Commit a1f7c2ca authored by Daniel Golle's avatar Daniel Golle Committed by Kalle Valo

rt2800: remove errornous duplicate condition

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: 41977e86 ("rt2x00: add support for MT7620")
Reported-by: default avatarwbob <wbob@jify.de>
Reported-by: default avatarRoman Yeryomin <roman@advem.lv>
Signed-off-by: default avatarDaniel Golle <daniel@makrotopia.org>
Acked-by: default avatarStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent a3a03716
......@@ -5839,8 +5839,7 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
rt2800_register_write(rt2x00dev, TX_TXBF_CFG_0, 0x8000fc21);
rt2800_register_write(rt2x00dev, TX_TXBF_CFG_3, 0x00009c40);
} else if (rt2x00_rt(rt2x00dev, RT5390) ||
rt2x00_rt(rt2x00dev, RT5392) ||
rt2x00_rt(rt2x00dev, RT6352)) {
rt2x00_rt(rt2x00dev, RT5392)) {
rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000404);
rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x00080606);
rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000);
......@@ -5854,8 +5853,6 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000401);
rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x000C0000);
rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000);
rt2800_register_write(rt2x00dev, MIMO_PS_CFG, 0x00000002);
rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0x00150F0F);
rt2800_register_write(rt2x00dev, TX_ALC_VGA3, 0x00000000);
rt2800_register_write(rt2x00dev, TX0_BB_GAIN_ATTEN, 0x0);
rt2800_register_write(rt2x00dev, TX1_BB_GAIN_ATTEN, 0x0);
......
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