From patchwork Tue May 30 17:29:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Stevenson X-Patchwork-Id: 687042 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5542CC7EE23 for ; Tue, 30 May 2023 17:31:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233418AbjE3Ra7 (ORCPT ); Tue, 30 May 2023 13:30:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58688 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233429AbjE3Ra4 (ORCPT ); Tue, 30 May 2023 13:30:56 -0400 Received: from mail-wr1-x434.google.com (mail-wr1-x434.google.com [IPv6:2a00:1450:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DB439EA for ; Tue, 30 May 2023 10:30:41 -0700 (PDT) Received: by mail-wr1-x434.google.com with SMTP id ffacd0b85a97d-30aebe2602fso1792749f8f.3 for ; Tue, 30 May 2023 10:30:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=raspberrypi.com; s=google; t=1685467840; x=1688059840; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=wc3ytaiyab5qcNXXV08KfBLcECyWOvHwoS6EBmpUcn4=; b=Yv2tt9qAl3AF04PSVbTldrI2Lyt/9iXkbs0AC5pSN6eXYx2sI9r9DOtLf9erG2MzUo 6BNDSb9hSXDnyt2ttzWBfe4v6sMB+4G0YpXBtmsBOnr8obBItMH6vhHxfLb1DuF1E0n7 E3TG3Hhis4IKOEXN4jeLL+j1oRbBnqLlb8MRDtalzddRfIdKNmiGH1k0IMiedemX2es+ huAo03fUzUfO35AoDBKWV2EHVjhJa8Q2FdnrhXH+PD/soU0BrHFvVcYiHpqrHMSkS7Vm M3dMJGDdIFKdVS+RlOU2IAxgUw5vet6Re7LoSgT3hphi9y2HedoeRgr/k6Ax14fbkQUO 6lXg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685467840; x=1688059840; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=wc3ytaiyab5qcNXXV08KfBLcECyWOvHwoS6EBmpUcn4=; b=fSfTaZgOUVthYZmc0ArK81jTfFyf/bG28HZE2JDXI3zvjQp6hfuAaKT3HRyPDAo6Zo hqYiHq4s632gH8J2YK0iCNwNEQYrvxRkp8VcXqPZpQqzlxt6ce23v2L/ss/kJ3iC5Krt PhHfHDXkz/i60zXJfpwAY+lFtrF1Yy24kuHaYpgdWESZMgI2fv4wc9E0EvSXJGtofyim UGc51LRpTXrI41oKx8b+wEs3wrgUv5C8sodZFyCW5H54l3wQFxD/7rdTv2IjHe3A21nF GhCIjITalDi7l0+lZffDlZ9eKqSt9VD+MZAdg5Vl+DXNac63oMbxRMczodnuUQ4c8guv 8LXQ== X-Gm-Message-State: AC+VfDzka80Ft2p22zm0FGs6LHAIs8wTR5OmF2DwNqKoY3oyX3DJetBK JyVVYDjSUwutRtQs0NxJ3NBYU/z2sLdjRMBKGgU= X-Google-Smtp-Source: ACHHUZ6X3KwAeXAuK7do058CkuaiW9UJD6s9hSg7Q9v7TT64DVpSFPQIOKNIMq5ugQPFBuz1RGEZmA== X-Received: by 2002:adf:e44d:0:b0:30a:b030:9cdd with SMTP id t13-20020adfe44d000000b0030ab0309cddmr2099995wrm.25.1685467840417; Tue, 30 May 2023 10:30:40 -0700 (PDT) Received: from dave-Ubuntu2204.pitowers.org ([93.93.133.154]) by smtp.googlemail.com with ESMTPSA id h14-20020a056000000e00b0030ae901bc54sm3964823wrx.62.2023.05.30.10.30.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 May 2023 10:30:39 -0700 (PDT) From: Dave Stevenson To: Sakari Ailus , linux-media@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org Cc: Dave Stevenson Subject: [PATCH 08/21] media: i2c: imx258: Add support for 24MHz clock Date: Tue, 30 May 2023 18:29:47 +0100 Message-Id: <20230530173000.3060865-9-dave.stevenson@raspberrypi.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230530173000.3060865-1-dave.stevenson@raspberrypi.com> References: <20230530173000.3060865-1-dave.stevenson@raspberrypi.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org There's no reason why only a clock of 19.2MHz is supported. Indeed this isn't even a frequency listed in the datasheet. Add support for 24MHz as well. The PLL settings result in slightly different link frequencies, so parameterise those. Signed-off-by: Dave Stevenson --- drivers/media/i2c/imx258.c | 137 ++++++++++++++++++++++++++++++------- 1 file changed, 111 insertions(+), 26 deletions(-) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index 5a57d0b5fcd8..d40521f9a3c6 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -76,9 +76,6 @@ #define REG_CONFIG_MIRROR_FLIP 0x03 #define REG_CONFIG_FLIP_TEST_PATTERN 0x02 -/* Input clock frequency in Hz */ -#define IMX258_INPUT_CLOCK_FREQ 19200000 - struct imx258_reg { u16 address; u8 val; @@ -91,6 +88,7 @@ struct imx258_reg_list { /* Link frequency config */ struct imx258_link_freq_config { + u64 link_frequency; u32 pixels_per_line; /* PLL registers for this link frequency */ @@ -115,7 +113,9 @@ struct imx258_mode { }; /* 4208x3120 needs 1267Mbps/lane, 4 lanes */ -static const struct imx258_reg mipi_data_rate_1267mbps[] = { +static const struct imx258_reg mipi_1267mbps_19_2mhz[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, { 0x0301, 0x05 }, { 0x0303, 0x02 }, { 0x0305, 0x03 }, @@ -133,7 +133,29 @@ static const struct imx258_reg mipi_data_rate_1267mbps[] = { { 0x0823, 0xCC }, }; -static const struct imx258_reg mipi_data_rate_640mbps[] = { +static const struct imx258_reg mipi_1272mbps_24mhz[] = { + { 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 }, + { 0x0820, 0x13 }, + { 0x0821, 0x4C }, + { 0x0822, 0xCC }, + { 0x0823, 0xCC }, +}; + +static const struct imx258_reg mipi_640mbps_19_2mhz[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, { 0x0301, 0x05 }, { 0x0303, 0x02 }, { 0x0305, 0x03 }, @@ -151,9 +173,27 @@ static const struct imx258_reg mipi_data_rate_640mbps[] = { { 0x0823, 0x00 }, }; +static const struct imx258_reg mipi_642mbps_24mhz[] = { + { 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 }, + { 0x0820, 0x0A }, + { 0x0821, 0x00 }, + { 0x0822, 0x00 }, + { 0x0823, 0x00 }, +}; + static const struct imx258_reg mode_common_regs[] = { - { 0x0136, 0x13 }, - { 0x0137, 0x33 }, { 0x3051, 0x00 }, { 0x3052, 0x00 }, { 0x4E21, 0x14 }, @@ -313,10 +353,6 @@ static const char * const imx258_supply_name[] = { #define IMX258_NUM_SUPPLIES ARRAY_SIZE(imx258_supply_name) -/* Configurations for supported link frequencies */ -#define IMX258_LINK_FREQ_634MHZ 633600000ULL -#define IMX258_LINK_FREQ_320MHZ 320000000ULL - enum { IMX258_LINK_FREQ_1267MBPS, IMX258_LINK_FREQ_640MBPS, @@ -335,25 +371,55 @@ static u64 link_freq_to_pixel_rate(u64 f) } /* Menu items for LINK_FREQ V4L2 control */ -static const s64 link_freq_menu_items[] = { +/* Configurations for supported link frequencies */ +#define IMX258_LINK_FREQ_634MHZ 633600000ULL +#define IMX258_LINK_FREQ_320MHZ 320000000ULL + +static const s64 link_freq_menu_items_19_2[] = { IMX258_LINK_FREQ_634MHZ, IMX258_LINK_FREQ_320MHZ, }; +/* Configurations for supported link frequencies */ +#define IMX258_LINK_FREQ_636MHZ 636000000ULL +#define IMX258_LINK_FREQ_321MHZ 321000000ULL + +static const s64 link_freq_menu_items_24[] = { + IMX258_LINK_FREQ_636MHZ, + IMX258_LINK_FREQ_321MHZ, +}; + /* Link frequency configs */ -static const struct imx258_link_freq_config link_freq_configs[] = { +static const struct imx258_link_freq_config link_freq_configs_19_2[] = { + [IMX258_LINK_FREQ_1267MBPS] = { + .pixels_per_line = IMX258_PPL_DEFAULT, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mipi_1267mbps_19_2mhz), + .regs = mipi_1267mbps_19_2mhz, + } + }, + [IMX258_LINK_FREQ_640MBPS] = { + .pixels_per_line = IMX258_PPL_DEFAULT, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mipi_640mbps_19_2mhz), + .regs = mipi_640mbps_19_2mhz, + } + }, +}; + +static const struct imx258_link_freq_config link_freq_configs_24[] = { [IMX258_LINK_FREQ_1267MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { - .num_of_regs = ARRAY_SIZE(mipi_data_rate_1267mbps), - .regs = mipi_data_rate_1267mbps, + .num_of_regs = ARRAY_SIZE(mipi_1272mbps_24mhz), + .regs = mipi_1272mbps_24mhz, } }, [IMX258_LINK_FREQ_640MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { - .num_of_regs = ARRAY_SIZE(mipi_data_rate_640mbps), - .regs = mipi_data_rate_640mbps, + .num_of_regs = ARRAY_SIZE(mipi_642mbps_24mhz), + .regs = mipi_642mbps_24mhz, } }, }; @@ -410,6 +476,9 @@ struct imx258 { /* Current mode */ const struct imx258_mode *cur_mode; + const struct imx258_link_freq_config *link_freq_configs; + const s64 *link_freq_menu_items; + /* * Mutex for serialized access: * Protect sensor module set pad format and start/stop streaming safely. @@ -717,7 +786,7 @@ static int imx258_set_pad_format(struct v4l2_subdev *sd, imx258->cur_mode = mode; __v4l2_ctrl_s_ctrl(imx258->link_freq, mode->link_freq_index); - link_freq = link_freq_menu_items[mode->link_freq_index]; + link_freq = imx258->link_freq_menu_items[mode->link_freq_index]; pixel_rate = link_freq_to_pixel_rate(link_freq); __v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate); /* Update limits and set FPS to default */ @@ -731,7 +800,7 @@ static int imx258_set_pad_format(struct v4l2_subdev *sd, vblank_def); __v4l2_ctrl_s_ctrl(imx258->vblank, vblank_def); h_blank = - link_freq_configs[mode->link_freq_index].pixels_per_line + imx258->link_freq_configs[mode->link_freq_index].pixels_per_line - imx258->cur_mode->width; __v4l2_ctrl_modify_range(imx258->hblank, h_blank, h_blank, 1, h_blank); @@ -751,7 +820,7 @@ static int imx258_start_streaming(struct imx258 *imx258) /* Setup PLL */ link_freq_index = imx258->cur_mode->link_freq_index; - reg_list = &link_freq_configs[link_freq_index].reg_list; + reg_list = &imx258->link_freq_configs[link_freq_index].reg_list; ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); if (ret) { dev_err(&client->dev, "%s failed to set plls\n", __func__); @@ -986,9 +1055,9 @@ static int imx258_init_controls(struct imx258 *imx258) imx258->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_LINK_FREQ, - ARRAY_SIZE(link_freq_menu_items) - 1, + ARRAY_SIZE(link_freq_menu_items_19_2) - 1, 0, - link_freq_menu_items); + imx258->link_freq_menu_items); if (imx258->link_freq) imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; @@ -1004,8 +1073,10 @@ static int imx258_init_controls(struct imx258 *imx258) if (vflip) vflip->flags |= V4L2_CTRL_FLAG_READ_ONLY; - pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]); - pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]); + pixel_rate_max = + link_freq_to_pixel_rate(imx258->link_freq_menu_items[0]); + pixel_rate_min = + link_freq_to_pixel_rate(imx258->link_freq_menu_items[1]); /* By default, PIXEL_RATE is read only */ imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_PIXEL_RATE, @@ -1123,11 +1194,25 @@ static int imx258_probe(struct i2c_client *client) "no clock provided, using clock-frequency property\n"); device_property_read_u32(&client->dev, "clock-frequency", &val); + } else if (IS_ERR(imx258->clk)) { + return dev_err_probe(&client->dev, PTR_ERR(imx258->clk), + "error getting clock\n"); } else { val = clk_get_rate(imx258->clk); } - if (val != IMX258_INPUT_CLOCK_FREQ) { - dev_err(&client->dev, "input clock frequency not supported\n"); + + switch (val) { + case 19200000: + imx258->link_freq_configs = link_freq_configs_19_2; + imx258->link_freq_menu_items = link_freq_menu_items_19_2; + break; + case 24000000: + imx258->link_freq_configs = link_freq_configs_24; + imx258->link_freq_menu_items = link_freq_menu_items_24; + break; + default: + dev_err(&client->dev, "input clock frequency of %u not supported\n", + val); return -EINVAL; }