From patchwork Tue Aug 1 12:15:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 708835 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 23AB3C001DF for ; Tue, 1 Aug 2023 12:16:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233384AbjHAMP6 (ORCPT ); Tue, 1 Aug 2023 08:15:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60986 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233750AbjHAMP5 (ORCPT ); Tue, 1 Aug 2023 08:15:57 -0400 Received: from mail-wr1-x42c.google.com (mail-wr1-x42c.google.com [IPv6:2a00:1450:4864:20::42c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 37C4A1BD3 for ; Tue, 1 Aug 2023 05:15:55 -0700 (PDT) Received: by mail-wr1-x42c.google.com with SMTP id ffacd0b85a97d-317715ec496so5789315f8f.3 for ; Tue, 01 Aug 2023 05:15:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1690892153; x=1691496953; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=Z5GSTRd7yWsW/2h2X+KrYHhvI8Ce18nIFifnprRO8h4=; b=uW3+z/FJ1yyrAcM1aXR3gh0niyVipdJ2upxPe3G1JH8SYp83XRj1Xmb/9K3iCNPnnX cKljFCCrz4LjonlGm4KwERur/A/ATgunBcFj0f134cmREG9S9z+AK7S13F1TYMvm2MaY jQ2rBx2m9EORDo7vnFVslXAB10ABjOaaB7kMMIg9nUDocGqKHfOPrdWh2BqZncVBjEzy qOrxD9kwyRK4zdTB4S256hxZ4eAoqjFJTwbJFl+e7K4C6/z1Xy1LmmMe+S5VLoIqhm0Z vADGmAkZHykoEQ4fl2v2lYBc30nX5WgIWtzfSRZDT+xsZJn50lzedDDxvmiLqNOzjiob ZlBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690892153; x=1691496953; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Z5GSTRd7yWsW/2h2X+KrYHhvI8Ce18nIFifnprRO8h4=; b=AdZuD42EzKFtgQcH2ibshU8AUQ4gwSoKWUqmWu6931IPI1FOXYCSJyLz3Jl8OeS4UE +IwA6YKTtEF+FbRd4aPgCMQXUazgQNuU+od2p3yvxPOizsoTDziNuBGgsmj0khsNSzEn J7XyMth9rZEw3dVbu0NdJ7nq9SThvh7QzFN9Hb6kxIyrIKfJgZYypOt/tHtkfKRso3xk Mr6RvzL5F3Vv2r6duISJaMnkUryJSor86R0yZBX06WACTd44AiRrlVhmoDj2tuzFaZ+q RStSFHzGb5Re3MGi8CmM2fsCsbqUGpWd7aF/ZtUSp4mSufSrD4+HQxWm+DECBMgiOIVS lNyw== X-Gm-Message-State: ABy/qLbRQEouR/zQg125/8/T52i4hR7vOFUBvADvqzp2s1FKWWt8V72y w1z+d44txH6B7lPQCPMil/zNuA== X-Google-Smtp-Source: APBJJlFahpxMFv0vloTflNwx+qChRjTLQTZaYj2SP3VPYhgtFfO0O6F0OOcI5GDps1zw/GKDBYskSg== X-Received: by 2002:a5d:4ac2:0:b0:317:74ce:3e27 with SMTP id y2-20020a5d4ac2000000b0031774ce3e27mr2028948wrs.67.1690892153758; Tue, 01 Aug 2023 05:15:53 -0700 (PDT) Received: from arrakeen.starnux.net ([2a01:e0a:982:cbb0:52eb:f6ff:feb3:451a]) by smtp.gmail.com with ESMTPSA id z7-20020a5d4407000000b0031766e99429sm15874351wrq.115.2023.08.01.05.15.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Aug 2023 05:15:53 -0700 (PDT) From: Neil Armstrong Date: Tue, 01 Aug 2023 14:15:47 +0200 Subject: [PATCH v5 3/4] input: touchscreen: add I2C support for Goodix Berlin Touchscreen IC MIME-Version: 1.0 Message-Id: <20230801-topic-goodix-berlin-upstream-initial-v5-3-079252935593@linaro.org> References: <20230801-topic-goodix-berlin-upstream-initial-v5-0-079252935593@linaro.org> In-Reply-To: <20230801-topic-goodix-berlin-upstream-initial-v5-0-079252935593@linaro.org> To: Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bastien Nocera , Hans de Goede , Henrik Rydberg , Jeff LaBundy Cc: linux-input@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Neil Armstrong X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=4476; i=neil.armstrong@linaro.org; h=from:subject:message-id; bh=fvuZaiaDmAw7atVHwbHQLhUjO6UmtXJUopSvbqmyj84=; b=owEBbQKS/ZANAwAKAXfc29rIyEnRAcsmYgBkyPd0ws0YwW2QzrE9dyOLQqekN+ir5uKYokiF9rjq ZaZdrhKJAjMEAAEKAB0WIQQ9U8YmyFYF/h30LIt33NvayMhJ0QUCZMj3dAAKCRB33NvayMhJ0fpzD/ 97wAGdU2hqMDMeQ4u6tB3Sa8PP8TnhslBV91ZTVuU/jaoW6CWn+EmjglHuiMOdTqW0s8C6VCrp0vj5 5g/fZV9pvC5HeeJUiyIN4txeKvsGTkqgcrD+pbw7ZAr7rGkjxSfa/Q2ecCfn7RFqnvfPExG3xbNuNH /c9accgNzsGr5vvhthKhtgtaauA8KrOQNCIj9+iw22EUsLzwCdfEMLY/hIZPmht2eok2Kw4sUSSpdm pQ1wUq4u/rna/EqLwvivppbf8zUVbTMhaEDA20Uj43QlbPO4MsfZb3UYjV9R5+yApzIFt5a7whUFAG XLpvaQlD1MsCzVrFBDl/dxi5zRn12t2lgPl1CmWI++UnTGH7w1K96LwfLL6LUEXZMy5SMM1t9xFhXb YYjpWPpAaR5xptplQ5ZrM5e96WrtXBJ0oRYN2aoDz3jQ35Fp4Ct90TI+1QLIWSQGmzAjpqXAfVdPlq KgyS2e3nMWsiPxz8oyey8c7WFFiU8n/h+MRTR/Jv8GH0gCIO7RJbH8qQGElTzinomyhyeYa01thMda OS4k7d/zBE5Xko0RjG2lHYmqqJbEglEXCe7SyYHVtcA71yk9xwLqfQHonCIbelXiuZPqxOxyUTg77D j3cKQM4/DeEa2VpxL52KE3tkWoMZp1ahCh92OfF1YvGMA+DkYGjLPqHAvk3Q== X-Developer-Key: i=neil.armstrong@linaro.org; a=openpgp; fpr=89EC3D058446217450F22848169AB7B1A4CFF8AE Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add initial support for the new Goodix "Berlin" touchscreen ICs over the I2C interface. This initial driver is derived from the Goodix goodix_ts_berlin available at [1] and [2] and only supports the GT9916 IC present on the Qualcomm SM8550 MTP & QRD touch panel. The current implementation only supports BerlinD, aka GT9916. [1] https://github.com/goodix/goodix_ts_berlin [2] https://git.codelinaro.org/clo/la/platform/vendor/opensource/touch-drivers Reviewed-by: Jeff LaBundy Signed-off-by: Neil Armstrong --- drivers/input/touchscreen/Kconfig | 14 ++++++ drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/goodix_berlin_i2c.c | 69 +++++++++++++++++++++++++++ 3 files changed, 84 insertions(+) diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 950da599ae1a..cc7b88118158 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -419,6 +419,20 @@ config TOUCHSCREEN_GOODIX config TOUCHSCREEN_GOODIX_BERLIN_CORE tristate +config TOUCHSCREEN_GOODIX_BERLIN_I2C + tristate "Goodix Berlin I2C touchscreen" + depends on I2C + select REGMAP_I2C + select TOUCHSCREEN_GOODIX_BERLIN_CORE + help + Say Y here if you have a Goodix Berlin IC connected to + your system via I2C. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called goodix_berlin_i2c. + config TOUCHSCREEN_HIDEEP tristate "HiDeep Touch IC" depends on I2C diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 2e2f3e70cd2c..7ef677cf7a10 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -48,6 +48,7 @@ obj-$(CONFIG_TOUCHSCREEN_EXC3000) += exc3000.o obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o obj-$(CONFIG_TOUCHSCREEN_GOODIX) += goodix_ts.o obj-$(CONFIG_TOUCHSCREEN_GOODIX_BERLIN_CORE) += goodix_berlin_core.o +obj-$(CONFIG_TOUCHSCREEN_GOODIX_BERLIN_I2C) += goodix_berlin_i2c.o obj-$(CONFIG_TOUCHSCREEN_HIDEEP) += hideep.o obj-$(CONFIG_TOUCHSCREEN_HYNITRON_CSTXXX) += hynitron_cstxxx.o obj-$(CONFIG_TOUCHSCREEN_ILI210X) += ili210x.o diff --git a/drivers/input/touchscreen/goodix_berlin_i2c.c b/drivers/input/touchscreen/goodix_berlin_i2c.c new file mode 100644 index 000000000000..6407b2258eb1 --- /dev/null +++ b/drivers/input/touchscreen/goodix_berlin_i2c.c @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Goodix Berlin Touchscreen Driver + * + * Copyright (C) 2020 - 2021 Goodix, Inc. + * Copyright (C) 2023 Linaro Ltd. + * + * Based on goodix_ts_berlin driver. + */ +#include +#include +#include +#include + +#include "goodix_berlin.h" + +#define I2C_MAX_TRANSFER_SIZE 256 + +static const struct regmap_config goodix_berlin_i2c_regmap_conf = { + .reg_bits = 32, + .val_bits = 8, + .max_raw_read = I2C_MAX_TRANSFER_SIZE, + .max_raw_write = I2C_MAX_TRANSFER_SIZE, +}; + +/* vendor & product left unassigned here, should probably be updated from fw info */ +static const struct input_id goodix_berlin_i2c_input_id = { + .bustype = BUS_I2C, +}; + +static int goodix_berlin_i2c_probe(struct i2c_client *client) +{ + struct regmap *regmap; + + regmap = devm_regmap_init_i2c(client, &goodix_berlin_i2c_regmap_conf); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + return goodix_berlin_probe(&client->dev, client->irq, + &goodix_berlin_i2c_input_id, regmap); +} + +static const struct i2c_device_id goodix_berlin_i2c_id[] = { + { "gt9916", 0 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, goodix_berlin_i2c_id); + +static const struct of_device_id goodix_berlin_i2c_of_match[] = { + { .compatible = "goodix,gt9916", }, + { } +}; +MODULE_DEVICE_TABLE(of, goodix_berlin_i2c_of_match); + +static struct i2c_driver goodix_berlin_i2c_driver = { + .driver = { + .name = "goodix-berlin-i2c", + .of_match_table = goodix_berlin_i2c_of_match, + .pm = pm_sleep_ptr(&goodix_berlin_pm_ops), + }, + .probe = goodix_berlin_i2c_probe, + .id_table = goodix_berlin_i2c_id, +}; +module_i2c_driver(goodix_berlin_i2c_driver); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Goodix Berlin I2C Touchscreen driver"); +MODULE_AUTHOR("Neil Armstrong ");