From patchwork Mon May 6 13:34:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Walle X-Patchwork-Id: 13655463 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 CF44FC25B4F for ; Mon, 6 May 2024 13:36:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=4BQmtEZV/yonZCDjMvNhltvj6dDRsNeCnO0rfrstorw=; b=wQ3wXQLfRYLVFB6fn5VK11P012 QzTP1rRcjmz/T+VMbgiXZODhy/YaG4Wu1Pw7uNH2qOkIamskoioXemcihhqjxyZDTEDjqqvELXODH CMSlqYKAB31yw/Dk+qqUiZBWeEKI/hOJADObBpRWIESF3rUIm+hMI8HNWPYw4xhXRRAAxCpZiwte4 SjXYbot6xtwb2Zp2Yi/8rMRLQWctkj8OuFhJjYUhG8Mq7Z9PmbWrOkdz16IoEkPbUlRdQ6HlJ2i2R 2taXB1wktPyKa4VXXainjb4UMTBWng59h7uEysNaCXwDdte1GxxV7TcRQRuTWKfDfqGiAkqbLqNf6 mRBUEpmA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s3yWC-00000007TwI-0LqO; Mon, 06 May 2024 13:36:36 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s3yVk-00000007Tax-1Hr7; Mon, 06 May 2024 13:36:08 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Cc:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Sender:Reply-To:Content-ID:Content-Description; bh=4BQmtEZV/yonZCDjMvNhltvj6dDRsNeCnO0rfrstorw=; b=Qq/tMPqny9akZ6ebKqqOzb7Rt7 RKK5sT2Vj0wYuMhOTeXoKicEdIXzG0GlpIvu+UuHIEfMlABidgWJcY9XTSSaFvPD6ZDbGYbMlkb6u Dzhu2WpPK5F3x6rStp4IO41LtwCCUPcH+g1+AmzP928Mk6ClGWOop9QlgLe2H19dZRMW1zJZ0kVG8 yfTX84saggCnAzFYyl6ygT+6yxhUZghJL3e3K/NH9ecE0V2mdDi3BGRThkrX/oT641hhubH/EDQ/f 87U/KwGkAvXlgcktRFBhUWFOlD6NurCXzyADkRoAc0ZZp56P1Y0AbWjfZL6LxLh29ULBUGsukjapO EbRRJeAw==; Received: from dfw.source.kernel.org ([139.178.84.217]) by desiato.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s3yVY-00000001j7z-3qxt; Mon, 06 May 2024 13:36:03 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id B04B261180; Mon, 6 May 2024 13:35:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AC6E7C4DDE0; Mon, 6 May 2024 13:35:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715002552; bh=WxRrG6WTFlRQfn6WWcefR6HHCbkvvHD6Cc1lLV/qbGE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=fkIFGsQvkv1zts7XnHArWvq5f6naVeYQf+gyv4hIjws7yh55elTEiD8E/gZClAhKt 2Nm8vAV4FymXXd+glXnlSr9Wi4znWxmiXt0ju4tdA60Zf/sl9QcxuMD6XMzogZ0i+f XZekXyKMV8g+eGYA8o2AxeORRn1LY73iuelV5XTvS8qB9VhsOyNcdYRR1VI7F31Bqy 61wBlpLyw6poCnKygq72ifnnqGRa2Y9LtUlhMr6OB6IDF7522UfUhiu07Dc907F4GA LrfmNplDZxSkhYiQGJjHvN4Rf3vmZd1re2RAEgCYpFFCwgSkRTME6JNwvTXNNQaen+ +vPi2Xo0NRgZQ== From: Michael Walle Date: Mon, 06 May 2024 15:34:39 +0200 Subject: [PATCH 10/20] drm/bridge: tc358775: simplify lvds_link property MIME-Version: 1.0 Message-Id: <20240506-tc358775-fix-powerup-v1-10-545dcf00b8dd@kernel.org> References: <20240506-tc358775-fix-powerup-v1-0-545dcf00b8dd@kernel.org> In-Reply-To: <20240506-tc358775-fix-powerup-v1-0-545dcf00b8dd@kernel.org> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Chun-Kuang Hu , Philipp Zabel , Matthias Brugger , AngeloGioacchino Del Regno , Sam Ravnborg , Vinay Simha BN , Tony Lindgren Cc: Daniel Semkowicz , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Michael Walle X-Mailer: b4 0.12.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240506_143559_363653_5DDD3328 X-CRM114-Status: GOOD ( 12.61 ) X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org The LVDS link can either be a single link or a dual link. No need for a u8. Replace it with a bool "lvds_dual_link". Signed-off-by: Michael Walle --- drivers/gpu/drm/bridge/tc358775.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/bridge/tc358775.c b/drivers/gpu/drm/bridge/tc358775.c index a9d731e87970..be2175571b99 100644 --- a/drivers/gpu/drm/bridge/tc358775.c +++ b/drivers/gpu/drm/bridge/tc358775.c @@ -231,7 +231,7 @@ struct tc_data { struct regulator *vddio; struct gpio_desc *reset_gpio; struct gpio_desc *stby_gpio; - u8 lvds_link; /* single-link or dual-link */ + bool lvds_dual_link; u8 bpc; enum tc3587x5_type type; @@ -409,7 +409,7 @@ static void tc_bridge_enable(struct drm_bridge *bridge) regmap_write(tc->regmap, VFUEN, VFUEN_EN); val = LVCFG_LVEN_BIT; - if (tc->lvds_link == DUAL_LINK) { + if (tc->lvds_dual_link) { val |= TC358775_LVCFG_LVDLINK(1); val |= TC358775_LVCFG_PCLKDIV(DIVIDE_BY_6); } else { @@ -460,8 +460,8 @@ tc_mode_valid(struct drm_bridge *bridge, * Maximum pixel clock speed 135MHz for single-link * 270MHz for dual-link */ - if ((mode->clock > 135000 && tc->lvds_link == SINGLE_LINK) || - (mode->clock > 270000 && tc->lvds_link == DUAL_LINK)) + if ((mode->clock > 135000 && !tc->lvds_dual_link) || + (mode->clock > 270000 && tc->lvds_dual_link)) return MODE_CLOCK_HIGH; switch (info->bus_formats[0]) { @@ -516,7 +516,6 @@ static int tc358775_parse_dt(struct device_node *np, struct tc_data *tc) of_node_put(tc->host_node); - tc->lvds_link = SINGLE_LINK; endpoint = of_graph_get_endpoint_by_regs(tc->dev->of_node, TC358775_LVDS_OUT1, -1); if (endpoint) { @@ -525,13 +524,14 @@ static int tc358775_parse_dt(struct device_node *np, struct tc_data *tc) if (remote) { if (of_device_is_available(remote)) - tc->lvds_link = DUAL_LINK; + tc->lvds_dual_link = true; of_node_put(remote); } } dev_dbg(tc->dev, "no.of dsi lanes: %d\n", tc->num_dsi_lanes); - dev_dbg(tc->dev, "operating in %d-link mode\n", tc->lvds_link); + dev_dbg(tc->dev, "operating in %s-link mode\n", + tc->lvds_dual_link ? "dual" : "single"); return 0; }