Re: [PATCH] pinctrl: uniphier: drop meaningless pin from SD1 pin-mux of Pro4

2018-08-10 Thread Linus Walleij
On Tue, Aug 7, 2018 at 4:50 AM Masahiro Yamada wrote: > The pin 327 was supposed to be used as a voltage control line for the > SD card regulator, but the SD card port1 does not support UHS-I. It > only supports 3.3V signaling, hence this pin is pointless. > > Just a note about the background.

Re: [PATCH] pinctrl: uniphier: drop meaningless pin from SD1 pin-mux of Pro4

2018-08-10 Thread Linus Walleij
On Tue, Aug 7, 2018 at 4:50 AM Masahiro Yamada wrote: > The pin 327 was supposed to be used as a voltage control line for the > SD card regulator, but the SD card port1 does not support UHS-I. It > only supports 3.3V signaling, hence this pin is pointless. > > Just a note about the background.

[PATCH] pinctrl: uniphier: drop meaningless pin from SD1 pin-mux of Pro4

2018-08-06 Thread Masahiro Yamada
The pin 327 was supposed to be used as a voltage control line for the SD card regulator, but the SD card port1 does not support UHS-I. It only supports 3.3V signaling, hence this pin is pointless. Just a note about the background. At first, hardware engineers tried to implement the UHS for this

[PATCH] pinctrl: uniphier: drop meaningless pin from SD1 pin-mux of Pro4

2018-08-06 Thread Masahiro Yamada
The pin 327 was supposed to be used as a voltage control line for the SD card regulator, but the SD card port1 does not support UHS-I. It only supports 3.3V signaling, hence this pin is pointless. Just a note about the background. At first, hardware engineers tried to implement the UHS for this