Hi, * Arthur Demchenkov <spinal.by@xxxxxxxxx> [190121 03:22]: > Wrong polarity of card detect GPIO pin leads to the system not > booting from external mmc, if the back cover of N900 is closed. > When the cover is open the system boots fine. > > This wasn't noticed before, because of a bug, which was fixed > by commit e63201f19 (mmc: omap_hsmmc: Delete platform data GPIO > CD and WP). Aaro, does this work for your test case too? > Kernels up to 4.19 ignored the card detect GPIO from DT. Hmm so should this have a Fixes tag or not? Regards, Tony > arch/arm/boot/dts/omap3-n900.dts | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts > index 182a53991c90..826920e6b878 100644 > --- a/arch/arm/boot/dts/omap3-n900.dts > +++ b/arch/arm/boot/dts/omap3-n900.dts > @@ -814,7 +814,7 @@ > /* For debugging, it is often good idea to remove this GPIO. > It means you can remove back cover (to reboot by removing > battery) and still use the MMC card. */ > - cd-gpios = <&gpio6 0 GPIO_ACTIVE_HIGH>; /* 160 */ > + cd-gpios = <&gpio6 0 GPIO_ACTIVE_LOW>; /* 160 */ > }; > > /* most boards use vaux3, only some old versions use vmmc2 instead */ > -- > 2.11.0 >
