From: Ivo van Doorn Date: Mon, 30 Aug 2010 19:13:54 +0000 (+0200) Subject: rt2x00: Wakeup hardware before loading firmware X-Git-Tag: firefly_0821_release~7613^2~3670^2~265^2^2~182 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b9eca24209a59ef0a8c3cbbbb94b8c76d4b3aae3;p=firefly-linux-kernel-4.4.55.git rt2x00: Wakeup hardware before loading firmware According to the legacy drivers the AUTOWAKEUP_CFG register must be reset to 0 before loading the firmware. Instead of during rt2800{pci,usb}_write_firmware it must actually be done in rt2800_load_firmware() before resetting the WPDMA_GLO_CFG and PWR_PIN_CFG registers. Signed-off-by: Ivo van Doorn Acked-by: Gertjan van Wingerde Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 1a8170068b1c..a5455f46cec1 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -384,6 +384,12 @@ int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev, unsigned int i; u32 reg; + /* + * If driver doesn't wake up firmware here, + * rt2800_load_firmware will hang forever when interface is up again. + */ + rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, 0x00000000); + /* * Wait for stable hardware. */ diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index 4d93204b221f..2bcb1507e3ac 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -196,8 +196,6 @@ static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev, { u32 reg; - rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, 0x00000000); - /* * enable Host program ram write selection */