From 9ab5071cd4a16001e4ba790172a7da5e4172462b Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Thu, 10 Jun 2010 08:26:48 +0200 Subject: firewire: add CSR CYCLE_TIME write support The specification requires that CYCLE_TIME is writable so that it can be initialized, so we better implement it. Signed-off-by: Clemens Ladisch --- drivers/firewire/core-transaction.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/firewire/core-transaction.c') diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c index 9a7d3ec23f2..e3925f67ec1 100644 --- a/drivers/firewire/core-transaction.c +++ b/drivers/firewire/core-transaction.c @@ -1097,6 +1097,9 @@ static void handle_registers(struct fw_card *card, struct fw_request *request, if (TCODE_IS_READ_REQUEST(tcode) && length == 4) *data = cpu_to_be32(card->driver-> read_csr_reg(card, CSR_CYCLE_TIME)); + else if (tcode == TCODE_WRITE_QUADLET_REQUEST) + card->driver->write_csr_reg(card, CSR_CYCLE_TIME, + be32_to_cpu(*data)); else rcode = RCODE_TYPE_ERROR; break; -- cgit v1.2.3