From: Stephen Boyd <sboyd@kernel.org>
To: Conor Dooley <conor+dt@kernel.org>,
Huacai Chen <chenhuacai@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Michael Turquette <mturquette@baylibre.com>,
Rob Herring <robh@kernel.org>, WANG Xuerui <kernel@xen0n.name>,
Yao Zi <ziyao@disroot.org>, Yinbo Zhu <zhuyinbo@loongson.cn>
Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, loongarch@lists.linux.dev,
Mingcong Bai <jeffbai@aosc.io>,
Kexy Biscuit <kexybiscuit@aosc.io>, Yao Zi <ziyao@disroot.org>
Subject: Re: [PATCH v4 3/8] clk: loongson2: Support scale clocks with an alternative mode
Date: Sun, 21 Sep 2025 12:50:43 -0700 [thread overview]
Message-ID: <175848424324.4354.14718670578549381149@lazor> (raw)
In-Reply-To: <20250919142649.58859-4-ziyao@disroot.org>
Quoting Yao Zi (2025-09-19 07:26:44)
> LS2K0300 and LS2K1500 ship scale clocks with an alternative mode.
> There's one mode bit in clock configuration register indicating the
> operation mode.
>
> When mode bit is unset, the scale clock acts the same as previous
> generation of scale clocks. When it's set, a different equation for
> calculating result frequency, Fout = Fin / (scale + 1), is used.
>
> This patch adds frequency calculation support for the scale clock
> variant. A helper macro, CLK_SCALE_MODE, is added to simplify
> definitions.
>
> Signed-off-by: Yao Zi <ziyao@disroot.org>
> ---
Applied to clk-next
next prev parent reply other threads:[~2025-09-21 19:50 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-19 14:26 [PATCH v4 0/8] Add clock support for Loongson 2K0300 SoC Yao Zi
2025-09-19 14:26 ` [PATCH v4 1/8] dt-bindings: clock: loongson2: Add Loongson-2K0300 compatible Yao Zi
2025-09-21 19:50 ` Stephen Boyd
2025-09-19 14:26 ` [PATCH v4 2/8] clk: loongson2: Allow specifying clock flags for gate clock Yao Zi
2025-09-21 19:50 ` Stephen Boyd
2025-09-19 14:26 ` [PATCH v4 3/8] clk: loongson2: Support scale clocks with an alternative mode Yao Zi
2025-09-21 19:50 ` Stephen Boyd [this message]
2025-09-19 14:26 ` [PATCH v4 4/8] clk: loongson2: Allow zero divisors for dividers Yao Zi
2025-09-21 19:50 ` Stephen Boyd
2025-09-19 14:26 ` [PATCH v4 5/8] clk: loongson2: Avoid hardcoding firmware name of the reference clock Yao Zi
2025-09-21 19:50 ` Stephen Boyd
2025-09-19 14:26 ` [PATCH v4 6/8] clk: loongson2: Add clock definitions for Loongson-2K0300 SoC Yao Zi
2025-09-21 19:50 ` Stephen Boyd
2025-09-19 14:26 ` [PATCH v4 7/8] LoongArch: dts: Add clock tree for Loongson-2K0300 Yao Zi
2025-09-19 14:26 ` [PATCH v4 8/8] LoongArch: dts: Remove clock-frquency from UART0 of CTCISZ Forever Pi Yao Zi
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