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Reviewed-by: Krzysztof Kozlowski Reviewed-by: Laurent Pinchart Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Zhi Mao --- .../bindings/media/i2c/galaxycore,gc08a3.yaml | 112 ++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/galaxycore,= gc08a3.yaml diff --git a/Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.= yaml b/Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.yaml new file mode 100644 index 000000000000..51b8ece09c72 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.yaml @@ -0,0 +1,112 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (c) 2023 MediaTek Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/i2c/galaxycore,gc08a3.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: GalaxyCore gc08a3 1/4" 8M Pixel MIPI CSI-2 sensor + +maintainers: + - Zhi Mao + +description: + The gc08a3 is a raw image sensor with an MIPI CSI-2 image data + interface and CCI (I2C compatible) control bus. The output format + is raw Bayer. + +properties: + compatible: + const: galaxycore,gc08a3 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + dovdd-supply: true + + avdd-supply: true + + dvdd-supply: true + + reset-gpios: + description: Reference to the GPIO connected to the RESETB pin. + maxItems: 1 + + port: + $ref: /schemas/graph.yaml#/$defs/port-base + additionalProperties: false + description: + Output port node, single endpoint describing the CSI-2 transmitter. + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + + properties: + data-lanes: + oneOf: + - items: + - const: 1 + - const: 2 + - const: 3 + - const: 4 + - items: + - const: 1 + - const: 2 + + link-frequencies: true + + required: + - data-lanes + - link-frequencies + + required: + - endpoint + +required: + - compatible + - reg + - clocks + - dovdd-supply + - avdd-supply + - dvdd-supply + - reset-gpios + - port + +additionalProperties: false + +examples: + - | + #include + + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + sensor@31 { + compatible =3D "galaxycore,gc08a3"; + reg =3D <0x31>; + + clocks =3D <&gc08a3_clk>; + + reset-gpios =3D <&pio 19 GPIO_ACTIVE_LOW>; + + avdd-supply =3D <&gc08a3_avdd>; + dovdd-supply =3D <&gc08a3_dovdd>; + dvdd-supply =3D <&gc08a3_dvdd>; + + port { + sensor_out: endpoint { + data-lanes =3D <1 2 3 4>; + link-frequencies =3D /bits/ 64 <336000000 207000000>; + remote-endpoint =3D <&seninf_csi_port_0_in>; + }; + }; + }; + }; + +... --=20 2.25.1 From nobody Sun Nov 10 04:08:29 2024 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 511D72F56; Tue, 27 Feb 2024 01:33:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.61.82.184 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708997604; cv=none; b=GJSnjPNvh9sO2GnMidWlThPBgSdws6ty5nhPbAyYT0G2EW02NmJoI92SXghmBg49d4DKJi1yRvTIhjyzOI2ic6NNKXPvvCAwbnESg9chxFUG+5XsygCJvvFCUg1E71+kkeWnxaTFNgVQicHm9Q1y0eP5ikbM2lB4ZcNiFo710ug= ARC-Message-Signature: i=1; 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Tue, 27 Feb 2024 09:33:13 +0800 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by mtkmbs13n1.mediatek.inc (172.21.101.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Tue, 27 Feb 2024 09:33:11 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Tue, 27 Feb 2024 09:33:10 +0800 From: Zhi Mao To: , , , CC: , , , <10572168@qq.com>, , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v6 2/2] media: i2c: Add GC08A3 image sensor driver Date: Tue, 27 Feb 2024 09:32:21 +0800 Message-ID: <20240227013221.21512-3-zhi.mao@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240227013221.21512-1-zhi.mao@mediatek.com> References: <20240227013221.21512-1-zhi.mao@mediatek.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-MTK: N Content-Type: text/plain; charset="utf-8" Add a V4L2 sub-device driver for Galaxycore GC08A3 image sensor. Signed-off-by: Zhi Mao --- drivers/media/i2c/Kconfig | 10 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/gc08a3.c | 1333 ++++++++++++++++++++++++++++++++++++ 3 files changed, 1344 insertions(+) create mode 100644 drivers/media/i2c/gc08a3.c diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 56f276b920ab..e4da68835683 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -70,6 +70,16 @@ config VIDEO_GC0308 To compile this driver as a module, choose M here: the module will be called gc0308. =20 +config VIDEO_GC08A3 + tristate "GalaxyCore gc08a3 sensor support" + select V4L2_CCI_I2C + help + This is a Video4Linux2 sensor driver for the GalaxyCore gc08a3 + camera. + + To compile this driver as a module, choose M here: the + module will be called gc08a3. + config VIDEO_GC2145 select V4L2_CCI_I2C tristate "GalaxyCore GC2145 sensor support" diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index dfbe6448b549..b82e99ca7578 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -38,6 +38,7 @@ obj-$(CONFIG_VIDEO_DW9768) +=3D dw9768.o obj-$(CONFIG_VIDEO_DW9807_VCM) +=3D dw9807-vcm.o obj-$(CONFIG_VIDEO_ET8EK8) +=3D et8ek8/ obj-$(CONFIG_VIDEO_GC0308) +=3D gc0308.o +obj-$(CONFIG_VIDEO_GC08A3) +=3D gc08a3.o obj-$(CONFIG_VIDEO_GC2145) +=3D gc2145.o obj-$(CONFIG_VIDEO_HI556) +=3D hi556.o obj-$(CONFIG_VIDEO_HI846) +=3D hi846.o diff --git a/drivers/media/i2c/gc08a3.c b/drivers/media/i2c/gc08a3.c new file mode 100644 index 000000000000..ed20cf457520 --- /dev/null +++ b/drivers/media/i2c/gc08a3.c @@ -0,0 +1,1333 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * gc08a3.c - gc08a3 sensor driver + * + * Copyright 2023 MediaTek + * + * Zhi Mao + */ +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#define GC08A3_REG_TEST_PATTERN_EN CCI_REG8(0x008c) +#define GC08A3_REG_TEST_PATTERN_IDX CCI_REG8(0x008d) +#define GC08A3_TEST_PATTERN_EN 0x01 + +#define GC08A3_STREAMING_REG CCI_REG8(0x0100) + +#define GC08A3_FLIP_REG CCI_REG8(0x0101) +#define GC08A3_FLIP_H_MASK BIT(0) +#define GC08A3_FLIP_V_MASK BIT(1) + +#define GC08A3_EXP_REG CCI_REG16(0x0202) +#define GC08A3_EXP_MARGIN 16 +#define GC08A3_EXP_MIN 4 +#define GC08A3_EXP_STEP 1 + +#define GC08A3_AGAIN_REG CCI_REG16(0x0204) +#define GC08A3_AGAIN_MIN 1024 +#define GC08A3_AGAIN_MAX (1024 * 16) +#define GC08A3_AGAIN_STEP 1 + +#define GC08A3_FRAME_LENGTH_REG CCI_REG16(0x0340) +#define GC08A3_VTS_MAX 0xfff0 + +#define GC08A3_REG_CHIP_ID CCI_REG16(0x03f0) +#define GC08A3_CHIP_ID 0x08a3 + +#define GC08A3_NATIVE_WIDTH 3264 +#define GC08A3_NATIVE_HEIGHT 2448 + +#define GC08A3_DEFAULT_CLK_FREQ (24 * HZ_PER_MHZ) +#define GC08A3_MBUS_CODE MEDIA_BUS_FMT_SRGGB10_1X10 +#define GC08A3_DATA_LANES 4 + +#define GC08A3_RGB_DEPTH 10 + +#define GC08A3_SLEEP_US (2 * USEC_PER_MSEC) + +static const char *const gc08a3_test_pattern_menu[] =3D { + "No Pattern", "Solid Black", "Colour Bar", "Solid White", + "Solid Red", "Solid Green", "Solid Blue", "Solid Yellow", +}; + +static const s64 gc08a3_link_freq_menu_items[] =3D { + (336 * HZ_PER_MHZ), + (207 * HZ_PER_MHZ), +}; + +static const char *const gc08a3_supply_name[] =3D { + "avdd", + "dvdd", + "dovdd", +}; + +struct gc08a3 { + struct device *dev; + struct v4l2_subdev sd; + struct media_pad pad; + + struct clk *xclk; + struct regulator_bulk_data supplies[ARRAY_SIZE(gc08a3_supply_name)]; + struct gpio_desc *reset_gpio; + + struct v4l2_ctrl_handler ctrls; + struct v4l2_ctrl *pixel_rate; + struct v4l2_ctrl *link_freq; + struct v4l2_ctrl *exposure; + struct v4l2_ctrl *vblank; + struct v4l2_ctrl *hblank; + struct v4l2_ctrl *hflip; + struct v4l2_ctrl *vflip; + + struct regmap *regmap; + unsigned long link_freq_bitmap; + const struct gc08a3_mode *cur_mode; +}; + +struct gc08a3_reg_list { + u32 num_of_regs; + const struct cci_reg_sequence *regs; +}; + +static const struct cci_reg_sequence mode_3264x2448[] =3D { + /* system */ + { CCI_REG8(0x0336), 0x70 }, + { CCI_REG8(0x0383), 0xbb }, + { CCI_REG8(0x0344), 0x00 }, + { CCI_REG8(0x0345), 0x06 }, + { CCI_REG8(0x0346), 0x00 }, + { CCI_REG8(0x0347), 0x04 }, + { CCI_REG8(0x0348), 0x0c }, + { CCI_REG8(0x0349), 0xd0 }, + { CCI_REG8(0x034a), 0x09 }, + { CCI_REG8(0x034b), 0x9c }, + { CCI_REG8(0x0202), 0x09 }, + { CCI_REG8(0x0203), 0x04 }, + { CCI_REG8(0x0340), 0x09 }, + { CCI_REG8(0x0341), 0xf4 }, + { CCI_REG8(0x0342), 0x07 }, + { CCI_REG8(0x0343), 0x1c }, + + { CCI_REG8(0x0226), 0x00 }, + { CCI_REG8(0x0227), 0x28 }, + { CCI_REG8(0x0e38), 0x49 }, + { CCI_REG8(0x0210), 0x13 }, + { CCI_REG8(0x0218), 0x00 }, + { CCI_REG8(0x0241), 0x88 }, + { CCI_REG8(0x0392), 0x60 }, + + /* ISP */ + { CCI_REG8(0x00a2), 0x00 }, + { CCI_REG8(0x00a3), 0x00 }, + { CCI_REG8(0x00ab), 0x00 }, + { CCI_REG8(0x00ac), 0x00 }, + + /* GAIN */ + { CCI_REG8(0x0204), 0x04 }, + { CCI_REG8(0x0205), 0x00 }, + { CCI_REG8(0x0050), 0x5c }, + { CCI_REG8(0x0051), 0x44 }, + + /* out window */ + { CCI_REG8(0x009a), 0x66 }, + { CCI_REG8(0x0351), 0x00 }, + { CCI_REG8(0x0352), 0x06 }, + { CCI_REG8(0x0353), 0x00 }, + { CCI_REG8(0x0354), 0x08 }, + { CCI_REG8(0x034c), 0x0c }, + { CCI_REG8(0x034d), 0xc0 }, + { CCI_REG8(0x034e), 0x09 }, + { CCI_REG8(0x034f), 0x90 }, + + /* MIPI */ + { CCI_REG8(0x0114), 0x03 }, + { CCI_REG8(0x0180), 0x65 }, + { CCI_REG8(0x0181), 0xf0 }, + { CCI_REG8(0x0185), 0x01 }, + { CCI_REG8(0x0115), 0x30 }, + { CCI_REG8(0x011b), 0x12 }, + { CCI_REG8(0x011c), 0x12 }, + { CCI_REG8(0x0121), 0x06 }, + { CCI_REG8(0x0122), 0x06 }, + { CCI_REG8(0x0123), 0x15 }, + { CCI_REG8(0x0124), 0x01 }, + { CCI_REG8(0x0125), 0x0b }, + { CCI_REG8(0x0126), 0x08 }, + { CCI_REG8(0x0129), 0x06 }, + { CCI_REG8(0x012a), 0x08 }, + { CCI_REG8(0x012b), 0x08 }, + + { CCI_REG8(0x0a73), 0x60 }, + { CCI_REG8(0x0a70), 0x11 }, + { CCI_REG8(0x0313), 0x80 }, + { CCI_REG8(0x0aff), 0x00 }, + { CCI_REG8(0x0a70), 0x00 }, + { CCI_REG8(0x00a4), 0x80 }, + { CCI_REG8(0x0316), 0x01 }, + { CCI_REG8(0x0a67), 0x00 }, + { CCI_REG8(0x0084), 0x10 }, + { CCI_REG8(0x0102), 0x09 }, +}; + +static const struct cci_reg_sequence mode_1920x1080[] =3D { + /* system */ + { CCI_REG8(0x0336), 0x45 }, + { CCI_REG8(0x0383), 0x8b }, + { CCI_REG8(0x0344), 0x02 }, + { CCI_REG8(0x0345), 0xa6 }, + { CCI_REG8(0x0346), 0x02 }, + { CCI_REG8(0x0347), 0xb0 }, + { CCI_REG8(0x0348), 0x07 }, + { CCI_REG8(0x0349), 0x90 }, + { CCI_REG8(0x034a), 0x04 }, + { CCI_REG8(0x034b), 0x44 }, + { CCI_REG8(0x0202), 0x03 }, + { CCI_REG8(0x0203), 0x00 }, + { CCI_REG8(0x0340), 0x04 }, + { CCI_REG8(0x0341), 0xfc }, + { CCI_REG8(0x0342), 0x07 }, + { CCI_REG8(0x0343), 0x1c }, + { CCI_REG8(0x0226), 0x00 }, + { CCI_REG8(0x0227), 0x88 }, + { CCI_REG8(0x0e38), 0x49 }, + { CCI_REG8(0x0210), 0x13 }, + { CCI_REG8(0x0218), 0x00 }, + { CCI_REG8(0x0241), 0x88 }, + { CCI_REG8(0x0392), 0x60 }, + + /* ISP */ + { CCI_REG8(0x00a2), 0xac }, + { CCI_REG8(0x00a3), 0x02 }, + { CCI_REG8(0x00ab), 0xa0 }, + { CCI_REG8(0x00ac), 0x02 }, + + /* GAIN */ + { CCI_REG8(0x0204), 0x04 }, + { CCI_REG8(0x0205), 0x00 }, + { CCI_REG8(0x0050), 0x38 }, + { CCI_REG8(0x0051), 0x20 }, + + /* out window */ + { CCI_REG8(0x009a), 0x66 }, + { CCI_REG8(0x0351), 0x00 }, + { CCI_REG8(0x0352), 0x06 }, + { CCI_REG8(0x0353), 0x00 }, + { CCI_REG8(0x0354), 0x08 }, + { CCI_REG8(0x034c), 0x07 }, + { CCI_REG8(0x034d), 0x80 }, + { CCI_REG8(0x034e), 0x04 }, + { CCI_REG8(0x034f), 0x38 }, + + /* MIPI */ + { CCI_REG8(0x0114), 0x03 }, + { CCI_REG8(0x0180), 0x65 }, + { CCI_REG8(0x0181), 0xf0 }, + { CCI_REG8(0x0185), 0x01 }, + { CCI_REG8(0x0115), 0x30 }, + { CCI_REG8(0x011b), 0x12 }, + { CCI_REG8(0x011c), 0x12 }, + { CCI_REG8(0x0121), 0x02 }, + { CCI_REG8(0x0122), 0x03 }, + { CCI_REG8(0x0123), 0x0c }, + { CCI_REG8(0x0124), 0x00 }, + { CCI_REG8(0x0125), 0x09 }, + { CCI_REG8(0x0126), 0x06 }, + { CCI_REG8(0x0129), 0x04 }, + { CCI_REG8(0x012a), 0x03 }, + { CCI_REG8(0x012b), 0x06 }, + + { CCI_REG8(0x0a73), 0x60 }, + { CCI_REG8(0x0a70), 0x11 }, + { CCI_REG8(0x0313), 0x80 }, + { CCI_REG8(0x0aff), 0x00 }, + { CCI_REG8(0x0a70), 0x00 }, + { CCI_REG8(0x00a4), 0x80 }, + { CCI_REG8(0x0316), 0x01 }, + { CCI_REG8(0x0a67), 0x00 }, + { CCI_REG8(0x0084), 0x10 }, + { CCI_REG8(0x0102), 0x09 }, +}; + +static const struct cci_reg_sequence mode_table_common[] =3D { + { GC08A3_STREAMING_REG, 0x00 }, + /* system */ + { CCI_REG8(0x031c), 0x60 }, + { CCI_REG8(0x0337), 0x04 }, + { CCI_REG8(0x0335), 0x51 }, + { CCI_REG8(0x0336), 0x70 }, + { CCI_REG8(0x0383), 0xbb }, + { CCI_REG8(0x031a), 0x00 }, + { CCI_REG8(0x0321), 0x10 }, + { CCI_REG8(0x0327), 0x03 }, + { CCI_REG8(0x0325), 0x40 }, + { CCI_REG8(0x0326), 0x23 }, + { CCI_REG8(0x0314), 0x11 }, + { CCI_REG8(0x0315), 0xd6 }, + { CCI_REG8(0x0316), 0x01 }, + { CCI_REG8(0x0334), 0x40 }, + { CCI_REG8(0x0324), 0x42 }, + { CCI_REG8(0x031c), 0x00 }, + { CCI_REG8(0x031c), 0x9f }, + { CCI_REG8(0x039a), 0x13 }, + { CCI_REG8(0x0084), 0x30 }, + { CCI_REG8(0x02b3), 0x08 }, + { CCI_REG8(0x0057), 0x0c }, + { CCI_REG8(0x05c3), 0x50 }, + { CCI_REG8(0x0311), 0x90 }, + { CCI_REG8(0x05a0), 0x02 }, + { CCI_REG8(0x0074), 0x0a }, + { CCI_REG8(0x0059), 0x11 }, + { CCI_REG8(0x0070), 0x05 }, + { CCI_REG8(0x0101), 0x00 }, + + /* analog */ + { CCI_REG8(0x0344), 0x00 }, + { CCI_REG8(0x0345), 0x06 }, + { CCI_REG8(0x0346), 0x00 }, + { CCI_REG8(0x0347), 0x04 }, + { CCI_REG8(0x0348), 0x0c }, + { CCI_REG8(0x0349), 0xd0 }, + { CCI_REG8(0x034a), 0x09 }, + { CCI_REG8(0x034b), 0x9c }, + { CCI_REG8(0x0202), 0x09 }, + { CCI_REG8(0x0203), 0x04 }, + + { CCI_REG8(0x0219), 0x05 }, + { CCI_REG8(0x0226), 0x00 }, + { CCI_REG8(0x0227), 0x28 }, + { CCI_REG8(0x0e0a), 0x00 }, + { CCI_REG8(0x0e0b), 0x00 }, + { CCI_REG8(0x0e24), 0x04 }, + { CCI_REG8(0x0e25), 0x04 }, + { CCI_REG8(0x0e26), 0x00 }, + { CCI_REG8(0x0e27), 0x10 }, + { CCI_REG8(0x0e01), 0x74 }, + { CCI_REG8(0x0e03), 0x47 }, + { CCI_REG8(0x0e04), 0x33 }, + { CCI_REG8(0x0e05), 0x44 }, + { CCI_REG8(0x0e06), 0x44 }, + { CCI_REG8(0x0e0c), 0x1e }, + { CCI_REG8(0x0e17), 0x3a }, + { CCI_REG8(0x0e18), 0x3c }, + { CCI_REG8(0x0e19), 0x40 }, + { CCI_REG8(0x0e1a), 0x42 }, + { CCI_REG8(0x0e28), 0x21 }, + { CCI_REG8(0x0e2b), 0x68 }, + { CCI_REG8(0x0e2c), 0x0d }, + { CCI_REG8(0x0e2d), 0x08 }, + { CCI_REG8(0x0e34), 0xf4 }, + { CCI_REG8(0x0e35), 0x44 }, + { CCI_REG8(0x0e36), 0x07 }, + { CCI_REG8(0x0e38), 0x49 }, + { CCI_REG8(0x0210), 0x13 }, + { CCI_REG8(0x0218), 0x00 }, + { CCI_REG8(0x0241), 0x88 }, + { CCI_REG8(0x0e32), 0x00 }, + { CCI_REG8(0x0e33), 0x18 }, + { CCI_REG8(0x0e42), 0x03 }, + { CCI_REG8(0x0e43), 0x80 }, + { CCI_REG8(0x0e44), 0x04 }, + { CCI_REG8(0x0e45), 0x00 }, + { CCI_REG8(0x0e4f), 0x04 }, + { CCI_REG8(0x057a), 0x20 }, + { CCI_REG8(0x0381), 0x7c }, + { CCI_REG8(0x0382), 0x9b }, + { CCI_REG8(0x0384), 0xfb }, + { CCI_REG8(0x0389), 0x38 }, + { CCI_REG8(0x038a), 0x03 }, + { CCI_REG8(0x0390), 0x6a }, + { CCI_REG8(0x0391), 0x0b }, + { CCI_REG8(0x0392), 0x60 }, + { CCI_REG8(0x0393), 0xc1 }, + { CCI_REG8(0x0396), 0xff }, + { CCI_REG8(0x0398), 0x62 }, + + /* cisctl reset */ + { CCI_REG8(0x031c), 0x80 }, + { CCI_REG8(0x03fe), 0x10 }, + { CCI_REG8(0x03fe), 0x00 }, + { CCI_REG8(0x031c), 0x9f }, + { CCI_REG8(0x03fe), 0x00 }, + { CCI_REG8(0x03fe), 0x00 }, + { CCI_REG8(0x03fe), 0x00 }, + { CCI_REG8(0x03fe), 0x00 }, + { CCI_REG8(0x031c), 0x80 }, + { CCI_REG8(0x03fe), 0x10 }, + { CCI_REG8(0x03fe), 0x00 }, + { CCI_REG8(0x031c), 0x9f }, + { CCI_REG8(0x0360), 0x01 }, + { CCI_REG8(0x0360), 0x00 }, + { CCI_REG8(0x0316), 0x09 }, + { CCI_REG8(0x0a67), 0x80 }, + { CCI_REG8(0x0313), 0x00 }, + { CCI_REG8(0x0a53), 0x0e }, + { CCI_REG8(0x0a65), 0x17 }, + { CCI_REG8(0x0a68), 0xa1 }, + { CCI_REG8(0x0a58), 0x00 }, + { CCI_REG8(0x0ace), 0x0c }, + { CCI_REG8(0x00a4), 0x00 }, + { CCI_REG8(0x00a5), 0x01 }, + { CCI_REG8(0x00a7), 0x09 }, + { CCI_REG8(0x00a8), 0x9c }, + { CCI_REG8(0x00a9), 0x0c }, + { CCI_REG8(0x00aa), 0xd0 }, + { CCI_REG8(0x0a8a), 0x00 }, + { CCI_REG8(0x0a8b), 0xe0 }, + { CCI_REG8(0x0a8c), 0x13 }, + { CCI_REG8(0x0a8d), 0xe8 }, + { CCI_REG8(0x0a90), 0x0a }, + { CCI_REG8(0x0a91), 0x10 }, + { CCI_REG8(0x0a92), 0xf8 }, + { CCI_REG8(0x0a71), 0xf2 }, + { CCI_REG8(0x0a72), 0x12 }, + { CCI_REG8(0x0a73), 0x64 }, + { CCI_REG8(0x0a75), 0x41 }, + { CCI_REG8(0x0a70), 0x07 }, + { CCI_REG8(0x0313), 0x80 }, + + /* ISP */ + { CCI_REG8(0x00a0), 0x01 }, + { CCI_REG8(0x0080), 0xd2 }, + { CCI_REG8(0x0081), 0x3f }, + { CCI_REG8(0x0087), 0x51 }, + { CCI_REG8(0x0089), 0x03 }, + { CCI_REG8(0x009b), 0x40 }, + { CCI_REG8(0x05a0), 0x82 }, + { CCI_REG8(0x05ac), 0x00 }, + { CCI_REG8(0x05ad), 0x01 }, + { CCI_REG8(0x05ae), 0x00 }, + { CCI_REG8(0x0800), 0x0a }, + { CCI_REG8(0x0801), 0x14 }, + { CCI_REG8(0x0802), 0x28 }, + { CCI_REG8(0x0803), 0x34 }, + { CCI_REG8(0x0804), 0x0e }, + { CCI_REG8(0x0805), 0x33 }, + { CCI_REG8(0x0806), 0x03 }, + { CCI_REG8(0x0807), 0x8a }, + { CCI_REG8(0x0808), 0x50 }, + { CCI_REG8(0x0809), 0x00 }, + { CCI_REG8(0x080a), 0x34 }, + { CCI_REG8(0x080b), 0x03 }, + { CCI_REG8(0x080c), 0x26 }, + { CCI_REG8(0x080d), 0x03 }, + { CCI_REG8(0x080e), 0x18 }, + { CCI_REG8(0x080f), 0x03 }, + { CCI_REG8(0x0810), 0x10 }, + { CCI_REG8(0x0811), 0x03 }, + { CCI_REG8(0x0812), 0x00 }, + { CCI_REG8(0x0813), 0x00 }, + { CCI_REG8(0x0814), 0x01 }, + { CCI_REG8(0x0815), 0x00 }, + { CCI_REG8(0x0816), 0x01 }, + { CCI_REG8(0x0817), 0x00 }, + { CCI_REG8(0x0818), 0x00 }, + { CCI_REG8(0x0819), 0x0a }, + { CCI_REG8(0x081a), 0x01 }, + { CCI_REG8(0x081b), 0x6c }, + { CCI_REG8(0x081c), 0x00 }, + { CCI_REG8(0x081d), 0x0b }, + { CCI_REG8(0x081e), 0x02 }, + { CCI_REG8(0x081f), 0x00 }, + { CCI_REG8(0x0820), 0x00 }, + { CCI_REG8(0x0821), 0x0c }, + { CCI_REG8(0x0822), 0x02 }, + { CCI_REG8(0x0823), 0xd9 }, + { CCI_REG8(0x0824), 0x00 }, + { CCI_REG8(0x0825), 0x0d }, + { CCI_REG8(0x0826), 0x03 }, + { CCI_REG8(0x0827), 0xf0 }, + { CCI_REG8(0x0828), 0x00 }, + { CCI_REG8(0x0829), 0x0e }, + { CCI_REG8(0x082a), 0x05 }, + { CCI_REG8(0x082b), 0x94 }, + { CCI_REG8(0x082c), 0x09 }, + { CCI_REG8(0x082d), 0x6e }, + { CCI_REG8(0x082e), 0x07 }, + { CCI_REG8(0x082f), 0xe6 }, + { CCI_REG8(0x0830), 0x10 }, + { CCI_REG8(0x0831), 0x0e }, + { CCI_REG8(0x0832), 0x0b }, + { CCI_REG8(0x0833), 0x2c }, + { CCI_REG8(0x0834), 0x14 }, + { CCI_REG8(0x0835), 0xae }, + { CCI_REG8(0x0836), 0x0f }, + { CCI_REG8(0x0837), 0xc4 }, + { CCI_REG8(0x0838), 0x18 }, + { CCI_REG8(0x0839), 0x0e }, + { CCI_REG8(0x05ac), 0x01 }, + { CCI_REG8(0x059a), 0x00 }, + { CCI_REG8(0x059b), 0x00 }, + { CCI_REG8(0x059c), 0x01 }, + { CCI_REG8(0x0598), 0x00 }, + { CCI_REG8(0x0597), 0x14 }, + { CCI_REG8(0x05ab), 0x09 }, + { CCI_REG8(0x05a4), 0x02 }, + { CCI_REG8(0x05a3), 0x05 }, + { CCI_REG8(0x05a0), 0xc2 }, + { CCI_REG8(0x0207), 0xc4 }, + + /* GAIN */ + { CCI_REG8(0x0208), 0x01 }, + { CCI_REG8(0x0209), 0x72 }, + { CCI_REG8(0x0204), 0x04 }, + { CCI_REG8(0x0205), 0x00 }, + + { CCI_REG8(0x0040), 0x22 }, + { CCI_REG8(0x0041), 0x20 }, + { CCI_REG8(0x0043), 0x10 }, + { CCI_REG8(0x0044), 0x00 }, + { CCI_REG8(0x0046), 0x08 }, + { CCI_REG8(0x0047), 0xf0 }, + { CCI_REG8(0x0048), 0x0f }, + { CCI_REG8(0x004b), 0x0f }, + { CCI_REG8(0x004c), 0x00 }, + { CCI_REG8(0x0050), 0x5c }, + { CCI_REG8(0x0051), 0x44 }, + { CCI_REG8(0x005b), 0x03 }, + { CCI_REG8(0x00c0), 0x00 }, + { CCI_REG8(0x00c1), 0x80 }, + { CCI_REG8(0x00c2), 0x31 }, + { CCI_REG8(0x00c3), 0x00 }, + { CCI_REG8(0x0460), 0x04 }, + { CCI_REG8(0x0462), 0x08 }, + { CCI_REG8(0x0464), 0x0e }, + { CCI_REG8(0x0466), 0x0a }, + { CCI_REG8(0x0468), 0x12 }, + { CCI_REG8(0x046a), 0x12 }, + { CCI_REG8(0x046c), 0x10 }, + { CCI_REG8(0x046e), 0x0c }, + { CCI_REG8(0x0461), 0x03 }, + { CCI_REG8(0x0463), 0x03 }, + { CCI_REG8(0x0465), 0x03 }, + { CCI_REG8(0x0467), 0x03 }, + { CCI_REG8(0x0469), 0x04 }, + { CCI_REG8(0x046b), 0x04 }, + { CCI_REG8(0x046d), 0x04 }, + { CCI_REG8(0x046f), 0x04 }, + { CCI_REG8(0x0470), 0x04 }, + { CCI_REG8(0x0472), 0x10 }, + { CCI_REG8(0x0474), 0x26 }, + { CCI_REG8(0x0476), 0x38 }, + { CCI_REG8(0x0478), 0x20 }, + { CCI_REG8(0x047a), 0x30 }, + { CCI_REG8(0x047c), 0x38 }, + { CCI_REG8(0x047e), 0x60 }, + { CCI_REG8(0x0471), 0x05 }, + { CCI_REG8(0x0473), 0x05 }, + { CCI_REG8(0x0475), 0x05 }, + { CCI_REG8(0x0477), 0x05 }, + { CCI_REG8(0x0479), 0x04 }, + { CCI_REG8(0x047b), 0x04 }, + { CCI_REG8(0x047d), 0x04 }, + { CCI_REG8(0x047f), 0x04 }, +}; + +struct gc08a3_mode { + u32 width; + u32 height; + const struct gc08a3_reg_list reg_list; + + u32 hts; /* Horizontal timining size */ + u32 vts_def; /* Default vertical timining size */ + u32 vts_min; /* Min vertical timining size */ +}; + +/* Declare modes in order, from biggest to smallest height. */ +static const struct gc08a3_mode gc08a3_modes[] =3D { + { + /* 3264*2448@30fps */ + .width =3D GC08A3_NATIVE_WIDTH, + .height =3D GC08A3_NATIVE_HEIGHT, + .reg_list =3D { + .num_of_regs =3D ARRAY_SIZE(mode_3264x2448), + .regs =3D mode_3264x2448, + }, + .hts =3D 3640, + .vts_def =3D 2548, + .vts_min =3D 2548, + }, + { + /* 1920*1080@60fps */ + .width =3D 1920, + .height =3D 1080, + .reg_list =3D { + .num_of_regs =3D ARRAY_SIZE(mode_1920x1080), + .regs =3D mode_1920x1080, + }, + .hts =3D 3640, + .vts_def =3D 1276, + .vts_min =3D 1276, + }, +}; + +static inline struct gc08a3 *to_gc08a3(struct v4l2_subdev *sd) +{ + return container_of(sd, struct gc08a3, sd); +} + +static int gc08a3_power_on(struct device *dev) +{ + struct v4l2_subdev *sd =3D dev_get_drvdata(dev); + struct gc08a3 *gc08a3 =3D to_gc08a3(sd); + int ret; + + ret =3D regulator_bulk_enable(ARRAY_SIZE(gc08a3_supply_name), + gc08a3->supplies); + if (ret < 0) { + dev_err(gc08a3->dev, "failed to enable regulators: %d\n", ret); + return ret; + } + + ret =3D clk_prepare_enable(gc08a3->xclk); + if (ret < 0) { + regulator_bulk_disable(ARRAY_SIZE(gc08a3_supply_name), + gc08a3->supplies); + dev_err(gc08a3->dev, "clk prepare enable failed\n"); + return ret; + } + + fsleep(GC08A3_SLEEP_US); + + gpiod_set_value_cansleep(gc08a3->reset_gpio, 0); + fsleep(GC08A3_SLEEP_US); + + return 0; +} + +static int gc08a3_power_off(struct device *dev) +{ + struct v4l2_subdev *sd =3D dev_get_drvdata(dev); + struct gc08a3 *gc08a3 =3D to_gc08a3(sd); + + clk_disable_unprepare(gc08a3->xclk); + gpiod_set_value_cansleep(gc08a3->reset_gpio, 1); + regulator_bulk_disable(ARRAY_SIZE(gc08a3_supply_name), + gc08a3->supplies); + + return 0; +} + +static int gc08a3_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->index > 0) + return -EINVAL; + + code->code =3D GC08A3_MBUS_CODE; + + return 0; +} + +static int gc08a3_enum_frame_size(struct v4l2_subdev *subdev, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_frame_size_enum *fse) +{ + if (fse->code !=3D GC08A3_MBUS_CODE) + return -EINVAL; + + if (fse->index >=3D ARRAY_SIZE(gc08a3_modes)) + return -EINVAL; + + fse->min_width =3D gc08a3_modes[fse->index].width; + fse->max_width =3D gc08a3_modes[fse->index].width; + fse->min_height =3D gc08a3_modes[fse->index].height; + fse->max_height =3D gc08a3_modes[fse->index].height; + + return 0; +} + +static int gc08a3_update_cur_mode_controls(struct gc08a3 *gc08a3, + const struct gc08a3_mode *mode) +{ + s64 exposure_max, h_blank; + int ret; + + ret =3D __v4l2_ctrl_modify_range(gc08a3->vblank, + mode->vts_min - mode->height, + GC08A3_VTS_MAX - mode->height, 1, + mode->vts_def - mode->height); + if (ret) { + dev_err(gc08a3->dev, "VB ctrl range update failed\n"); + return ret; + } + + h_blank =3D mode->hts - mode->width; + ret =3D __v4l2_ctrl_modify_range(gc08a3->hblank, h_blank, h_blank, 1, + h_blank); + if (ret) { + dev_err(gc08a3->dev, "HB ctrl range update failed\n"); + return ret; + } + + exposure_max =3D mode->vts_def - GC08A3_EXP_MARGIN; + ret =3D __v4l2_ctrl_modify_range(gc08a3->exposure, GC08A3_EXP_MIN, + exposure_max, GC08A3_EXP_STEP, + exposure_max); + if (ret) { + dev_err(gc08a3->dev, "exposure ctrl range update failed\n"); + return ret; + } + + return 0; +} + +static void gc08a3_update_pad_format(struct gc08a3 *gc08a3, + const struct gc08a3_mode *mode, + struct v4l2_mbus_framefmt *fmt) +{ + fmt->width =3D mode->width; + fmt->height =3D mode->height; + fmt->code =3D GC08A3_MBUS_CODE; + fmt->field =3D V4L2_FIELD_NONE; + fmt->colorspace =3D V4L2_COLORSPACE_RAW; + fmt->ycbcr_enc =3D V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace); + fmt->quantization =3D V4L2_QUANTIZATION_FULL_RANGE; + fmt->xfer_func =3D V4L2_XFER_FUNC_NONE; +} + +static int gc08a3_set_format(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_format *fmt) +{ + struct gc08a3 *gc08a3 =3D to_gc08a3(sd); + struct v4l2_mbus_framefmt *mbus_fmt; + struct v4l2_rect *crop; + const struct gc08a3_mode *mode; + + mode =3D v4l2_find_nearest_size(gc08a3_modes, ARRAY_SIZE(gc08a3_modes), + width, height, fmt->format.width, + fmt->format.height); + + /*update crop info to subdev state*/ + crop =3D v4l2_subdev_state_get_crop(state, 0); + crop->width =3D mode->width; + crop->height =3D mode->height; + + /*update fmt info to subdev state*/ + gc08a3_update_pad_format(gc08a3, mode, &fmt->format); + mbus_fmt =3D v4l2_subdev_state_get_format(state, 0); + *mbus_fmt =3D fmt->format; + + if (fmt->which =3D=3D V4L2_SUBDEV_FORMAT_TRY) + return 0; + + gc08a3->cur_mode =3D mode; + gc08a3_update_cur_mode_controls(gc08a3, mode); + + return 0; +} + +static int gc08a3_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_selection *sel) +{ + switch (sel->target) { + case V4L2_SEL_TGT_CROP_DEFAULT: + case V4L2_SEL_TGT_CROP: + sel->r =3D *v4l2_subdev_state_get_crop(state, 0); + break; + case V4L2_SEL_TGT_CROP_BOUNDS: + sel->r.top =3D 0; + sel->r.left =3D 0; + sel->r.width =3D GC08A3_NATIVE_WIDTH; + sel->r.height =3D GC08A3_NATIVE_HEIGHT; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int gc08a3_init_state(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state) +{ + struct v4l2_subdev_format fmt =3D { + .which =3D V4L2_SUBDEV_FORMAT_TRY, + .pad =3D 0, + .format =3D { + .code =3D GC08A3_MBUS_CODE, + .width =3D gc08a3_modes[0].width, + .height =3D gc08a3_modes[0].height, + }, + }; + + gc08a3_set_format(sd, state, &fmt); + + return 0; +} + +static int gc08a3_set_ctrl_hflip(struct gc08a3 *gc08a3, u32 ctrl_val) +{ + int ret; + u64 val; + + ret =3D cci_read(gc08a3->regmap, GC08A3_FLIP_REG, &val, NULL); + if (ret) { + dev_err(gc08a3->dev, "read hflip register failed: %d\n", ret); + return ret; + } + + return cci_update_bits(gc08a3->regmap, GC08A3_FLIP_REG, + GC08A3_FLIP_H_MASK, + ctrl_val ? GC08A3_FLIP_H_MASK : 0, NULL); +} + +static int gc08a3_set_ctrl_vflip(struct gc08a3 *gc08a3, u32 ctrl_val) +{ + int ret; + u64 val; + + ret =3D cci_read(gc08a3->regmap, GC08A3_FLIP_REG, &val, NULL); + if (ret) { + dev_err(gc08a3->dev, "read vflip register failed: %d\n", ret); + return ret; + } + + return cci_update_bits(gc08a3->regmap, GC08A3_FLIP_REG, + GC08A3_FLIP_V_MASK, + ctrl_val ? GC08A3_FLIP_V_MASK : 0, NULL); +} + +static int gc08a3_test_pattern(struct gc08a3 *gc08a3, u32 pattern_menu) +{ + u32 pattern =3D 0; + int ret; + + if (pattern_menu) { + switch (pattern_menu) { + case 1: + pattern =3D 0x00; + break; + case 2: + pattern =3D 0x10; + break; + case 3: + case 4: + case 5: + case 6: + case 7: + pattern =3D pattern_menu + 1; + break; + } + + ret =3D cci_write(gc08a3->regmap, GC08A3_REG_TEST_PATTERN_IDX, + pattern, NULL); + if (ret) + return ret; + + ret =3D cci_write(gc08a3->regmap, GC08A3_REG_TEST_PATTERN_EN, + GC08A3_TEST_PATTERN_EN, NULL); + if (ret) + return ret; + } else { + ret =3D cci_write(gc08a3->regmap, GC08A3_REG_TEST_PATTERN_EN, + 0x00, NULL); + if (ret) + return ret; + } + + return 0; +} + +static int gc08a3_set_ctrl(struct v4l2_ctrl *ctrl) +{ + struct gc08a3 *gc08a3 =3D + container_of(ctrl->handler, struct gc08a3, ctrls); + int ret =3D 0; + s64 exposure_max; + struct v4l2_subdev_state *state; + const struct v4l2_mbus_framefmt *format; + + state =3D v4l2_subdev_get_locked_active_state(&gc08a3->sd); + format =3D v4l2_subdev_state_get_format(state, 0); + + if (ctrl->id =3D=3D V4L2_CID_VBLANK) { + /* Update max exposure while meeting expected vblanking */ + exposure_max =3D format->height + ctrl->val - GC08A3_EXP_MARGIN; + __v4l2_ctrl_modify_range(gc08a3->exposure, + gc08a3->exposure->minimum, + exposure_max, gc08a3->exposure->step, + exposure_max); + } + + /* + * Applying V4L2 control value only happens + * when power is on for streaming + */ + if (!pm_runtime_get_if_in_use(gc08a3->dev)) + return 0; + + switch (ctrl->id) { + case V4L2_CID_EXPOSURE: + ret =3D cci_write(gc08a3->regmap, GC08A3_EXP_REG, + ctrl->val, NULL); + break; + + case V4L2_CID_ANALOGUE_GAIN: + ret =3D cci_write(gc08a3->regmap, GC08A3_AGAIN_REG, + ctrl->val, NULL); + break; + + case V4L2_CID_VBLANK: + ret =3D cci_write(gc08a3->regmap, GC08A3_FRAME_LENGTH_REG, + gc08a3->cur_mode->height + ctrl->val, NULL); + break; + + case V4L2_CID_HFLIP: + ret =3D gc08a3_set_ctrl_hflip(gc08a3, ctrl->val); + break; + + case V4L2_CID_VFLIP: + ret =3D gc08a3_set_ctrl_vflip(gc08a3, ctrl->val); + break; + + case V4L2_CID_TEST_PATTERN: + ret =3D gc08a3_test_pattern(gc08a3, ctrl->val); + break; + + default: + break; + } + + pm_runtime_put(gc08a3->dev); + + return ret; +} + +static const struct v4l2_ctrl_ops gc08a3_ctrl_ops =3D { + .s_ctrl =3D gc08a3_set_ctrl, +}; + +static int gc08a3_start_streaming(struct gc08a3 *gc08a3) +{ + const struct gc08a3_mode *mode; + const struct gc08a3_reg_list *reg_list; + int ret; + + ret =3D pm_runtime_resume_and_get(gc08a3->dev); + if (ret < 0) + return ret; + + ret =3D cci_multi_reg_write(gc08a3->regmap, + mode_table_common, + ARRAY_SIZE(mode_table_common), NULL); + if (ret) + goto err_rpm_put; + + mode =3D gc08a3->cur_mode; + reg_list =3D &mode->reg_list; + ret =3D cci_multi_reg_write(gc08a3->regmap, + reg_list->regs, reg_list->num_of_regs, NULL); + if (ret < 0) + goto err_rpm_put; + + ret =3D __v4l2_ctrl_handler_setup(&gc08a3->ctrls); + if (ret < 0) { + dev_err(gc08a3->dev, "could not sync v4l2 controls\n"); + goto err_rpm_put; + } + + ret =3D cci_write(gc08a3->regmap, GC08A3_STREAMING_REG, 1, NULL); + if (ret < 0) { + dev_err(gc08a3->dev, "write STRAEMING_REG failed: %d\n", ret); + goto err_rpm_put; + } + + return 0; + +err_rpm_put: + pm_runtime_put(gc08a3->dev); + return ret; +} + +static int gc08a3_stop_streaming(struct gc08a3 *gc08a3) +{ + int ret; + + ret =3D cci_write(gc08a3->regmap, GC08A3_STREAMING_REG, 0, NULL); + if (ret < 0) + dev_err(gc08a3->dev, "could not sent stop streaming %d\n", ret); + + pm_runtime_put(gc08a3->dev); + return ret; +} + +static int gc08a3_s_stream(struct v4l2_subdev *subdev, int enable) +{ + struct gc08a3 *gc08a3 =3D to_gc08a3(subdev); + struct v4l2_subdev_state *state; + int ret; + + state =3D v4l2_subdev_lock_and_get_active_state(subdev); + + if (enable) + ret =3D gc08a3_start_streaming(gc08a3); + else + ret =3D gc08a3_stop_streaming(gc08a3); + + v4l2_subdev_unlock_state(state); + + return ret; +} + +static const struct v4l2_subdev_video_ops gc08a3_video_ops =3D { + .s_stream =3D gc08a3_s_stream, +}; + +static const struct v4l2_subdev_pad_ops gc08a3_subdev_pad_ops =3D { + .enum_mbus_code =3D gc08a3_enum_mbus_code, + .enum_frame_size =3D gc08a3_enum_frame_size, + .get_fmt =3D v4l2_subdev_get_fmt, + .set_fmt =3D gc08a3_set_format, + .get_selection =3D gc08a3_get_selection, +}; + +static const struct v4l2_subdev_core_ops gc08a3_core_ops =3D { + .subscribe_event =3D v4l2_ctrl_subdev_subscribe_event, + .unsubscribe_event =3D v4l2_event_subdev_unsubscribe, +}; + +static const struct v4l2_subdev_ops gc08a3_subdev_ops =3D { + .core =3D &gc08a3_core_ops, + .video =3D &gc08a3_video_ops, + .pad =3D &gc08a3_subdev_pad_ops, +}; + +static const struct v4l2_subdev_internal_ops gc08a3_internal_ops =3D { + .init_state =3D gc08a3_init_state, +}; + +static int gc08a3_get_regulators(struct device *dev, struct gc08a3 *gc08a3) +{ + unsigned int i; + + for (i =3D 0; i < ARRAY_SIZE(gc08a3_supply_name); i++) + gc08a3->supplies[i].supply =3D gc08a3_supply_name[i]; + + return devm_regulator_bulk_get(dev, ARRAY_SIZE(gc08a3_supply_name), + gc08a3->supplies); +} + +static int gc08a3_parse_fwnode(struct gc08a3 *gc08a3) +{ + struct fwnode_handle *endpoint; + struct v4l2_fwnode_endpoint bus_cfg =3D { + .bus_type =3D V4L2_MBUS_CSI2_DPHY, + }; + int ret; + struct device *dev =3D gc08a3->dev; + + endpoint =3D + fwnode_graph_get_endpoint_by_id(dev_fwnode(dev), 0, 0, + FWNODE_GRAPH_ENDPOINT_NEXT); + if (!endpoint) { + dev_err(dev, "endpoint node not found\n"); + return -EINVAL; + } + + ret =3D v4l2_fwnode_endpoint_alloc_parse(endpoint, &bus_cfg); + if (ret) { + dev_err(dev, "parsing endpoint node failed\n"); + goto done; + } + + ret =3D v4l2_link_freq_to_bitmap(dev, bus_cfg.link_frequencies, + bus_cfg.nr_of_link_frequencies, + gc08a3_link_freq_menu_items, + ARRAY_SIZE(gc08a3_link_freq_menu_items), + &gc08a3->link_freq_bitmap); + if (ret) + goto done; + +done: + v4l2_fwnode_endpoint_free(&bus_cfg); + fwnode_handle_put(endpoint); + return ret; +} + +static u64 gc08a3_to_pixel_rate(u32 f_index) +{ + u64 pixel_rate =3D + gc08a3_link_freq_menu_items[f_index] * 2 * GC08A3_DATA_LANES; + + return div_u64(pixel_rate, GC08A3_RGB_DEPTH); +} + +static int gc08a3_init_controls(struct gc08a3 *gc08a3) +{ + struct i2c_client *client =3D v4l2_get_subdevdata(&gc08a3->sd); + const struct gc08a3_mode *mode =3D &gc08a3_modes[0]; + const struct v4l2_ctrl_ops *ops =3D &gc08a3_ctrl_ops; + struct v4l2_fwnode_device_properties props; + struct v4l2_ctrl_handler *ctrl_hdlr; + s64 exposure_max, h_blank; + int ret; + + ctrl_hdlr =3D &gc08a3->ctrls; + ret =3D v4l2_ctrl_handler_init(ctrl_hdlr, 9); + if (ret) + return ret; + + gc08a3->hflip =3D v4l2_ctrl_new_std(ctrl_hdlr, &gc08a3_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + gc08a3->vflip =3D v4l2_ctrl_new_std(ctrl_hdlr, &gc08a3_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + v4l2_ctrl_cluster(2, &gc08a3->hflip); + + gc08a3->link_freq =3D + v4l2_ctrl_new_int_menu(ctrl_hdlr, + &gc08a3_ctrl_ops, + V4L2_CID_LINK_FREQ, + ARRAY_SIZE(gc08a3_link_freq_menu_items) - 1, + 0, + gc08a3_link_freq_menu_items); + if (gc08a3->link_freq) + gc08a3->link_freq->flags |=3D V4L2_CTRL_FLAG_READ_ONLY; + + gc08a3->pixel_rate =3D + v4l2_ctrl_new_std(ctrl_hdlr, + &gc08a3_ctrl_ops, + V4L2_CID_PIXEL_RATE, 0, + gc08a3_to_pixel_rate(0), + 1, + gc08a3_to_pixel_rate(0)); + + gc08a3->vblank =3D + v4l2_ctrl_new_std(ctrl_hdlr, + &gc08a3_ctrl_ops, V4L2_CID_VBLANK, + mode->vts_min - mode->height, + GC08A3_VTS_MAX - mode->height, 1, + mode->vts_def - mode->height); + + h_blank =3D mode->hts - mode->width; + gc08a3->hblank =3D v4l2_ctrl_new_std(ctrl_hdlr, &gc08a3_ctrl_ops, + V4L2_CID_HBLANK, h_blank, h_blank, 1, + h_blank); + if (gc08a3->hblank) + gc08a3->hblank->flags |=3D V4L2_CTRL_FLAG_READ_ONLY; + + v4l2_ctrl_new_std(ctrl_hdlr, &gc08a3_ctrl_ops, + V4L2_CID_ANALOGUE_GAIN, GC08A3_AGAIN_MIN, + GC08A3_AGAIN_MAX, GC08A3_AGAIN_STEP, + GC08A3_AGAIN_MIN); + + exposure_max =3D mode->vts_def - GC08A3_EXP_MARGIN; + gc08a3->exposure =3D v4l2_ctrl_new_std(ctrl_hdlr, &gc08a3_ctrl_ops, + V4L2_CID_EXPOSURE, GC08A3_EXP_MIN, + exposure_max, GC08A3_EXP_STEP, + exposure_max); + + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &gc08a3_ctrl_ops, + V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(gc08a3_test_pattern_menu) - 1, + 0, 0, gc08a3_test_pattern_menu); + + /* register properties to fwnode (e.g. rotation, orientation) */ + ret =3D v4l2_fwnode_device_parse(&client->dev, &props); + if (ret) + goto error_ctrls; + + ret =3D v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, ops, &props); + if (ret) + goto error_ctrls; + + if (ctrl_hdlr->error) { + ret =3D ctrl_hdlr->error; + goto error_ctrls; + } + + gc08a3->sd.ctrl_handler =3D ctrl_hdlr; + + return 0; + +error_ctrls: + v4l2_ctrl_handler_free(ctrl_hdlr); + + return ret; +} + +static int gc08a3_identify_module(struct gc08a3 *gc08a3) +{ + u64 val; + int ret; + + ret =3D cci_read(gc08a3->regmap, GC08A3_REG_CHIP_ID, &val, NULL); + if (ret) { + dev_err(gc08a3->dev, "failed to read chip id"); + return ret; + } + + if (val !=3D GC08A3_CHIP_ID) { + dev_err(gc08a3->dev, "chip id mismatch: 0x%x!=3D0x%llx", + GC08A3_CHIP_ID, val); + return -ENXIO; + } + + return 0; +} + +static int gc08a3_probe(struct i2c_client *client) +{ + struct device *dev =3D &client->dev; + struct gc08a3 *gc08a3; + int ret; + + gc08a3 =3D devm_kzalloc(dev, sizeof(*gc08a3), GFP_KERNEL); + if (!gc08a3) + return -ENOMEM; + + gc08a3->dev =3D dev; + + ret =3D gc08a3_parse_fwnode(gc08a3); + if (ret) + return ret; + + gc08a3->regmap =3D devm_cci_regmap_init_i2c(client, 16); + if (IS_ERR(gc08a3->regmap)) + return dev_err_probe(dev, PTR_ERR(gc08a3->regmap), + "failed to init CCI\n"); + + gc08a3->xclk =3D devm_clk_get(dev, NULL); + if (IS_ERR(gc08a3->xclk)) + return dev_err_probe(dev, PTR_ERR(gc08a3->xclk), + "failed to get xclk\n"); + + ret =3D clk_set_rate(gc08a3->xclk, GC08A3_DEFAULT_CLK_FREQ); + if (ret) + return dev_err_probe(dev, ret, + "failed to set xclk frequency\n"); + + ret =3D gc08a3_get_regulators(dev, gc08a3); + if (ret < 0) + return dev_err_probe(dev, ret, + "failed to get regulators\n"); + + gc08a3->reset_gpio =3D devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(gc08a3->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(gc08a3->reset_gpio), + "failed to get gpio\n"); + + v4l2_i2c_subdev_init(&gc08a3->sd, client, &gc08a3_subdev_ops); + gc08a3->sd.internal_ops =3D &gc08a3_internal_ops; + gc08a3->cur_mode =3D &gc08a3_modes[0]; + + ret =3D gc08a3_power_on(gc08a3->dev); + if (ret) + return dev_err_probe(dev, ret, + "failed to sensor power on\n"); + + ret =3D gc08a3_identify_module(gc08a3); + if (ret) { + dev_err(&client->dev, "failed to find sensor: %d\n", ret); + goto err_power_off; + } + + ret =3D gc08a3_init_controls(gc08a3); + if (ret) { + dev_err(&client->dev, "failed to init controls: %d", ret); + goto err_power_off; + } + + gc08a3->sd.flags |=3D V4L2_SUBDEV_FL_HAS_DEVNODE | + V4L2_SUBDEV_FL_HAS_EVENTS; + gc08a3->pad.flags =3D MEDIA_PAD_FL_SOURCE; + gc08a3->sd.dev =3D &client->dev; + gc08a3->sd.entity.function =3D MEDIA_ENT_F_CAM_SENSOR; + + ret =3D media_entity_pads_init(&gc08a3->sd.entity, 1, &gc08a3->pad); + if (ret < 0) { + dev_err(dev, "could not register media entity\n"); + goto err_v4l2_ctrl_handler_free; + } + + gc08a3->sd.state_lock =3D gc08a3->ctrls.lock; + ret =3D v4l2_subdev_init_finalize(&gc08a3->sd); + if (ret < 0) { + dev_err(dev, "v4l2 subdev init error: %d\n", ret); + goto err_media_entity_cleanup; + } + + pm_runtime_set_active(gc08a3->dev); + pm_runtime_enable(gc08a3->dev); + pm_runtime_set_autosuspend_delay(gc08a3->dev, 1000); + pm_runtime_use_autosuspend(gc08a3->dev); + pm_runtime_idle(gc08a3->dev); + + ret =3D v4l2_async_register_subdev_sensor(&gc08a3->sd); + if (ret < 0) { + dev_err(dev, "could not register v4l2 device\n"); + goto err_rpm; + } + + return 0; + +err_rpm: + pm_runtime_disable(gc08a3->dev); + v4l2_subdev_cleanup(&gc08a3->sd); + +err_media_entity_cleanup: + media_entity_cleanup(&gc08a3->sd.entity); + +err_v4l2_ctrl_handler_free: + v4l2_ctrl_handler_free(gc08a3->sd.ctrl_handler); + +err_power_off: + gc08a3_power_off(gc08a3->dev); + + return ret; +} + +static void gc08a3_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd =3D i2c_get_clientdata(client); + struct gc08a3 *gc08a3 =3D to_gc08a3(sd); + + v4l2_async_unregister_subdev(&gc08a3->sd); + v4l2_subdev_cleanup(sd); + media_entity_cleanup(&gc08a3->sd.entity); + v4l2_ctrl_handler_free(&gc08a3->ctrls); + + pm_runtime_disable(&client->dev); + if (!pm_runtime_status_suspended(&client->dev)) + gc08a3_power_off(gc08a3->dev); + pm_runtime_set_suspended(&client->dev); +} + +static const struct of_device_id gc08a3_of_match[] =3D { + { .compatible =3D "galaxycore,gc08a3" }, + {} +}; +MODULE_DEVICE_TABLE(of, gc08a3_of_match); + +static const struct dev_pm_ops gc08a3_pm_ops =3D { + RUNTIME_PM_OPS(gc08a3_power_off, gc08a3_power_on, NULL) +}; + +static struct i2c_driver gc08a3_i2c_driver =3D { + .driver =3D { + .of_match_table =3D gc08a3_of_match, + .pm =3D pm_ptr(&gc08a3_pm_ops), + .name =3D "gc08a3", + }, + .probe =3D gc08a3_probe, + .remove =3D gc08a3_remove, +}; + +module_i2c_driver(gc08a3_i2c_driver); + +MODULE_DESCRIPTION("GalaxyCore gc08a3 Camera driver"); +MODULE_AUTHOR("Zhi Mao "); +MODULE_LICENSE("GPL"); --=20 2.25.1