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From: Chen-Yu Tsai <wenst@chromium.org>
To: Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>
Cc: Chen-Yu Tsai <wenst@chromium.org>,
	devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Icenowy Zheng <zhengxingda@iscas.ac.cn>,
	YoungJoon Lee <getfeus@gmail.com>
Subject: [PATCH RESEND v4 1/2] arm64: dts: mediatek: mt8173: Fix MFG_ASYNC power domain clock
Date: Wed, 16 Sep 2026 11:59:51 +0800	[thread overview]
Message-ID: <20260916035953.3111607-1-wenst@chromium.org> (raw)

The MFG_ASYNC domain, which is likely associated to the whole MFG block,
currently specifies clk26m as its domain clock. This is bogus, since the
clock is an external crystal with no controls. Also, the MFG block has
a independent CLK_TOP_AXI_MFG_IN_SEL clock, which according to the block
diagram, gates access to the hardware registers. Having this one as the
domain clock makes much more sense. This also fixes access to the MFGTOP
registers.

Change the MFG_ASYNC domain clock to CLK_TOP_AXI_MFG_IN_SEL.

Fixes: 8b6562644df9 ("arm64: dts: mediatek: Add mt8173 power domain controller")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
 arch/arm64/boot/dts/mediatek/mt8173.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index b78dbedfeca8..e75ed4bd458f 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -505,7 +505,7 @@ power-domain@MT8173_POWER_DOMAIN_USB {
 				};
 				mfg_async: power-domain@MT8173_POWER_DOMAIN_MFG_ASYNC {
 					reg = <MT8173_POWER_DOMAIN_MFG_ASYNC>;
-					clocks = <&clk26m>;
+					clocks = <&topckgen CLK_TOP_AXI_MFG_IN_SEL>;
 					clock-names = "mfg";
 					#address-cells = <1>;
 					#size-cells = <0>;
-- 
2.55.0.1032.g73a4cd73de-goog


             reply	other threads:[~2026-09-16  4:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-16  3:59 Chen-Yu Tsai [this message]
2026-09-16  3:59 ` [PATCH RESEND v4 2/2] arm64: dts: mediatek: mt8173: Add GPU device nodes Chen-Yu Tsai
2026-09-16 13:04 ` [PATCH RESEND v4 1/2] arm64: dts: mediatek: mt8173: Fix MFG_ASYNC power domain clock AngeloGioacchino Del Regno

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