Bring MCU operations during device initialization to sync
with legacy driver.
This should fix following error:
phy0 -> rt2800pci_mcu_status: Error - MCU request failed,
no response from hardware
Signed-off-by: Jakub Kicinski <kubakici@xxxxx>
---
v3: move code from switch statement to appropriate function.
---
drivers/net/wireless/rt2x00/rt2800pci.c | 25 +++++++++++++++++--------
1 files changed, 17 insertions(+), 8 deletions(-)
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 891547c..ac874db 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -501,11 +501,27 @@ static int rt2800pci_init_registers(struct rt2x00_dev *rt2x00dev)
static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
{
+ int retval;
+
if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev) ||
rt2800pci_init_queues(rt2x00dev)))
return -EIO;
- return rt2800_enable_radio(rt2x00dev);
+ retval = rt2800_enable_radio(rt2x00dev);
+ if (retval)
+ return retval;
+
+ /* After resume MCU_BOOT_SIGNAL will trash these. */
+ rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
+ rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
+
+ rt2800_mcu_request(rt2x00dev, MCU_SLEEP, TOKEN_RADIO_OFF, 0xff, 0x02);
+ rt2800pci_mcu_status(rt2x00dev, TOKEN_RADIO_OFF);
+
+ rt2800_mcu_request(rt2x00dev, MCU_WAKEUP, TOKEN_WAKEUP, 0, 0);
+ rt2800pci_mcu_status(rt2x00dev, TOKEN_WAKEUP);
+
+ return retval;
}
static void rt2800pci_disable_radio(struct rt2x00_dev *rt2x00dev)
@@ -543,13 +559,6 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
switch (state) {
case STATE_RADIO_ON:
- /*
- * Before the radio can be enabled, the device first has
- * to be woken up. After that it needs a bit of time
- * to be fully awake and then the radio can be enabled.
- */
- rt2800pci_set_state(rt2x00dev, STATE_AWAKE);
- msleep(1);
retval = rt2800pci_enable_radio(rt2x00dev);
break;
case STATE_RADIO_OFF:
--
1.7.7.6
--
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