diff options
| author | Daniel Golle <daniel@makrotopia.org> | 2019-11-02 18:47:01 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-11-06 19:57:00 +0200 |
| commit | a1f7c2cabf701a17b1a05d6526bbdadc3d05e05c (patch) | |
| tree | 603ef1329234bee5dff15564beb68363beb274cf /drivers | |
| parent | a3a03716196fa32991ecda5667595f78c61cbd95 (diff) | |
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: 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: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c index 25466454b73e..a36c3fea7495 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c @@ -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); |