From patchwork Fri Aug 28 16:00:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 66645 X-Patchwork-Delegate: sakari.ailus@iki.fi Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1kBgio-005KjE-7u; Fri, 28 Aug 2020 15:55:23 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728300AbgH1QBH (ORCPT + 1 other); Fri, 28 Aug 2020 12:01:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:52322 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728417AbgH1QBD (ORCPT ); Fri, 28 Aug 2020 12:01:03 -0400 Received: from kozik-lap.mshome.net (unknown [194.230.155.216]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2E0502098B; Fri, 28 Aug 2020 16:00:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598630461; bh=cUKLGExJz2RcE5gBspH6LUaYtyfTA5PI8XGobETwgvk=; h=From:To:Cc:Subject:Date:From; b=iadQq1waQgmncxeH8RRxiOYnfm+e/sGq2kqlVH9J9fzrDBcXq/JUPdGwoA0feft+S 7KCxUljPKGqybMJqFIJSLFigEAVc+W3h9yvsbb9Gdm9fZhBnvlrHjMfPEcQtTChAEE zVZMvVucXEgouDEUPjYGEQdcya/cO5e3AUqdthnQ= From: Krzysztof Kozlowski To: Sakari Ailus , Mauro Carvalho Chehab , Rob Herring , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Krzysztof Kozlowski Subject: [PATCH 1/3] dt-bindings: media: imx258: Add bindings for IMX258 sensor Date: Fri, 28 Aug 2020 18:00:51 +0200 Message-Id: <20200828160053.6064-1-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -3.1 (---) X-LSpam-Report: No, score=-3.1 required=5.0 tests=BAYES_00=-1.9,DKIMWL_WL_HIGH=0.001,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,DKIM_VALID_EF=-0.1,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no Add bindings for the IMX258 camera sensor. The bindings, just like the driver, are quite limited, e.g. do not support regulator supplies. Signed-off-by: Krzysztof Kozlowski --- .../devicetree/bindings/media/i2c/imx258.yaml | 92 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 93 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/imx258.yaml diff --git a/Documentation/devicetree/bindings/media/i2c/imx258.yaml b/Documentation/devicetree/bindings/media/i2c/imx258.yaml new file mode 100644 index 000000000000..ef789ad31143 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/imx258.yaml @@ -0,0 +1,92 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/i2c/imx258.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Sony IMX258 13 Mpixel CMOS Digital Image Sensor + +maintainers: + - Krzysztof Kozlowski + +description: |- + IMX258 is a diagonal 5.867mm (Type 1/3.06) 13 Mega-pixel CMOS active pixel + type stacked image sensor with a square pixel array of size 4208 x 3120. It + is programmable through I2C interface. Image data is sent through MIPI + CSI-2. + +properties: + compatible: + const: sony,imx258 + + clocks: + maxItems: 1 + + clock-frequency: + description: Frequency of input clock if clock is not provided + deprecated: true + const: 19200000 + + reg: + maxItems: 1 + + # See ../video-interfaces.txt for more details + port: + type: object + properties: + endpoint: + type: object + properties: + data-lanes: + items: + - const: 1 + - const: 2 + - const: 3 + - const: 4 + + link-frequencies: + allOf: + - $ref: /schemas/types.yaml#/definitions/uint64-array + description: + Allowed data bus frequencies. + + required: + - data-lanes + - link-frequencies + +required: + - compatible + - reg + - port + + +if: + not: + required: + - clocks +then: + required: + - clock-frequency + +unevaluatedProperties: false + +examples: + - | + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + + sensor@6c { + compatible = "sony,imx258"; + reg = <0x6c>; + clocks = <&imx258_clk>; + + port { + imx258_ep: endpoint { + remote-endpoint = <&csi1_ep>; + data-lanes = <1 2 3 4>; + link-frequencies = /bits/ 64 <320000000>; + }; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index dc2aa691b75a..cca13d483d22 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -16130,6 +16130,7 @@ M: Sakari Ailus L: linux-media@vger.kernel.org S: Maintained T: git git://linuxtv.org/media_tree.git +F: Documentation/devicetree/bindings/media/i2c/imx258.yaml F: drivers/media/i2c/imx258.c SONY IMX274 SENSOR DRIVER From patchwork Fri Aug 28 16:00:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 66647 X-Patchwork-Delegate: sakari.ailus@iki.fi Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1kBgja-005Kwb-Hq; Fri, 28 Aug 2020 15:56:10 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728515AbgH1QBx (ORCPT + 1 other); Fri, 28 Aug 2020 12:01:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:52402 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728419AbgH1QBF (ORCPT ); Fri, 28 Aug 2020 12:01:05 -0400 Received: from kozik-lap.mshome.net (unknown [194.230.155.216]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6684F20DD4; Fri, 28 Aug 2020 16:01:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598630465; bh=oeFxheDeyKEU7Axch7cQ61Axd1RufsNZkjf2ilfJqBs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iAQJZ+5idRTVIilg9jDLRVf9wk3UMlwtW1DkIflE5R2x24q/Mjyx9IditU6Zu2Idx bSsc8wc44jHBVrurWEq5SXxBLwRM20C1joBc+Y3IVDrKROwai8Mu5hFAPEPFEOXnxk 4IIqocB7R3UaEiepXBG9Z96Z9bvIgq5AqfFQEd3s= From: Krzysztof Kozlowski To: Sakari Ailus , Mauro Carvalho Chehab , Rob Herring , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Krzysztof Kozlowski Subject: [PATCH 2/3] media: imx258: Add support for binding via device tree Date: Fri, 28 Aug 2020 18:00:52 +0200 Message-Id: <20200828160053.6064-2-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200828160053.6064-1-krzk@kernel.org> References: <20200828160053.6064-1-krzk@kernel.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -3.1 (---) X-LSpam-Report: No, score=-3.1 required=5.0 tests=BAYES_00=-1.9,DKIMWL_WL_HIGH=0.001,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,DKIM_VALID_EF=-0.1,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no The IMX258 can be used also on embedded designs using device tree so allow the sensor to bind to a device tree node. Signed-off-by: Krzysztof Kozlowski --- drivers/media/i2c/imx258.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index f86ae18bc104..c20bac9b00ec 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -1291,11 +1291,18 @@ static const struct acpi_device_id imx258_acpi_ids[] = { MODULE_DEVICE_TABLE(acpi, imx258_acpi_ids); #endif +static const struct of_device_id imx258_dt_ids[] = { + { .compatible = "sony,imx258" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx258_dt_ids); + static struct i2c_driver imx258_i2c_driver = { .driver = { .name = "imx258", .pm = &imx258_pm_ops, .acpi_match_table = ACPI_PTR(imx258_acpi_ids), + .of_match_table = imx258_dt_ids, }, .probe_new = imx258_probe, .remove = imx258_remove, From patchwork Fri Aug 28 16:00:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 66646 X-Patchwork-Delegate: sakari.ailus@iki.fi Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1kBgjG-005Kjw-Q0; Fri, 28 Aug 2020 15:55:51 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728461AbgH1QBV (ORCPT + 1 other); Fri, 28 Aug 2020 12:01:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:52422 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728431AbgH1QBJ (ORCPT ); Fri, 28 Aug 2020 12:01:09 -0400 Received: from kozik-lap.mshome.net (unknown [194.230.155.216]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 923A92100A; Fri, 28 Aug 2020 16:01:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598630468; bh=nXz5kfUXz09l/Kb7BqdnTAyQCPcigswsGuJeG0ZG9So=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jOp3KS9KX0rpCK8tb3SMghR4Rs6RDRX3v8euzd2xD4QzIQGpCUnK6ZhoatkVIwqpu 0rzvmlb1YcczOli27u0lvM/HBttC12L2KjCw844fR9EBo03JLfOhp8iO0JTVUHv9zD khNurayb0JRut1595ZX769jTA067f7vouGeQkUVs= From: Krzysztof Kozlowski To: Sakari Ailus , Mauro Carvalho Chehab , Rob Herring , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Krzysztof Kozlowski Subject: [PATCH 3/3] media: imx258: Get clock from device properties and enable it Date: Fri, 28 Aug 2020 18:00:53 +0200 Message-Id: <20200828160053.6064-3-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200828160053.6064-1-krzk@kernel.org> References: <20200828160053.6064-1-krzk@kernel.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -3.1 (---) X-LSpam-Report: No, score=-3.1 required=5.0 tests=BAYES_00=-1.9,DKIMWL_WL_HIGH=0.001,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,DKIM_VALID_EF=-0.1,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no The IMX258 sensor driver checked in device properties for a clock-frequency property which actually does not mean that the clock is really running such frequency or is it even enabled. Get the provided clock and check it frequency. If none is provided, fall back to old property. Enable the clock when accessing the IMX258 registers and when streaming starts. Signed-off-by: Krzysztof Kozlowski --- drivers/media/i2c/imx258.c | 107 ++++++++++++++++++++++++++++++------- 1 file changed, 87 insertions(+), 20 deletions(-) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index c20bac9b00ec..4d763dcabb1d 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -2,6 +2,7 @@ // Copyright (C) 2018 Intel Corporation #include +#include #include #include #include @@ -68,6 +69,9 @@ #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; @@ -610,6 +614,8 @@ struct imx258 { /* Streaming on/off */ bool streaming; + + struct clk *clk; }; static inline struct imx258 *to_imx258(struct v4l2_subdev *_sd) @@ -747,6 +753,12 @@ static int imx258_set_ctrl(struct v4l2_ctrl *ctrl) if (pm_runtime_get_if_in_use(&client->dev) == 0) return 0; + ret = clk_prepare_enable(imx258->clk); + if (ret) { + dev_err(&client->dev, "failed to enable clock\n"); + goto out; + } + switch (ctrl->id) { case V4L2_CID_ANALOGUE_GAIN: ret = imx258_write_reg(imx258, IMX258_REG_ANALOG_GAIN, @@ -779,6 +791,8 @@ static int imx258_set_ctrl(struct v4l2_ctrl *ctrl) break; } +out: + clk_disable_unprepare(imx258->clk); pm_runtime_put(&client->dev); return ret; @@ -972,10 +986,40 @@ static int imx258_stop_streaming(struct imx258 *imx258) return 0; } +static int imx258_power_on(struct imx258 *imx258) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + int ret; + + ret = pm_runtime_get_sync(&client->dev); + if (ret < 0) + goto err; + + ret = clk_prepare_enable(imx258->clk); + if (ret) { + dev_err(&client->dev, "failed to enable clock\n"); + goto err; + } + + return 0; + +err: + pm_runtime_put_noidle(&client->dev); + + return ret; +} + +static void imx258_power_off(struct imx258 *imx258) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + + clk_disable_unprepare(imx258->clk); + pm_runtime_put(&client->dev); +} + static int imx258_set_stream(struct v4l2_subdev *sd, int enable) { struct imx258 *imx258 = to_imx258(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); int ret = 0; mutex_lock(&imx258->mutex); @@ -985,11 +1029,9 @@ static int imx258_set_stream(struct v4l2_subdev *sd, int enable) } if (enable) { - ret = pm_runtime_get_sync(&client->dev); - if (ret < 0) { - pm_runtime_put_noidle(&client->dev); + ret = imx258_power_on(imx258); + if (ret < 0) goto err_unlock; - } /* * Apply default & customized values @@ -997,10 +1039,10 @@ static int imx258_set_stream(struct v4l2_subdev *sd, int enable) */ ret = imx258_start_streaming(imx258); if (ret) - goto err_rpm_put; + goto err_power_off; } else { imx258_stop_streaming(imx258); - pm_runtime_put(&client->dev); + imx258_power_off(imx258); } imx258->streaming = enable; @@ -1008,8 +1050,8 @@ static int imx258_set_stream(struct v4l2_subdev *sd, int enable) return ret; -err_rpm_put: - pm_runtime_put(&client->dev); +err_power_off: + imx258_power_off(imx258); err_unlock: mutex_unlock(&imx258->mutex); @@ -1201,21 +1243,41 @@ static int imx258_probe(struct i2c_client *client) int ret; u32 val = 0; - device_property_read_u32(&client->dev, "clock-frequency", &val); - if (val != 19200000) - return -EINVAL; + imx258 = devm_kzalloc(&client->dev, sizeof(*imx258), GFP_KERNEL); + if (!imx258) + return -ENOMEM; + + imx258->clk = devm_clk_get_optional(&client->dev, NULL); + if (!imx258->clk) { + dev_info(&client->dev, "no clock provided, using clock-frequency property\n"); + + device_property_read_u32(&client->dev, "clock-frequency", &val); + if (val != IMX258_INPUT_CLOCK_FREQ) + return -EINVAL; + } else if (IS_ERR(imx258->clk)) { + return dev_err_probe(&client->dev, PTR_ERR(imx258->clk), "error getting clock\n"); + } else { + if (clk_get_rate(imx258->clk) != IMX258_INPUT_CLOCK_FREQ) { + dev_err(&client->dev, "input clock frequency not supported\n"); + return -EINVAL; + } + + ret = clk_prepare_enable(imx258->clk); + if (ret) { + dev_err(&client->dev, "failed to enable clock\n"); + return ret; + } + } /* * Check that the device is mounted upside down. The driver only * supports a single pixel order right now. */ ret = device_property_read_u32(&client->dev, "rotation", &val); - if (ret || val != 180) - return -EINVAL; - - imx258 = devm_kzalloc(&client->dev, sizeof(*imx258), GFP_KERNEL); - if (!imx258) - return -ENOMEM; + if (ret || val != 180) { + ret = -EINVAL; + goto error_prop_read; + } /* Initialize subdev */ v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops); @@ -1223,14 +1285,14 @@ static int imx258_probe(struct i2c_client *client) /* Check module identity */ ret = imx258_identify_module(imx258); if (ret) - return ret; + goto error_prop_read; /* Set default mode to max resolution */ imx258->cur_mode = &supported_modes[0]; ret = imx258_init_controls(imx258); if (ret) - return ret; + goto error_prop_read; /* Initialize subdev */ imx258->sd.internal_ops = &imx258_internal_ops; @@ -1252,8 +1314,13 @@ static int imx258_probe(struct i2c_client *client) pm_runtime_enable(&client->dev); pm_runtime_idle(&client->dev); + clk_disable_unprepare(imx258->clk); + return 0; +error_prop_read: + clk_disable_unprepare(imx258->clk); + error_media_entity: media_entity_cleanup(&imx258->sd.entity);