| Message ID | 20190409231405.189335-1-mka@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: dts: rockchip: Add BT_EN to the power sequence for veyron | expand |
Hi, On Tue, Apr 9, 2019 at 4:14 PM Matthias Kaehlcke <mka@chromium.org> wrote: > > Add GPIO D5 (BT_ENABLE_L) as reset-GPIO to the power sequence for the > Bluetooth/WiFi module. On devices with a Broadcom module the signal > needs to be asserted to use Bluetooth. > > Note that BT_ENABLE_L is a misnomer in the schematics, the signal > actually is active-high. > > Signed-off-by: Matthias Kaehlcke <mka@chromium.org> > --- > arch/arm/boot/dts/rk3288-veyron.dtsi | 13 ++++++++++--- > 1 file changed, 10 insertions(+), 3 deletions(-) Looks right to me. Thanks! Note that this might enable the signals in a different order than in the downstream Chrome OS kernel, but it looks like it doesn't matter in this case since the datasheet for the AzureWave module talks about enabling / disabling these pins in either order. Reviewed-by: Douglas Anderson <dianders@chromium.org>
Am Mittwoch, 10. April 2019, 01:14:05 CEST schrieb Matthias Kaehlcke: > Add GPIO D5 (BT_ENABLE_L) as reset-GPIO to the power sequence for the > Bluetooth/WiFi module. On devices with a Broadcom module the signal > needs to be asserted to use Bluetooth. > > Note that BT_ENABLE_L is a misnomer in the schematics, the signal > actually is active-high. > > Signed-off-by: Matthias Kaehlcke <mka@chromium.org> applied for 5.2 with Doug's rb. Thanks Heiko
diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi index 0bc2409f6903..a4cd851dc313 100644 --- a/arch/arm/boot/dts/rk3288-veyron.dtsi +++ b/arch/arm/boot/dts/rk3288-veyron.dtsi @@ -62,12 +62,19 @@ pinctrl-0 = <&bt_enable_l>, <&wifi_enable_h>; /* - * On the module itself this is one of these (depending - * on the actual card populated): + * Depending on the actual card populated GPIO4 D4 and D5 + * correspond to one of these signals on the module: + * + * D4: * - SDIO_RESET_L_WL_REG_ON * - PDN (power down when low) + * + * D5: + * - BT_I2S_WS_BT_RFDISABLE_L + * - No connect */ - reset-gpios = <&gpio4 RK_PD4 GPIO_ACTIVE_LOW>; + reset-gpios = <&gpio4 RK_PD4 GPIO_ACTIVE_LOW>, + <&gpio4 RK_PD5 GPIO_ACTIVE_LOW>; }; vcc_5v: vcc-5v {
Add GPIO D5 (BT_ENABLE_L) as reset-GPIO to the power sequence for the Bluetooth/WiFi module. On devices with a Broadcom module the signal needs to be asserted to use Bluetooth. Note that BT_ENABLE_L is a misnomer in the schematics, the signal actually is active-high. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> --- arch/arm/boot/dts/rk3288-veyron.dtsi | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)