From patchwork Wed Mar 27 23:16:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Garcia X-Patchwork-Id: 783416 Received: from mail-108-mta2.mxroute.com (mail-108-mta2.mxroute.com [136.175.108.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BA17A156221 for ; Wed, 27 Mar 2024 23:23:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=136.175.108.2 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711581793; cv=none; b=nYoIQ2W579hy2F0uhxvQzsNB60gm4RtkjxOz+GTCKuTtc3pw4kNyu5Eb/UP322VPqikNGw3OZFz0Zhe/5bAAMmnHgKfmQYRUfHVtorG+0LrIOxmNv+2iUnfq11tCaeSXaZkhkz+kuQyHitSgpCspu2O9WrlHIClwyKmM6s2OjPc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711581793; c=relaxed/simple; bh=zpwx5OxJWYlYVMYFl5htgqXaFY/A560ArRuvTJuVbFM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Z+p4WNQX1y6quEYEMr7BHdNS8CBUjgeX52YoHqSbpJWR60zWxxKoDMf7P4Nxf350KOv3e7JINQmzYOXiX/U3M+e340oX5+Ng5svol+7rsstsLlTdhZuDsMbL6SYYo+rN33HsQo/1oyKrSizdk1vPT8c2bdyz+ygtXPFBhaTVIBY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=luigi311.com; spf=pass smtp.mailfrom=luigi311.com; dkim=pass (2048-bit key) header.d=luigi311.com header.i=@luigi311.com header.b=lVyuabTn; arc=none smtp.client-ip=136.175.108.2 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=luigi311.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=luigi311.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=luigi311.com header.i=@luigi311.com header.b="lVyuabTn" Received: from filter006.mxroute.com ([136.175.111.2] filter006.mxroute.com) (Authenticated sender: mN4UYu2MZsgR) by mail-108-mta2.mxroute.com (ZoneMTA) with ESMTPSA id 18e82345f620003bea.010 for (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384); Wed, 27 Mar 2024 23:17:34 +0000 X-Zone-Loop: 04dd5519de9b3fc88a6f22942ed62b5b04a5a6591cee DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=luigi311.com; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=v0tIOtHXLmE3QmL+EJPups6PUsU/L3wQwMMW/4d4ByM=; b=lVyuabTnwkHJM6p1tFAbhIuqil PUZ5H45YLHwaz/i8lh45Jt8mpARdo3UgcF0jg8VOGYrOj6oRg63bY3CyWvq+01IY/Gb+ezgIlo2F0 eNkKLLc6p/uFN1o63NI1tlyyDn7HCeCZQRpsetnecox44/craYveTWZ9WAJxu+3sMJYYcMbWaWrkd p7X8cxtkijRzfJBBvXw50ZHx4+ZciSzP4WhY1a8X7cl+cLbxKAZ2DrQ+h71y7aQxekhwTYTcEqATc aD/9orBkq0x8grE4kjcVpQpcX/5GKdAwcnGaoMwm6CDvVJRIDe4k8gmZgXEf0Hb+1kT+MoZh66S59 ENJZnlrA==; 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, conor+dt@kernel.org, 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, Luigi311 Subject: [PATCH 08/23] media: i2c: imx258: Add support for 24MHz clock Date: Wed, 27 Mar 2024 17:16:54 -0600 Message-ID: <20240327231710.53188-9-git@luigi311.com> In-Reply-To: <20240327231710.53188-1-git@luigi311.com> References: <20240327231710.53188-1-git@luigi311.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Authenticated-Id: personal@luigi311.com From: Dave Stevenson 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 Signed-off-by: Luigi311 --- drivers/media/i2c/imx258.c | 133 +++++++++++++++++++++++++++++-------- 1 file changed, 107 insertions(+), 26 deletions(-) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index 351add1bc5d5..6ee7de079454 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; @@ -115,7 +112,9 @@ 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 +132,29 @@ 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 +172,27 @@ 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 +352,6 @@ 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 +370,55 @@ 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_data_rate_1267mbps), - .regs = mipi_data_rate_1267mbps, + .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_data_rate_640mbps), - .regs = mipi_data_rate_640mbps, + .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_1272mbps_24mhz), + .regs = mipi_1272mbps_24mhz, + } + }, + [IMX258_LINK_FREQ_640MBPS] = { + .pixels_per_line = IMX258_PPL_DEFAULT, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mipi_642mbps_24mhz), + .regs = mipi_642mbps_24mhz, } }, }; @@ -410,6 +475,9 @@ 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. @@ -713,7 +781,7 @@ 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 */ @@ -727,7 +795,7 @@ 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); @@ -747,7 +815,7 @@ 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__); @@ -946,9 +1014,9 @@ 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; @@ -964,8 +1032,10 @@ 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, @@ -1086,8 +1156,19 @@ static int imx258_probe(struct i2c_client *client) } 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; }