From patchwork Mon Jan 8 15:33:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 13513632 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 00E79C3DA6E for ; Mon, 8 Jan 2024 15:34:53 +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:References:In-Reply-To: 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: List-Owner; bh=JhcbsL7SZeeu/923yMxUAK9yenj6N7FTc/sWINuHOfY=; b=go/1tk7j5PLl9Z 0iDhwdtjkThK1MMO8kPh97eiZR/8ZNSVmRQbLScoD0ha+VhmonhmpEHK0D9y6T+rQjeaiEelQ1wjh q9x4lC7Th3CzlyZbq5emMI4VaJ02ZGWPHo9wungNwFinwecAnOgQbtWXJ4BgzxOxdJnpEtxMJuKZR jTpqQUfLMllVX8auJIFv7uSfsVgjPmOh6w412eEaBXpDtval5H+Gr0ug8ZQTaWuNA+clyYiYccOKp LCrArVgvcjyTjkx8zhijiL6F5YZiRINsYxNTb0oVnxAlbHlLdUmOH6lvprf4DgN33TFRaiEpBpiV6 8yqvgQVKB+DtTr4tcSDg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rMre0-005UWh-1a; Mon, 08 Jan 2024 15:34:28 +0000 Received: from andre.telenet-ops.be ([2a02:1800:120:4::f00:15]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rMrdm-005UMv-1O for linux-arm-kernel@lists.infradead.org; Mon, 08 Jan 2024 15:34:19 +0000 Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed40:d323:2fd4:4f64:e281]) by andre.telenet-ops.be with bizsmtp id YFZw2B0050Qz0eJ01FZwK0; Mon, 08 Jan 2024 16:34:07 +0100 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtp (Exim 4.95) (envelope-from ) id 1rMrcp-00EtMA-5I; Mon, 08 Jan 2024 16:33:56 +0100 Received: from geert by rox.of.borg with local (Exim 4.95) (envelope-from ) id 1rMrdU-00D7oG-C3; Mon, 08 Jan 2024 16:33:56 +0100 From: Geert Uytterhoeven To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , Magnus Damm , Catalin Marinas , Will Deacon , Ulf Hansson Cc: Cong Dang , Duy Nguyen , Hai Pham , Linh Phung , linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH 07/15] clk: renesas: rcar-gen4: Add support for FRQCRC1 Date: Mon, 8 Jan 2024 16:33:46 +0100 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240108_073414_632355_286125F5 X-CRM114-Status: GOOD ( 13.32 ) 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 R-Car V4H and V4M have a second Frequency Control Register C. Add support for this by treating bit field offsets beyond 31 as referring to the second register. Signed-off-by: Geert Uytterhoeven Reviewed-by: Niklas Söderlund Reviewed-by: Wolfram Sang --- Tested by enabling CLOCK_ALLOW_WRITE_DEBUGFS and checking the impact of CPU core clk rate on CPU core speed on R-Car V4M. --- drivers/clk/renesas/rcar-gen4-cpg.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/clk/renesas/rcar-gen4-cpg.c b/drivers/clk/renesas/rcar-gen4-cpg.c index c68d8b987054131b..a2bbdad021ed8e95 100644 --- a/drivers/clk/renesas/rcar-gen4-cpg.c +++ b/drivers/clk/renesas/rcar-gen4-cpg.c @@ -179,7 +179,8 @@ static struct clk * __init cpg_pll_clk_register(const char *name, */ #define CPG_FRQCRB 0x00000804 #define CPG_FRQCRB_KICK BIT(31) -#define CPG_FRQCRC 0x00000808 +#define CPG_FRQCRC0 0x00000808 +#define CPG_FRQCRC1 0x000008e0 struct cpg_z_clk { struct clk_hw hw; @@ -304,7 +305,12 @@ static struct clk * __init cpg_z_clk_register(const char *name, init.parent_names = &parent_name; init.num_parents = 1; - zclk->reg = reg + CPG_FRQCRC; + if (offset < 32) { + zclk->reg = reg + CPG_FRQCRC0; + } else { + zclk->reg = reg + CPG_FRQCRC1; + offset -= 32; + } zclk->kick_reg = reg + CPG_FRQCRB; zclk->hw.init = &init; zclk->mask = GENMASK(offset + 4, offset);