From patchwork Wed Jun 15 17:20:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Prashant Malani X-Patchwork-Id: 582210 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 BDA4EC433EF for ; Wed, 15 Jun 2022 17:29:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243318AbiFOR3H (ORCPT ); Wed, 15 Jun 2022 13:29:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39790 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348484AbiFOR3D (ORCPT ); Wed, 15 Jun 2022 13:29:03 -0400 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0EF833586E for ; Wed, 15 Jun 2022 10:29:01 -0700 (PDT) Received: by mail-pj1-x1035.google.com with SMTP id cx11so11848614pjb.1 for ; Wed, 15 Jun 2022 10:29:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=yU1gCwo/vpUxCIc57VV4IsZishi0TSmAXrvBQIGpe2U=; b=R48f0TErt8niv/gv0d0lSVb6ITUrGLs9Pd30o8jOJZHXeD52Fzw4OHBJ7lzPtQ1FLu wTXzhTC2c8lGmQ/HkwHyMOyoDwMv8eMS97KPLg62tAJyPlPdqaPPN9e5lywZaCofvNb/ 2stqabdAEpTT7j5KWGiwE2SbZRUUlEodPRwkk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=yU1gCwo/vpUxCIc57VV4IsZishi0TSmAXrvBQIGpe2U=; b=Le46jBKNTTh0SCHxIijotyY5rhMQTuhWGkt1MmA9dglHJUxNKuEDtKStD1or76kmZu dunEAQAvnbklXvCip8eh3j3ryr7VAB+6uY8YHue2MO7+QqMbEmqSu3V0ji+tb4NwbyMh RLF2z4oOsglCqfDPxCnqiUO6xKnyCg07VpmYBElRWTrN+9yH2udWT+uQWr/xd9UUDJBy lY0eOFfh946EGPk/REhUaXtqA1jZhgcU93taSsw4G5X81Z6e94vdvlFtAmjyHrHiAgMn nCQ0YSLyNIHtlsKJqljUi+/fr/kZTN7lQEC1fi329ik6PDAhf82WvxnoAGDnAeqQGdbF XhFA== X-Gm-Message-State: AJIora9B290DgwOtyr4c49DSUQSmRjARoDiDLgoJd7odlYqo5HYIE6if 5FtOwY81GkxmhwqtxzTcbsa1sg== X-Google-Smtp-Source: AGRyM1vwzPqUpHG5Lx/pI9IZTeCHB9Koz2dOT5UMwKL1uJ93y7aUKTlLKD5db94RZYOrNopuHiJliQ== X-Received: by 2002:a17:903:1cd:b0:168:e97b:54be with SMTP id e13-20020a17090301cd00b00168e97b54bemr782149plh.163.1655314140495; Wed, 15 Jun 2022 10:29:00 -0700 (PDT) Received: from pmalani.c.googlers.com.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id d10-20020aa7814a000000b005103abd2fdbsm10147433pfn.206.2022.06.15.10.29.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jun 2022 10:29:00 -0700 (PDT) From: Prashant Malani To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Cc: bleung@chromium.org, swboyd@chromium.org, heikki.krogerus@linux.intel.com, Prashant Malani , =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_?= =?utf-8?q?A_=2E_Prado?= , Andrzej Hajda , Daniel Vetter , David Airlie , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), dri-devel@lists.freedesktop.org (open list:DRM DRIVERS), Greg Kroah-Hartman , Hsin-Yi Wang , Jernej Skrabec , Jonas Karlman , =?utf-8?b?Sm9zw6kgRXhww7NzaXRv?= , Krzysztof Kozlowski , Laurent Pinchart , Maxime Ripard , Neil Armstrong , Pin-Yen Lin , Robert Foss , Rob Herring , Sam Ravnborg , Thomas Zimmermann , Xin Ji Subject: [PATCH v4 5/7] drm/bridge: anx7625: Register number of Type C switches Date: Wed, 15 Jun 2022 17:20:21 +0000 Message-Id: <20220615172129.1314056-6-pmalani@chromium.org> X-Mailer: git-send-email 2.36.1.476.g0c4daa206d-goog In-Reply-To: <20220615172129.1314056-1-pmalani@chromium.org> References: <20220615172129.1314056-1-pmalani@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Parse the "switches" node, if available, and count and store the number of Type-C switches within it. Since we currently don't do anything with this info, no functional changes are expected from this change. This patch sets a foundation for the actual registering of Type-C switches with the Type-C connector class framework. Reviewed-by: Nícolas F. R. A. Prado Tested-by: Nícolas F. R. A. Prado Signed-off-by: Prashant Malani --- Changes since v3: - No changes. Changes since v2: - Move ret variable to Patch v3 6/7. - Make error print a dev_dbg, since it is noisy. - Added Reviewed-by and Tested-by tags. Changes since v1: - No changes. drivers/gpu/drm/bridge/analogix/anx7625.c | 18 ++++++++++++++++++ drivers/gpu/drm/bridge/analogix/anx7625.h | 1 + 2 files changed, 19 insertions(+) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 53a5da6c49dd..e3d4c2738b8c 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -2581,6 +2581,20 @@ static void anx7625_runtime_disable(void *data) pm_runtime_disable(data); } +static int anx7625_register_typec_switches(struct device *device, struct anx7625_data *ctx) +{ + struct device_node *of = of_get_child_by_name(device->of_node, "switches"); + + if (!of) + return -ENODEV; + + ctx->num_typec_switches = of_get_child_count(of); + if (ctx->num_typec_switches <= 0) + return -ENODEV; + + return 0; +} + static int anx7625_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -2686,6 +2700,10 @@ static int anx7625_i2c_probe(struct i2c_client *client, if (platform->pdata.intp_irq) queue_work(platform->workqueue, &platform->work); + ret = anx7625_register_typec_switches(dev, platform); + if (ret) + dev_dbg(dev, "Didn't register Type C switches, err: %d\n", ret); + platform->bridge.funcs = &anx7625_bridge_funcs; platform->bridge.of_node = client->dev.of_node; if (!anx7625_of_panel_on_aux_bus(&client->dev)) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.h b/drivers/gpu/drm/bridge/analogix/anx7625.h index e257a84db962..d5cbca708842 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.h +++ b/drivers/gpu/drm/bridge/analogix/anx7625.h @@ -473,6 +473,7 @@ struct anx7625_data { struct drm_connector *connector; struct mipi_dsi_device *dsi; struct drm_dp_aux aux; + int num_typec_switches; }; #endif /* __ANX7625_H__ */