From patchwork Tue Jan 17 08:29:04 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 9520143 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 9F4D76020A for ; Tue, 17 Jan 2017 08:30:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8DCD52836B for ; Tue, 17 Jan 2017 08:30:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 821F0284F6; Tue, 17 Jan 2017 08:30:05 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 80784284E7 for ; Tue, 17 Jan 2017 08:29:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751192AbdAQI3N (ORCPT ); Tue, 17 Jan 2017 03:29:13 -0500 Received: from galahad.ideasonboard.com ([185.26.127.97]:60531 "EHLO galahad.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751008AbdAQI3L (ORCPT ); Tue, 17 Jan 2017 03:29:11 -0500 Received: from avalon.bb.dnainternet.fi (dfj-tpyj40kccf8214dxy-3.rev.dnainternet.fi [IPv6:2001:14ba:21ff:600:f8f2:422:72d5:c0e6]) by galahad.ideasonboard.com (Postfix) with ESMTPSA id 1CB0220BCB; Tue, 17 Jan 2017 09:28:35 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1484641715; bh=lfz5Y4eMYr1cXLBJZYUlNGMryyxnFr9+5sgLESJJpPA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XppG3L30uFDXMM4PFXDtv/AILU5AOTPBW7cFUE8ZwajxZzN8/C/qhsgp2AXT/Cxge zQJ7mMeD/h1qAAaQxDac9YKGebi7IRt5vrADAW7xto9erPOzmE632RfL9FgHMFDQwe MjZQdQmNAmhbnneU0yb03gNl8vAq23GAO1E8BEYM= From: Laurent Pinchart To: dri-devel@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org, Andy Yan , Archit Taneja , Fabio Estevam , Jose Abreu , Kieran Bingham , Nickey Yang , Russell King , Vladimir Zapolskiy Subject: [PATCH v3 14/20] drm: bridge: dw-hdmi: Detect AHB audio DMA using correct register Date: Tue, 17 Jan 2017 10:29:04 +0200 Message-Id: <20170117082910.27023-15-laurent.pinchart+renesas@ideasonboard.com> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20170117082910.27023-1-laurent.pinchart+renesas@ideasonboard.com> References: <20170117082910.27023-1-laurent.pinchart+renesas@ideasonboard.com> Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Bit 0 in CONFIG1_ID tells whether the IP core uses an AHB slave interface for control. The correct way to identify AHB audio DMA support is through bit 1 in CONFIG3_ID. Signed-off-by: Laurent Pinchart Reviewed-by: Jose Abreu --- drivers/gpu/drm/bridge/dw-hdmi.c | 6 +++--- drivers/gpu/drm/bridge/dw-hdmi.h | 4 ++++ 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c index 1809247745b8..730a7558d4d4 100644 --- a/drivers/gpu/drm/bridge/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/dw-hdmi.c @@ -1836,7 +1836,7 @@ __dw_hdmi_probe(struct platform_device *pdev, u8 prod_id0; u8 prod_id1; u8 config0; - u8 config1; + u8 config3; hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL); if (!hdmi) @@ -1988,9 +1988,9 @@ __dw_hdmi_probe(struct platform_device *pdev, pdevinfo.id = PLATFORM_DEVID_AUTO; config0 = hdmi_readb(hdmi, HDMI_CONFIG0_ID); - config1 = hdmi_readb(hdmi, HDMI_CONFIG1_ID); + config3 = hdmi_readb(hdmi, HDMI_CONFIG3_ID); - if (config1 & HDMI_CONFIG1_AHB) { + if (config3 & HDMI_CONFIG3_AHBAUDDMA) { struct dw_hdmi_audio_data audio; audio.phys = iores->start; diff --git a/drivers/gpu/drm/bridge/dw-hdmi.h b/drivers/gpu/drm/bridge/dw-hdmi.h index 91d7fabbd6e5..a4fd64a203c9 100644 --- a/drivers/gpu/drm/bridge/dw-hdmi.h +++ b/drivers/gpu/drm/bridge/dw-hdmi.h @@ -559,6 +559,10 @@ enum { /* CONFIG1_ID field values */ HDMI_CONFIG1_AHB = 0x01, +/* CONFIG3_ID field values */ + HDMI_CONFIG3_AHBAUDDMA = 0x02, + HDMI_CONFIG3_GPAUD = 0x01, + /* IH_FC_INT2 field values */ HDMI_IH_FC_INT2_OVERFLOW_MASK = 0x03, HDMI_IH_FC_INT2_LOW_PRIORITY_OVERFLOW = 0x02,