Commit 224bf0fe authored by Stephan Gerhold's avatar Stephan Gerhold Committed by Linus Walleij

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: default avatarStephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20191219202052.19039-9-stephan@gerhold.netSigned-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent fbb7c4a1
...@@ -113,6 +113,19 @@ uart@80120000 { ...@@ -113,6 +113,19 @@ uart@80120000 {
pinctrl-names = "default", "sleep"; pinctrl-names = "default", "sleep";
pinctrl-0 = <&u0_a_1_default>; pinctrl-0 = <&u0_a_1_default>;
pinctrl-1 = <&u0_a_1_sleep>; 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 */ /* GPF UART */
...@@ -396,6 +409,20 @@ golden_cfg1 { ...@@ -396,6 +409,20 @@ golden_cfg1 {
}; };
}; };
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 {
vibrator_default: vibrator_default { vibrator_default: vibrator_default {
golden_cfg1 { golden_cfg1 {
......
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