* [PATCH] ARM: dts: bcm28155-ap: leave camldo1 on to fix reboot
@ 2014-03-12 13:14 Matt Porter
2014-03-12 13:16 ` Alex Elder
2014-03-14 16:55 ` Matt Porter
0 siblings, 2 replies; 3+ messages in thread
From: Matt Porter @ 2014-03-12 13:14 UTC (permalink / raw)
To: Alex Elder, Linux ARM Kernel List
Cc: Mark Brown, Christian Daudt, Devicetree List,
bcm-kernel-feedback-list-dY08KVG/lbpWk0Htik3J/w,
Linux Kernel Mailing List
The BCM28155-AP board has a bootloader that expects the camldo1
regulator to be enabled on entry. Currently, the camldo1 regulator
is disabled when no longer in use as is the case during a reboot /
warm reset. This causes the early bootloader to hang upon entry. Add
regulator-always-on to the camldo1 constraint to fix reboot.
Reported-by: Alex Elder <elder-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Signed-off-by: Matt Porter <mporter-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
[Depends on BCM59056 regulator series dts support:
http://www.gossamer-threads.com/lists/linux/kernel/1885489]
arch/arm/boot/dts/bcm28155-ap.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/bcm28155-ap.dts b/arch/arm/boot/dts/bcm28155-ap.dts
index 99ff0c1..cc1303c 100644
--- a/arch/arm/boot/dts/bcm28155-ap.dts
+++ b/arch/arm/boot/dts/bcm28155-ap.dts
@@ -94,6 +94,7 @@
camldo1_reg: camldo1 {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
+ regulator-always-on;
};
sdldo_reg: sdldo {
--
1.8.4
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] ARM: dts: bcm28155-ap: leave camldo1 on to fix reboot
2014-03-12 13:14 [PATCH] ARM: dts: bcm28155-ap: leave camldo1 on to fix reboot Matt Porter
@ 2014-03-12 13:16 ` Alex Elder
2014-03-14 16:55 ` Matt Porter
1 sibling, 0 replies; 3+ messages in thread
From: Alex Elder @ 2014-03-12 13:16 UTC (permalink / raw)
To: Matt Porter, Alex Elder, Linux ARM Kernel List
Cc: Mark Brown, Christian Daudt, Devicetree List,
bcm-kernel-feedback-list, Linux Kernel Mailing List
On 03/12/2014 08:14 AM, Matt Porter wrote:
> The BCM28155-AP board has a bootloader that expects the camldo1
> regulator to be enabled on entry. Currently, the camldo1 regulator
> is disabled when no longer in use as is the case during a reboot /
> warm reset. This causes the early bootloader to hang upon entry. Add
> regulator-always-on to the camldo1 constraint to fix reboot.
>
> Reported-by: Alex Elder <elder@linaro.org>
> Signed-off-by: Matt Porter <mporter@linaro.org>
Tested-by: Alex Elder <elder@linaro.org>
> ---
> [Depends on BCM59056 regulator series dts support:
> http://www.gossamer-threads.com/lists/linux/kernel/1885489]
>
> arch/arm/boot/dts/bcm28155-ap.dts | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/bcm28155-ap.dts b/arch/arm/boot/dts/bcm28155-ap.dts
> index 99ff0c1..cc1303c 100644
> --- a/arch/arm/boot/dts/bcm28155-ap.dts
> +++ b/arch/arm/boot/dts/bcm28155-ap.dts
> @@ -94,6 +94,7 @@
> camldo1_reg: camldo1 {
> regulator-min-microvolt = <3300000>;
> regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> };
>
> sdldo_reg: sdldo {
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] ARM: dts: bcm28155-ap: leave camldo1 on to fix reboot
2014-03-12 13:14 [PATCH] ARM: dts: bcm28155-ap: leave camldo1 on to fix reboot Matt Porter
2014-03-12 13:16 ` Alex Elder
@ 2014-03-14 16:55 ` Matt Porter
1 sibling, 0 replies; 3+ messages in thread
From: Matt Porter @ 2014-03-14 16:55 UTC (permalink / raw)
To: Alex Elder, Linux ARM Kernel List
Cc: Mark Brown, Christian Daudt, Devicetree List,
bcm-kernel-feedback-list, Linux Kernel Mailing List
On Wed, Mar 12, 2014 at 09:14:39AM -0400, Matt Porter wrote:
> The BCM28155-AP board has a bootloader that expects the camldo1
> regulator to be enabled on entry. Currently, the camldo1 regulator
> is disabled when no longer in use as is the case during a reboot /
> warm reset. This causes the early bootloader to hang upon entry. Add
> regulator-always-on to the camldo1 constraint to fix reboot.
>
> Reported-by: Alex Elder <elder@linaro.org>
> Signed-off-by: Matt Porter <mporter@linaro.org>
> ---
> [Depends on BCM59056 regulator series dts support:
> http://www.gossamer-threads.com/lists/linux/kernel/1885489]
Applied to mach-bcm armsoc/for-3.15/dt
-Matt
^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-03-12 13:14 [PATCH] ARM: dts: bcm28155-ap: leave camldo1 on to fix reboot Matt Porter
2014-03-12 13:16 ` Alex Elder
2014-03-14 16:55 ` Matt Porter
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