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: 767303 Received: from xavier.telenet-ops.be (xavier.telenet-ops.be [195.130.132.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 426657319E for ; Thu, 25 Jan 2024 15:35:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.130.132.52 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706196904; cv=none; b=Mz545M8Evzi3C9vzWpeBSeqxRMbT9YQexIdEJDetboVYdMUPiAcUAv9/HUS8Jp14qx3x7c8lFH5GpP0ITZ1c4aN4O0fpoCpi+Ni4ptpCOlzXC2wAL2fgOEZMwarfHs7IuVdSIB3tLkhupjX0c979U1G/dhdfYjkhc6gzXqKR6Ts= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706196904; c=relaxed/simple; bh=93GkKmd4fyfQi5SOpTnAYdsS7YxqGZvt4lLw8GcEVM0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=mI6+e2jrtapYaUJx93EO5bWVScisZjil9Wr7zJ9JndD+KmAv00x6uZR1BVokMUrYz6Uk3Phq2bwJil0Y4cAHQ99MM+btMt7n3ymXUYrEBEXsBqYFC6B5jHOq0pPPU6v9eMDFxPq5E2oVJrZkz1FhP1NSrS77A95CM5hDXBWLQ0A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=glider.be; spf=none smtp.mailfrom=linux-m68k.org; arc=none smtp.client-ip=195.130.132.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=glider.be Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux-m68k.org 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: Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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);