From patchwork Sat Jul 9 13:50:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adam Ford X-Patchwork-Id: 84688 Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1oAArX-003itv-Ho; Sat, 09 Jul 2022 13:51:14 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229642AbiGINvF (ORCPT + 1 other); Sat, 9 Jul 2022 09:51:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60050 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229460AbiGINvE (ORCPT ); Sat, 9 Jul 2022 09:51:04 -0400 Received: from mail-il1-x131.google.com (mail-il1-x131.google.com [IPv6:2607:f8b0:4864:20::131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8D4B3C17F; Sat, 9 Jul 2022 06:51:03 -0700 (PDT) Received: by mail-il1-x131.google.com with SMTP id n9so698316ilq.12; Sat, 09 Jul 2022 06:51:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=cMrQxh/P5Iy9K8Q4TNZI4P0CEcaPHRQrvet4cwyCSTA=; b=js+7E5FEvu2Gg7CCR9gM1CdmcGst6Mh9QYoSJZcqtf8l+xWLSfXDeXpCKDztq9hxBE syUfxCsmPMrJ/hiHkxqTmHcUJMLq9+g/P0bfUWmvSqB5xEoQkH5eoXpj6/0aBtVhR7TS VAwqZUXkX9g/7AA9iawNL7oWEwsr4BfLBTiZeIkskVCQpuW/RKIiVeVflq5HnHOy892a TSILiKbHCnhSLseXeHYqfFsxCZSoA3vhFI9vYdmOAOO4zGLSv6FH4bOA3T7Gfvvc3f6q p/FPrv9GIOLyWSHnVf8LlpHW57JOhz6RveDQ6VcNWgjsHrO8hZva2Zmgv+4qSbxfdbKF 5sCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=cMrQxh/P5Iy9K8Q4TNZI4P0CEcaPHRQrvet4cwyCSTA=; b=U/TnBra3kTVPAJ64sDDnU9kNdF2CT2kf8Pw0dlh25M0VjJSE3j+B5raoEgXJ8tXv6i 0KzGAOBrwhqnExYd39Brpgu1ouFlWnM7bjQmO73zIvFdlcVscsrtOBgW1+D5ZaDJTkub s88Wshu+pW8FloQVToa1VpocruyCNdnZ64eAck9EeRVUP1dLtxfqFrIiI+Wz1UdNGubC P3Aw6518REw6MHCcCmdWegAgJNIv8AFZiKs4kkMna11O2bgDKDf2K0443AF1sV1qinS1 fNeDCn73vSDVOqde6eN91D/4iXJV0yC9i7oWD2YeAuUd++lqybTJ7aAGY0T6FmOaOU2y EaWA== X-Gm-Message-State: AJIora8mJ3JHV8vl9IgGI80rZvtrHdkVEyEp4qwunULxho5z3Gniz61N BslIMhUgkRpeXJwgrlUglzMbFH/oOLUuTQ== X-Google-Smtp-Source: AGRyM1uC8/YoqNiUS7Ob5+R2NEN1K6qGviVEMbvn9JwuBR+8Wm7RrMrpu0Q9XQma/COn/fEtN/vyLg== X-Received: by 2002:a05:6e02:b21:b0:2dc:6d2d:5a61 with SMTP id e1-20020a056e020b2100b002dc6d2d5a61mr1272502ilu.273.1657374662529; Sat, 09 Jul 2022 06:51:02 -0700 (PDT) Received: from aford-IdeaCentre-A730.lan ([2601:448:8400:9e8:4a65:3ca1:59ec:e66b]) by smtp.gmail.com with ESMTPSA id p133-20020a02298b000000b0033f3e34f3b4sm635441jap.150.2022.07.09.06.51.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 09 Jul 2022 06:51:01 -0700 (PDT) From: Adam Ford To: linux-media@vger.kernel.org Cc: dave.stevenson@raspberrypi.com, mchehab@kernel.org, linux-kernel@vger.kernel.org, Adam Ford Subject: [PATCH 1/2] media: i2c: imx219: Split common registers from mode tables Date: Sat, 9 Jul 2022 08:50:51 -0500 Message-Id: <20220709135052.3850913-1-aford173@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,FREEMAIL_FORGED_FROMDOMAIN=0.001,FREEMAIL_FROM=0.001,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no There are four modes, and each mode has a table of registers. Some of the registers are common to all modes, so create new tables for these common registers to reduce duplicate code. Signed-off-by: Adam Ford Reviewed-by: Dave Stevenson --- V3: Change some of the comments to better reflect their description Add a few more entries to the imx219_common_regs table. diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c index e10af3f74b38..faa5dab3c2ec 100644 --- a/drivers/media/i2c/imx219.c +++ b/drivers/media/i2c/imx219.c @@ -145,23 +145,61 @@ struct imx219_mode { struct imx219_reg_list reg_list; }; -/* - * Register sets lifted off the i2C interface from the Raspberry Pi firmware - * driver. - * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7. - */ -static const struct imx219_reg mode_3280x2464_regs[] = { - {0x0100, 0x00}, +static const struct imx219_reg imx219_common_regs[] = { + {0x0100, 0x00}, /* Mode Select */ + + /* To Access Addresses 3000-5fff, send the following commands */ {0x30eb, 0x0c}, {0x30eb, 0x05}, {0x300a, 0xff}, {0x300b, 0xff}, {0x30eb, 0x05}, {0x30eb, 0x09}, - {0x0114, 0x01}, - {0x0128, 0x00}, - {0x012a, 0x18}, + + /* PLL Clock Table */ + {0x0301, 0x05}, /* VTPXCK_DIV */ + {0x0303, 0x01}, /* VTSYSCK_DIV */ + {0x0304, 0x03}, /* PREPLLCK_VT_DIV 0x03 = AUTO set */ + {0x0305, 0x03}, /* PREPLLCK_OP_DIV 0x03 = AUTO set */ + {0x0306, 0x00}, /* PLL_VT_MPY */ + {0x0307, 0x39}, + {0x030b, 0x01}, /* OP_SYS_CLK_DIV */ + {0x030c, 0x00}, /* PLL_OP_MPY */ + {0x030d, 0x72}, + + /* Undocumented registers */ + {0x455e, 0x00}, + {0x471e, 0x4b}, + {0x4767, 0x0f}, + {0x4750, 0x14}, + {0x4540, 0x00}, + {0x47b4, 0x14}, + {0x4713, 0x30}, + {0x478b, 0x10}, + {0x478f, 0x10}, + {0x4793, 0x10}, + {0x4797, 0x0e}, + {0x479b, 0x0e}, + + /* Frame Bank Register Group "A" */ + {0x0162, 0x0d}, /* Line_Length_A */ + {0x0163, 0x78}, + {0x0170, 0x01}, /* X_ODD_INC_A */ + {0x0171, 0x01}, /* Y_ODD_INC_A */ + + /* Output setup registers */ + {0x0114, 0x01}, /* CSI 2-Lane Mode */ + {0x0128, 0x00}, /* DPHY Auto Mode */ + {0x012a, 0x18}, /* EXCK_Freq */ {0x012b, 0x00}, +}; + +/* + * Register sets lifted off the i2C interface from the Raspberry Pi firmware + * driver. + * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7. + */ +static const struct imx219_reg mode_3280x2464_regs[] = { {0x0164, 0x00}, {0x0165, 0x00}, {0x0166, 0x0c}, @@ -174,53 +212,15 @@ static const struct imx219_reg mode_3280x2464_regs[] = { {0x016d, 0xd0}, {0x016e, 0x09}, {0x016f, 0xa0}, - {0x0170, 0x01}, - {0x0171, 0x01}, - {0x0174, 0x00}, + {0x0174, 0x00}, /* No-Binning */ {0x0175, 0x00}, - {0x0301, 0x05}, - {0x0303, 0x01}, - {0x0304, 0x03}, - {0x0305, 0x03}, - {0x0306, 0x00}, - {0x0307, 0x39}, - {0x030b, 0x01}, - {0x030c, 0x00}, - {0x030d, 0x72}, {0x0624, 0x0c}, {0x0625, 0xd0}, {0x0626, 0x09}, {0x0627, 0xa0}, - {0x455e, 0x00}, - {0x471e, 0x4b}, - {0x4767, 0x0f}, - {0x4750, 0x14}, - {0x4540, 0x00}, - {0x47b4, 0x14}, - {0x4713, 0x30}, - {0x478b, 0x10}, - {0x478f, 0x10}, - {0x4793, 0x10}, - {0x4797, 0x0e}, - {0x479b, 0x0e}, - {0x0162, 0x0d}, - {0x0163, 0x78}, }; static const struct imx219_reg mode_1920_1080_regs[] = { - {0x0100, 0x00}, - {0x30eb, 0x05}, - {0x30eb, 0x0c}, - {0x300a, 0xff}, - {0x300b, 0xff}, - {0x30eb, 0x05}, - {0x30eb, 0x09}, - {0x0114, 0x01}, - {0x0128, 0x00}, - {0x012a, 0x18}, - {0x012b, 0x00}, - {0x0162, 0x0d}, - {0x0163, 0x78}, {0x0164, 0x02}, {0x0165, 0xa8}, {0x0166, 0x0a}, @@ -233,49 +233,15 @@ static const struct imx219_reg mode_1920_1080_regs[] = { {0x016d, 0x80}, {0x016e, 0x04}, {0x016f, 0x38}, - {0x0170, 0x01}, - {0x0171, 0x01}, - {0x0174, 0x00}, + {0x0174, 0x00}, /* No-Binning */ {0x0175, 0x00}, - {0x0301, 0x05}, - {0x0303, 0x01}, - {0x0304, 0x03}, - {0x0305, 0x03}, - {0x0306, 0x00}, - {0x0307, 0x39}, - {0x030b, 0x01}, - {0x030c, 0x00}, - {0x030d, 0x72}, {0x0624, 0x07}, {0x0625, 0x80}, {0x0626, 0x04}, {0x0627, 0x38}, - {0x455e, 0x00}, - {0x471e, 0x4b}, - {0x4767, 0x0f}, - {0x4750, 0x14}, - {0x4540, 0x00}, - {0x47b4, 0x14}, - {0x4713, 0x30}, - {0x478b, 0x10}, - {0x478f, 0x10}, - {0x4793, 0x10}, - {0x4797, 0x0e}, - {0x479b, 0x0e}, }; static const struct imx219_reg mode_1640_1232_regs[] = { - {0x0100, 0x00}, - {0x30eb, 0x0c}, - {0x30eb, 0x05}, - {0x300a, 0xff}, - {0x300b, 0xff}, - {0x30eb, 0x05}, - {0x30eb, 0x09}, - {0x0114, 0x01}, - {0x0128, 0x00}, - {0x012a, 0x18}, - {0x012b, 0x00}, {0x0164, 0x00}, {0x0165, 0x00}, {0x0166, 0x0c}, @@ -288,53 +254,15 @@ static const struct imx219_reg mode_1640_1232_regs[] = { {0x016d, 0x68}, {0x016e, 0x04}, {0x016f, 0xd0}, - {0x0170, 0x01}, - {0x0171, 0x01}, - {0x0174, 0x01}, + {0x0174, 0x01}, /* x2-Binning */ {0x0175, 0x01}, - {0x0301, 0x05}, - {0x0303, 0x01}, - {0x0304, 0x03}, - {0x0305, 0x03}, - {0x0306, 0x00}, - {0x0307, 0x39}, - {0x030b, 0x01}, - {0x030c, 0x00}, - {0x030d, 0x72}, {0x0624, 0x06}, {0x0625, 0x68}, {0x0626, 0x04}, {0x0627, 0xd0}, - {0x455e, 0x00}, - {0x471e, 0x4b}, - {0x4767, 0x0f}, - {0x4750, 0x14}, - {0x4540, 0x00}, - {0x47b4, 0x14}, - {0x4713, 0x30}, - {0x478b, 0x10}, - {0x478f, 0x10}, - {0x4793, 0x10}, - {0x4797, 0x0e}, - {0x479b, 0x0e}, - {0x0162, 0x0d}, - {0x0163, 0x78}, }; static const struct imx219_reg mode_640_480_regs[] = { - {0x0100, 0x00}, - {0x30eb, 0x05}, - {0x30eb, 0x0c}, - {0x300a, 0xff}, - {0x300b, 0xff}, - {0x30eb, 0x05}, - {0x30eb, 0x09}, - {0x0114, 0x01}, - {0x0128, 0x00}, - {0x012a, 0x18}, - {0x012b, 0x00}, - {0x0162, 0x0d}, - {0x0163, 0x78}, {0x0164, 0x03}, {0x0165, 0xe8}, {0x0166, 0x08}, @@ -347,35 +275,12 @@ static const struct imx219_reg mode_640_480_regs[] = { {0x016d, 0x80}, {0x016e, 0x01}, {0x016f, 0xe0}, - {0x0170, 0x01}, - {0x0171, 0x01}, - {0x0174, 0x03}, + {0x0174, 0x03}, /* x2-analog binning */ {0x0175, 0x03}, - {0x0301, 0x05}, - {0x0303, 0x01}, - {0x0304, 0x03}, - {0x0305, 0x03}, - {0x0306, 0x00}, - {0x0307, 0x39}, - {0x030b, 0x01}, - {0x030c, 0x00}, - {0x030d, 0x72}, {0x0624, 0x06}, {0x0625, 0x68}, {0x0626, 0x04}, {0x0627, 0xd0}, - {0x455e, 0x00}, - {0x471e, 0x4b}, - {0x4767, 0x0f}, - {0x4750, 0x14}, - {0x4540, 0x00}, - {0x47b4, 0x14}, - {0x4713, 0x30}, - {0x478b, 0x10}, - {0x478f, 0x10}, - {0x4793, 0x10}, - {0x4797, 0x0e}, - {0x479b, 0x0e}, }; static const struct imx219_reg raw8_framefmt_regs[] = { @@ -1041,6 +946,13 @@ static int imx219_start_streaming(struct imx219 *imx219) if (ret < 0) return ret; + /* Send all registers that are common to all modes */ + ret = imx219_write_regs(imx219, imx219_common_regs, ARRAY_SIZE(imx219_common_regs)); + if (ret) { + dev_err(&client->dev, "%s failed to send mfg header\n", __func__); + goto err_rpm_put; + } + /* Apply default values of current mode */ reg_list = &imx219->mode->reg_list; ret = imx219_write_regs(imx219, reg_list->regs, reg_list->num_of_regs); From patchwork Sat Jul 9 13:50:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adam Ford X-Patchwork-Id: 84689 Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1oAAra-003itv-Re; Sat, 09 Jul 2022 13:51:15 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229679AbiGINvG (ORCPT + 1 other); 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Sat, 09 Jul 2022 06:51:03 -0700 (PDT) From: Adam Ford To: linux-media@vger.kernel.org Cc: dave.stevenson@raspberrypi.com, mchehab@kernel.org, linux-kernel@vger.kernel.org, Adam Ford Subject: [PATCH 2/2] media: i2c: imx219: Support four-lane operation Date: Sat, 9 Jul 2022 08:50:52 -0500 Message-Id: <20220709135052.3850913-2-aford173@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220709135052.3850913-1-aford173@gmail.com> References: <20220709135052.3850913-1-aford173@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,FREEMAIL_FORGED_FROMDOMAIN=0.001,FREEMAIL_FROM=0.001,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no The imx219 camera is capable of either two-lane or four-lane operation. When operating in four-lane, both the pixel rate and link frequency change. Regardless of the mode, however, both frequencies remain fixed. Helper functions are needed to read and set pixel and link frequencies which also reduces the number of fixed registers in the table of modes. Since the link frequency and number of lanes is extracted from the endpoint, move the endpoint handling into the probe function and out of the imx219_check_hwcfg. This simplifies the imx219_check_hwcfg just a bit. Signed-off-by: Adam Ford --- V3: Keep the helper function doing the link and lane parsing to keep th probe function small. diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c index faa5dab3c2ec..bb4125e7e113 100644 --- a/drivers/media/i2c/imx219.c +++ b/drivers/media/i2c/imx219.c @@ -42,10 +42,16 @@ /* External clock frequency is 24.0M */ #define IMX219_XCLK_FREQ 24000000 -/* Pixel rate is fixed at 182.4M for all the modes */ +/* Pixel rate is fixed for all the modes */ #define IMX219_PIXEL_RATE 182400000 +#define IMX219_PIXEL_RATE_4LANE 280800000 #define IMX219_DEFAULT_LINK_FREQ 456000000 +#define IMX219_DEFAULT_LINK_FREQ_4LANE 363000000 + +#define IMX219_REG_CSI_LANE_MODE 0x0114 +#define IMX219_CSI_2_LANE_MODE 0x01 +#define IMX219_CSI_4_LANE_MODE 0x03 /* V_TIMING internal */ #define IMX219_REG_VTS 0x0160 @@ -299,6 +305,10 @@ static const s64 imx219_link_freq_menu[] = { IMX219_DEFAULT_LINK_FREQ, }; +static const s64 imx219_link_freq_4lane_menu[] = { + IMX219_DEFAULT_LINK_FREQ_4LANE, +}; + static const char * const imx219_test_pattern_menu[] = { "Disabled", "Color Bars", @@ -474,6 +484,9 @@ struct imx219 { /* Streaming on/off */ bool streaming; + + /* Two or Four lanes */ + u8 lanes; }; static inline struct imx219 *to_imx219(struct v4l2_subdev *_sd) @@ -936,6 +949,13 @@ static int imx219_get_selection(struct v4l2_subdev *sd, return -EINVAL; } +static int imx219_configure_lanes(struct imx219 *imx219) +{ + return imx219_write_reg(imx219, IMX219_REG_CSI_LANE_MODE, + IMX219_REG_VALUE_08BIT, (imx219->lanes == 2) ? + IMX219_CSI_2_LANE_MODE : IMX219_CSI_4_LANE_MODE); +}; + static int imx219_start_streaming(struct imx219 *imx219) { struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); @@ -953,6 +973,13 @@ static int imx219_start_streaming(struct imx219 *imx219) goto err_rpm_put; } + /* Configure two or four Lane mode */ + ret = imx219_configure_lanes(imx219); + if (ret) { + dev_err(&client->dev, "%s failed to configure lanes\n", __func__); + goto err_rpm_put; + } + /* Apply default values of current mode */ reg_list = &imx219->mode->reg_list; ret = imx219_write_regs(imx219, reg_list->regs, reg_list->num_of_regs); @@ -1184,6 +1211,11 @@ static const struct v4l2_subdev_internal_ops imx219_internal_ops = { .open = imx219_open, }; +static unsigned long imx219_get_pixel_rate(struct imx219 *imx219) +{ + return (imx219->lanes == 2) ? IMX219_PIXEL_RATE : IMX219_PIXEL_RATE_4LANE; +} + /* Initialize control handlers */ static int imx219_init_controls(struct imx219 *imx219) { @@ -1205,15 +1237,16 @@ static int imx219_init_controls(struct imx219 *imx219) /* By default, PIXEL_RATE is read only */ imx219->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, V4L2_CID_PIXEL_RATE, - IMX219_PIXEL_RATE, - IMX219_PIXEL_RATE, 1, - IMX219_PIXEL_RATE); + imx219_get_pixel_rate(imx219), + imx219_get_pixel_rate(imx219), 1, + imx219_get_pixel_rate(imx219)); imx219->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &imx219_ctrl_ops, V4L2_CID_LINK_FREQ, ARRAY_SIZE(imx219_link_freq_menu) - 1, 0, - imx219_link_freq_menu); + (imx219->lanes == 2) ? imx219_link_freq_menu : + imx219_link_freq_4lane_menu); if (imx219->link_freq) imx219->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; @@ -1308,7 +1341,7 @@ static void imx219_free_controls(struct imx219 *imx219) mutex_destroy(&imx219->mutex); } -static int imx219_check_hwcfg(struct device *dev) +static int imx219_check_hwcfg(struct device *dev, struct imx219 *imx219) { struct fwnode_handle *endpoint; struct v4l2_fwnode_endpoint ep_cfg = { @@ -1328,10 +1361,12 @@ static int imx219_check_hwcfg(struct device *dev) } /* Check the number of MIPI CSI2 data lanes */ - if (ep_cfg.bus.mipi_csi2.num_data_lanes != 2) { - dev_err(dev, "only 2 data lanes are currently supported\n"); + if (ep_cfg.bus.mipi_csi2.num_data_lanes != 2 && + ep_cfg.bus.mipi_csi2.num_data_lanes != 4) { + dev_err(dev, "only 2 or 4 data lanes are currently supported\n"); goto error_out; } + imx219->lanes = ep_cfg.bus.mipi_csi2.num_data_lanes; /* Check the link frequency set in device tree */ if (!ep_cfg.nr_of_link_frequencies) { @@ -1339,8 +1374,8 @@ static int imx219_check_hwcfg(struct device *dev) goto error_out; } - if (ep_cfg.nr_of_link_frequencies != 1 || - ep_cfg.link_frequencies[0] != IMX219_DEFAULT_LINK_FREQ) { + if (ep_cfg.link_frequencies[0] != ((imx219->lanes == 2) ? + IMX219_DEFAULT_LINK_FREQ : IMX219_DEFAULT_LINK_FREQ_4LANE)) { dev_err(dev, "Link frequency not supported: %lld\n", ep_cfg.link_frequencies[0]); goto error_out; @@ -1368,7 +1403,7 @@ static int imx219_probe(struct i2c_client *client) v4l2_i2c_subdev_init(&imx219->sd, client, &imx219_subdev_ops); /* Check the hardware configuration in device tree */ - if (imx219_check_hwcfg(dev)) + if (imx219_check_hwcfg(dev, imx219)) return -EINVAL; /* Get system clock (xclk) */