From patchwork Sun Apr 14 20:34:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Garcia X-Patchwork-Id: 13629272 Received: from mail-108-mta200.mxroute.com (mail-108-mta200.mxroute.com [136.175.108.200]) (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 6E3A633987 for ; Sun, 14 Apr 2024 20:35:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=136.175.108.200 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713126931; cv=none; b=CK5e6TFrhqUQ7EsiQExiFDP2JNa10w0j0m370TVDhvYB279nJLaOyFmeMhyy9x0rPbxvQowVjklgl/gNYfjEu4QsO5jaOPBOMzgo/jIB9GjXnPd2gMxYFbnzwx3bTtlm7bClLSIC7oP1PpkHz3o4fLtFr/9Hfa6tgGZxNUS5bc0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713126931; c=relaxed/simple; bh=jyWrtrkRdIwLv8vFyOZgGaDw3f1409gIT2RgcJyPZ/o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pT0fPHh/2AXaYYuwkfvk8cnAZT5wjItDNHuC4B1D2uch1lv6BIkGFnmUDs+0jmFOJ/98Wku0p6fiK1+6JC4sgsAVSjLANi+EUaqmlqbVcs5mkhiqu70gUUoRzFpSJ1ybNg06OOdlKPbKMYn/BpEMRoGrIEGPNmHTu3+FvirTFzI= 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=pFHU8248; arc=none smtp.client-ip=136.175.108.200 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="pFHU8248" Received: from filter006.mxroute.com ([136.175.111.2] filter006.mxroute.com) (Authenticated sender: mN4UYu2MZsgR) by mail-108-mta200.mxroute.com (ZoneMTA) with ESMTPSA id 18ede526f510003bea.00a for (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384); Sun, 14 Apr 2024 20:35:28 +0000 X-Zone-Loop: fd9354d044620881709bf73210df3f3e5237d44697f2 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=+Z4CkPGkAS954uRQNPQhsFU7twZudFZFCOHeX0C/iOk=; b=pFHU8248SnJwIRvypLTnINked5 XxpYS1DTrDMbJ58sshcfDHp2SZLL3VedAoF5HH78oRY7IjuD7y1omB2QHEmp5FiiNmhD8DJgESw+q dnM+5on7o1ZmtXop8ZD0T7LfP2GZ0RtN3MtYmkxYHy9whV3Ipk5dQUIYo03h5O+ayc9kTiN/J/le6 yDM4hax6iR2VUYW8E4zI7EuuXhtwGesy+opp9vdCytI5WU/kUBA4TcbX6YW8tb0LTCjVEJg/9ueea ZVG23YoPBhY5GAfV0y6TGlmYQ8EWTmtUpk/a2w6TpI04CQCq3+XNgvytNIf+OLGOxKxPnWHvszeak wCPmW40g==; 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, pavel@ucw.cz, phone-devel@vger.kernel.org, Luis Garcia Subject: [PATCH v4 08/25] media: i2c: imx258: Add support for 24MHz clock Date: Sun, 14 Apr 2024 14:34:46 -0600 Message-ID: <20240414203503.18402-9-git@luigi311.com> In-Reply-To: <20240414203503.18402-1-git@luigi311.com> References: <20240414203503.18402-1-git@luigi311.com> Precedence: bulk X-Mailing-List: imx@lists.linux.dev 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: Luis Garcia Reviewed-by: Pavel Machek --- drivers/media/i2c/imx258.c | 130 +++++++++++++++++++++++++++++-------- 1 file changed, 102 insertions(+), 28 deletions(-) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index 351add1bc5d5..e4b1b3cbbde5 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 +370,48 @@ static u64 link_freq_to_pixel_rate(u64 f) } /* Menu items for LINK_FREQ V4L2 control */ -static const s64 link_freq_menu_items[] = { - IMX258_LINK_FREQ_634MHZ, - IMX258_LINK_FREQ_320MHZ, +/* Configurations for supported link frequencies */ +static const s64 link_freq_menu_items_19_2[] = { + 633600000ULL, + 320000000ULL, +}; + +static const s64 link_freq_menu_items_24[] = { + 636000000ULL, + 321000000ULL, }; /* 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 +468,9 @@ 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 +774,7 @@ 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 +788,7 @@ 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 +808,7 @@ 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 +1007,9 @@ 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 +1025,10 @@ 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 +1149,19 @@ 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; }