From patchwork Mon Sep 2 21:54:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andr=C3=A9_Apitzsch_via_B4_Relay?= X-Patchwork-Id: 13787708 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 DBD8218734F; Mon, 2 Sep 2024 21:53:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725314032; cv=none; b=dhsB4E//1e2mhZT1phxiswHUU2kncCAFICYryoTvSC0+Nnol6gHxUjsTi8A0x5W+a99Bdy8BWJ/C/cwCN9RR9qmvOy8la0LHuHfGg5ZzpWuhXm9AHoxyVoaN+Fr7Nk0qzLLeXIdKBuzaS8MmnyOEo3KGBbb+RNwT59V//yAF5Vs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725314032; c=relaxed/simple; bh=u4k//ftranAyHfaWRFE94pp5dKlYztg9mRoWGurHKIY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=HRltZp6nu+nJNUy86FyDzTMozx91i1LwGFdsQhJs9IYDNKd5Zo0TTw3j7AR8hNirNBVNfgxjTSgVY3WkBa4yQZmzPeeBdCVOlQMSN6SZSme8TXRdlovLtuunpwzAM8gaj960/PbB0NlIwQNkCCh3zP/W+UwR1HpXzXQ4RxLOZgU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Vz4ua+Ah; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Vz4ua+Ah" Received: by smtp.kernel.org (Postfix) with ESMTPS id A3A33C4CED8; Mon, 2 Sep 2024 21:53:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725314031; bh=u4k//ftranAyHfaWRFE94pp5dKlYztg9mRoWGurHKIY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=Vz4ua+AhIn5ZkrtoQjzsMqBzBJjwE5bs0oGwuVm4jfCEU6cVaLMV4ZzY2xQmYDcSN KpleNfuF1amL5F5B/2s6WljJZzcTDRwrlCBJ0MfxmO8AkdCiFZpWDenGW4IDZJabwt AdTVoFx/7849d7eZeuHMS8bxuJVyIS3L1P6KQttSiSiO6TwBrY4ZI+AmgqScWHlrH1 lsga7Q7bdOhORj6OePEzSgi7NUAihe68yqvPGM7rErn955aGP2q0jVwyzdzE03UH/1 xu1+wxy56+nLIsC64L+TutN/lo+Hs7dXdg9NdLjeWRwrEudvOxu8iowND6l3QNKEjo WqNltoPYStDhQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C1E3CA0ED3; Mon, 2 Sep 2024 21:53:51 +0000 (UTC) From: =?utf-8?q?Andr=C3=A9_Apitzsch_via_B4_Relay?= Date: Mon, 02 Sep 2024 23:54:34 +0200 Subject: [PATCH 07/13] media: i2c: imx214: Use number of lanes from device tree Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240902-imx214-v1-7-c96cba989315@apitzsch.eu> References: <20240902-imx214-v1-0-c96cba989315@apitzsch.eu> In-Reply-To: <20240902-imx214-v1-0-c96cba989315@apitzsch.eu> To: Ricardo Ribalda , Sakari Ailus , Mauro Carvalho Chehab Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Andr?= =?utf-8?q?=C3=A9_Apitzsch?= X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1725314079; l=3540; i=git@apitzsch.eu; s=20240325; h=from:subject:message-id; bh=m5goLAFXtgpfapHH2PqZgsTZuL4USkSmaYIJRA7+tqE=; b=yB16JPOVVPecOms6nMVAbj2oyasPNB8xbbuFc5PRcx9HjWiX+d89BaNPgSRpo6+nOquEZt4M/ acrqCJzVzlkD8KyDtz+5C8rlG1o2y4CoqI5Ch9iYmvzbMD0OWX0V1U8 X-Developer-Key: i=git@apitzsch.eu; a=ed25519; pk=wxovcZRfvNYBMcTw4QFFtNEP4qv39gnBfnfyImXZxiU= X-Endpoint-Received: by B4 Relay for git@apitzsch.eu/20240325 with auth_id=142 X-Original-From: =?utf-8?q?Andr=C3=A9_Apitzsch?= Reply-To: git@apitzsch.eu From: André Apitzsch The imx214 camera is capable of either two-lane or four-lane operation. Currently only the four-lane mode is supported, as proper pixel rates and link frequences for the two-lane mode are unknown. Signed-off-by: André Apitzsch --- drivers/media/i2c/imx214.c | 37 ++++++++++++++++++++++++++++++------- 1 file changed, 30 insertions(+), 7 deletions(-) diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c index 4507e12dd4cd..3b422cddbdce 100644 --- a/drivers/media/i2c/imx214.c +++ b/drivers/media/i2c/imx214.c @@ -195,11 +195,13 @@ struct imx214 { struct regulator_bulk_data supplies[IMX214_NUM_SUPPLIES]; struct gpio_desc *enable_gpio; + + /* Two or Four lanes */ + u8 lanes; }; /*From imx214_mode_tbls.h*/ static const struct cci_reg_sequence mode_4096x2304[] = { - { IMX214_REG_CSI_LANE_MODE, IMX214_CSI_4_LANE_MODE }, { IMX214_REG_HDR_MODE, IMX214_HDR_MODE_OFF }, { IMX214_REG_HDR_RES_REDUCTION, IMX214_HDR_RES_REDU_THROUGH }, { IMX214_REG_EXPOSURE_RATIO, 1 }, @@ -272,7 +274,6 @@ static const struct cci_reg_sequence mode_4096x2304[] = { }; static const struct cci_reg_sequence mode_1920x1080[] = { - { IMX214_REG_CSI_LANE_MODE, IMX214_CSI_4_LANE_MODE }, { IMX214_REG_HDR_MODE, IMX214_HDR_MODE_OFF }, { IMX214_REG_HDR_RES_REDUCTION, IMX214_HDR_RES_REDU_THROUGH }, { IMX214_REG_EXPOSURE_RATIO, 1 }, @@ -774,6 +775,13 @@ static int imx214_ctrls_init(struct imx214 *imx214) return 0; }; +static int imx214_configure_lanes(struct imx214 *imx214) +{ + return cci_write(imx214->regmap, IMX214_REG_CSI_LANE_MODE, + imx214->lanes == 2 ? IMX214_CSI_2_LANE_MODE : + IMX214_CSI_4_LANE_MODE, NULL); +}; + static int imx214_start_streaming(struct imx214 *imx214) { const struct imx214_mode *mode; @@ -786,6 +794,13 @@ static int imx214_start_streaming(struct imx214 *imx214) return ret; } + /* Configure two or four Lane mode */ + ret = imx214_configure_lanes(imx214); + if (ret) { + dev_err(imx214->dev, "%s failed to configure lanes\n", __func__); + return ret; + } + mode = v4l2_find_nearest_size(imx214_modes, ARRAY_SIZE(imx214_modes), width, height, imx214->fmt.width, imx214->fmt.height); @@ -930,7 +945,7 @@ static int imx214_get_regulators(struct device *dev, struct imx214 *imx214) imx214->supplies); } -static int imx214_parse_fwnode(struct device *dev) +static int imx214_parse_fwnode(struct device *dev, struct imx214 *imx214) { struct fwnode_handle *endpoint; struct v4l2_fwnode_endpoint bus_cfg = { @@ -949,6 +964,14 @@ static int imx214_parse_fwnode(struct device *dev) goto done; } + /* Check the number of MIPI CSI2 data lanes */ + if (bus_cfg.bus.mipi_csi2.num_data_lanes != 4) { + dev_err_probe(dev, -EINVAL, + "only 4 data lanes are currently supported\n"); + goto done; + } + imx214->lanes = bus_cfg.bus.mipi_csi2.num_data_lanes; + for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++) if (bus_cfg.link_frequencies[i] == IMX214_DEFAULT_LINK_FREQ) break; @@ -973,14 +996,14 @@ static int imx214_probe(struct i2c_client *client) struct imx214 *imx214; int ret; - ret = imx214_parse_fwnode(dev); - if (ret) - return ret; - imx214 = devm_kzalloc(dev, sizeof(*imx214), GFP_KERNEL); if (!imx214) return -ENOMEM; + ret = imx214_parse_fwnode(dev, imx214); + if (ret) + return ret; + imx214->dev = dev; imx214->xclk = devm_clk_get(dev, NULL);