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=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 8BCC5C43331 for ; Tue, 12 Nov 2019 17:59:53 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 64B6421925 for ; Tue, 12 Nov 2019 17:59:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="bfm1owal" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 64B6421925 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Subject:To:From :Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=LZIClBCfEjL3kE5KyIfVYVikcj/j3IwquNlYLwvVjKI=; b=bfm1owalYOU7gn 1ujBYT0H4bPpFJO/zZTNCc/Gpyonx9MovK+QF3j59eF/lRpA0ZWa9SHpbauXcTwE5XsTg9UWFB7JQ UyqcuaoXhls3rYQKA5nVkeJK8JgH5L78/LkapsG/TWZCTrQjTPMG/XNNMH9oi4Pu95zaAM6PGQy6I kEedOEw4QGJEr6S697DhIV6Yjs+IWvV5gKsbA44bmhaOwCKkD2N/qj5dWnYES4qdQCK4imMFpbxp5 iENEuVcCPn/4XspU0l2fMsCl3U6C0Gf3cmhf0V0T3RSdD0LVquwD28ok6zVN06XGtM9FKG2rwgpog 2SkxAVsshdM/UgejKhrg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iUaSG-00029o-Rv; Tue, 12 Nov 2019 17:59:52 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iUaSD-00028J-1l for linux-arm-kernel@lists.infradead.org; Tue, 12 Nov 2019 17:59:50 +0000 Received: by verein.lst.de (Postfix, from userid 2005) id DB8AF68BE1; Tue, 12 Nov 2019 18:59:40 +0100 (CET) Date: Tue, 12 Nov 2019 18:59:40 +0100 From: Torsten Duwe To: Maxime Ripard Subject: [PATCH] drm/bridge: fix anx6345 compilation for v5.5 Message-ID: <20191112175940.GA13539@lst.de> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191112_095949_388154_69318997 X-CRM114-Status: GOOD ( 16.07 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, David Airlie , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Andrzej Hajda , Chen-Yu Tsai , Rob Herring , Thierry Reding , Laurent Pinchart , Daniel Vetter , Harald Geyer , Sean Paul , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Icenowy Zheng Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org The anx6345 driver originally was copied from anx78xx.c, which has meanwhile seen a few changes. In particular, the removal of drm_dp_link helpers and the discontinuation to include drm_bridge.h from drm_crtc.h breaks compilation in linux-5.5. Apply equivalents of these changes to anx6345.c. Signed-off-by: Torsten Duwe --- The commits in question are ff1e8fb68ea06 and ee68c743f8d07, but I guess the next rebase will change these. next-20191112 plus the anx6345-v5a series plus this patch compile cleanly on arm64. --- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c @@ -19,6 +19,7 @@ #include #include +#include #include #include #include @@ -49,7 +50,6 @@ struct anx6345 { struct i2c_client *client; struct edid *edid; struct drm_connector connector; - struct drm_dp_link link; struct drm_panel *panel; struct regulator *dvdd12; struct regulator *dvdd25; @@ -96,7 +96,7 @@ static ssize_t anx6345_aux_transfer(stru static int anx6345_dp_link_training(struct anx6345 *anx6345) { unsigned int value; - u8 dp_bw; + u8 dp_bw, dpcd[2]; int err; err = anx6345_clear_bits(anx6345->map[I2C_IDX_TXCOM], @@ -144,18 +143,34 @@ static int anx6345_dp_link_training(stru if (err) return err; - /* Check link capabilities */ - err = drm_dp_link_probe(&anx6345->aux, &anx6345->link); - if (err < 0) { - DRM_ERROR("Failed to probe link capabilities: %d\n", err); - return err; - } + /* + * Power up the sink (DP_SET_POWER register is only available on DPCD + * v1.1 and later). + */ + if (anx6345->dpcd[DP_DPCD_REV] >= 0x11) { + err = drm_dp_dpcd_readb(&anx6345->aux, DP_SET_POWER, &dpcd[0]); + if (err < 0) { + DRM_ERROR("Failed to read DP_SET_POWER register: %d\n", + err); + return err; + } + + dpcd[0] &= ~DP_SET_POWER_MASK; + dpcd[0] |= DP_SET_POWER_D0; + + err = drm_dp_dpcd_writeb(&anx6345->aux, DP_SET_POWER, dpcd[0]); + if (err < 0) { + DRM_ERROR("Failed to power up DisplayPort link: %d\n", + err); + return err; + } - /* Power up the sink */ - err = drm_dp_link_power_up(&anx6345->aux, &anx6345->link); - if (err < 0) { - DRM_ERROR("Failed to power up DisplayPort link: %d\n", err); - return err; + /* + * According to the DP 1.1 specification, a "Sink Device must + * exit the power saving state within 1 ms" (Section 2.5.3.1, + * Table 5-52, "Sink Control Field" (register 0x600). + */ + usleep_range(1000, 2000); } /* Possibly enable downspread on the sink */ @@ -194,20 +209,28 @@ static int anx6345_dp_link_training(stru if (err) return err; - value = drm_dp_link_rate_to_bw_code(anx6345->link.rate); + dpcd[0] = drm_dp_max_link_rate(anx6345->dpcd); + dpcd[0] = drm_dp_link_rate_to_bw_code(dpcd[0]); err = regmap_write(anx6345->map[I2C_IDX_DPTX], - SP_DP_MAIN_LINK_BW_SET_REG, value); + SP_DP_MAIN_LINK_BW_SET_REG, dpcd[0]); if (err) return err; + dpcd[1] = drm_dp_max_lane_count(anx6345->dpcd); + err = regmap_write(anx6345->map[I2C_IDX_DPTX], - SP_DP_LANE_COUNT_SET_REG, anx6345->link.num_lanes); + SP_DP_LANE_COUNT_SET_REG, dpcd[1]); if (err) return err; - err = drm_dp_link_configure(&anx6345->aux, &anx6345->link); + if (drm_dp_enhanced_frame_cap(anx6345->dpcd)) + dpcd[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN; + + err = drm_dp_dpcd_write(&anx6345->aux, DP_LINK_BW_SET, dpcd, + sizeof(dpcd)); + if (err < 0) { - DRM_ERROR("Failed to configure DisplayPort link: %d\n", err); + DRM_ERROR("Failed to configure link: %d\n", err); return err; } _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 0F88BC17448 for ; Tue, 12 Nov 2019 17:59:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E3E9321A49 for ; Tue, 12 Nov 2019 17:59:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727170AbfKLR7p (ORCPT ); Tue, 12 Nov 2019 12:59:45 -0500 Received: from verein.lst.de ([213.95.11.211]:57158 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726976AbfKLR7p (ORCPT ); Tue, 12 Nov 2019 12:59:45 -0500 Received: by verein.lst.de (Postfix, from userid 2005) id DB8AF68BE1; Tue, 12 Nov 2019 18:59:40 +0100 (CET) Date: Tue, 12 Nov 2019 18:59:40 +0100 From: Torsten Duwe To: Maxime Ripard Cc: Chen-Yu Tsai , Rob Herring , Mark Rutland , Thierry Reding , David Airlie , Daniel Vetter , Andrzej Hajda , Laurent Pinchart , Icenowy Zheng , Sean Paul , Vasily Khoruzhick , Harald Geyer , Greg Kroah-Hartman , Thomas Gleixner , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] drm/bridge: fix anx6345 compilation for v5.5 Message-ID: <20191112175940.GA13539@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.17 (2007-11-01) Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The anx6345 driver originally was copied from anx78xx.c, which has meanwhile seen a few changes. In particular, the removal of drm_dp_link helpers and the discontinuation to include drm_bridge.h from drm_crtc.h breaks compilation in linux-5.5. Apply equivalents of these changes to anx6345.c. Signed-off-by: Torsten Duwe --- The commits in question are ff1e8fb68ea06 and ee68c743f8d07, but I guess the next rebase will change these. next-20191112 plus the anx6345-v5a series plus this patch compile cleanly on arm64. --- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c @@ -19,6 +19,7 @@ #include #include +#include #include #include #include @@ -49,7 +50,6 @@ struct anx6345 { struct i2c_client *client; struct edid *edid; struct drm_connector connector; - struct drm_dp_link link; struct drm_panel *panel; struct regulator *dvdd12; struct regulator *dvdd25; @@ -96,7 +96,7 @@ static ssize_t anx6345_aux_transfer(stru static int anx6345_dp_link_training(struct anx6345 *anx6345) { unsigned int value; - u8 dp_bw; + u8 dp_bw, dpcd[2]; int err; err = anx6345_clear_bits(anx6345->map[I2C_IDX_TXCOM], @@ -144,18 +143,34 @@ static int anx6345_dp_link_training(stru if (err) return err; - /* Check link capabilities */ - err = drm_dp_link_probe(&anx6345->aux, &anx6345->link); - if (err < 0) { - DRM_ERROR("Failed to probe link capabilities: %d\n", err); - return err; - } + /* + * Power up the sink (DP_SET_POWER register is only available on DPCD + * v1.1 and later). + */ + if (anx6345->dpcd[DP_DPCD_REV] >= 0x11) { + err = drm_dp_dpcd_readb(&anx6345->aux, DP_SET_POWER, &dpcd[0]); + if (err < 0) { + DRM_ERROR("Failed to read DP_SET_POWER register: %d\n", + err); + return err; + } + + dpcd[0] &= ~DP_SET_POWER_MASK; + dpcd[0] |= DP_SET_POWER_D0; + + err = drm_dp_dpcd_writeb(&anx6345->aux, DP_SET_POWER, dpcd[0]); + if (err < 0) { + DRM_ERROR("Failed to power up DisplayPort link: %d\n", + err); + return err; + } - /* Power up the sink */ - err = drm_dp_link_power_up(&anx6345->aux, &anx6345->link); - if (err < 0) { - DRM_ERROR("Failed to power up DisplayPort link: %d\n", err); - return err; + /* + * According to the DP 1.1 specification, a "Sink Device must + * exit the power saving state within 1 ms" (Section 2.5.3.1, + * Table 5-52, "Sink Control Field" (register 0x600). + */ + usleep_range(1000, 2000); } /* Possibly enable downspread on the sink */ @@ -194,20 +209,28 @@ static int anx6345_dp_link_training(stru if (err) return err; - value = drm_dp_link_rate_to_bw_code(anx6345->link.rate); + dpcd[0] = drm_dp_max_link_rate(anx6345->dpcd); + dpcd[0] = drm_dp_link_rate_to_bw_code(dpcd[0]); err = regmap_write(anx6345->map[I2C_IDX_DPTX], - SP_DP_MAIN_LINK_BW_SET_REG, value); + SP_DP_MAIN_LINK_BW_SET_REG, dpcd[0]); if (err) return err; + dpcd[1] = drm_dp_max_lane_count(anx6345->dpcd); + err = regmap_write(anx6345->map[I2C_IDX_DPTX], - SP_DP_LANE_COUNT_SET_REG, anx6345->link.num_lanes); + SP_DP_LANE_COUNT_SET_REG, dpcd[1]); if (err) return err; - err = drm_dp_link_configure(&anx6345->aux, &anx6345->link); + if (drm_dp_enhanced_frame_cap(anx6345->dpcd)) + dpcd[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN; + + err = drm_dp_dpcd_write(&anx6345->aux, DP_LINK_BW_SET, dpcd, + sizeof(dpcd)); + if (err < 0) { - DRM_ERROR("Failed to configure DisplayPort link: %d\n", err); + DRM_ERROR("Failed to configure link: %d\n", err); return err; } 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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 09E2FC17441 for ; Tue, 12 Nov 2019 17:59:46 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E03FF21925 for ; Tue, 12 Nov 2019 17:59:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 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