From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 904C7C5B576 for ; Sun, 30 Jun 2019 20:36:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 67F92208C4 for ; Sun, 30 Jun 2019 20:36:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="DBTuLa2S" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727022AbfF3Ug4 (ORCPT ); Sun, 30 Jun 2019 16:36:56 -0400 Received: from mail-qk1-f193.google.com ([209.85.222.193]:35977 "EHLO mail-qk1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726669AbfF3Ug4 (ORCPT ); Sun, 30 Jun 2019 16:36:56 -0400 Received: by mail-qk1-f193.google.com with SMTP id g18so9488926qkl.3; Sun, 30 Jun 2019 13:36:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=49NmudHDFaiz637maLt0od1jxi4vc0fBNFWPB/OQ7Ew=; b=DBTuLa2SFCIRlncjgp0a8sjJMrmiVoevGiyq+PyOd3P/l5i0yHONM0OpSlSPJQxe0j 7W2lLA6Jtko/v+HWPa5jPZz/hgrSWzo9Npum9/dB6oPMFA7EasBtv8GFtuNx5mx3Q5K9 yNS0NwKxar7I5iQ/3fYTwzi1un0rCFFcDdWgmz1y61hZD4K1wajMwyRnQoPTepJ4vg5r t0Xk5yYpLn/9+BgC+O/N6chIuEGHCEfKTJMDGl7F7gMMUeVDaUkAS985kTO3JwIwbl1c hCkd5sPpwrIYtzhobXpu28W9vMkxVoChJUA/Rf6RNJHr4+SqFPjJmDgdUa25jHGDkxPx TkEQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=49NmudHDFaiz637maLt0od1jxi4vc0fBNFWPB/OQ7Ew=; b=CGlZSAjKr6A47l5S3oSm/DJld1DEZybZSIE0/Y9UjkMwW02M/V/s0CsZmw0LOICxey MVd2wKd5PIvJgc3qi/YJRvJvTG1mp+0dPvOhjaVvf+ZG8HxStCuNEOt1oB4z5+pk9Aum ql4DWE80cPGBsw+DO/6d11/DjmLb1iDWj0tXG/H+v10KKudZrG7vqnB9BCOOsLkas6rj y0KU1/9daJ5iEjUkK7c6arT6hg9+uymAUejYk+zGaXGBUXrAROOEzk69h6/6LSD34M65 c+D+8G0c2Ag5lmKWmFVURRro5n7CNgdBSoC2+cg6/th9NIMeOlh3hjJ7+oCTDaT7MkKc EjtQ== X-Gm-Message-State: APjAAAXm8ETawkNSFCbX8M1e9ixQzBn1aF9xJ43Mbyei7jvrh/MCgBE+ RHNeW0c54s26m2ZdBFFb5nBvOxfWmaPUWw== X-Google-Smtp-Source: APXvYqw9dPdRPjUOBiaJgOP42sCQA941WsYe4Bx2/e7qKIMcRkO0Fhw3GXsoNcznih/UEJD2KmtWsA== X-Received: by 2002:a37:9a97:: with SMTP id c145mr18112662qke.309.1561927015455; Sun, 30 Jun 2019 13:36:55 -0700 (PDT) Received: from localhost ([2601:184:4780:7861:5010:5849:d76d:b714]) by smtp.gmail.com with ESMTPSA id v30sm4457747qtk.45.2019.06.30.13.36.54 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sun, 30 Jun 2019 13:36:54 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org, aarch64-laptops@lists.linaro.org, Rob Clark , Maarten Lankhorst , Maxime Ripard , Sean Paul , David Airlie , Daniel Vetter , linux-kernel@vger.kernel.org Subject: [PATCH 3/4] drm: add helper to lookup panel-id Date: Sun, 30 Jun 2019 13:36:07 -0700 Message-Id: <20190630203614.5290-4-robdclark@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190630203614.5290-1-robdclark@gmail.com> References: <20190630203614.5290-1-robdclark@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Rob Clark Finds the panel-id from chosen, so drivers can use this to pick the correct endpoint when looking up panel. Signed-off-by: Rob Clark --- drivers/gpu/drm/drm_of.c | 21 +++++++++++++++++++++ include/drm/drm_of.h | 7 +++++++ 2 files changed, 28 insertions(+) diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index 43d89dd59c6b..3ba65750048b 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -279,3 +279,24 @@ int drm_of_find_panel_or_bridge(const struct device_node *np, return ret; } EXPORT_SYMBOL_GPL(drm_of_find_panel_or_bridge); + +/** + * drm_of_find_panel_id - return id of panel from chosen + * + * Returns the panel id, or zero if none specified + */ +int drm_of_find_panel_id(void) +{ + struct device_node *np = NULL; + u32 panel_id; + + np = of_find_node_by_path("/chosen"); + if (!np) + return 0; + + if (of_property_read_u32(np, "panel-id", &panel_id)) + return 0; + + return panel_id; +} +EXPORT_SYMBOL_GPL(drm_of_find_panel_id); diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h index ead34ab5ca4e..6cd2d59cb1db 100644 --- a/include/drm/drm_of.h +++ b/include/drm/drm_of.h @@ -35,6 +35,8 @@ int drm_of_find_panel_or_bridge(const struct device_node *np, int port, int endpoint, struct drm_panel **panel, struct drm_bridge **bridge); +int drm_of_find_panel_id(void); + #else static inline uint32_t drm_of_crtc_port_mask(struct drm_device *dev, struct device_node *port) @@ -77,6 +79,11 @@ static inline int drm_of_find_panel_or_bridge(const struct device_node *np, { return -EINVAL; } + +static inline int drm_of_find_panel_id(void) +{ + return 0; +} #endif /* -- 2.20.1