From: Stefan Richter Date: Thu, 5 Jun 2008 18:49:38 +0000 (+0200) Subject: firewire: fw-ohci: disable PHY packet reception into AR context X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e896ec4302f45fdaf2fc78aec0093eca5478fe28;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git firewire: fw-ohci: disable PHY packet reception into AR context We want the rcvPhyPkt bit in LinkControl off before we start using the chip. However, the spec says that the reset value of it is undefined. Hence switch it explicitly off. https://bugzilla.redhat.com/show_bug.cgi?id=244576#c48 shows that for example the nForce2 integrated FireWire controller seems to have it on by default. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index b062e736b786..481d3f3e2ef7 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -1473,6 +1473,8 @@ static int ohci_enable(struct fw_card *card, u32 *config_rom, size_t length) reg_write(ohci, OHCI1394_HCControlClear, OHCI1394_HCControl_noByteSwapData); + reg_write(ohci, OHCI1394_LinkControlClear, + OHCI1394_LinkControl_rcvPhyPkt); reg_write(ohci, OHCI1394_LinkControlSet, OHCI1394_LinkControl_rcvSelfID | OHCI1394_LinkControl_cycleTimerEnable |