| Message ID | 20220715122903.332535-9-nuno.sa@analog.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | make iio inkern interface firmware agnostic | expand |
On Fri, 15 Jul 2022 14:28:56 +0200 Nuno Sá <nuno.sa@analog.com> wrote: > Make the conversion to firmware agnostic device properties. As part of > the conversion the IIO inkern interface 'of_xlate()' is also converted to > 'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF > dependencies from IIO. > > Signed-off-by: Nuno Sá <nuno.sa@analog.com> > Acked-by: Linus Walleij <linus.walleij@linaro.org> > Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Nitpick, but ideally this would have been two patches. 1) Drop parameter to *_parse_channels() 2) the rest. As that little corner was hardert o check than the rest :) meh. It's trivial as I said, otherwise looks good to me. Jonathan > --- > drivers/iio/adc/ab8500-gpadc.c | 27 ++++++++++++--------------- > 1 file changed, 12 insertions(+), 15 deletions(-) > > diff --git a/drivers/iio/adc/ab8500-gpadc.c b/drivers/iio/adc/ab8500-gpadc.c > index 930ce96e6ff5..4fa2126a354b 100644 > --- a/drivers/iio/adc/ab8500-gpadc.c > +++ b/drivers/iio/adc/ab8500-gpadc.c > @@ -925,8 +925,8 @@ static int ab8500_gpadc_read_raw(struct iio_dev *indio_dev, > return -EINVAL; > } > > -static int ab8500_gpadc_of_xlate(struct iio_dev *indio_dev, > - const struct of_phandle_args *iiospec) > +static int ab8500_gpadc_fwnode_xlate(struct iio_dev *indio_dev, > + const struct fwnode_reference_args *iiospec) > { > int i; > > @@ -938,7 +938,7 @@ static int ab8500_gpadc_of_xlate(struct iio_dev *indio_dev, > } > > static const struct iio_info ab8500_gpadc_info = { > - .of_xlate = ab8500_gpadc_of_xlate, > + .fwnode_xlate = ab8500_gpadc_fwnode_xlate, > .read_raw = ab8500_gpadc_read_raw, > }; > > @@ -968,7 +968,7 @@ static int ab8500_gpadc_runtime_resume(struct device *dev) > /** > * ab8500_gpadc_parse_channel() - process devicetree channel configuration > * @dev: pointer to containing device > - * @np: device tree node for the channel to configure > + * @fwnode: fw node for the channel to configure > * @ch: channel info to fill in > * @iio_chan: IIO channel specification to fill in > * > @@ -976,15 +976,15 @@ static int ab8500_gpadc_runtime_resume(struct device *dev) > * and define usage for things like AUX GPADC inputs more precisely. > */ > static int ab8500_gpadc_parse_channel(struct device *dev, > - struct device_node *np, > + struct fwnode_handle *fwnode, > struct ab8500_gpadc_chan_info *ch, > struct iio_chan_spec *iio_chan) > { > - const char *name = np->name; > + const char *name = fwnode_get_name(fwnode); > u32 chan; > int ret; > > - ret = of_property_read_u32(np, "reg", &chan); > + ret = fwnode_property_read_u32(fwnode, "reg", &chan); > if (ret) { > dev_err(dev, "invalid channel number %s\n", name); > return ret; > @@ -1021,22 +1021,20 @@ static int ab8500_gpadc_parse_channel(struct device *dev, > /** > * ab8500_gpadc_parse_channels() - Parse the GPADC channels from DT > * @gpadc: the GPADC to configure the channels for > - * @np: device tree node containing the channel configurations > * @chans: the IIO channels we parsed > * @nchans: the number of IIO channels we parsed > */ > static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc, > - struct device_node *np, > struct iio_chan_spec **chans_parsed, > unsigned int *nchans_parsed) > { > - struct device_node *child; > + struct fwnode_handle *child; > struct ab8500_gpadc_chan_info *ch; > struct iio_chan_spec *iio_chans; > unsigned int nchans; > int i; > > - nchans = of_get_available_child_count(np); > + nchans = device_get_child_node_count(gpadc->dev); > if (!nchans) { > dev_err(gpadc->dev, "no channel children\n"); > return -ENODEV; > @@ -1054,7 +1052,7 @@ static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc, > return -ENOMEM; > > i = 0; > - for_each_available_child_of_node(np, child) { > + device_for_each_child_node(gpadc->dev, child) { > struct iio_chan_spec *iio_chan; > int ret; > > @@ -1064,7 +1062,7 @@ static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc, > ret = ab8500_gpadc_parse_channel(gpadc->dev, child, ch, > iio_chan); > if (ret) { > - of_node_put(child); > + fwnode_handle_put(child); > return ret; > } > i++; > @@ -1081,7 +1079,6 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) > struct ab8500_gpadc *gpadc; > struct iio_dev *indio_dev; > struct device *dev = &pdev->dev; > - struct device_node *np = pdev->dev.of_node; > struct iio_chan_spec *iio_chans; > unsigned int n_iio_chans; > int ret; > @@ -1096,7 +1093,7 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) > gpadc->dev = dev; > gpadc->ab8500 = dev_get_drvdata(dev->parent); > > - ret = ab8500_gpadc_parse_channels(gpadc, np, &iio_chans, &n_iio_chans); > + ret = ab8500_gpadc_parse_channels(gpadc, &iio_chans, &n_iio_chans); > if (ret) > return ret; >
On Sat, 6 Aug 2022 19:03:37 +0100 Jonathan Cameron <jic23@kernel.org> wrote: > On Fri, 15 Jul 2022 14:28:56 +0200 > Nuno Sá <nuno.sa@analog.com> wrote: > > > Make the conversion to firmware agnostic device properties. As part of > > the conversion the IIO inkern interface 'of_xlate()' is also converted to > > 'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF > > dependencies from IIO. > > > > Signed-off-by: Nuno Sá <nuno.sa@analog.com> > > Acked-by: Linus Walleij <linus.walleij@linaro.org> > > Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> > Nitpick, but ideally this would have been two patches. > 1) Drop parameter to *_parse_channels() > 2) the rest. ignore that. I forgot there isn't a device_of_for_each_child_node(). So it would have been more effort than it was worth. > > As that little corner was hardert o check than the rest :) > > meh. It's trivial as I said, otherwise looks good to me. > > Jonathan > > > > --- > > drivers/iio/adc/ab8500-gpadc.c | 27 ++++++++++++--------------- > > 1 file changed, 12 insertions(+), 15 deletions(-) > > > > diff --git a/drivers/iio/adc/ab8500-gpadc.c b/drivers/iio/adc/ab8500-gpadc.c > > index 930ce96e6ff5..4fa2126a354b 100644 > > --- a/drivers/iio/adc/ab8500-gpadc.c > > +++ b/drivers/iio/adc/ab8500-gpadc.c > > @@ -925,8 +925,8 @@ static int ab8500_gpadc_read_raw(struct iio_dev *indio_dev, > > return -EINVAL; > > } > > > > -static int ab8500_gpadc_of_xlate(struct iio_dev *indio_dev, > > - const struct of_phandle_args *iiospec) > > +static int ab8500_gpadc_fwnode_xlate(struct iio_dev *indio_dev, > > + const struct fwnode_reference_args *iiospec) > > { > > int i; > > > > @@ -938,7 +938,7 @@ static int ab8500_gpadc_of_xlate(struct iio_dev *indio_dev, > > } > > > > static const struct iio_info ab8500_gpadc_info = { > > - .of_xlate = ab8500_gpadc_of_xlate, > > + .fwnode_xlate = ab8500_gpadc_fwnode_xlate, > > .read_raw = ab8500_gpadc_read_raw, > > }; > > > > @@ -968,7 +968,7 @@ static int ab8500_gpadc_runtime_resume(struct device *dev) > > /** > > * ab8500_gpadc_parse_channel() - process devicetree channel configuration > > * @dev: pointer to containing device > > - * @np: device tree node for the channel to configure > > + * @fwnode: fw node for the channel to configure > > * @ch: channel info to fill in > > * @iio_chan: IIO channel specification to fill in > > * > > @@ -976,15 +976,15 @@ static int ab8500_gpadc_runtime_resume(struct device *dev) > > * and define usage for things like AUX GPADC inputs more precisely. > > */ > > static int ab8500_gpadc_parse_channel(struct device *dev, > > - struct device_node *np, > > + struct fwnode_handle *fwnode, > > struct ab8500_gpadc_chan_info *ch, > > struct iio_chan_spec *iio_chan) > > { > > - const char *name = np->name; > > + const char *name = fwnode_get_name(fwnode); > > u32 chan; > > int ret; > > > > - ret = of_property_read_u32(np, "reg", &chan); > > + ret = fwnode_property_read_u32(fwnode, "reg", &chan); > > if (ret) { > > dev_err(dev, "invalid channel number %s\n", name); > > return ret; > > @@ -1021,22 +1021,20 @@ static int ab8500_gpadc_parse_channel(struct device *dev, > > /** > > * ab8500_gpadc_parse_channels() - Parse the GPADC channels from DT > > * @gpadc: the GPADC to configure the channels for > > - * @np: device tree node containing the channel configurations > > * @chans: the IIO channels we parsed > > * @nchans: the number of IIO channels we parsed > > */ > > static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc, > > - struct device_node *np, > > struct iio_chan_spec **chans_parsed, > > unsigned int *nchans_parsed) > > { > > - struct device_node *child; > > + struct fwnode_handle *child; > > struct ab8500_gpadc_chan_info *ch; > > struct iio_chan_spec *iio_chans; > > unsigned int nchans; > > int i; > > > > - nchans = of_get_available_child_count(np); > > + nchans = device_get_child_node_count(gpadc->dev); > > if (!nchans) { > > dev_err(gpadc->dev, "no channel children\n"); > > return -ENODEV; > > @@ -1054,7 +1052,7 @@ static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc, > > return -ENOMEM; > > > > i = 0; > > - for_each_available_child_of_node(np, child) { > > + device_for_each_child_node(gpadc->dev, child) { > > struct iio_chan_spec *iio_chan; > > int ret; > > > > @@ -1064,7 +1062,7 @@ static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc, > > ret = ab8500_gpadc_parse_channel(gpadc->dev, child, ch, > > iio_chan); > > if (ret) { > > - of_node_put(child); > > + fwnode_handle_put(child); > > return ret; > > } > > i++; > > @@ -1081,7 +1079,6 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) > > struct ab8500_gpadc *gpadc; > > struct iio_dev *indio_dev; > > struct device *dev = &pdev->dev; > > - struct device_node *np = pdev->dev.of_node; > > struct iio_chan_spec *iio_chans; > > unsigned int n_iio_chans; > > int ret; > > @@ -1096,7 +1093,7 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) > > gpadc->dev = dev; > > gpadc->ab8500 = dev_get_drvdata(dev->parent); > > > > - ret = ab8500_gpadc_parse_channels(gpadc, np, &iio_chans, &n_iio_chans); > > + ret = ab8500_gpadc_parse_channels(gpadc, &iio_chans, &n_iio_chans); > > if (ret) > > return ret; > > >
diff --git a/drivers/iio/adc/ab8500-gpadc.c b/drivers/iio/adc/ab8500-gpadc.c index 930ce96e6ff5..4fa2126a354b 100644 --- a/drivers/iio/adc/ab8500-gpadc.c +++ b/drivers/iio/adc/ab8500-gpadc.c @@ -925,8 +925,8 @@ static int ab8500_gpadc_read_raw(struct iio_dev *indio_dev, return -EINVAL; } -static int ab8500_gpadc_of_xlate(struct iio_dev *indio_dev, - const struct of_phandle_args *iiospec) +static int ab8500_gpadc_fwnode_xlate(struct iio_dev *indio_dev, + const struct fwnode_reference_args *iiospec) { int i; @@ -938,7 +938,7 @@ static int ab8500_gpadc_of_xlate(struct iio_dev *indio_dev, } static const struct iio_info ab8500_gpadc_info = { - .of_xlate = ab8500_gpadc_of_xlate, + .fwnode_xlate = ab8500_gpadc_fwnode_xlate, .read_raw = ab8500_gpadc_read_raw, }; @@ -968,7 +968,7 @@ static int ab8500_gpadc_runtime_resume(struct device *dev) /** * ab8500_gpadc_parse_channel() - process devicetree channel configuration * @dev: pointer to containing device - * @np: device tree node for the channel to configure + * @fwnode: fw node for the channel to configure * @ch: channel info to fill in * @iio_chan: IIO channel specification to fill in * @@ -976,15 +976,15 @@ static int ab8500_gpadc_runtime_resume(struct device *dev) * and define usage for things like AUX GPADC inputs more precisely. */ static int ab8500_gpadc_parse_channel(struct device *dev, - struct device_node *np, + struct fwnode_handle *fwnode, struct ab8500_gpadc_chan_info *ch, struct iio_chan_spec *iio_chan) { - const char *name = np->name; + const char *name = fwnode_get_name(fwnode); u32 chan; int ret; - ret = of_property_read_u32(np, "reg", &chan); + ret = fwnode_property_read_u32(fwnode, "reg", &chan); if (ret) { dev_err(dev, "invalid channel number %s\n", name); return ret; @@ -1021,22 +1021,20 @@ static int ab8500_gpadc_parse_channel(struct device *dev, /** * ab8500_gpadc_parse_channels() - Parse the GPADC channels from DT * @gpadc: the GPADC to configure the channels for - * @np: device tree node containing the channel configurations * @chans: the IIO channels we parsed * @nchans: the number of IIO channels we parsed */ static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc, - struct device_node *np, struct iio_chan_spec **chans_parsed, unsigned int *nchans_parsed) { - struct device_node *child; + struct fwnode_handle *child; struct ab8500_gpadc_chan_info *ch; struct iio_chan_spec *iio_chans; unsigned int nchans; int i; - nchans = of_get_available_child_count(np); + nchans = device_get_child_node_count(gpadc->dev); if (!nchans) { dev_err(gpadc->dev, "no channel children\n"); return -ENODEV; @@ -1054,7 +1052,7 @@ static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc, return -ENOMEM; i = 0; - for_each_available_child_of_node(np, child) { + device_for_each_child_node(gpadc->dev, child) { struct iio_chan_spec *iio_chan; int ret; @@ -1064,7 +1062,7 @@ static int ab8500_gpadc_parse_channels(struct ab8500_gpadc *gpadc, ret = ab8500_gpadc_parse_channel(gpadc->dev, child, ch, iio_chan); if (ret) { - of_node_put(child); + fwnode_handle_put(child); return ret; } i++; @@ -1081,7 +1079,6 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) struct ab8500_gpadc *gpadc; struct iio_dev *indio_dev; struct device *dev = &pdev->dev; - struct device_node *np = pdev->dev.of_node; struct iio_chan_spec *iio_chans; unsigned int n_iio_chans; int ret; @@ -1096,7 +1093,7 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) gpadc->dev = dev; gpadc->ab8500 = dev_get_drvdata(dev->parent); - ret = ab8500_gpadc_parse_channels(gpadc, np, &iio_chans, &n_iio_chans); + ret = ab8500_gpadc_parse_channels(gpadc, &iio_chans, &n_iio_chans); if (ret) return ret;