From: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
To: Mark Brown <broonie@kernel.org>
Cc: lgirdwood@gmail.com, Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
MSM <linux-arm-msm@vger.kernel.org>,
lkml <linux-kernel@vger.kernel.org>,
devicetree@vger.kernel.org
Subject: Re: [PATCH v4 4/7] regulator: qcom_spmi: Add support for PM8005
Date: Mon, 17 Jun 2019 09:17:21 -0600 [thread overview]
Message-ID: <CAOCk7NrwYezbVyLKOZdxgGRVemKtBmHKP+fSO0a2p3bCPNdW3w@mail.gmail.com> (raw)
In-Reply-To: <20190617150502.GU5316@sirena.org.uk>
On Mon, Jun 17, 2019 at 9:05 AM Mark Brown <broonie@kernel.org> wrote:
>
> On Thu, Jun 13, 2019 at 02:25:53PM -0700, Jeffrey Hugo wrote:
>
> > +static int spmi_regulator_ftsmps426_set_voltage(struct regulator_dev *rdev,
> > + unsigned selector)
> > +{
> > + struct spmi_regulator *vreg = rdev_get_drvdata(rdev);
> > + u8 buf[2];
> > + int mV;
> > +
> > + mV = spmi_regulator_common_list_voltage(rdev, selector) / 1000;
> > +
> > + buf[0] = mV & 0xff;
> > + buf[1] = mV >> 8;
> > + return spmi_vreg_write(vreg, SPMI_FTSMPS426_REG_VOLTAGE_LSB, buf, 2);
> > +}
>
> This could just be a set_voltage_sel(), no need for it to be a
> set_voltage() operation....
This is a set_voltage_sel() in spmi_ftsmps426_ops. Is the issue because this
function is "spmi_regulator_ftsmps426_set_voltage" and not
"spmi_regulator_ftsmps426_set_voltage_sel"?
>
> > +static int spmi_regulator_ftsmps426_get_voltage(struct regulator_dev *rdev)
> > +{
> > + struct spmi_regulator *vreg = rdev_get_drvdata(rdev);
> > + u8 buf[2];
> > +
> > + spmi_vreg_read(vreg, SPMI_FTSMPS426_REG_VOLTAGE_LSB, buf, 2);
> > +
> > + return (((unsigned int)buf[1] << 8) | (unsigned int)buf[0]) * 1000;
> > +}
>
> ...or if the conversion is this trivial why do the list_voltage() lookup
> above?
We already have code in the driver to convert a selector to the
voltage. Why duplicate
that inline in spmi_regulator_ftsmps426_set_voltage?
>
> > +spmi_regulator_ftsmps426_set_mode(struct regulator_dev *rdev, unsigned int mode)
> > +{
> > + struct spmi_regulator *vreg = rdev_get_drvdata(rdev);
> > + u8 mask = SPMI_FTSMPS426_MODE_MASK;
> > + u8 val;
> > +
> > + switch (mode) {
> > + case REGULATOR_MODE_NORMAL:
> > + val = SPMI_FTSMPS426_MODE_HPM_MASK;
> > + break;
> > + case REGULATOR_MODE_FAST:
> > + val = SPMI_FTSMPS426_MODE_AUTO_MASK;
> > + break;
> > + default:
> > + val = SPMI_FTSMPS426_MODE_LPM_MASK;
> > + break;
> > + }
>
> This should validate, it shouldn't just translate invalid values into
> valid ones.
Validate what? The other defines are REGULATOR_MODE_IDLE
and REGULATOR_MODE_STANDBY which correspond to the LPM
mode. Or are you suggesting that regulator framework is going to pass
REGULATOR_MODE_INVALID to this operation?
next prev parent reply other threads:[~2019-06-17 15:17 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-13 21:24 [PATCH v4 0/7] PM8005 and PMS405 regulator support Jeffrey Hugo
2019-06-13 21:25 ` [PATCH v4 1/7] regulator: qcom_spmi: enable linear range info Jeffrey Hugo
2019-06-13 21:25 ` [PATCH v4 2/7] regulator: qcom_spmi: Refactor get_mode/set_mode Jeffrey Hugo
2019-06-13 21:32 ` Bjorn Andersson
2019-06-17 15:24 ` Applied "regulator: qcom_spmi: Refactor get_mode/set_mode" to the regulator tree Mark Brown
2019-06-17 15:24 ` Applied "regulator: qcom_spmi: enable linear range info" " Mark Brown
2019-06-13 21:25 ` [PATCH v4 3/7] dt-bindings: qcom_spmi: Document PM8005 regulators Jeffrey Hugo
2019-06-13 21:25 ` [PATCH v4 4/7] regulator: qcom_spmi: Add support for PM8005 Jeffrey Hugo
2019-06-17 15:05 ` Mark Brown
2019-06-17 15:17 ` Jeffrey Hugo [this message]
2019-06-17 16:03 ` Mark Brown
2019-06-17 17:07 ` Jeffrey Hugo
2019-06-17 18:37 ` Mark Brown
[not found] ` <CAOCk7NpbZwAreGpVCvF2yFBDJKbAxBZ23oncfF_SyEwoiC2+PQ@mail.gmail.com>
[not found] ` <20190617192413.GI5316@sirena.org.uk>
2019-06-17 19:41 ` Jeffrey Hugo
2019-06-13 21:26 ` [PATCH v4 5/7] arm64: dts: msm8998-mtp: Add pm8005_s1 regulator Jeffrey Hugo
2019-06-13 21:27 ` [PATCH v4 6/7] dt-bindings: qcom_spmi: Document pms405 support Jeffrey Hugo
2019-06-13 21:27 ` [PATCH v4 7/7] regulator: qcom_spmi: add PMS405 SPMI regulator Jeffrey Hugo
2019-06-13 21:37 ` Bjorn Andersson
2019-06-13 21:37 ` [PATCH v4 6/7] dt-bindings: qcom_spmi: Document pms405 support Bjorn Andersson
2019-06-17 14:58 ` [PATCH v4 0/7] PM8005 and PMS405 regulator support Mark Brown
2019-06-17 15:04 ` Jeffrey Hugo
2019-06-17 15:12 ` Mark Brown
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