| Message ID | 20230926204204.2120316-1-andreas@kemnade.info (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: dts: omap4-embt2ws: Add Bluetooth | expand |
On 26/09/2023 22:42, Andreas Kemnade wrote: > Since the required clock is now available, add bluetooth. > > Note: Firmware (bts file) from device vendor reroutes tx for some time > during initialisation and later put it back, producing timeouts in > bluetooth initialisation but ignoring that command leads to proper > initialisation. > > Signed-off-by: Andreas Kemnade <andreas@kemnade.info> > --- > Depends on: https://lore.kernel.org/linux-omap/20230916100515.1650336-6-andreas@kemnade.info/T/#u > arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts | 10 ++++++---- > 1 file changed, 6 insertions(+), 4 deletions(-) > > diff --git a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts > index 9d2f2d8639496..25b80385dc1f0 100644 > --- a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts > +++ b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts > @@ -478,10 +478,12 @@ &uart2 { > interrupts-extended = <&wakeupgen GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH > &omap4_pmx_core OMAP4_UART2_RX>; > > - /* > - * BT + GPS in WL1283 in WG7500 requiring CLK32KAUDIO of pmic > - * which does not have a driver > - */ > + bluetooth: tiwi { Node names should be generic. See also an explanation and list of examples (not exhaustive) in DT specification: https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation E.g. "bluetooth" Best regards, Krzysztof
On Wed, 27 Sep 2023 09:56:28 +02Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote: > On 26/09/2023 22:42, Andreas Kemnade wrote: > > Since the required clock is now available, add bluetooth. > > > > Note: Firmware (bts file) from device vendor reroutes tx for some time > > during initialisation and later put it back, producing timeouts in > > bluetooth initialisation but ignoring that command leads to proper > > initialisation. > > > > Signed-off-by: Andreas Kemnade <andreas@kemnade.info> > > --- > > Depends on: https://lore.kernel.org/linux-omap/20230916100515.1650336-6-andreas@kemnade.info/T/#u > > arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts | 10 ++++++---- > > 1 file changed, 6 insertions(+), 4 deletions(-) > > > > diff --git a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts > > index 9d2f2d8639496..25b80385dc1f0 100644 > > --- a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts > > +++ b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts > > @@ -478,10 +478,12 @@ &uart2 { > > interrupts-extended = <&wakeupgen GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH > > &omap4_pmx_core OMAP4_UART2_RX>; > > > > - /* > > - * BT + GPS in WL1283 in WG7500 requiring CLK32KAUDIO of pmic > > - * which does not have a driver > > - */ > > + bluetooth: tiwi { > > Node names should be generic. See also an explanation and list of > examples (not exhaustive) in DT specification: > https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation > > E.g. "bluetooth" > well, that is what I get currently as a reward from the kernel for describing the hardware and so the motivation for the patch, not necessarily the most important functionality. But the over the uart runs the ti shared transport protocol (also there is a non dt compatible driver in drivers/misc/ti-st) which provides more than Bluetooth, e.g. it also provides at least GNSS and FM (although it do not know if it works in this particular hardware). GPS/GNSS should work. So the node name would be bluetoothgnss then? Well, I think we do not need the label then. Regards, Andreas
On 27/09/2023 18:29, Andreas Kemnade wrote: > > > On Wed, 27 Sep 2023 09:56:28 +02Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote: > >> On 26/09/2023 22:42, Andreas Kemnade wrote: >>> Since the required clock is now available, add bluetooth. >>> >>> Note: Firmware (bts file) from device vendor reroutes tx for some time >>> during initialisation and later put it back, producing timeouts in >>> bluetooth initialisation but ignoring that command leads to proper >>> initialisation. >>> >>> Signed-off-by: Andreas Kemnade <andreas@kemnade.info> >>> --- >>> Depends on: https://lore.kernel.org/linux-omap/20230916100515.1650336-6-andreas@kemnade.info/T/#u >>> arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts | 10 ++++++---- >>> 1 file changed, 6 insertions(+), 4 deletions(-) >>> >>> diff --git a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts >>> index 9d2f2d8639496..25b80385dc1f0 100644 >>> --- a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts >>> +++ b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts >>> @@ -478,10 +478,12 @@ &uart2 { >>> interrupts-extended = <&wakeupgen GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH >>> &omap4_pmx_core OMAP4_UART2_RX>; >>> >>> - /* >>> - * BT + GPS in WL1283 in WG7500 requiring CLK32KAUDIO of pmic >>> - * which does not have a driver >>> - */ >>> + bluetooth: tiwi { >> >> Node names should be generic. See also an explanation and list of >> examples (not exhaustive) in DT specification: >> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation >> >> E.g. "bluetooth" >> > well, that is what I get currently as a reward from the kernel for describing > the hardware and so the motivation for the patch, not necessarily the most important > functionality. > > But the over the uart runs the ti shared transport protocol (also there is > a non dt compatible driver in drivers/misc/ti-st) which provides more than Bluetooth, > e.g. it also provides at least GNSS and FM (although it do not know if it works in this particular > hardware). GPS/GNSS should work. > > So the node name would be bluetoothgnss then? Well, I think we do not need the label then. bluetooth-gnss would work for me if it was accepted by bindings... but it is not, so this leaves you so far with "bluetooth". Best regards, Krzysztof
diff --git a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts index 9d2f2d8639496..25b80385dc1f0 100644 --- a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts +++ b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts @@ -478,10 +478,12 @@ &uart2 { interrupts-extended = <&wakeupgen GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH &omap4_pmx_core OMAP4_UART2_RX>; - /* - * BT + GPS in WL1283 in WG7500 requiring CLK32KAUDIO of pmic - * which does not have a driver - */ + bluetooth: tiwi { + compatible = "ti,wl1283-st"; + enable-gpios = <&gpio1 25 GPIO_ACTIVE_HIGH>; /* GPIO_25 */ + clocks = <&twl 1>; + clock-names = "ext_clock"; + }; }; &uart3 {
Since the required clock is now available, add bluetooth. Note: Firmware (bts file) from device vendor reroutes tx for some time during initialisation and later put it back, producing timeouts in bluetooth initialisation but ignoring that command leads to proper initialisation. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> --- Depends on: https://lore.kernel.org/linux-omap/20230916100515.1650336-6-andreas@kemnade.info/T/#u arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)