From: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
To: Wren Turkal <wt@penguintechs.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
quic_zijuhu <quic_zijuhu@quicinc.com>,
luiz.von.dentz@intel.com, marcel@holtmann.org,
linux-bluetooth@vger.kernel.org, bartosz.golaszewski@linaro.org,
regressions@lists.linux.dev, kernel@quicinc.com
Subject: Re: [PATCH v6 1/2] Bluetooth: qca: Fix BT enable failure for QCA6390
Date: Wed, 24 Apr 2024 09:49:05 -0400 [thread overview]
Message-ID: <CABBYNZJLCPaLTaFEfeTEn+2FpxLS8Z-W2kT1ry4jKB_W=XYNjA@mail.gmail.com> (raw)
In-Reply-To: <2020a858-c3d9-48a7-ad59-3691c6b98fb2@penguintechs.org>
Hi Wren,
On Wed, Apr 24, 2024 at 1:04 AM Wren Turkal <wt@penguintechs.org> wrote:
>
> On 4/23/24 9:31 PM, Krzysztof Kozlowski wrote:
> > On 24/04/2024 06:18, quic_zijuhu wrote:
> >> On 4/24/2024 12:10 PM, Krzysztof Kozlowski wrote:
> >>> On 24/04/2024 06:07, quic_zijuhu wrote:
> >>>> On 4/24/2024 12:06 PM, Krzysztof Kozlowski wrote:
> >>>>> On 24/04/2024 02:46, Zijun Hu wrote:
> >>>>>> Commit 56d074d26c58 ("Bluetooth: hci_qca: don't use IS_ERR_OR_NULL()
> >>>>>> with gpiod_get_optional()") will cause below serious regression issue:
> >>>>>>
> >>>>>> BT can't be enabled any more after below steps:
> >>>>>> cold boot -> enable BT -> disable BT -> BT enable failure
> >>>>>> if property enable-gpios is not configured within DT|ACPI for QCA6390.
> >>>>>>
> >>>>>> The commit wrongly changes flag @power_ctrl_enabled set logic for this
> >>>>>> case as shown by its below code applet and causes this serious issue.
> >>>>>> qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
> >>>>>> GPIOD_OUT_LOW);
> >>>>>> - if (IS_ERR_OR_NULL(qcadev->bt_en)) {
> >>>>>> + if (IS_ERR(qcadev->bt_en)) {
> >>>>>> dev_warn(&serdev->dev, "failed to acquire enable gpio\n");
> >>>>>> power_ctrl_enabled = false;
> >>>>>> }
> >>>>>>
> >>>>>> Fixed by reverting the mentioned commit for QCA6390.
> >>>>>>
> >>>>>> Fixes: 56d074d26c58 ("Bluetooth: hci_qca: don't use IS_ERR_OR_NULL() with gpiod_get_optional()")
> >>>>>> Reported-by: Wren Turkal <wt@penguintechs.org>
> >>>>>> Link: https://bugzilla.kernel.org/show_bug.cgi?id=218726
> >>>>>> Link: https://lore.kernel.org/linux-bluetooth/ea20bb9b-6b60-47fc-ae42-5eed918ad7b4@quicinc.com/T/#m73d6a71d2f454bb03588c66f3ef7912274d37c6f
> >>>>>> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
> >>>>>> Tested-by: Wren Turkal <wt@penguintechs.org>
> >>>>>
> >>>>> No, Bartosz' patch should go.
> >>>>>
> >>>> what is Bartosz' patch.
> >>>
> >>> Srsly? You were Cc'ed on it. How many upstream patches on upstream
> >>> mailing lists do you receive that you lost track of them?
> >>>
> >> Bartosz' patch have basic serious mistook and logic error and have no
> >> any help for QCA6390, and it is not suitable regarding DTS usage.
> >
> > Really? Why you did not respond with comments then? Considering how
> > imprecise and vague you are in describing real issues, I have doubts in
> > your judgment here as well.
>
> Please slow down here. Zijun's patch works and Bartosz's patch does not.
> I don't think Zijun means any ill intent. I am replying to Bartosz's
> patch right now.
Ok, that is great feedback, so I might be picking up the Zijun v7 set
if we don't find any major problems with it.
> >
> > Best regards,
> > Krzysztof
> >
>
> --
> You're more amazing than you think!
--
Luiz Augusto von Dentz
next prev parent reply other threads:[~2024-04-24 13:49 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-24 0:46 [PATCH v6 0/2] Fix two BT regression issues for QCA6390 Zijun Hu
2024-04-24 0:46 ` [PATCH v6 1/2] Bluetooth: qca: Fix BT enable failure " Zijun Hu
2024-04-24 2:40 ` Fix two BT regression issues " bluez.test.bot
2024-04-24 3:21 ` [PATCH v6 1/2] Bluetooth: qca: Fix BT enable failure " Greg KH
2024-04-24 4:06 ` Krzysztof Kozlowski
2024-04-24 4:07 ` quic_zijuhu
2024-04-24 4:10 ` Krzysztof Kozlowski
2024-04-24 4:18 ` quic_zijuhu
2024-04-24 4:31 ` Krzysztof Kozlowski
2024-04-24 4:33 ` quic_zijuhu
2024-04-24 5:04 ` Wren Turkal
2024-04-24 5:33 ` quic_zijuhu
2024-04-24 13:56 ` Luiz Augusto von Dentz
2024-04-24 14:01 ` quic_zijuhu
2024-04-25 17:37 ` Elliot Berman
2024-04-26 2:45 ` quic_zijuhu
2024-04-24 13:49 ` Luiz Augusto von Dentz [this message]
2024-04-24 13:51 ` quic_zijuhu
2024-04-24 13:52 ` Bartosz Golaszewski
2024-04-24 13:53 ` quic_zijuhu
2024-04-24 14:00 ` Bartosz Golaszewski
2024-04-24 14:08 ` quic_zijuhu
2024-04-24 14:08 ` Luiz Augusto von Dentz
2024-04-24 14:12 ` quic_zijuhu
2024-04-24 14:19 ` Bartosz Golaszewski
2024-04-24 14:25 ` quic_zijuhu
2024-04-24 14:41 ` Bartosz Golaszewski
2024-04-24 14:44 ` Krzysztof Kozlowski
2024-04-24 14:46 ` quic_zijuhu
2024-04-24 15:31 ` Luiz Augusto von Dentz
2024-04-24 15:42 ` quic_zijuhu
2024-04-24 14:02 ` Luiz Augusto von Dentz
2024-04-24 0:46 ` [PATCH v6 2/2] Bluetooth: qca: Fix BT enable failure for QCA6390 after disable then warm reboot Zijun Hu
2024-04-24 3:22 ` Greg KH
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