Thread (1 message) 1 message, 1 author, 2019-10-21

Re: [PATCH v2] rtl8xxxu: fix RTL8723BU connection failure issue after warm reboot

From: Kalle Valo <hidden>
Date: 2019-10-21 08:29:28
Also in: linux-wireless, lkml

Chris Chiu [off-list ref] writes:
On Thu, Oct 17, 2019 at 10:26 AM Chris Chiu [off-list ref] wrote:
quoted
On Wed, Oct 16, 2019 at 9:54 AM Chris Chiu [off-list ref] wrote:
quoted
The RTL8723BU has problems connecting to AP after each warm reboot.
Sometimes it returns no scan result, and in most cases, it fails
the authentication for unknown reason. However, it works totally
fine after cold reboot.

Compare the value of register SYS_CR and SYS_CLK_MAC_CLK_ENABLE
for cold reboot and warm reboot, the registers imply that the MAC
is already powered and thus some procedures are skipped during
driver initialization. Double checked the vendor driver, it reads
the SYS_CR and SYS_CLK_MAC_CLK_ENABLE also but doesn't skip any
during initialization based on them. This commit only tells the
RTL8723BU to do full initialization without checking MAC status.

Signed-off-by: Chris Chiu <redacted>
Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>

Sorry, I forgot to add Jes.

Chris
quoted
---

Note:
  v2: fix typo of commit message
Gentle ping. Cheers.
To reduce email please avoid pinging like this, it has been only five
days since you submitted this version and this is not a 24/7 service. I
have documented how you can follow the status from patchwork:

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches#checking_state_of_patches_from_patchwork

-- 
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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