From patchwork Wed May 11 11:35:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Geis X-Patchwork-Id: 12846080 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 8C5F1C433EF for ; Wed, 11 May 2022 11:36:47 +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=v7cL5tGOHu9WGBOQynuT81NEXQnnpQ7RnNw384K9DLo=; b=1NW1Zn/aUOE5j8 OrFkm0h8DtbEP8X3aSYNf73XDkNLojcy5m6n4+qIP6LzAN1N4EmMoK67+N5mqzrHxf/Mnq0NR/nOd WKWBwqFKqXfrq1uGhpFFddxtCakt2vLksaKoX1YYwTjynbWaZgmOsxdvtGir63ZyB8bj6mtOJK8Uz 5tSQIZzcYVo/RbKMkbZzRS3w3ZtfL1lfZMUUQ9MRs9b7NzY/VwiQIcTVQ1iBvbx4fqaR87UCqOKrv cUsLHrqtD66Z7lt9HVxVmuGpl+PWKRmMN5H1Zz+pDbSUiTFB5AJbuGHh7C2v9fY68QXJx61hZT9pq 3anI1tezzuoPcrhzrl7w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nokdA-006WpX-7z; Wed, 11 May 2022 11:35:48 +0000 Received: from mail-qk1-x730.google.com ([2607:f8b0:4864:20::730]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nokcn-006WZi-UI; Wed, 11 May 2022 11:35:27 +0000 Received: by mail-qk1-x730.google.com with SMTP id a22so2030265qkl.5; Wed, 11 May 2022 04:35:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=onb5iDrr9AZU/Apv2XZLPoTcQR9Y3vPO5TDtvXQcOxQ=; b=oVqrjx29MINK52QwG0IJPDvlqXIqV1zPBJuiMpjtBXE/hIPoGg2X0+50kTplBxthYH D8vgtq7PprMfds50WIs0tN7TVvobuqfjnLIvdWXISuIiqeyE14SDl6KP700a2MzxgN9U KmHV6SKRcvfFxc5H0gQFg8kXvtmVCbsfGZAqc8bMksmhSlQaFXrPcvPZBevEYfcwda2m jHnGyRIfPk7F7REPHZz6eG3+tIEv+Cpt7/NgiuVGUr8fWtzNw+WwdCOKvKoZ2RXTTMxv mLVsvIBTP+s6aq5z94/ajvYjXSudDUOeXLMEHNAvjE26Ie5qRTNfXMVAcxU3Li5u7xdI vKbQ== 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=onb5iDrr9AZU/Apv2XZLPoTcQR9Y3vPO5TDtvXQcOxQ=; b=4bcUEygGqmikkvfCd/45/SjuJEuzfP6NnvWro8EdWTQwuDa5Yq7ih2cLlcnG4g8m4O ypiSdE5uo3NdFU+b38jkVYPpbrHtyJO/BBrUrybChCCn7mGYy2hxmzok1VHLdMfKAbAW ie/w4aK6CZMq+n/G2LMoT/QVJJWrEZumHfXN/w1bFWLMrMNwjwFcUC6nD/OyQU5sOcJm 2NenAhNyFAZXTo3FPaUwaP5TSfp1Vv3fPB9+FHnV+uv8KVRMH/tLo/vMwhvwfYV35idY Zimaz243IWwRlfdwv5H0iB1E3AWrsqJqw/3Mu3pqlyObklHn1bslwofzHsmdBKqrijNI Wsrg== X-Gm-Message-State: AOAM530TlMsswqUI/S7euwhd1CuXtH+oLRkt5Pu7xaHJpHqG0dSUsPqG s6oheQE1VgvR7FE1VZtN8rGnNIz/NE67nw== X-Google-Smtp-Source: ABdhPJxvEn0z8OWVAW1knWQ+gSB6bMqF0l8ZwTwgkUjNFMazkzowO+pRO9zxox34S+7OYWmauNF4wg== X-Received: by 2002:a05:620a:2407:b0:6a0:5027:f4d5 with SMTP id d7-20020a05620a240700b006a05027f4d5mr16378491qkn.318.1652268922439; Wed, 11 May 2022 04:35:22 -0700 (PDT) Received: from master-x64.sparksnet ([2601:153:980:85b1::10]) by smtp.gmail.com with ESMTPSA id bw26-20020a05622a099a00b002f39b99f6basm953377qtb.84.2022.05.11.04.35.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 May 2022 04:35:22 -0700 (PDT) From: Peter Geis To: linux-rockchip@lists.infradead.org, Jagan Teki , Thierry Reding , Sam Ravnborg , David Airlie , Daniel Vetter Cc: Heiko Stuebner , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Peter Geis Subject: [PATCH v2 2/3] drm/panel: feiyang-fy07024di26a30d: make reset gpio optional Date: Wed, 11 May 2022 07:35:15 -0400 Message-Id: <20220511113517.4172962-3-pgwipeout@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220511113517.4172962-1-pgwipeout@gmail.com> References: <20220511113517.4172962-1-pgwipeout@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220511_043525_997450_A87206C0 X-CRM114-Status: GOOD ( 12.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Some implementations do not use the reset signal, instead tying it to dvdd. Make the reset gpio optional to permit this. Signed-off-by: Peter Geis --- drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c b/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c index a9cd7135cb51..ee61d60eceae 100644 --- a/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c +++ b/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c @@ -209,7 +209,7 @@ static int feiyang_dsi_probe(struct mipi_dsi_device *dsi) return dev_err_probe(&dsi->dev, PTR_ERR(ctx->avdd), "Couldn't get avdd regulator\n"); - ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW); + ctx->reset = devm_gpiod_get_optional(&dsi->dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(ctx->reset)) return dev_err_probe(&dsi->dev, PTR_ERR(ctx->reset), "Couldn't get our reset GPIO\n");