From patchwork Thu Jan 25 15:34:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 13531142 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 E1ED1C47422 for ; Thu, 25 Jan 2024 15:35:44 +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=qCeRyahYMtYl3IBLXphtMen0QyzqE1zXAcdu9R8nuuQ=; b=Rr1oLtpk4uPwn3 gSlkeFHFt47rItZLlFbeVhf/7piMNrE4yJaQQ5+scRB2Au80/4KHZFhNzcrZMxZesAGQL5XwNMboO RScK9CsvQRJ1RGCmOO/EPpbAbaoF9Sc2hyP790VELn17yGa7OVYFDGs3rP4rmRx+r5c1NPDGdMqcQ G2Pf/WyoXcgz+GrbT2zufkR+NncN6hxFuCxndIv0RXXVujeFbkALz9ZnDoeadHCMBAbq7mQkwSBSm vb9CAP/Qs/wm/nKEyFcPAA5uEr2xhPVHEuYd+DmMBU9b0CGu3I5iO8S6UpG6vZ/hV+O1C9q38S69p ShUP5dIQ2NDbUvw3Eq/A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rT1lN-00000000dmM-1PtR; Thu, 25 Jan 2024 15:35:33 +0000 Received: from xavier.telenet-ops.be ([2a02:1800:120:4::f00:14]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rT1kq-00000000dbe-0Wvd for linux-arm-kernel@lists.infradead.org; Thu, 25 Jan 2024 15:35:05 +0000 Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed40:bc9e:fcb8:8aa3:5dc0]) by xavier.telenet-ops.be with bizsmtp id f3am2B00858agq2013amcN; Thu, 25 Jan 2024 16:34:58 +0100 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtp (Exim 4.95) (envelope-from ) id 1rT1jo-00GUvt-3q; Thu, 25 Jan 2024 16:34:46 +0100 Received: from geert by rox.of.borg with local (Exim 4.95) (envelope-from ) id 1rT1kc-00Fs2l-3A; Thu, 25 Jan 2024 16:34:46 +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 , =?utf-8?q?Niklas_S=C3=B6derlu?= =?utf-8?q?nd?= , Wolfram Sang Subject: [PATCH v2 07/15] clk: renesas: rcar-gen4: Add support for FRQCRC1 Date: Thu, 25 Jan 2024 16:34:35 +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-20240125_073500_368949_93644F66 X-CRM114-Status: GOOD ( 14.27 ) 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. v2: - Add Reviewed-by. --- 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 8f771fe59bfdc756..8e4559fbb0bc3352 100644 --- a/drivers/clk/renesas/rcar-gen4-cpg.c +++ b/drivers/clk/renesas/rcar-gen4-cpg.c @@ -220,7 +220,8 @@ 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; @@ -345,7 +346,12 @@ 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);