D, 0x70 },
-	{ 0x034E, 0x0C },
-	{ 0x034F, 0x30 },
+static const struct cci_reg_sequence mode_4208x3120_regs[] = {
+	{IMX258_REG_BINNING_MODE, 0},
+	{IMX258_REG_BINNING_TYPE_V, 0x11},
+	{IMX258_REG_SCALE_MODE, 0},
+	{IMX258_REG_SCALE_M, 16},
+	{IMX258_REG_DIG_CROP_IMAGE_HEIGHT, 3120},
+	{IMX258_REG_X_OUT_SIZE, 4208},
+	{IMX258_REG_Y_OUT_SIZE, 3120},
 };
 
-static const struct imx258_reg mode_2104_1560_regs[] = {
-	{ 0x0900, 0x01 },
-	{ 0x0901, 0x12 },
-	{ 0x0401, 0x01 },
-	{ 0x0405, 0x20 },
-	{ 0x040E, 0x06 },
-	{ 0x040F, 0x18 },
-	{ 0x034C, 0x08 },
-	{ 0x034D, 0x38 },
-	{ 0x034E, 0x06 },
-	{ 0x034F, 0x18 },
+static const struct cci_reg_sequence mode_2104_1560_regs[] = {
+	{IMX258_REG_BINNING_MODE, 1},
+	{IMX258_REG_BINNING_TYPE_V, 0x12},
+	{IMX258_REG_SCALE_MODE, 1},
+	{IMX258_REG_SCALE_M, 32},
+	{IMX258_REG_DIG_CROP_IMAGE_HEIGHT, 1560},
+	{IMX258_REG_X_OUT_SIZE, 2104},
+	{IMX258_REG_Y_OUT_SIZE, 1560},
 };
 
-static const struct imx258_reg mode_1048_780_regs[] = {
-	{ 0x0900, 0x01 },
-	{ 0x0901, 0x14 },
-	{ 0x0401, 0x01 },
-	{ 0x0405, 0x40 },
-	{ 0x040E, 0x03 },
-	{ 0x040F, 0x0C },
-	{ 0x034C, 0x04 },
-	{ 0x034D, 0x18 },
-	{ 0x034E, 0x03 },
-	{ 0x034F, 0x0C },
+static const struct cci_reg_sequence mode_1048_780_regs[] = {
+	{IMX258_REG_BINNING_MODE, 1},
+	{IMX258_REG_BINNING_TYPE_V, 0x14},
+	{IMX258_REG_SCALE_MODE, 1},
+	{IMX258_REG_SCALE_M, 64},
+	{IMX258_REG_DIG_CROP_IMAGE_HEIGHT, 780},
+	{IMX258_REG_X_OUT_SIZE, 1048},
+	{IMX258_REG_Y_OUT_SIZE, 780},
 };
 
 struct imx258_variant_cfg {
-	const struct imx258_reg *regs;
+	const struct cci_reg_sequence *regs;
 	unsigned int num_regs;
 };
 
-static const struct imx258_reg imx258_cfg_regs[] = {
-	{ 0x3052, 0x00 },
-	{ 0x4E21, 0x14 },
-	{ 0x7B25, 0x00 },
+static const struct cci_reg_sequence imx258_cfg_regs[] = {
+	{ CCI_REG8(0x3052), 0x00 },
+	{ CCI_REG8(0x4E21), 0x14 },
+	{ CCI_REG8(0x7B25), 0x00 },
 };
 
 static const struct imx258_variant_cfg imx258_cfg = {
@@ -473,10 +443,10 @@ static const struct imx258_variant_cfg imx258_cfg = {
 	.num_regs = ARRAY_SIZE(imx258_cfg_regs),
 };
 
-static const struct imx258_reg imx258_pdaf_cfg_regs[] = {
-	{ 0x3052, 0x01 },
-	{ 0x4E21, 0x10 },
-	{ 0x7B25, 0x01 },
+static const struct cci_reg_sequence imx258_pdaf_cfg_regs[] = {
+	{ CCI_REG8(0x3052), 0x01 },
+	{ CCI_REG8(0x4E21), 0x10 },
+	{ CCI_REG8(0x7B25), 0x01 },
 };
 
 static const struct imx258_variant_cfg imx258_pdaf_cfg = {
@@ -677,6 +647,7 @@ static const struct imx258_mode supported_modes[] = {
 struct imx258 {
 	struct v4l2_subdev sd;
 	struct media_pad pad;
+	struct regmap *regmap;
 
 	const struct imx258_variant_cfg *variant_cfg;
 
@@ -717,80 +688,6 @@ static inline struct imx258 *to_imx258(struct v4l2_subdev *_sd)
 	return container_of(_sd, struct imx258, sd);
 }
 
-/* Read registers up to 2 at a time */
-static int imx258_read_reg(struct imx258 *imx258, u16 reg, u32 len, u32 *val)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
-	struct i2c_msg msgs[2];
-	u8 addr_buf[2] = { reg >> 8, reg & 0xff };
-	u8 data_buf[4] = { 0, };
-	int ret;
-
-	if (len > 4)
-		return -EINVAL;
-
-	/* Write register address */
-	msgs[0].addr = client->addr;
-	msgs[0].flags = 0;
-	msgs[0].len = ARRAY_SIZE(addr_buf);
-	msgs[0].buf = addr_buf;
-
-	/* Read data from register */
-	msgs[1].addr = client->addr;
-	msgs[1].flags = I2C_M_RD;
-	msgs[1].len = len;
-	msgs[1].buf = &data_buf[4 - len];
-
-	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
-	if (ret != ARRAY_SIZE(msgs))
-		return -EIO;
-
-	*val = get_unaligned_be32(data_buf);
-
-	return 0;
-}
-
-/* Write registers up to 2 at a time */
-static int imx258_write_reg(struct imx258 *imx258, u16 reg, u32 len, u32 val)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
-	u8 buf[6];
-
-	if (len > 4)
-		return -EINVAL;
-
-	put_unaligned_be16(reg, buf);
-	put_unaligned_be32(val << (8 * (4 - len)), buf + 2);
-	if (i2c_master_send(client, buf, len + 2) != len + 2)
-		return -EIO;
-
-	return 0;
-}
-
-/* Write a list of registers */
-static int imx258_write_regs(struct imx258 *imx258,
-			     const struct imx258_reg *regs, u32 len)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
-	unsigned int i;
-	int ret;
-
-	for (i = 0; i < len; i++) {
-		ret = imx258_write_reg(imx258, regs[i].address, 1,
-					regs[i].val);
-		if (ret) {
-			dev_err_ratelimited(
-				&client->dev,
-				"Failed to write reg 0x%4.4x. error = %d\n",
-				regs[i].address, ret);
-
-			return ret;
-		}
-	}
-
-	return 0;
-}
-
 /* Get bayer order based on flip setting. */
 static u32 imx258_get_format_code(const struct imx258 *imx258)
 {
@@ -828,28 +725,20 @@ static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
 	return 0;
 }
 
-static int imx258_update_digital_gain(struct imx258 *imx258, u32 len, u32 val)
+static int imx258_update_digital_gain(struct imx258 *imx258, u32 val)
 {
 	int ret;
 
-	ret = imx258_write_reg(imx258, IMX258_REG_GR_DIGITAL_GAIN,
-				IMX258_REG_VALUE_16BIT,
-				val);
+	ret = cci_write(imx258->regmap, IMX258_REG_GR_DIGITAL_GAIN, val, NULL);
 	if (ret)
 		return ret;
-	ret = imx258_write_reg(imx258, IMX258_REG_GB_DIGITAL_GAIN,
-				IMX258_REG_VALUE_16BIT,
-				val);
+	ret = cci_write(imx258->regmap, IMX258_REG_GB_DIGITAL_GAIN, val, NULL);
 	if (ret)
 		return ret;
-	ret = imx258_write_reg(imx258, IMX258_REG_R_DIGITAL_GAIN,
-				IMX258_REG_VALUE_16BIT,
-				val);
+	ret = cci_write(imx258->regmap, IMX258_REG_R_DIGITAL_GAIN, val, NULL);
 	if (ret)
 		return ret;
-	ret = imx258_write_reg(imx258, IMX258_REG_B_DIGITAL_GAIN,
-				IMX258_REG_VALUE_16BIT,
-				val);
+	ret = cci_write(imx258->regmap, IMX258_REG_B_DIGITAL_GAIN, val, NULL);
 	if (ret)
 		return ret;
 	return 0;
@@ -891,53 +780,45 @@ static int imx258_set_ctrl(struct v4l2_ctrl *ctrl)
 
 	switch (ctrl->id) {
 	case V4L2_CID_ANALOGUE_GAIN:
-		ret = imx258_write_reg(imx258, IMX258_REG_ANALOG_GAIN,
-				IMX258_REG_VALUE_16BIT,
-				ctrl->val);
+		ret = cci_write(imx258->regmap, IMX258_REG_ANALOG_GAIN,
+				ctrl->val, NULL);
 		break;
 	case V4L2_CID_EXPOSURE:
-		ret = imx258_write_reg(imx258, IMX258_REG_EXPOSURE,
-				IMX258_REG_VALUE_16BIT,
-				ctrl->val);
+		ret = cci_write(imx258->regmap, IMX258_REG_EXPOSURE,
+				ctrl->val, NULL);
 		break;
 	case V4L2_CID_DIGITAL_GAIN:
-		ret = imx258_update_digital_gain(imx258, IMX258_REG_VALUE_16BIT,
-				ctrl->val);
+		ret = imx258_update_digital_gain(imx258, ctrl->val);
 		break;
 	case V4L2_CID_TEST_PATTERN:
-		ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN,
-				IMX258_REG_VALUE_16BIT,
-				ctrl->val);
+		ret = cci_write(imx258->regmap, IMX258_REG_TEST_PATTERN,
+				ctrl->val, NULL);
 		break;
 	case V4L2_CID_WIDE_DYNAMIC_RANGE:
 		if (!ctrl->val) {
-			ret = imx258_write_reg(imx258, IMX258_REG_HDR,
-					       IMX258_REG_VALUE_08BIT,
-					       IMX258_HDR_RATIO_MIN);
+			ret = cci_write(imx258->regmap, IMX258_REG_HDR,
+					IMX258_HDR_RATIO_MIN, NULL);
 		} else {
-			ret = imx258_write_reg(imx258, IMX258_REG_HDR,
-					       IMX258_REG_VALUE_08BIT,
-					       IMX258_HDR_ON);
+			ret = cci_write(imx258->regmap, IMX258_REG_HDR,
+					IMX258_HDR_ON, NULL);
 			if (ret)
 				break;
-			ret = imx258_write_reg(imx258, IMX258_REG_HDR_RATIO,
-					       IMX258_REG_VALUE_08BIT,
-					       BIT(IMX258_HDR_RATIO_MAX));
+			ret = cci_write(imx258->regmap, IMX258_REG_HDR_RATIO,
+					BIT(IMX258_HDR_RATIO_MAX), NULL);
 		}
 		break;
 	case V4L2_CID_VBLANK:
-		ret = imx258_write_reg(imx258, IMX258_REG_VTS,
-				       IMX258_REG_VALUE_16BIT,
-				       imx258->cur_mode->height + ctrl->val);
+		ret = cci_write(imx258->regmap, IMX258_REG_FRM_LENGTH_LINES,
+				imx258->cur_mode->height + ctrl->val, NULL);
 		break;
 	case V4L2_CID_VFLIP:
 	case V4L2_CID_HFLIP:
-		ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL,
-				       IMX258_REG_VALUE_08BIT,
-				       (imx258->hflip->val ?
-					REG_CONFIG_MIRROR_HFLIP : 0) |
-				       (imx258->vflip->val ?
-					REG_CONFIG_MIRROR_VFLIP : 0));
+		ret = cci_write(imx258->regmap, REG_MIRROR_FLIP_CONTROL,
+				(imx258->hflip->val ?
+				 REG_CONFIG_MIRROR_HFLIP : 0) |
+				(imx258->vflip->val ?
+				 REG_CONFIG_MIRROR_VFLIP : 0),
+				NULL);
 		break;
 	default:
 		dev_info(&client->dev,
@@ -1147,8 +1028,7 @@ static int imx258_start_streaming(struct imx258 *imx258)
 	const struct imx258_link_freq_config *link_freq_cfg;
 	int ret, link_freq_index;
 
-	ret = imx258_write_reg(imx258, IMX258_REG_RESET, IMX258_REG_VALUE_08BIT,
-			       0x01);
+	ret = cci_write(imx258->regmap, IMX258_REG_RESET, 0x01, NULL);
 	if (ret) {
 		dev_err(&client->dev, "%s failed to reset sensor\n", __func__);
 		return ret;
@@ -1162,30 +1042,30 @@ static int imx258_start_streaming(struct imx258 *imx258)
 	link_freq_cfg = &imx258->link_freq_configs[link_freq_index];
 
 	reg_list = &link_freq_cfg->link_cfg[imx258->lane_mode_idx].reg_list;
-	ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs);
+	ret = cci_multi_reg_write(imx258->regmap, reg_list->regs, reg_list->num_of_regs, NULL);
 	if (ret) {
 		dev_err(&client->dev, "%s failed to set plls\n", __func__);
 		return ret;
 	}
 
-	ret = imx258_write_regs(imx258, mode_common_regs,
-				ARRAY_SIZE(mode_common_regs));
+	ret = cci_multi_reg_write(imx258->regmap, mode_common_regs,
+				  ARRAY_SIZE(mode_common_regs), NULL);
 	if (ret) {
 		dev_err(&client->dev, "%s failed to set common regs\n", __func__);
 		return ret;
 	}
 
-	ret = imx258_write_regs(imx258, imx258->variant_cfg->regs,
-				imx258->variant_cfg->num_regs);
+	ret = cci_multi_reg_write(imx258->regmap, imx258->variant_cfg->regs,
+				  imx258->variant_cfg->num_regs, NULL);
 	if (ret) {
 		dev_err(&client->dev, "%s failed to set variant config\n",
 			__func__);
 		return ret;
 	}
 
-	ret = imx258_write_reg(imx258, IMX258_CLK_BLANK_STOP,
-			       IMX258_REG_VALUE_08BIT,
-			       !!(imx258->csi2_flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK));
+	ret = cci_write(imx258->regmap, IMX258_CLK_BLANK_STOP,
+			!!(imx258->csi2_flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK),
+			NULL);
 	if (ret) {
 		dev_err(&client->dev, "%s failed to set clock lane mode\n", __func__);
 		return ret;
@@ -1193,7 +1073,7 @@ static int imx258_start_streaming(struct imx258 *imx258)
 
 	/* Apply default values of current mode */
 	reg_list = &imx258->cur_mode->reg_list;
-	ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs);
+	ret = cci_multi_reg_write(imx258->regmap, reg_list->regs, reg_list->num_of_regs, NULL);
 	if (ret) {
 		dev_err(&client->dev, "%s failed to set mode\n", __func__);
 		return ret;
@@ -1205,9 +1085,8 @@ static int imx258_start_streaming(struct imx258 *imx258)
 		return ret;
 
 	/* set stream on register */
-	return imx258_write_reg(imx258, IMX258_REG_MODE_SELECT,
-				IMX258_REG_VALUE_08BIT,
-				IMX258_MODE_STREAMING);
+	return cci_write(imx258->regmap, IMX258_REG_MODE_SELECT,
+			 IMX258_MODE_STREAMING, NULL);
 }
 
 /* Stop streaming */
@@ -1217,8 +1096,8 @@ static int imx258_stop_streaming(struct imx258 *imx258)
 	int ret;
 
 	/* set stream off register */
-	ret = imx258_write_reg(imx258, IMX258_REG_MODE_SELECT,
-		IMX258_REG_VALUE_08BIT, IMX258_MODE_STANDBY);
+	ret = cci_write(imx258->regmap, IMX258_REG_MODE_SELECT,
+			IMX258_MODE_STANDBY, NULL);
 	if (ret)
 		dev_err(&client->dev, "%s failed to set stream\n", __func__);
 
@@ -1316,10 +1195,10 @@ static int imx258_identify_module(struct imx258 *imx258)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
 	int ret;
-	u32 val;
+	u64 val;
 
-	ret = imx258_read_reg(imx258, IMX258_REG_CHIP_ID,
-			      IMX258_REG_VALUE_16BIT, &val);
+	ret = cci_read(imx258->regmap, IMX258_REG_CHIP_ID,
+		       &val, NULL);
 	if (ret) {
 		dev_err(&client->dev, "failed to read chip id %x\n",
 			IMX258_CHIP_ID);
@@ -1327,7 +1206,7 @@ static int imx258_identify_module(struct imx258 *imx258)
 	}
 
 	if (val != IMX258_CHIP_ID) {
-		dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
+		dev_err(&client->dev, "chip id mismatch: %x!=%llx\n",
 			IMX258_CHIP_ID, val);
 		return -EIO;
 	}
@@ -1507,6 +1386,13 @@ static int imx258_probe(struct i2c_client *client)
 	if (!imx258)
 		return -ENOMEM;
 
+	imx258->regmap = devm_cci_regmap_init_i2c(client, 16);
+	if (IS_ERR(imx258->regmap)) {
+		ret = PTR_ERR(imx258->regmap);
+		dev_err(&client->dev, "failed to initialize CCI: %d\n", ret);
+		return ret;
+	}
+
 	ret = imx258_get_regulators(imx258, client);
 	if (ret)
 		return dev_err_probe(&client->dev, ret,
-- 
2.44.0