From patchwork Fri Feb 3 04:07:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qu Wenruo X-Patchwork-Id: 13126980 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 AD276C61DA4 for ; Fri, 3 Feb 2023 04:08:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From: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=HhhmbxUpMXZnf3Tp8IMXDjE2y5R2I7L3PwsQ85IZU1I=; b=vDaFxchEHEjZye /rjWXfSuS5YIkr5C5eYI5YWD3uM8dmkm73d10uSEAL1aFENq4WCSt/LmweMx2jLKZH07kG2nawmLR mXKlneFQvkOeaWiDDAe43pCMJkFowJ99dacrRqMp/8cpLvflg2rxLSX/Ah2mx/IKW4bxO4fs6+2g5 usdKv/WeWW2eAu/mQMrcugvTAsfXopASvkI5SW94+akPzEhQWzzpOLbZUCLSTZWbBqr/phXwBRXjK YaKv2EV/2yB7UQwgvp6ch/2SDdNuiOC0F0wIs2uN5HpA3hwWdtUZnnWQ0NU6oX981TtJ4GYtXmtHa U5NUt3RmIS0pZG+x2w3Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pNnMN-000HMz-2I; Fri, 03 Feb 2023 04:07:35 +0000 Received: from smtp-out2.suse.de ([2001:67c:2178:6::1d]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pNnMI-000HKR-Ss; Fri, 03 Feb 2023 04:07:32 +0000 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 172C22096D; Fri, 3 Feb 2023 04:07:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1675397247; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=W6LAf+G09vuz70hUJuoAiRBEY/ntes/Sp44R/HbLWyw=; b=RfGzxTh7rF5uFvZsTCfjb8DOj+k9fRkybTKL22tunx10Ww9hgRVIBCjlwbMZGtaIsgvYqc 34fLOS4GZqbxYhHNIXOeYOUIEGCPpeX9YyWoZPyW9benN3QzGBI4Z5x+UPaBRm/nAC6vx7 5KP/JBRqd7AEz2drNWfZT71a+Lgci1A= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 0A5C81346D; Fri, 3 Feb 2023 04:07:25 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id sTqsMX2I3GOsHQAAMHmgww (envelope-from ); Fri, 03 Feb 2023 04:07:25 +0000 From: Qu Wenruo To: linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org Cc: sebastian.reichel@collabora.com Subject: [PATCH] phy: rockchip: remove 24M and 24M clock handling for naneng combphy Date: Fri, 3 Feb 2023 12:07:08 +0800 Message-Id: <550a7ba2ebdbd6ea2a717ee82ba7f0244638c692.1675397136.git.wqu@suse.com> X-Mailer: git-send-email 2.39.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230202_200731_116728_7C714EDE X-CRM114-Status: GOOD ( 12.72 ) 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 Although the combphy supports 24M and 25M clocks, they are not utilized at any upstream dts (RK3568) nor downstream vendor kernel (RK3568, RK3588S, RK3588). Another thing is, with those two clocks removed, it's easier to port the rk3588 combphy, as 3588 combphy needs to write into cfg->pipe_clk_24m for 24M clock case. Signed-off-by: Qu Wenruo --- REASON FOR RFC: I'm not familiar with the arm realm at all, thus I don't know if it's a common practice to support unutilized features. But if it's OK for upstream kernel drivers to support functionality that may never be utilized, please ignore this patch. --- .../phy/rockchip/phy-rockchip-naneng-combphy.c | 17 ----------------- 1 file changed, 17 deletions(-) diff --git a/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c b/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c index 7b213825fb5d..ae7083ae17a2 100644 --- a/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c +++ b/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c @@ -94,7 +94,6 @@ struct rockchip_combphy_grfcfg { struct combphy_reg pipe_rxterm_set; struct combphy_reg pipe_txelec_set; struct combphy_reg pipe_txcomp_set; - struct combphy_reg pipe_clk_25m; struct combphy_reg pipe_clk_100m; struct combphy_reg pipe_phymode_sel; struct combphy_reg pipe_rate_sel; @@ -454,21 +453,6 @@ static int rk3568_combphy_cfg(struct rockchip_combphy_priv *priv) rate = clk_get_rate(priv->refclk); switch (rate) { - case REF_CLOCK_24MHz: - if (priv->type == PHY_TYPE_USB3 || priv->type == PHY_TYPE_SATA) { - /* Set ssc_cnt[9:0]=0101111101 & 31.5KHz. */ - val = PHYREG15_SSC_CNT_VALUE << PHYREG15_SSC_CNT_SHIFT; - rockchip_combphy_updatel(priv, PHYREG15_SSC_CNT_MASK, - val, PHYREG15); - - writel(PHYREG16_SSC_CNT_VALUE, priv->mmio + PHYREG16); - } - break; - - case REF_CLOCK_25MHz: - rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_clk_25m, true); - break; - case REF_CLOCK_100MHz: rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_clk_100m, true); if (priv->type == PHY_TYPE_PCIE) { @@ -530,7 +514,6 @@ static const struct rockchip_combphy_grfcfg rk3568_combphy_grfcfgs = { .pipe_rxterm_set = { 0x0000, 12, 12, 0x00, 0x01 }, .pipe_txelec_set = { 0x0004, 1, 1, 0x00, 0x01 }, .pipe_txcomp_set = { 0x0004, 4, 4, 0x00, 0x01 }, - .pipe_clk_25m = { 0x0004, 14, 13, 0x00, 0x01 }, .pipe_clk_100m = { 0x0004, 14, 13, 0x00, 0x02 }, .pipe_phymode_sel = { 0x0008, 1, 1, 0x00, 0x01 }, .pipe_rate_sel = { 0x0008, 2, 2, 0x00, 0x01 },