mac80211: rt2x00: remove errornous duplicate condition

https://patchwork.kernel.org/patch/11224189/
--
On 2019-10-28 06:07, wbob wrote:
> Hello Roman,
>
> while reading around drivers/net/wireless/ralink/rt2x00/rt2800lib.c
> I stumbled on what I think is an edit of yours made in error in march
> 2017:
>
> https://github.com/torvalds/linux/commit/41977e86#diff-dae5dc10da180f3b055809a48118e18aR5281
>
> RT6352 in line 5281 should not have been introduced as the "else if"
> below line 5291 can then not take effect for a RT6352 device. Another
> possibility is for line 5291 to be not for RT6352, but this seems
> very unlikely. Are you able to clarify still after this substantial time?
>
> 5277: static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
> ...
> 5279:  } else if (rt2x00_rt(rt2x00dev, RT5390) ||
> 5280:         rt2x00_rt(rt2x00dev, RT5392) ||
> 5281:         rt2x00_rt(rt2x00dev, RT6352)) {
> ...
> 5291:  } else if (rt2x00_rt(rt2x00dev, RT6352)) {
> ...

Hence remove errornous line 5281 to make the driver actually
execute the correct initialization routine for MT7620 chips.

As it was requested by Stanislaw Gruszka remove setting values of
MIMO_PS_CFG and TX_PIN_CFG. MIMO_PS_CFG is responsible for MIMO
power-safe mode (which is disabled), hence we can drop setting it.
TX_PIN_CFG is set correctly in other functions, and as setting this
value breaks some devices, rather don't set it here during init, but
only modify it later on.

Fixes: 41977e86c984 ("rt2x00: add support for MT7620")
Reported-by: wbob <wbob@jify.de>
Reported-by: Roman Yeryomin <roman@advem.lv>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
--

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

package/kernel/mac80211/patches/rt2x00/983-rt2x00-add-r-calibration.patch

@@ -1,6 +1,6 @@
 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
-@@ -8477,6 +8477,160 @@ void rt2800_rf_self_txdc_cal(struct rt2x
+@@ -8474,6 +8474,160 @@ void rt2800_rf_self_txdc_cal(struct rt2x
  }
  EXPORT_SYMBOL_GPL(rt2800_rf_self_txdc_cal);
  
@@ -161,7 +161,7 @@
  static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev,
  				       bool set_bw, bool is_ht40)
  {
-@@ -9084,6 +9238,7 @@ static void rt2800_init_rfcsr_6352(struc
+@@ -9081,6 +9235,7 @@ static void rt2800_init_rfcsr_6352(struc
  	rt2800_rfcsr_write_dccal(rt2x00dev, 5, 0x00);
  	rt2800_rfcsr_write_dccal(rt2x00dev, 17, 0x7C);