From patchwork Thu Dec 12 20:03:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Ciocaltea X-Patchwork-Id: 13905929 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 CA6DDE7717F for ; Thu, 12 Dec 2024 20:07:23 +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=e5oTtaO0AbaCWpmx8lBb1nMQ2H9C061MoYafHHDeZMk=; b=r786LL6ysjcxt5KD/RX07NdqzQ hmImGbnUX3bFoYALrbMHw2pMCeLMSrMaP3LODYez2Eqi5SjrT4cx3LnsSL+AqFfDuir3633SuZhEJ l1N9VbfJGfMARiG8idfJQErvBy/Gwyk1HCs3gX7JS0lvHppIHSPGn0KnG1JEAZEyZq3k7jYjo1zhl kZliXj3icF0vU0zwJEhwftLlDLYlnoKbBReNQJZ5y9u2FiuOqTpZSvqdU5EEfWwYHhZg7+nHGMZUU CHphftmTY0uiO045iEpCGLi1LaJoE0FCHQ9Y6dwsmmmMJZwdp6S7Gm+2IumHQ3TPD5g45581LEOBy DS6WJLaQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tLpSs-00000001kSC-3xxt; Thu, 12 Dec 2024 20:07:14 +0000 Received: from bali.collaboradmins.com ([148.251.105.195]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tLpPi-00000001ji0-1mng; Thu, 12 Dec 2024 20:03:59 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1734033837; bh=rzY/ekTj36CpGepR2T+DTbTdewEz706/EN294cYriO4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=XJV/kuoKfxKSxUEmXOw1KT5z/JxGOig6CtpENBQ27dFsm+yIIIqut5ChBzAHGr+Ie cq/svw7DEt1nvoy0Si7hou9PwTDinqjKqk129ufYEIqFDQzb3OAHINK1QaKicSo44/ Yk3O+vV+wyqo1CMfZ/OUyZJezgxTJFn1GFPHqQ6CcmpqlrC5KEFEYeeuZk5hMTr/D7 yELCx5SAYs/qCpsthZuSa51si8va/oFv8aAgiqNN89L52elMYHuSxezVwKUpV5qFOF WIuClvV8Usw9AqN3RExdD8yel2d+sfcWBzLOsyU3kYt0T9Z8xCrxp1YyiaHk96naBm FbyFgssQpKPYQ== Received: from localhost (unknown [188.27.48.199]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: cristicc) by bali.collaboradmins.com (Postfix) with ESMTPSA id D90C917E37FF; Thu, 12 Dec 2024 21:03:56 +0100 (CET) From: Cristian Ciocaltea Date: Thu, 12 Dec 2024 22:03:34 +0200 Subject: [PATCH v2 3/8] phy: rockchip: samsung-hdptx: Fix clock ratio setup MIME-Version: 1.0 Message-Id: <20241212-phy-sam-hdptx-bpc-v2-3-57e672c7c7c4@collabora.com> References: <20241212-phy-sam-hdptx-bpc-v2-0-57e672c7c7c4@collabora.com> In-Reply-To: <20241212-phy-sam-hdptx-bpc-v2-0-57e672c7c7c4@collabora.com> To: Vinod Koul , Kishon Vijay Abraham I , Heiko Stuebner Cc: Algea Cao , Sandor Yu , Dmitry Baryshkov , Maxime Ripard , kernel@collabora.com, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org X-Mailer: b4 0.14.2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241212_120358_612319_57008576 X-CRM114-Status: UNSURE ( 9.70 ) X-CRM114-Notice: Please train this message. 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 The switch from 1/10 to 1/40 clock ratio must happen when exceeding the 340 MHz rate limit of HDMI 1.4, i.e. when entering the HDMI 2.0 domain, and not before. While at it, introduce a define for this rate limit constant. Fixes: 553be2830c5f ("phy: rockchip: Add Samsung HDMI/eDP Combo PHY driver") Signed-off-by: Cristian Ciocaltea --- drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c index ceab9c71d3b53ae0b746a10c081fcfaa7d5c5ae7..089020df5b4b8f9b44d272fa87a66e0f2c8ccaba 100644 --- a/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c +++ b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c @@ -192,6 +192,7 @@ #define LN3_TX_SER_RATE_SEL_HBR2 BIT(3) #define LN3_TX_SER_RATE_SEL_HBR3 BIT(2) +#define HDMI14_MAX_RATE 340000000 #define HDMI20_MAX_RATE 600000000 struct lcpll_config { @@ -826,7 +827,7 @@ static int rk_hdptx_ropll_tmds_mode_config(struct rk_hdptx_phy *hdptx, regmap_write(hdptx->regmap, LNTOP_REG(0200), 0x06); - if (rate >= 3400000) { + if (rate > HDMI14_MAX_RATE / 100) { /* For 1/40 bitrate clk */ rk_hdptx_multi_reg_write(hdptx, rk_hdtpx_tmds_lntop_highbr_seq); } else {