Re: [RFT PATCH 3/3] ARM: dts: Mark SDIO as non-removable in exynos5250-snow-common
Hello Tomeu, On 10/15/2015 02:30 PM, Tomeu Vizoso wrote: > On 15 October 2015 at 12:55, Javier Martinez Canillas > wrote: >> The Exynos5250 Snow Chromebooks have a Marvell WiFi SDIO chip which >> can't neither be removed nor be detected. But the node isn't marked >> as non-removable and instead has the broken-cd DT property. >> >> This causes the device to be removed when the system enters into a >> suspend state and the following warnings is shown after a resume: >> >> [ 181.944636] mmc2: error -2 during resume (card was removed?) > > Hi Javier, > > isn't wifi on snow on mmc_3? > Sigh, you are correct. It seems I have a really bad day and missed. I got confused though because the node for mmc_0 (eMMC) in Snow also has a broken-cd property instead of non-removable. I'll add another patch to the series changing that. I also noticed that the mmc_0 (eMMC) node in Peach boards have both non-removable and broken-cd which doesn't make sense and the MMC DT binding is clear that the options are mutually exclusive. Seems to be copy & paste error from the vendor tree since the downstream DTS also have both properties in the nodes. So I'll also add patches to remove the broken-cd from these nodes. > With your patch, I don't see any change, but if I do it on mmc_3 > instead, the machine fails to resume. Will try to get more info. > Yes, I wouldn't expect any changes since the patch is marking the eMMC as non-removable but I wonder why is causing a fail to resume. Are you sure the system is resuming without $SUBJECT? You mentioned in IRC that S2R was broken for Snow in linux-next. > Regards, > > Tomeu > Best regards, -- Javier Martinez Canillas Open Source Group Samsung Research America -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [RFT PATCH 3/3] ARM: dts: Mark SDIO as non-removable in exynos5250-snow-common
On 15 October 2015 at 12:55, Javier Martinez Canillas
wrote:
> The Exynos5250 Snow Chromebooks have a Marvell WiFi SDIO chip which
> can't neither be removed nor be detected. But the node isn't marked
> as non-removable and instead has the broken-cd DT property.
>
> This causes the device to be removed when the system enters into a
> suspend state and the following warnings is shown after a resume:
>
> [ 181.944636] mmc2: error -2 during resume (card was removed?)
Hi Javier,
isn't wifi on snow on mmc_3?
With your patch, I don't see any change, but if I do it on mmc_3
instead, the machine fails to resume. Will try to get more info.
Regards,
Tomeu
> Signed-off-by: Javier Martinez Canillas
>
> ---
>
> arch/arm/boot/dts/exynos5250-snow-common.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/exynos5250-snow-common.dtsi
> b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
> index 0a7f408824d8..bf27957fd660 100644
> --- a/arch/arm/boot/dts/exynos5250-snow-common.dtsi
> +++ b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
> @@ -520,7 +520,7 @@
> &mmc_0 {
> status = "okay";
> num-slots = <1>;
> - broken-cd;
> + non-removable;
> card-detect-delay = <200>;
> samsung,dw-mshc-ciu-div = <3>;
> samsung,dw-mshc-sdr-timing = <2 3>;
> --
> 2.4.3
>
> --
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[RFT PATCH 3/3] ARM: dts: Mark SDIO as non-removable in exynos5250-snow-common
The Exynos5250 Snow Chromebooks have a Marvell WiFi SDIO chip which
can't neither be removed nor be detected. But the node isn't marked
as non-removable and instead has the broken-cd DT property.
This causes the device to be removed when the system enters into a
suspend state and the following warnings is shown after a resume:
[ 181.944636] mmc2: error -2 during resume (card was removed?)
Signed-off-by: Javier Martinez Canillas
---
arch/arm/boot/dts/exynos5250-snow-common.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/exynos5250-snow-common.dtsi
b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
index 0a7f408824d8..bf27957fd660 100644
--- a/arch/arm/boot/dts/exynos5250-snow-common.dtsi
+++ b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
@@ -520,7 +520,7 @@
&mmc_0 {
status = "okay";
num-slots = <1>;
- broken-cd;
+ non-removable;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <2 3>;
--
2.4.3
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