Hi Maxime and All,
We are trying to bring-up AP6330 Wifi chip for A64 board. We noticed
to have an external rtc clock has driven from wifi chip.
So the devicetree is configured according to this as below.
/ {
wifi_pwrseq: wifi-pwrseq {
compatible = "mmc-pwrseq-simple";
clocks = <&rtc 1>;
clock-names = "ext_clock";
reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
post-power-on-delay-ms = <400>;
};
};
&rtc {
clock-output-names = "rtc-osc32k", "rtc-osc32k-out";
clocks = <&osc32k>;
#clock-cells = <1>;
};
&mmc1 {
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins>;
vmmc-supply = <®_dcdc1>;
vqmmc-supply = <®_eldo1>;
mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
non-removable;
status = "okay";
brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&r_pio>;
interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* WL-WAKE-AP: PL3 */
interrupt-names = "host-wake";
};
};
And observed rtc-osc32k-out clock is never enabled[1] and the value of
LOSC_OUT_GATING is 0x0 which eventually not enabling
LOSC_OUT_GATING_EN
Pls. let us know if we miss anything here?
[1] https://paste.ubuntu.com/p/X2By4q8kD2/
Jagan.
--
Jagan Teki
Senior Linux Kernel Engineer | Amarula Solutions
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.
Hi,
On Mon, May 14, 2018 at 12:37:49PM +0530, Jagan Teki wrote:
> Hi Maxime and All,
>
> We are trying to bring-up AP6330 Wifi chip for A64 board. We noticed
> to have an external rtc clock has driven from wifi chip.
>
> So the devicetree is configured according to this as below.
>
> / {
> wifi_pwrseq: wifi-pwrseq {
> compatible = "mmc-pwrseq-simple";
> clocks = <&rtc 1>;
> clock-names = "ext_clock";
> reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
> post-power-on-delay-ms = <400>;
> };
> };
>
> &rtc {
> clock-output-names = "rtc-osc32k", "rtc-osc32k-out";
> clocks = <&osc32k>;
> #clock-cells = <1>;
> };
>
> &mmc1 {
> pinctrl-names = "default";
> pinctrl-0 = <&mmc1_pins>;
> vmmc-supply = <®_dcdc1>;
> vqmmc-supply = <®_eldo1>;
> mmc-pwrseq = <&wifi_pwrseq>;
> bus-width = <4>;
> non-removable;
> status = "okay";
>
> brcmf: wifi@1 {
> reg = <1>;
> compatible = "brcm,bcm4329-fmac";
> interrupt-parent = <&r_pio>;
> interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* WL-WAKE-AP: PL3 */
> interrupt-names = "host-wake";
> };
> };
>
> And observed rtc-osc32k-out clock is never enabled[1] and the value of
> LOSC_OUT_GATING is 0x0 which eventually not enabling
> LOSC_OUT_GATING_EN
>
> Pls. let us know if we miss anything here?
>
> [1] https://paste.ubuntu.com/p/X2By4q8kD2/
Could you paste your config and the logs from a boot to?
Thanks!
Maxime
--
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
On Mon, May 14, 2018 at 1:27 PM, Maxime Ripard
<[email protected]> wrote:
> Hi,
>
> On Mon, May 14, 2018 at 12:37:49PM +0530, Jagan Teki wrote:
>> Hi Maxime and All,
>>
>> We are trying to bring-up AP6330 Wifi chip for A64 board. We noticed
>> to have an external rtc clock has driven from wifi chip.
>>
>> So the devicetree is configured according to this as below.
>>
>> / {
>> wifi_pwrseq: wifi-pwrseq {
>> compatible = "mmc-pwrseq-simple";
>> clocks = <&rtc 1>;
>> clock-names = "ext_clock";
>> reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
>> post-power-on-delay-ms = <400>;
>> };
>> };
>>
>> &rtc {
>> clock-output-names = "rtc-osc32k", "rtc-osc32k-out";
>> clocks = <&osc32k>;
>> #clock-cells = <1>;
>> };
>>
>> &mmc1 {
>> pinctrl-names = "default";
>> pinctrl-0 = <&mmc1_pins>;
>> vmmc-supply = <®_dcdc1>;
>> vqmmc-supply = <®_eldo1>;
>> mmc-pwrseq = <&wifi_pwrseq>;
>> bus-width = <4>;
>> non-removable;
>> status = "okay";
>>
>> brcmf: wifi@1 {
>> reg = <1>;
>> compatible = "brcm,bcm4329-fmac";
>> interrupt-parent = <&r_pio>;
>> interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* WL-WAKE-AP: PL3 */
>> interrupt-names = "host-wake";
>> };
>> };
>>
>> And observed rtc-osc32k-out clock is never enabled[1] and the value of
>> LOSC_OUT_GATING is 0x0 which eventually not enabling
>> LOSC_OUT_GATING_EN
>>
>> Pls. let us know if we miss anything here?
>>
>> [1] https://paste.ubuntu.com/p/X2By4q8kD2/
>
> Could you paste your config and the logs from a boot to?
.config
https://paste.ubuntu.com/p/w9w2KB7RFc/
dmesg
https://paste.ubuntu.com/p/mrZGk5bWRR/
On Mon, May 14, 2018 at 01:34:56PM +0530, Jagan Teki wrote:
> On Mon, May 14, 2018 at 1:27 PM, Maxime Ripard
> <[email protected]> wrote:
> > Hi,
> >
> > On Mon, May 14, 2018 at 12:37:49PM +0530, Jagan Teki wrote:
> >> Hi Maxime and All,
> >>
> >> We are trying to bring-up AP6330 Wifi chip for A64 board. We noticed
> >> to have an external rtc clock has driven from wifi chip.
> >>
> >> So the devicetree is configured according to this as below.
> >>
> >> / {
> >> wifi_pwrseq: wifi-pwrseq {
> >> compatible = "mmc-pwrseq-simple";
> >> clocks = <&rtc 1>;
> >> clock-names = "ext_clock";
> >> reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
> >> post-power-on-delay-ms = <400>;
> >> };
> >> };
> >>
> >> &rtc {
> >> clock-output-names = "rtc-osc32k", "rtc-osc32k-out";
> >> clocks = <&osc32k>;
> >> #clock-cells = <1>;
> >> };
> >>
> >> &mmc1 {
> >> pinctrl-names = "default";
> >> pinctrl-0 = <&mmc1_pins>;
> >> vmmc-supply = <®_dcdc1>;
> >> vqmmc-supply = <®_eldo1>;
> >> mmc-pwrseq = <&wifi_pwrseq>;
> >> bus-width = <4>;
> >> non-removable;
> >> status = "okay";
> >>
> >> brcmf: wifi@1 {
> >> reg = <1>;
> >> compatible = "brcm,bcm4329-fmac";
> >> interrupt-parent = <&r_pio>;
> >> interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* WL-WAKE-AP: PL3 */
> >> interrupt-names = "host-wake";
> >> };
> >> };
> >>
> >> And observed rtc-osc32k-out clock is never enabled[1] and the value of
> >> LOSC_OUT_GATING is 0x0 which eventually not enabling
> >> LOSC_OUT_GATING_EN
> >>
> >> Pls. let us know if we miss anything here?
> >>
> >> [1] https://paste.ubuntu.com/p/X2By4q8kD2/
> >
> > Could you paste your config and the logs from a boot to?
>
> .config
> https://paste.ubuntu.com/p/w9w2KB7RFc/
>
> dmesg
> https://paste.ubuntu.com/p/mrZGk5bWRR/
This is kind of weird. Have you tested with a 4.17 kernel? We have
runtime_pm changes lined up in next, so that might be a regression
there, even though we tested it with Quentin at some point.
Maxime
--
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
On Mon, May 14, 2018 at 1:57 PM, Maxime Ripard
<[email protected]> wrote:
> On Mon, May 14, 2018 at 01:34:56PM +0530, Jagan Teki wrote:
>> On Mon, May 14, 2018 at 1:27 PM, Maxime Ripard
>> <[email protected]> wrote:
>> > Hi,
>> >
>> > On Mon, May 14, 2018 at 12:37:49PM +0530, Jagan Teki wrote:
>> >> Hi Maxime and All,
>> >>
>> >> We are trying to bring-up AP6330 Wifi chip for A64 board. We noticed
>> >> to have an external rtc clock has driven from wifi chip.
>> >>
>> >> So the devicetree is configured according to this as below.
>> >>
>> >> / {
>> >> wifi_pwrseq: wifi-pwrseq {
>> >> compatible = "mmc-pwrseq-simple";
>> >> clocks = <&rtc 1>;
>> >> clock-names = "ext_clock";
>> >> reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
>> >> post-power-on-delay-ms = <400>;
>> >> };
>> >> };
>> >>
>> >> &rtc {
>> >> clock-output-names = "rtc-osc32k", "rtc-osc32k-out";
>> >> clocks = <&osc32k>;
>> >> #clock-cells = <1>;
>> >> };
>> >>
>> >> &mmc1 {
>> >> pinctrl-names = "default";
>> >> pinctrl-0 = <&mmc1_pins>;
>> >> vmmc-supply = <®_dcdc1>;
>> >> vqmmc-supply = <®_eldo1>;
>> >> mmc-pwrseq = <&wifi_pwrseq>;
>> >> bus-width = <4>;
>> >> non-removable;
>> >> status = "okay";
>> >>
>> >> brcmf: wifi@1 {
>> >> reg = <1>;
>> >> compatible = "brcm,bcm4329-fmac";
>> >> interrupt-parent = <&r_pio>;
>> >> interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* WL-WAKE-AP: PL3 */
>> >> interrupt-names = "host-wake";
>> >> };
>> >> };
>> >>
>> >> And observed rtc-osc32k-out clock is never enabled[1] and the value of
>> >> LOSC_OUT_GATING is 0x0 which eventually not enabling
>> >> LOSC_OUT_GATING_EN
>> >>
>> >> Pls. let us know if we miss anything here?
>> >>
>> >> [1] https://paste.ubuntu.com/p/X2By4q8kD2/
>> >
>> > Could you paste your config and the logs from a boot to?
>>
>> .config
>> https://paste.ubuntu.com/p/w9w2KB7RFc/
>>
>> dmesg
>> https://paste.ubuntu.com/p/mrZGk5bWRR/
>
> This is kind of weird. Have you tested with a 4.17 kernel? We have
> runtime_pm changes lined up in next, so that might be a regression
> there, even though we tested it with Quentin at some point.
This is 4.17-rc4 do you want to try it on 4.16 ?
On Mon, May 14, 2018 at 02:34:22PM +0530, Jagan Teki wrote:
> On Mon, May 14, 2018 at 1:57 PM, Maxime Ripard
> <[email protected]> wrote:
> > On Mon, May 14, 2018 at 01:34:56PM +0530, Jagan Teki wrote:
> >> On Mon, May 14, 2018 at 1:27 PM, Maxime Ripard
> >> <[email protected]> wrote:
> >> > Hi,
> >> >
> >> > On Mon, May 14, 2018 at 12:37:49PM +0530, Jagan Teki wrote:
> >> >> Hi Maxime and All,
> >> >>
> >> >> We are trying to bring-up AP6330 Wifi chip for A64 board. We noticed
> >> >> to have an external rtc clock has driven from wifi chip.
> >> >>
> >> >> So the devicetree is configured according to this as below.
> >> >>
> >> >> / {
> >> >> wifi_pwrseq: wifi-pwrseq {
> >> >> compatible = "mmc-pwrseq-simple";
> >> >> clocks = <&rtc 1>;
> >> >> clock-names = "ext_clock";
> >> >> reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
> >> >> post-power-on-delay-ms = <400>;
> >> >> };
> >> >> };
> >> >>
> >> >> &rtc {
> >> >> clock-output-names = "rtc-osc32k", "rtc-osc32k-out";
> >> >> clocks = <&osc32k>;
> >> >> #clock-cells = <1>;
> >> >> };
> >> >>
> >> >> &mmc1 {
> >> >> pinctrl-names = "default";
> >> >> pinctrl-0 = <&mmc1_pins>;
> >> >> vmmc-supply = <®_dcdc1>;
> >> >> vqmmc-supply = <®_eldo1>;
> >> >> mmc-pwrseq = <&wifi_pwrseq>;
> >> >> bus-width = <4>;
> >> >> non-removable;
> >> >> status = "okay";
> >> >>
> >> >> brcmf: wifi@1 {
> >> >> reg = <1>;
> >> >> compatible = "brcm,bcm4329-fmac";
> >> >> interrupt-parent = <&r_pio>;
> >> >> interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* WL-WAKE-AP: PL3 */
> >> >> interrupt-names = "host-wake";
> >> >> };
> >> >> };
> >> >>
> >> >> And observed rtc-osc32k-out clock is never enabled[1] and the value of
> >> >> LOSC_OUT_GATING is 0x0 which eventually not enabling
> >> >> LOSC_OUT_GATING_EN
> >> >>
> >> >> Pls. let us know if we miss anything here?
> >> >>
> >> >> [1] https://paste.ubuntu.com/p/X2By4q8kD2/
> >> >
> >> > Could you paste your config and the logs from a boot to?
> >>
> >> .config
> >> https://paste.ubuntu.com/p/w9w2KB7RFc/
> >>
> >> dmesg
> >> https://paste.ubuntu.com/p/mrZGk5bWRR/
> >
> > This is kind of weird. Have you tested with a 4.17 kernel? We have
> > runtime_pm changes lined up in next, so that might be a regression
> > there, even though we tested it with Quentin at some point.
>
> This is 4.17-rc4 do you want to try it on 4.16 ?
No, this is next-20180503. Please try with 4.17-rc4
Maxime
--
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
On Mon, May 14, 2018 at 2:36 PM, Maxime Ripard
<[email protected]> wrote:
> On Mon, May 14, 2018 at 02:34:22PM +0530, Jagan Teki wrote:
>> On Mon, May 14, 2018 at 1:57 PM, Maxime Ripard
>> <[email protected]> wrote:
>> > On Mon, May 14, 2018 at 01:34:56PM +0530, Jagan Teki wrote:
>> >> On Mon, May 14, 2018 at 1:27 PM, Maxime Ripard
>> >> <[email protected]> wrote:
>> >> > Hi,
>> >> >
>> >> > On Mon, May 14, 2018 at 12:37:49PM +0530, Jagan Teki wrote:
>> >> >> Hi Maxime and All,
>> >> >>
>> >> >> We are trying to bring-up AP6330 Wifi chip for A64 board. We noticed
>> >> >> to have an external rtc clock has driven from wifi chip.
>> >> >>
>> >> >> So the devicetree is configured according to this as below.
>> >> >>
>> >> >> / {
>> >> >> wifi_pwrseq: wifi-pwrseq {
>> >> >> compatible = "mmc-pwrseq-simple";
>> >> >> clocks = <&rtc 1>;
>> >> >> clock-names = "ext_clock";
>> >> >> reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
>> >> >> post-power-on-delay-ms = <400>;
>> >> >> };
>> >> >> };
>> >> >>
>> >> >> &rtc {
>> >> >> clock-output-names = "rtc-osc32k", "rtc-osc32k-out";
>> >> >> clocks = <&osc32k>;
>> >> >> #clock-cells = <1>;
>> >> >> };
>> >> >>
>> >> >> &mmc1 {
>> >> >> pinctrl-names = "default";
>> >> >> pinctrl-0 = <&mmc1_pins>;
>> >> >> vmmc-supply = <®_dcdc1>;
>> >> >> vqmmc-supply = <®_eldo1>;
>> >> >> mmc-pwrseq = <&wifi_pwrseq>;
>> >> >> bus-width = <4>;
>> >> >> non-removable;
>> >> >> status = "okay";
>> >> >>
>> >> >> brcmf: wifi@1 {
>> >> >> reg = <1>;
>> >> >> compatible = "brcm,bcm4329-fmac";
>> >> >> interrupt-parent = <&r_pio>;
>> >> >> interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* WL-WAKE-AP: PL3 */
>> >> >> interrupt-names = "host-wake";
>> >> >> };
>> >> >> };
>> >> >>
>> >> >> And observed rtc-osc32k-out clock is never enabled[1] and the value of
>> >> >> LOSC_OUT_GATING is 0x0 which eventually not enabling
>> >> >> LOSC_OUT_GATING_EN
>> >> >>
>> >> >> Pls. let us know if we miss anything here?
>> >> >>
>> >> >> [1] https://paste.ubuntu.com/p/X2By4q8kD2/
>> >> >
>> >> > Could you paste your config and the logs from a boot to?
>> >>
>> >> .config
>> >> https://paste.ubuntu.com/p/w9w2KB7RFc/
>> >>
>> >> dmesg
>> >> https://paste.ubuntu.com/p/mrZGk5bWRR/
>> >
>> > This is kind of weird. Have you tested with a 4.17 kernel? We have
>> > runtime_pm changes lined up in next, so that might be a regression
>> > there, even though we tested it with Quentin at some point.
>>
>> This is 4.17-rc4 do you want to try it on 4.16 ?
>
> No, this is next-20180503. Please try with 4.17-rc4
Couldn't find any different in behaviour [2]
[2] https://paste.ubuntu.com/p/m3PGBwrv6W/
On Mon, May 14, 2018 at 03:12:49PM +0530, Jagan Teki wrote:
> On Mon, May 14, 2018 at 2:36 PM, Maxime Ripard
> <[email protected]> wrote:
> > On Mon, May 14, 2018 at 02:34:22PM +0530, Jagan Teki wrote:
> >> On Mon, May 14, 2018 at 1:57 PM, Maxime Ripard
> >> <[email protected]> wrote:
> >> > On Mon, May 14, 2018 at 01:34:56PM +0530, Jagan Teki wrote:
> >> >> On Mon, May 14, 2018 at 1:27 PM, Maxime Ripard
> >> >> <[email protected]> wrote:
> >> >> > Hi,
> >> >> >
> >> >> > On Mon, May 14, 2018 at 12:37:49PM +0530, Jagan Teki wrote:
> >> >> >> Hi Maxime and All,
> >> >> >>
> >> >> >> We are trying to bring-up AP6330 Wifi chip for A64 board. We noticed
> >> >> >> to have an external rtc clock has driven from wifi chip.
> >> >> >>
> >> >> >> So the devicetree is configured according to this as below.
> >> >> >>
> >> >> >> / {
> >> >> >> wifi_pwrseq: wifi-pwrseq {
> >> >> >> compatible = "mmc-pwrseq-simple";
> >> >> >> clocks = <&rtc 1>;
> >> >> >> clock-names = "ext_clock";
> >> >> >> reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
> >> >> >> post-power-on-delay-ms = <400>;
> >> >> >> };
> >> >> >> };
> >> >> >>
> >> >> >> &rtc {
> >> >> >> clock-output-names = "rtc-osc32k", "rtc-osc32k-out";
> >> >> >> clocks = <&osc32k>;
> >> >> >> #clock-cells = <1>;
> >> >> >> };
> >> >> >>
> >> >> >> &mmc1 {
> >> >> >> pinctrl-names = "default";
> >> >> >> pinctrl-0 = <&mmc1_pins>;
> >> >> >> vmmc-supply = <®_dcdc1>;
> >> >> >> vqmmc-supply = <®_eldo1>;
> >> >> >> mmc-pwrseq = <&wifi_pwrseq>;
> >> >> >> bus-width = <4>;
> >> >> >> non-removable;
> >> >> >> status = "okay";
> >> >> >>
> >> >> >> brcmf: wifi@1 {
> >> >> >> reg = <1>;
> >> >> >> compatible = "brcm,bcm4329-fmac";
> >> >> >> interrupt-parent = <&r_pio>;
> >> >> >> interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* WL-WAKE-AP: PL3 */
> >> >> >> interrupt-names = "host-wake";
> >> >> >> };
> >> >> >> };
> >> >> >>
> >> >> >> And observed rtc-osc32k-out clock is never enabled[1] and the value of
> >> >> >> LOSC_OUT_GATING is 0x0 which eventually not enabling
> >> >> >> LOSC_OUT_GATING_EN
> >> >> >>
> >> >> >> Pls. let us know if we miss anything here?
> >> >> >>
> >> >> >> [1] https://paste.ubuntu.com/p/X2By4q8kD2/
> >> >> >
> >> >> > Could you paste your config and the logs from a boot to?
> >> >>
> >> >> .config
> >> >> https://paste.ubuntu.com/p/w9w2KB7RFc/
> >> >>
> >> >> dmesg
> >> >> https://paste.ubuntu.com/p/mrZGk5bWRR/
> >> >
> >> > This is kind of weird. Have you tested with a 4.17 kernel? We have
> >> > runtime_pm changes lined up in next, so that might be a regression
> >> > there, even though we tested it with Quentin at some point.
> >>
> >> This is 4.17-rc4 do you want to try it on 4.16 ?
> >
> > No, this is next-20180503. Please try with 4.17-rc4
>
> Couldn't find any different in behaviour [2]
>
> [2] https://paste.ubuntu.com/p/m3PGBwrv6W/
It's hard to tell without the board, but have you looked at the return
value of devm_clk_get in the pwrseq code?
Enabling the clk ftrace events would also help.
Maxime
--
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
Hi Maxime
On Mon, May 14, 2018 at 1:17 PM, Maxime Ripard
<[email protected]> wrote:
> On Mon, May 14, 2018 at 03:12:49PM +0530, Jagan Teki wrote:
>> On Mon, May 14, 2018 at 2:36 PM, Maxime Ripard
>> <[email protected]> wrote:
>> > On Mon, May 14, 2018 at 02:34:22PM +0530, Jagan Teki wrote:
>> >> On Mon, May 14, 2018 at 1:57 PM, Maxime Ripard
>> >> <[email protected]> wrote:
>> >> > On Mon, May 14, 2018 at 01:34:56PM +0530, Jagan Teki wrote:
>> >> >> On Mon, May 14, 2018 at 1:27 PM, Maxime Ripard
>> >> >> <[email protected]> wrote:
>> >> >> > Hi,
>> >> >> >
>> >> >> > On Mon, May 14, 2018 at 12:37:49PM +0530, Jagan Teki wrote:
>> >> >> >> Hi Maxime and All,
>> >> >> >>
>> >> >> >> We are trying to bring-up AP6330 Wifi chip for A64 board. We noticed
>> >> >> >> to have an external rtc clock has driven from wifi chip.
>> >> >> >>
>> >> >> >> So the devicetree is configured according to this as below.
>> >> >> >>
>> >> >> >> / {
>> >> >> >> wifi_pwrseq: wifi-pwrseq {
>> >> >> >> compatible = "mmc-pwrseq-simple";
>> >> >> >> clocks = <&rtc 1>;
>> >> >> >> clock-names = "ext_clock";
>> >> >> >> reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
>> >> >> >> post-power-on-delay-ms = <400>;
>> >> >> >> };
>> >> >> >> };
>> >> >> >>
>> >> >> >> &rtc {
>> >> >> >> clock-output-names = "rtc-osc32k", "rtc-osc32k-out";
>> >> >> >> clocks = <&osc32k>;
>> >> >> >> #clock-cells = <1>;
>> >> >> >> };
>> >> >> >>
>> >> >> >> &mmc1 {
>> >> >> >> pinctrl-names = "default";
>> >> >> >> pinctrl-0 = <&mmc1_pins>;
>> >> >> >> vmmc-supply = <®_dcdc1>;
>> >> >> >> vqmmc-supply = <®_eldo1>;
>> >> >> >> mmc-pwrseq = <&wifi_pwrseq>;
>> >> >> >> bus-width = <4>;
>> >> >> >> non-removable;
>> >> >> >> status = "okay";
>> >> >> >>
>> >> >> >> brcmf: wifi@1 {
>> >> >> >> reg = <1>;
>> >> >> >> compatible = "brcm,bcm4329-fmac";
>> >> >> >> interrupt-parent = <&r_pio>;
>> >> >> >> interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* WL-WAKE-AP: PL3 */
>> >> >> >> interrupt-names = "host-wake";
>> >> >> >> };
>> >> >> >> };
>> >> >> >>
>> >> >> >> And observed rtc-osc32k-out clock is never enabled[1] and the value of
>> >> >> >> LOSC_OUT_GATING is 0x0 which eventually not enabling
>> >> >> >> LOSC_OUT_GATING_EN
>> >> >> >>
>> >> >> >> Pls. let us know if we miss anything here?
>> >> >> >>
>> >> >> >> [1] https://paste.ubuntu.com/p/X2By4q8kD2/
>> >> >> >
>> >> >> > Could you paste your config and the logs from a boot to?
>> >> >>
>> >> >> .config
>> >> >> https://paste.ubuntu.com/p/w9w2KB7RFc/
>> >> >>
>> >> >> dmesg
>> >> >> https://paste.ubuntu.com/p/mrZGk5bWRR/
>> >> >
>> >> > This is kind of weird. Have you tested with a 4.17 kernel? We have
>> >> > runtime_pm changes lined up in next, so that might be a regression
>> >> > there, even though we tested it with Quentin at some point.
>> >>
>> >> This is 4.17-rc4 do you want to try it on 4.16 ?
>> >
>> > No, this is next-20180503. Please try with 4.17-rc4
>>
>> Couldn't find any different in behaviour [2]
>>
>> [2] https://paste.ubuntu.com/p/m3PGBwrv6W/
>
> It's hard to tell without the board, but have you looked at the return
> value of devm_clk_get in the pwrseq code?
>
> Enabling the clk ftrace events would also help.
>
The driver has one bug.
diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
index 2e6fb27..a66f40c 100644
--- a/drivers/rtc/rtc-sun6i.c
+++ b/drivers/rtc/rtc-sun6i.c
@@ -74,7 +74,7 @@
#define SUN6I_ALARM_CONFIG_WAKEUP BIT(0)
#define SUN6I_LOSC_OUT_GATING 0x0060
-#define SUN6I_LOSC_OUT_GATING_EN BIT(0)
+#define SUN6I_LOSC_OUT_GATING_EN 0
You need to pass bit_idx that is 0 and not BIT(0)
Michael
> Maxime
>
> --
> Maxime Ripard, Bootlin (formerly Free Electrons)
> Embedded Linux and Kernel engineering
> https://bootlin.com
--
| Michael Nazzareno Trimarchi Amarula Solutions BV |
| COO - Founder Cruquiuskade 47 |
| +31(0)851119172 Amsterdam 1018 AM NL |
| [`as] http://www.amarulasolutions.com |