Yes, these shouldn't be for all of Veyron, only Minnie, Mickey and
Speedy -- my mistake. I'll send an updated patch with your
suggestions.
Thanks
Abhishek
On Fri, Oct 25, 2019 at 3:50 PM Doug Anderson <dianders@xxxxxxxxxxxx> wrote:
>
> Hi,
>
> On Fri, Oct 25, 2019 at 2:55 PM Abhishek Pandit-Subedi
> <abhishekpandit@xxxxxxxxxxxx> wrote:
> >
> > This enables the Broadcom uart bluetooth driver on uart0 and gives it
> > ownership of its gpios. In order to use this, you must enable the
> > following kconfig options:
> > - CONFIG_BT_HCIUART_BCM
> > - CONFIG_SERIAL_DEV
> >
> > Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@xxxxxxxxxxxx>
> > ---
> >
> > arch/arm/boot/dts/rk3288-veyron.dtsi | 31 +++++++---------------------
> > 1 file changed, 7 insertions(+), 24 deletions(-)
> >
> > diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi
> > index 7525e3dd1fc1..8c9f91ba6f57 100644
> > --- a/arch/arm/boot/dts/rk3288-veyron.dtsi
> > +++ b/arch/arm/boot/dts/rk3288-veyron.dtsi
>
> You are changing this for _all_ veryon, not just those veyron devices
> using Broadcom. I don't think you want to change the marvell-based
> boards.
>
> ...presumably you'll want to make you change only affect minnie,
> speedy, and mickey.
>
>
> > @@ -23,30 +23,6 @@
> > reg = <0x0 0x0 0x0 0x80000000>;
> > };
> >
> > - bt_activity: bt-activity {
> > - compatible = "gpio-keys";
> > - pinctrl-names = "default";
> > - pinctrl-0 = <&bt_host_wake>;
> > -
> > - /*
> > - * HACK: until we have an LPM driver, we'll use an
> > - * ugly GPIO key to allow Bluetooth to wake from S3.
> > - * This is expected to only be used by BT modules that
> > - * use UART for comms. For BT modules that talk over
> > - * SDIO we should use a wakeup mechanism related to SDIO.
> > - *
> > - * Use KEY_RESERVED here since that will work as a wakeup but
> > - * doesn't get reported to higher levels (so doesn't confuse
> > - * Chrome).
> > - */
> > - bt-wake {
> > - label = "BT Wakeup";
> > - gpios = <&gpio4 RK_PD7 GPIO_ACTIVE_HIGH>;
> > - linux,code = <KEY_RESERVED>;
> > - wakeup-source;
> > - };
> > -
> > - };
> >
> > power_button: power-button {
> > compatible = "gpio-keys";
> > @@ -434,6 +410,13 @@
> > /* Pins don't include flow control by default; add that in */
> > pinctrl-names = "default";
> > pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
> > +
> > + bluetooth {
> > + compatible = "brcm,bcm43540-bt";
>
> You probably need some pinctrl entries here to make sure that things
> are properly configured, like:
>
> pinctrl-names = "default";
> pinctrl-0 = <&bt_host_wake>, <&bt_dev_wake>, <&bt_enable>;
>
> This would require defining bt_dev_wake and bt_enable and removing the
> hacky output-only versions they have now.
>
>
> > + host-wakeup-gpios = <&gpio4 RK_PD7 GPIO_ACTIVE_HIGH>;
> > + shutdown-gpios = <&gpio4 RK_PD5 GPIO_ACTIVE_LOW>;
>
> Right now gpio4 RK_PD5 is controlled by the "sdio_pwrseq". Should you
> remove it from there? Looks like it was a no-op for marvell which
> makes it a little easier.
>
>
> > + device-wakeup-gpios = <&gpio4 RK_PD2 GPIO_ACTIVE_HIGH>;
>
> You probably need to stop driving this in the pinctrl hogs for
> Broadcom boards...
>
>
> -Doug
