* Woodruff, Richard <r-woodruff2@xxxxxx> [170126 07:14]: > > From: Tony Lindgren [mailto:tony@xxxxxxxxxxx] > > Sent: Thursday, January 26, 2017 9:04 AM > > > Well we do have off mode during idle working for quite a few omap3 based > > boards just fine. And nothing prevents adding board specific > > Sure. > > > I recall playing with a SDIO WLAN card in MMC1 that I needed something > > like this to keep the card enabled during off mode as otherwise VMMC1 > > would get scaled down to 1.8V during idle. > > That seems very possible. As I recall there are 3 power provider groups P1/P2/P3 in that PMIC. Typically the processor is one, a modem is a two, and something like a wlan can be powered on 3. It depends on the board setup. > > When the processor signals an event to the PMIC it will run the script which then sends commands to each group. Some of the PMICs had a lot of programmable options and could get complex. PMICs typically mated with boards in the last few years tended to be a bit less flexible and they cost-removed the SRAM and just have fixed OTP. Looking at omap3_wrst_seq[], maybe adding just one of the following lines to does the trick for reboot: TWL_RESOURCE_RESET(RES_VMMC1), or TWL_RESOURCE_ON(RES_VMMC1), > Sorry about the badly formatted mail. It seems to get progressively worse. I should use a different account to post externally with. Yeah good idea. Otherwise you'll be forever known for bad formatting in the Linux history archives.. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
