Commit e18907cc authored Jun 13, 2012 by Clemens Ladisch Committed by Stefan Richter Jun 17, 2012

firewire: ohci: initialize multiChanMode bits after reset



OHCI 1.1 says:
| Since the value of this bit is undefined after reset in all IR
| contexts, software shall initialize this bit to zero in all contexts
| whether or not active to maintain the exclusive nature of this bit.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

parent 9d23f9e9

drivers/firewire/ohci.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -2279,6 +2279,11 @@ static int ohci_enable(struct fw_card *card,

		ohci->bus_time_running = false;

		for (i = 0; i < 32; i++)
		if (ohci->ir_context_support & (1 << i))
		reg_write(ohci, OHCI1394_IsoRcvContextControlClear(i),
		IR_CONTEXT_MULTI_CHANNEL_MODE);

		version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff;
		if (version >= OHCI_VERSION_1_1) {
		reg_write(ohci, OHCI1394_InitialChannelsAvailableHi,