6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Diederik de Haas <didi.debian@xxxxxxxxx>
[ Upstream commit 08846522d9a7bccf18d4f97c3f39d03c7a193970 ]
Paragraph "3.4 Power up Timing Sequence" of the AzureWave-CM256SM
datasheet mentions the following about the BT_REG_ON pin, which is
connected to GPIO0_C4_d:
When this pin is low and WL_REG_ON is high,
the BT section is in reset.
Therefor set that pin to GPIO_ACTIVE_HIGH so that it can be pulled low
for a reset.
If set to GPIO_ACTIVE_LOW, the following errors are observed:
Bluetooth: hci0: command 0x0c03 tx timeout
Bluetooth: hci0: BCM: Reset failed (-110)
So fix the GPIO polarity by setting it to ACTIVE_HIGH.
This also matches what other devices with the same BT device have.
Fixes: 2b6a3f857550 ("arm64: dts: rockchip: Fix reset-gpios property on brcm BT nodes")
Signed-off-by: Diederik de Haas <didi.debian@xxxxxxxxx>
Link: https://lore.kernel.org/r/20241018145053.11928-2-didi.debian@xxxxxxxxx
Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3566-pinenote.dtsi | 2 +-
arch/arm64/boot/dts/rockchip/rk3566-radxa-cm3.dtsi | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-pinenote.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-pinenote.dtsi
index 27d89f48c42bd..9944c9d4ca9fe 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-pinenote.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-pinenote.dtsi
@@ -687,7 +687,7 @@
host-wakeup-gpios = <&gpio0 RK_PC3 GPIO_ACTIVE_HIGH>;
pinctrl-0 = <&bt_enable_h>, <&bt_host_wake_l>, <&bt_wake_h>;
pinctrl-names = "default";
- shutdown-gpios = <&gpio0 RK_PC4 GPIO_ACTIVE_LOW>;
+ shutdown-gpios = <&gpio0 RK_PC4 GPIO_ACTIVE_HIGH>;
vbat-supply = <&vcc_wl>;
vddio-supply = <&vcca_1v8_pmu>;
};
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-radxa-cm3.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-radxa-cm3.dtsi
index e9fa9bee995ae..1e36f73840dad 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-radxa-cm3.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-radxa-cm3.dtsi
@@ -404,7 +404,7 @@
host-wakeup-gpios = <&gpio2 RK_PB1 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&bt_host_wake_h &bt_reg_on_h &bt_wake_host_h>;
- shutdown-gpios = <&gpio2 RK_PC0 GPIO_ACTIVE_LOW>;
+ shutdown-gpios = <&gpio2 RK_PC0 GPIO_ACTIVE_HIGH>;
vbat-supply = <&vcc_3v3>;
vddio-supply = <&vcc_1v8>;
};
--
2.43.0
