Hi Stefan and thank you for looking into this,
On Sun, 27 Jan 2019, Stefan Wahren <stefan.wahren@xxxxxxxx> wrote:
Hi Ioan-Adrian,
Ioan-Adrian Ratiu <adi@xxxxxxxxxx> hat am 27. Januar 2019 um
21:28 geschrieben: This reverts commit
bea8a160c621d19f7f78b13e14e03f4b8e44cd4b. Contrary to what
the commit message says, on my rpi 3 b v1.2 changing the
polarity causes the exact behaviour this commit intends to fix,
as described at the referenced link below (wlan0 disapears).
With reset-gpios = ... GPIO_ACTIVE_HIGH, brcmfmac errors in
dmesg: [ 7.977512] brcmfmac: brcmf_sdio_bus_sleep: error
while changing bus sleep state -110 [ 7.977623] brcmfmac:
brcmf_sdio_txfail: sdio error, abort command and terminate
frame [ 7.978007] brcmfmac: brcmf_sdio_txfail: sdio error,
abort command and terminate frame [ 7.978377] brcmfmac:
brcmf_sdio_txfail: sdio error, abort command and terminate
frame [ 7.978724] brcmfmac: brcmf_sdio_dpc: failed backplane
access over SDIO, halting operation [ 7.978734] brcmfmac:
brcmf_proto_bcdc_query_dcmd: brcmf_proto_bcdc_msg failed
w/status -110 [ 7.978747] brcmfmac:
brcmf_cfg80211_get_channel: chanspec failed (-110) [
7.982817] brcmfmac: brcmf_sdio_bus_sleep: error while changing
bus sleep state -110 [ 7.982880] brcmfmac:
brcmf_sdio_txfail: sdio error, abort command and terminate
frame [ 7.983255] brcmfmac: brcmf_sdio_txfail: sdio error,
abort command and terminate frame The only solution I
currently have is to revert and everything works as expected
and as before changing the polarity. Link:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911443
Signed-off-by: Ioan-Adrian Ratiu <adi@xxxxxxxxxx> ---
reverting this commit will only workaround the real issue. It
lies in the sdhci-iproc driver.
Could please try this instead patch [1]?
Yes, the patch fixes the bug and it's also in Linus' master branch
in v5.0-rc3 as commit 2bd44da ("mmc: sdhci-iproc: handle
mmc_of_parse() errors during prob").
There was just a minor conflict cherry-picking it to 4.19.y
(sdhci_get_property -> sdhci_get_of_property).
I would really like to have 2bd44da backported to the 4.19 stable
tree to have wifi working again. Please?
Tested-by: Ioan-Adrian Ratiu <adi@xxxxxxxxxx> #4.19.18
[1] - https://patchwork.kernel.org/patch/10741809/
