From patchwork Sat Aug 31 14:20:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 13786090 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AAF45CD129C for ; Sat, 31 Aug 2024 14:21:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=pdFI5tcJwpcZCMWR8CCEhmMQP8dNV2sWlvcNpGwRvEA=; b=2o/Wi4l9rAA0hD KCOkwlO2+PaNYpxMcRQrXee3xBJYYlFYJZz4A9QWpSE0jsWuY1kvEKtIZBZa7bOZvVvA6SYH+748e CqZuQxKds6Xkd8uV8XKaD9J/xmb/CrIXpDXVqlKExnsp1NVFRVyEYJBj4ymMQmi5PEPDQ1ay57krR lSDmeV9/SoD3Oof6gi4ABBIBlRlaQlk2I1OXFIAUk6yIjPnXEvsCKZ7ltoxgbhai+EJt18IharOTx X2DAzJsIBKHn/UK8UiaPEuyvJTYk9B1u7tyyzckSN/hKdV6v6NNiNH3Hkt4izm8Lb5sHlFrd+0grb QUMnGC8e8viHZxY6xjYQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1skOyV-00000009TkW-1Bol; Sat, 31 Aug 2024 14:21:11 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1skOyS-00000009Tig-0cWV for linux-phy@lists.infradead.org; Sat, 31 Aug 2024 14:21:09 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1725114067; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Y5O3GspAeKQ3pneZEdcCy+Sw5OHilzaQkJasxbh7z3U=; b=fEZve2OeorTK7NMm3EejtESaekEC1D8/AW99yHc8DH+krZW/JaZuYl3+EfI+r0fo4F5iIi s/cfQy4nC1OR3H5MkxSHaCT2JGDd+dQ0rw7XsPCEelJFyjBQr34vgBGWGEjTvhXATvnKXX qXShm36Ii3IJvGAbamfx5zEzYIEmX0w= Received: from mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-596-UNIRLRDgMwesO4-JeuSJWA-1; Sat, 31 Aug 2024 10:21:03 -0400 X-MC-Unique: UNIRLRDgMwesO4-JeuSJWA-1 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 26D1A19560AD; Sat, 31 Aug 2024 14:21:01 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.192.42]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id AC60130001A4; Sat, 31 Aug 2024 14:20:55 +0000 (UTC) From: Hans de Goede To: Sebastian Reichel , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= , MyungJoo Ham , Chanwoo Choi , Greg Kroah-Hartman , Heikki Krogerus , Vinod Koul , Kishon Vijay Abraham I Cc: Hans de Goede , Enric Balletbo Serra , Andrey Smirnov , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-phy@lists.infradead.org Subject: [PATCH 2/6] power: supply: ucs1002: Adjust ucs1002_set_usb_type() to accept string values Date: Sat, 31 Aug 2024 16:20:35 +0200 Message-ID: <20240831142039.28830-3-hdegoede@redhat.com> In-Reply-To: <20240831142039.28830-1-hdegoede@redhat.com> References: <20240831142039.28830-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240831_072108_279387_2E10B087 X-CRM114-Status: GOOD ( 12.36 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org power_supply_sysfs.c accept wrrites of strings to "usb_type" for strings values matching an entry in POWER_SUPPLY_USB_TYPE_TEXT[]. If such a string value is written then the int value passed to ucs1002_set_property() will be an enum power_supply_usb_type value. Before this change ucs1002_set_usb_type() expected the value to be an index into ucs1002_usb_types[]. Adjust ucs1002_set_usb_type() to use the enum value directly so that writing string values works. The list of supported types in ucs1002_usb_types[] is: PD, SDP, DCP, CDP. The [POWER_SUPPLY_USB_TYPE_]SDP, DCP and CDP enum labels have a value of 1, 2 and 3. So userspace selecting SDP, DCP or CDP by writing 1, 2 or 3 will keep working. POWER_SUPPLY_USB_TYPE_PD which is mapped to the ucs1002 dedicated mode however has a value of 6. Before this change writing 0 would select the dedicated mode. To preserve userspace API compatibility also map POWER_SUPPLY_USB_TYPE_UNKNOWN (which is 0) to the dedicated mode. Cc: Enric Balletbo Serra Cc: Andrey Smirnov Signed-off-by: Hans de Goede --- drivers/power/supply/ucs1002_power.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/power/supply/ucs1002_power.c b/drivers/power/supply/ucs1002_power.c index 7970843a4f48..b67d5b03d93e 100644 --- a/drivers/power/supply/ucs1002_power.c +++ b/drivers/power/supply/ucs1002_power.c @@ -308,10 +308,13 @@ static int ucs1002_set_usb_type(struct ucs1002_info *info, int val) { unsigned int mode; - if (val < 0 || val >= ARRAY_SIZE(ucs1002_usb_types)) - return -EINVAL; - - switch (ucs1002_usb_types[val]) { + switch (val) { + /* + * POWER_SUPPLY_USB_TYPE_UNKNOWN == 0, map this to dedicated for + * userspace API compatibility with older versions of this driver + * which mapped 0 to dedicated. + */ + case POWER_SUPPLY_USB_TYPE_UNKNOWN: case POWER_SUPPLY_USB_TYPE_PD: mode = V_SET_ACTIVE_MODE_DEDICATED; break;