From: Mark Brown <broonie@kernel.org>
To: Nisha Kumari <nishakumari@codeaurora.org>
Cc: bjorn.andersson@linaro.org, robh+dt@kernel.org,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
agross@kernel.org, lgirdwood@gmail.com, mark.rutland@arm.com,
david.brown@linaro.org, linux-kernel@vger.kernel.org,
kgunda@codeaurora.org, rnayak@codeaurora.org
Subject: Re: [PATCH 4/4] regulator: adding interrupt handling in labibb regulator
Date: Thu, 13 Jun 2019 18:27:38 +0100 [thread overview]
Message-ID: <20190613172738.GO5316@sirena.org.uk> (raw)
In-Reply-To: <1560337252-27193-5-git-send-email-nishakumari@codeaurora.org>
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On Wed, Jun 12, 2019 at 04:30:52PM +0530, Nisha Kumari wrote:
> +static void labibb_sc_err_recovery_work(void *_labibb)
> +{
> + int ret;
> + struct qcom_labibb *labibb = (struct qcom_labibb *)_labibb;
> +
> + labibb->ibb_vreg.vreg_enabled = 0;
> + labibb->lab_vreg.vreg_enabled = 0;
> +
> + ret = qcom_ibb_regulator_enable(labibb->lab_vreg.rdev);
The driver should *never* enable the regulator itself, it should only do
this if the core told it to.
> + /*
> + * The SC(short circuit) fault would trigger PBS(Portable Batch
> + * System) to disable regulators for protection. This would
> + * cause the SC_DETECT status being cleared so that it's not
> + * able to get the SC fault status.
> + * Check if LAB/IBB regulators are enabled in the driver but
> + * disabled in hardware, this means a SC fault had happened
> + * and SCP handling is completed by PBS.
> + */
Let the core worry about this, the driver should just report the problem
to the core like all other devices do (and this driver doesn't...).
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next prev parent reply other threads:[~2019-06-13 17:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-12 11:00 [PATCH 0/4] Add labibb regulator support for LCD display mode Nisha Kumari
2019-06-12 11:00 ` [PATCH 1/4] dt-bindings: regulator: Add labibb regulator Nisha Kumari
2019-06-13 16:05 ` Mark Brown
2019-06-13 16:28 ` Bjorn Andersson
2019-06-18 5:52 ` Nisha Kumari
2019-06-12 11:00 ` [PATCH 2/4] arm64: dts: qcom: pmi8998: Add nodes for LAB and IBB regulators Nisha Kumari
2019-06-12 11:00 ` [PATCH 3/4] regulator: Add labibb driver Nisha Kumari
2019-06-13 17:04 ` Bjorn Andersson
2019-06-18 6:13 ` Nisha Kumari
2019-06-13 17:25 ` Mark Brown
2019-06-18 6:21 ` Nisha Kumari
2019-06-18 10:59 ` Mark Brown
2019-06-12 11:00 ` [PATCH 4/4] regulator: adding interrupt handling in labibb regulator Nisha Kumari
2019-06-13 17:27 ` Mark Brown [this message]
2019-06-18 6:23 ` Nisha Kumari
2020-04-28 5:16 ` Sumit Semwal
2020-04-28 11:09 ` Mark Brown
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