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arm64: dts: rockchip: Fix UART DMA support for RK3528

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[ Upstream commit ae019f0bdf ]

Trying to use UART2 DMA for Bluetooth on ArmSoM Sige1 result in tx
timeout when using dma-names = "tx", "rx" as required by the dt-binding:

  Bluetooth: hci0: command 0x0c03 tx timeout
  Bluetooth: hci0: BCM: Reset failed (-110)

Change the dmas order to fix UART DMA support on RK3528.

With this fixed Bluetooth can be loaded using DMA on ArmSoM Sige1:

  Bluetooth: hci0: BCM: chip id 159
  Bluetooth: hci0: BCM: features 0x0f
  Bluetooth: hci0: BCM4362A2
  Bluetooth: hci0: BCM4362A2 (000.017.017) build 0000
  Bluetooth: hci0: BCM4362A2 'brcm/BCM4362A2.hcd' Patch
  Bluetooth: hci0: BCM: features 0x0f
  Bluetooth: hci0: BCM43752A2 UART 37.4MHz Ampak AP6398 sLNA iLNA CL1 [Version: 1091.1173]
  Bluetooth: hci0: BCM4362A2 (000.017.017) build 1173

Fixes: ab6fcb58ae ("arm64: dts: rockchip: Add UART DMA support for RK3528")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://lore.kernel.org/r/20250709210831.3170458-1-jonas@kwiboo.se
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonas Karlman 2025-07-09 21:08:28 +00:00 committed by Greg Kroah-Hartman
parent 84fb573416
commit 9299a31411
1 changed files with 8 additions and 8 deletions
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16
arch/arm64/boot/dts/rockchip/rk3528.dtsi
View File

@ -445,7 +445,7 @@
clocks = <&cru SCLK_UART0>, <&cru PCLK_UART0>;
clock-names = "baudclk", "apb_pclk";
interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&dmac 8>, <&dmac 9>;
dmas = <&dmac 9>, <&dmac 8>;
reg-io-width = <4>;
reg-shift = <2>;
status = "disabled";
@ -457,7 +457,7 @@
clocks = <&cru SCLK_UART1>, <&cru PCLK_UART1>;
clock-names = "baudclk", "apb_pclk";
interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&dmac 10>, <&dmac 11>;
dmas = <&dmac 11>, <&dmac 10>;
reg-io-width = <4>;
reg-shift = <2>;
status = "disabled";
@ -469,7 +469,7 @@
clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>;
clock-names = "baudclk", "apb_pclk";
interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&dmac 12>, <&dmac 13>;
dmas = <&dmac 13>, <&dmac 12>;
reg-io-width = <4>;
reg-shift = <2>;
status = "disabled";
@ -481,7 +481,7 @@
clocks = <&cru SCLK_UART3>, <&cru PCLK_UART3>;
clock-names = "baudclk", "apb_pclk";
interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&dmac 14>, <&dmac 15>;
dmas = <&dmac 15>, <&dmac 14>;
reg-io-width = <4>;
reg-shift = <2>;
status = "disabled";
@ -493,7 +493,7 @@
clocks = <&cru SCLK_UART4>, <&cru PCLK_UART4>;
clock-names = "baudclk", "apb_pclk";
interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&dmac 16>, <&dmac 17>;
dmas = <&dmac 17>, <&dmac 16>;
reg-io-width = <4>;
reg-shift = <2>;
status = "disabled";
@ -505,7 +505,7 @@
clocks = <&cru SCLK_UART5>, <&cru PCLK_UART5>;
clock-names = "baudclk", "apb_pclk";
interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&dmac 18>, <&dmac 19>;
dmas = <&dmac 19>, <&dmac 18>;
reg-io-width = <4>;
reg-shift = <2>;
status = "disabled";
@ -517,7 +517,7 @@
clocks = <&cru SCLK_UART6>, <&cru PCLK_UART6>;
clock-names = "baudclk", "apb_pclk";
interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&dmac 20>, <&dmac 21>;
dmas = <&dmac 21>, <&dmac 20>;
reg-io-width = <4>;
reg-shift = <2>;
status = "disabled";
@ -529,7 +529,7 @@
clocks = <&cru SCLK_UART7>, <&cru PCLK_UART7>;
clock-names = "baudclk", "apb_pclk";
interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&dmac 22>, <&dmac 23>;
dmas = <&dmac 23>, <&dmac 22>;
reg-io-width = <4>;
reg-shift = <2>;
status = "disabled";