From: Fabio Estevam <festevam@gmail.com>
To: heiko@sntech.de
Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org,
Fabio Estevam <festevam@nabladev.com>,
stable@vger.kernel.org
Subject: [PATCH 1/3] arm64: dts: rockchip: Fix rk3399-roc-pc-plus analog audio
Date: Thu, 16 Jul 2026 22:07:34 -0300 [thread overview]
Message-ID: <20260717010736.578419-1-festevam@gmail.com> (raw)
From: Fabio Estevam <festevam@nabladev.com>
The ES8388 sound card on the rk3399-roc-pc-plus fails to probe because
i2s1 cannot claim its MCLK pin:
pinctrl: pin gpio4-0 already requested by ff880000.i2s; cannot claim for ff890000.i2s
pinctrl: error -EINVAL: pin-128 (ff890000.i2s)
pinctrl: error -EINVAL: could not request pin 128 (gpio4-0) from group i2s-8ch-mclk-pin
on device rockchip-pinctrl
GPIO4_A0 is routed as SCLK_I2S_8CH_OUT and is used by i2s1 as the
external MCLK for the ES8388 codec. The board dts already removes
GPIO4_A0 from the i2s0_8ch_bus pin group, but i2s0 still claims the
same pin through its bclk_off state.
Since the i2s driver requests both states, this blocks i2s1 pinctrl
setup and leaves the simple-audio-card deferred with a parse error.
Override i2s0_8ch_bus_bclk_off as well, matching the existing
i2s0_8ch_bus override, so GPIO4_A0 is left for i2s1/ES8388 audio.
Cc: stable@vger.kernel.org
Fixes: 6d9a7bd6a13c ("arm64: dts: rockchip: add support for Firefly ROC-RK3399-PC-PLUS")
Signed-off-by: Fabio Estevam <festevam@nabladev.com>
---
arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts
index 4f2831097624..f6d62ee51f1b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts
@@ -136,6 +136,18 @@ &i2s0_8ch_bus {
<3 RK_PD7 1 &pcfg_pull_none>;
};
+&i2s0_8ch_bus_bclk_off {
+ rockchip,pins =
+ <3 RK_PD0 RK_FUNC_GPIO &pcfg_pull_none>,
+ <3 RK_PD1 1 &pcfg_pull_none>,
+ <3 RK_PD2 1 &pcfg_pull_none>,
+ <3 RK_PD3 1 &pcfg_pull_none>,
+ <3 RK_PD4 1 &pcfg_pull_none>,
+ <3 RK_PD5 1 &pcfg_pull_none>,
+ <3 RK_PD6 1 &pcfg_pull_none>,
+ <3 RK_PD7 1 &pcfg_pull_none>;
+};
+
&i2s1 {
pinctrl-names = "default";
pinctrl-0 = <&i2s_8ch_mclk_pin>, <&i2s1_2ch_bus>;
--
2.43.0
next reply other threads:[~2026-07-17 1:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-17 1:07 Fabio Estevam [this message]
2026-07-17 1:07 ` [PATCH 2/3] arm64: dts: rockchip: Enable wireless on rk3399-roc-pc-plus Fabio Estevam
2026-07-17 1:07 ` [PATCH 3/3] arm64: dts: rockchip: Keep rk3399-roc-pc-plus work LED on Fabio Estevam
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