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From: Yao Zi <ziyao@disroot.org>
To: Yinbo Zhu <zhuyinbo@loongson.cn>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Huacai Chen <chenhuacai@kernel.org>,
	WANG Xuerui <kernel@xen0n.name>
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: [PATCH v4 4/8] clk: loongson2: Allow zero divisors for dividers
Date: Fri, 19 Sep 2025 14:26:45 +0000	[thread overview]
Message-ID: <20250919142649.58859-5-ziyao@disroot.org> (raw)
In-Reply-To: <20250919142649.58859-1-ziyao@disroot.org>

LS2K0300 and LS2K0500 ship divider clocks which allows zero divisors,
in which case the divider acts the same as one is specified.

Let's pass CLK_DIVIDER_ALLOW_ZERO when registering divider clocks to
prepare for future introduction of these clocks.

Signed-off-by: Yao Zi <ziyao@disroot.org>
---
 drivers/clk/clk-loongson2.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/clk-loongson2.c b/drivers/clk/clk-loongson2.c
index bba97270376c..7a916c7d2718 100644
--- a/drivers/clk/clk-loongson2.c
+++ b/drivers/clk/clk-loongson2.c
@@ -361,7 +361,8 @@ static int loongson2_clk_probe(struct platform_device *pdev)
 							  p->parent_name, 0,
 							  clp->base + p->reg_offset,
 							  p->div_shift, p->div_width,
-							  CLK_DIVIDER_ONE_BASED,
+							  CLK_DIVIDER_ONE_BASED |
+							  CLK_DIVIDER_ALLOW_ZERO,
 							  &clp->clk_lock);
 			break;
 		case CLK_TYPE_GATE:
-- 
2.50.1


  parent reply	other threads:[~2025-09-19 14:28 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
2025-09-19 14:26 ` Yao Zi [this message]
2025-09-21 19:50   ` [PATCH v4 4/8] clk: loongson2: Allow zero divisors for dividers 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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