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Wed, 05 Nov 2025 12:59:47 -0800 (PST) Received: from localhost.localdomain ([2600:1700:fb0:1bc0::54]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-656c5713288sm160312eaf.5.2025.11.05.12.59.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Nov 2025 12:59:46 -0800 (PST) From: Chris Morgan 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 Subject: [PATCH 5/5] arm64: dts: rockchip: Fix DMA for Indiedroid Nova Bluetooth Date: Wed, 5 Nov 2025 14:57:08 -0600 Message-ID: <20251105205708.732125-6-macroalpha82@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251105205708.732125-1-macroalpha82@gmail.com> References: <20251105205708.732125-1-macroalpha82@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251105_125948_720022_EEF4B12B X-CRM114-Status: GOOD ( 11.06 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org From: Chris Morgan 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 --- 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 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip