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From: Chris Morgan <macroalpha82@gmail.com>
To: linux-rockchip@lists.infradead.org
Cc: devicetree@vger.kernel.org, sebastian.reichel@collabora.com,
	damon.ding@rock-chips.com, jbx6244@gmail.com, heiko@sntech.de,
	conor+dt@kernel.org, krzk+dt@kernel.org, robh@kernel.org,
	Chris Morgan <macromorgan@hotmail.com>
Subject: [PATCH 5/5] arm64: dts: rockchip: Fix DMA for Indiedroid Nova Bluetooth
Date: Wed,  5 Nov 2025 14:57:08 -0600	[thread overview]
Message-ID: <20251105205708.732125-6-macroalpha82@gmail.com> (raw)
In-Reply-To: <20251105205708.732125-1-macroalpha82@gmail.com>

From: Chris Morgan <macromorgan@hotmail.com>

When the device was first added, there was a problem with the bluetooth
controller that manifested when DMA was enabled for the underlying UART
interface. At some point in the intervening time the problem appears to
have been resolved. Add the UART rx and tx channels back to re-enable
UART.

Fixes: 3900160e164b ("arm64: dts: rockchip: Add Indiedroid Nova board")
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts b/arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts
index 0796ba6d2504..dee053afc6b6 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts
@@ -944,12 +944,9 @@ &uart2 {
 	status = "okay";
 };
 
-/* DMA seems to interfere with bluetooth device normal operation. */
 &uart9 {
 	pinctrl-0 = <&uart9m2_xfer>, <&uart9m2_ctsn>, <&uart9m2_rtsn>;
 	pinctrl-names = "default";
-	/delete-property/ dma-names;
-	/delete-property/ dmas;
 	uart-has-rtscts;
 	status = "okay";
 
-- 
2.43.0


  parent reply	other threads:[~2025-11-05 20:59 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-05 20:57 [PATCH 0/5] Indiedroid Nova Devicetree Updates Chris Morgan
2025-11-05 20:57 ` [PATCH 1/5] arm64: dts: rockchip: Add device type for Indiedroid Nova Chris Morgan
2025-11-05 20:57 ` [PATCH 2/5] arm64: dts: rockchip: Add Additional pinctrl defs " Chris Morgan
2025-11-06 19:45   ` Heiko Stuebner
2025-11-06 23:45     ` Chris Morgan
2025-11-05 20:57 ` [PATCH 3/5] arm64: dts: rockchip: enable NPU on " Chris Morgan
2025-11-05 20:57 ` [PATCH 4/5] arm64: dts: rockchip: Enable HS400 for " Chris Morgan
2025-11-05 23:18   ` Heiko Stuebner
2025-11-06  1:06     ` Chris Morgan
2025-11-05 20:57 ` Chris Morgan [this message]
2025-11-06 22:58 ` (subset) [PATCH 0/5] Indiedroid Nova Devicetree Updates Heiko Stuebner

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