* John Faith <jfaith7@xxxxxxxxx> [100805 19:09]: > On Wed, Aug 4, 2010 at 11:54 PM, Tony Lindgren <tony@xxxxxxxxxxx> wrote: > > * John Faith <jfaith7@xxxxxxxxx> [100804 22:22]: > >> Hi, > >> I'm trying to set mux modes for a 3530, package CBC in my board.c > >> (2.6.32 kernel) using an omap_board_mux entry: > >> OMAP3_MUX(GPMC_WAIT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT), > >> > >> , but sysfs reports mode4: > >> # grep WAIT1 /sys/kernel/debug/omap_mux/board > >> OMAP3_MUX(GPMC_WAIT1, OMAP_PIN_INPUT | OMAP_MUX_MODE4), > >> > >> I tried adding to bootargs "omap_mux=gpmc_wait1.gpmc_wait1=0x100", but > >> still got MODE4. Doing "echo 0x100 > > >> /sys/kernel/debug/omap_mux/gpmc_wait1" gave me MODE0, but I'd prefer > >> to init pins in board.c. I've also noticed for pin SDMMC2_DAT3 that > >> my OMAP3_MUX() entry specifies MODE1, but sysfs shows MODE4; it > >> changed to MODE1 after adding: > >> omap_mux_init_signal("mcspi3_cs0", OMAP_PIN_OUTPUT); > >> > >> Is just having the mode in omap_board_mux entries sufficient? > > > > Hmm that should be enough. Does dmesg | grep -i mux show any errors? > > > > You do have CONFIG_OMAP_MUX set, right? Otherwise omap_mux_init_signals > > does not do anything, and the mux code just builds a list of GPIO > > pins for PM runtime muxing (not implemented yet). > > Hi, > Yes, CONFIG_OMAP_MUX is set. The only non-wait1 error I saw was: > mux: Multiple signal paths (3) for mcspi3_cs0 > > With CONFIG_OMAP_MUX_DEBUG I now see that after mode0 is set, later > it's set to mode4: > # dmesg | grep -i wait1 > mux: Setting signal gpmc_wait1.gpmc_wait1 0x0100 -> 0x0100 > mux: Setting signal gpmc_wait1.gpio63 0x0100 -> 0x0104 > > The same pin was enabled for a different config, fixed with an ifdef. OK, good to hear. 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