From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Ripard Subject: Re: [PATCH v3 16/30] iio: adc: sun4i-gpadc-iio: rework: readout temp_data Date: Fri, 31 Aug 2018 10:50:00 +0200 Message-ID: <20180831085000.xsqliawn7yl7l3ax@flea> References: <20180830154518.29507-1-embed3d@gmail.com> <20180830154518.29507-17-embed3d@gmail.com> Reply-To: maxime.ripard-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="jkngr6m62mzqnlxs" Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org Content-Disposition: inline In-Reply-To: <20180830154518.29507-17-embed3d-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: Philipp Rossak Cc: lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, wens-jdAy2FN1RRM@public.gmane.org, linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org, jic23-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, knaack.h-Mmb7MZpHnFY@public.gmane.org, lars-Qo5EllUWu/uELgA04lAiVw@public.gmane.org, pmeerw-jW+XmwGofnusTnJN9+BGXg@public.gmane.org, eugen.hristev-UWL1GkI3JZL3oGB3hsPCZA@public.gmane.org, rdunlap-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, vilhelm.gray-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, clabbe.montjoie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, quentin.schulz-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org, geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org, lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org, icenowy-h8G6r0blFSE@public.gmane.org, arnd-r2nGTMty4D4@public.gmane.org, broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, arnaud.pouliquen-qxv4g6HH51o@public.gmane.org, linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org List-Id: devicetree@vger.kernel.org --jkngr6m62mzqnlxs Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline On Thu, Aug 30, 2018 at 05:45:04PM +0200, Philipp Rossak wrote: > For adding newer sensor some basic rework of the code is necessary. > > This commit reworks the code and uses regmap field to read out > temp_data. > > Signed-off-by: Philipp Rossak > --- > drivers/iio/adc/sun4i-gpadc-iio.c | 21 +++++++++++++-------- > 1 file changed, 13 insertions(+), 8 deletions(-) > > diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c > index d48f338af563..c278e165e161 100644 > --- a/drivers/iio/adc/sun4i-gpadc-iio.c > +++ b/drivers/iio/adc/sun4i-gpadc-iio.c > @@ -63,6 +63,7 @@ struct gpadc_data { > int (*ths_suspend)(struct sun4i_gpadc_iio *info); > int (*ths_resume)(struct sun4i_gpadc_iio *info); > bool support_irq; > + u32 temp_data_base; > }; > > static irqreturn_t sun4i_gpadc_data_irq_handler(int irq, void *dev_id); > @@ -77,6 +78,7 @@ static const struct gpadc_data sun4i_gpadc_data = { > .adc_channel = true, > .ths_irq_thread = sun4i_gpadc_data_irq_handler, > .support_irq = true, > + .temp_data_base = SUN4I_GPADC_TEMP_DATA, > }; > > static const struct gpadc_data sun5i_gpadc_data = { > @@ -89,6 +91,7 @@ static const struct gpadc_data sun5i_gpadc_data = { > .adc_channel = true, > .ths_irq_thread = sun4i_gpadc_data_irq_handler, > .support_irq = true, > + .temp_data_base = SUN4I_GPADC_TEMP_DATA, > }; > > static const struct gpadc_data sun6i_gpadc_data = { > @@ -101,12 +104,14 @@ static const struct gpadc_data sun6i_gpadc_data = { > .adc_channel = true, > .ths_irq_thread = sun4i_gpadc_data_irq_handler, > .support_irq = true, > + .temp_data_base = SUN4I_GPADC_TEMP_DATA, > }; > > static const struct gpadc_data sun8i_a33_gpadc_data = { > .temp_offset = -1662, > .temp_scale = 162, > .tp_mode_en = SUN8I_A33_GPADC_CTRL1_CHOP_TEMP_EN, > + .temp_data_base = SUN4I_GPADC_TEMP_DATA, > }; > > struct sun4i_gpadc_iio { > @@ -271,18 +276,18 @@ static int sun4i_gpadc_temp_read(struct iio_dev *indio_dev, int *val) > { > struct sun4i_gpadc_iio *info = iio_priv(indio_dev); > > - if (!info->data->support_irq) { > - pm_runtime_get_sync(indio_dev->dev.parent); > + if (info->data->adc_channel) > + return sun4i_gpadc_read(indio_dev, 0, val, > + SUN4I_GPADC_IRQ_TEMP_DATA); > > - regmap_read(info->regmap, SUN4I_GPADC_TEMP_DATA, val); > + pm_runtime_get_sync(indio_dev->dev.parent); > > - pm_runtime_mark_last_busy(indio_dev->dev.parent); > - pm_runtime_put_autosuspend(indio_dev->dev.parent); > + regmap_read(info->regmap, info->data->temp_data_base, val); > > - return 0; > - } > + pm_runtime_mark_last_busy(indio_dev->dev.parent); > + pm_runtime_put_autosuspend(indio_dev->dev.parent); > > - return sun4i_gpadc_read(indio_dev, 0, val, SUN4I_GPADC_IRQ_TEMP_DATA); > + return 0; You should make this patch as small as possible. If you want to add a variable and to invert a condition, please make two patches. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com --jkngr6m62mzqnlxs--