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| author | Stephan Gerhold <stephan@gerhold.net> | 2019-12-19 23:20:51 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-12-26 02:12:25 +0300 |
| commit | 224bf0fe729237c4da241e5966abfc1bfb4353a3 (patch) | |
| tree | 73d7892192eb34df7464c96ae6d3c57135eb49f5 /arch/arm/boot/dts/ste-ux500-samsung-golden.dts | |
| parent | fbb7c4a13c96c1e76d92b007a6852cecb27f7b0f (diff) | |
| download | linux-224bf0fe729237c4da241e5966abfc1bfb4353a3.tar.xz | |
ARM: dts: ux500: samsung-golden: Add Bluetooth
samsung-golden uses a BCM4334 WiFi+BT combo chip.
The BT part is connected via UART and supported by the hci_bcm
driver in mainline.
Add the necessary device tree changes to make it load correctly.
It requires (seemingly) device-specific firmware that can be
extracted from the stock Android system used on samsung-golden:
- /system/bin/bcm4334.hcd -> /lib/firmware/brcm/BCM4334B0.hcd
On my device, scanning for other Bluetooth devices works just fine,
but for some reason it keeps disconnecting immediately
when attempting to connect to an other device.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20191219202052.19039-9-stephan@gerhold.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/boot/dts/ste-ux500-samsung-golden.dts')
| -rw-r--r-- | arch/arm/boot/dts/ste-ux500-samsung-golden.dts | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/ste-ux500-samsung-golden.dts b/arch/arm/boot/dts/ste-ux500-samsung-golden.dts index d22b2879c46a..313f0ab16866 100644 --- a/arch/arm/boot/dts/ste-ux500-samsung-golden.dts +++ b/arch/arm/boot/dts/ste-ux500-samsung-golden.dts @@ -113,6 +113,19 @@ pinctrl-names = "default", "sleep"; pinctrl-0 = <&u0_a_1_default>; pinctrl-1 = <&u0_a_1_sleep>; + + bluetooth { + compatible = "brcm,bcm4330-bt"; + /* GPIO222 (BT_VREG_ON) */ + shutdown-gpios = <&gpio6 30 GPIO_ACTIVE_HIGH>; + /* GPIO199 (BT_WAKE) */ + device-wakeup-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>; + /* GPIO97 (BT_HOST_WAKE) */ + host-wakeup-gpios = <&gpio3 1 GPIO_ACTIVE_HIGH>; + + pinctrl-names = "default"; + pinctrl-0 = <&bluetooth_default>; + }; }; /* GPF UART */ @@ -396,6 +409,20 @@ }; }; + bluetooth { + bluetooth_default: bluetooth_default { + golden_cfg1 { + pins = "GPIO199_AH23", /* BT_WAKE */ + "GPIO222_AJ9"; /* BT_VREG_ON */ + ste,config = <&gpio_out_lo>; + }; + golden_cfg2 { + pins = "GPIO97_D9"; /* BT_HOST_WAKE */ + ste,config = <&gpio_in_nopull>; + }; + }; + }; + vibrator { vibrator_default: vibrator_default { golden_cfg1 { |