| Message ID | 20201117140656.1235055-8-alexandre.belloni@bootlin.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | iio: adc: at91_adc: cleanup DT bindings | expand |
On Tue, 17 Nov 2020 15:06:52 +0100 Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > at91_adc_probe_dt is now small enough to be merged back in at91_adc_probe. > > Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> > Reviewed-by: Ludovic Desroches <ludovic.desroches@microchip.com> This proved a little more interesting to apply, but I think that is just down to Alexandru having already made the match_data related change. Please check I got it right! Thanks, Jonathan > --- > drivers/iio/adc/at91_adc.c | 117 ++++++++++++++++--------------------- > 1 file changed, 49 insertions(+), 68 deletions(-) > > diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c > index 83539422b704..347464844263 100644 > --- a/drivers/iio/adc/at91_adc.c > +++ b/drivers/iio/adc/at91_adc.c > @@ -833,70 +833,6 @@ static int at91_adc_probe_dt_ts(struct device_node *node, > } > } > > -static int at91_adc_probe_dt(struct iio_dev *idev, > - struct platform_device *pdev) > -{ > - struct at91_adc_state *st = iio_priv(idev); > - struct device_node *node = pdev->dev.of_node; > - int ret; > - u32 prop; > - char *s; > - > - st->caps = (struct at91_adc_caps *) > - of_match_device(at91_adc_dt_ids, &pdev->dev)->data; > - > - st->use_external = of_property_read_bool(node, "atmel,adc-use-external-triggers"); > - > - if (of_property_read_u32(node, "atmel,adc-channels-used", &prop)) { > - dev_err(&idev->dev, "Missing adc-channels-used property in the DT.\n"); > - ret = -EINVAL; > - goto error_ret; > - } > - st->channels_mask = prop; > - > - st->sleep_mode = of_property_read_bool(node, "atmel,adc-sleep-mode"); > - > - if (of_property_read_u32(node, "atmel,adc-startup-time", &prop)) { > - dev_err(&idev->dev, "Missing adc-startup-time property in the DT.\n"); > - ret = -EINVAL; > - goto error_ret; > - } > - st->startup_time = prop; > - > - prop = 0; > - of_property_read_u32(node, "atmel,adc-sample-hold-time", &prop); > - st->sample_hold_time = prop; > - > - if (of_property_read_u32(node, "atmel,adc-vref", &prop)) { > - dev_err(&idev->dev, "Missing adc-vref property in the DT.\n"); > - ret = -EINVAL; > - goto error_ret; > - } > - st->vref_mv = prop; > - > - st->res = st->caps->high_res_bits; > - if (st->caps->low_res_bits && > - !of_property_read_string(node, "atmel,adc-use-res", (const char **)&s) > - && !strcmp(s, "lowres")) > - st->res = st->caps->low_res_bits; > - > - dev_info(&idev->dev, "Resolution used: %u bits\n", st->res); > - > - st->registers = &st->caps->registers; > - st->num_channels = st->caps->num_channels; > - > - /* Check if touchscreen is supported. */ > - if (st->caps->has_ts) > - return at91_adc_probe_dt_ts(node, st, &idev->dev); > - else > - dev_info(&idev->dev, "not support touchscreen in the adc compatible string.\n"); > - > - return 0; > - > -error_ret: > - return ret; > -} > - > static const struct iio_info at91_adc_info = { > .read_raw = &at91_adc_read_raw, > }; > @@ -1062,10 +998,12 @@ static void at91_ts_unregister(struct at91_adc_state *st) > static int at91_adc_probe(struct platform_device *pdev) > { > unsigned int prsc, mstrclk, ticks, adc_clk, adc_clk_khz, shtim; > + struct device_node *node = pdev->dev.of_node; > int ret; > struct iio_dev *idev; > struct at91_adc_state *st; > - u32 reg; > + u32 reg, prop; > + char *s; > > idev = devm_iio_device_alloc(&pdev->dev, sizeof(struct at91_adc_state)); > if (!idev) > @@ -1073,9 +1011,52 @@ static int at91_adc_probe(struct platform_device *pdev) > > st = iio_priv(idev); > > - ret = at91_adc_probe_dt(idev, pdev); > - if (ret) > - return ret; > + st->caps = (struct at91_adc_caps *) > + of_match_device(at91_adc_dt_ids, &pdev->dev)->data; > + > + st->use_external = of_property_read_bool(node, "atmel,adc-use-external-triggers"); > + > + if (of_property_read_u32(node, "atmel,adc-channels-used", &prop)) { > + dev_err(&idev->dev, "Missing adc-channels-used property in the DT.\n"); > + return -EINVAL; > + } > + st->channels_mask = prop; > + > + st->sleep_mode = of_property_read_bool(node, "atmel,adc-sleep-mode"); > + > + if (of_property_read_u32(node, "atmel,adc-startup-time", &prop)) { > + dev_err(&idev->dev, "Missing adc-startup-time property in the DT.\n"); > + return -EINVAL; > + } > + st->startup_time = prop; > + > + prop = 0; > + of_property_read_u32(node, "atmel,adc-sample-hold-time", &prop); > + st->sample_hold_time = prop; > + > + if (of_property_read_u32(node, "atmel,adc-vref", &prop)) { > + dev_err(&idev->dev, "Missing adc-vref property in the DT.\n"); > + return -EINVAL; > + } > + st->vref_mv = prop; > + > + st->res = st->caps->high_res_bits; > + if (st->caps->low_res_bits && > + !of_property_read_string(node, "atmel,adc-use-res", (const char **)&s) > + && !strcmp(s, "lowres")) > + st->res = st->caps->low_res_bits; > + > + dev_info(&idev->dev, "Resolution used: %u bits\n", st->res); > + > + st->registers = &st->caps->registers; > + st->num_channels = st->caps->num_channels; > + > + /* Check if touchscreen is supported. */ > + if (st->caps->has_ts) { > + ret = at91_adc_probe_dt_ts(node, st, &idev->dev); > + if (ret) > + return ret; > + } > > platform_set_drvdata(pdev, idev); >
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index 83539422b704..347464844263 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -833,70 +833,6 @@ static int at91_adc_probe_dt_ts(struct device_node *node, } } -static int at91_adc_probe_dt(struct iio_dev *idev, - struct platform_device *pdev) -{ - struct at91_adc_state *st = iio_priv(idev); - struct device_node *node = pdev->dev.of_node; - int ret; - u32 prop; - char *s; - - st->caps = (struct at91_adc_caps *) - of_match_device(at91_adc_dt_ids, &pdev->dev)->data; - - st->use_external = of_property_read_bool(node, "atmel,adc-use-external-triggers"); - - if (of_property_read_u32(node, "atmel,adc-channels-used", &prop)) { - dev_err(&idev->dev, "Missing adc-channels-used property in the DT.\n"); - ret = -EINVAL; - goto error_ret; - } - st->channels_mask = prop; - - st->sleep_mode = of_property_read_bool(node, "atmel,adc-sleep-mode"); - - if (of_property_read_u32(node, "atmel,adc-startup-time", &prop)) { - dev_err(&idev->dev, "Missing adc-startup-time property in the DT.\n"); - ret = -EINVAL; - goto error_ret; - } - st->startup_time = prop; - - prop = 0; - of_property_read_u32(node, "atmel,adc-sample-hold-time", &prop); - st->sample_hold_time = prop; - - if (of_property_read_u32(node, "atmel,adc-vref", &prop)) { - dev_err(&idev->dev, "Missing adc-vref property in the DT.\n"); - ret = -EINVAL; - goto error_ret; - } - st->vref_mv = prop; - - st->res = st->caps->high_res_bits; - if (st->caps->low_res_bits && - !of_property_read_string(node, "atmel,adc-use-res", (const char **)&s) - && !strcmp(s, "lowres")) - st->res = st->caps->low_res_bits; - - dev_info(&idev->dev, "Resolution used: %u bits\n", st->res); - - st->registers = &st->caps->registers; - st->num_channels = st->caps->num_channels; - - /* Check if touchscreen is supported. */ - if (st->caps->has_ts) - return at91_adc_probe_dt_ts(node, st, &idev->dev); - else - dev_info(&idev->dev, "not support touchscreen in the adc compatible string.\n"); - - return 0; - -error_ret: - return ret; -} - static const struct iio_info at91_adc_info = { .read_raw = &at91_adc_read_raw, }; @@ -1062,10 +998,12 @@ static void at91_ts_unregister(struct at91_adc_state *st) static int at91_adc_probe(struct platform_device *pdev) { unsigned int prsc, mstrclk, ticks, adc_clk, adc_clk_khz, shtim; + struct device_node *node = pdev->dev.of_node; int ret; struct iio_dev *idev; struct at91_adc_state *st; - u32 reg; + u32 reg, prop; + char *s; idev = devm_iio_device_alloc(&pdev->dev, sizeof(struct at91_adc_state)); if (!idev) @@ -1073,9 +1011,52 @@ static int at91_adc_probe(struct platform_device *pdev) st = iio_priv(idev); - ret = at91_adc_probe_dt(idev, pdev); - if (ret) - return ret; + st->caps = (struct at91_adc_caps *) + of_match_device(at91_adc_dt_ids, &pdev->dev)->data; + + st->use_external = of_property_read_bool(node, "atmel,adc-use-external-triggers"); + + if (of_property_read_u32(node, "atmel,adc-channels-used", &prop)) { + dev_err(&idev->dev, "Missing adc-channels-used property in the DT.\n"); + return -EINVAL; + } + st->channels_mask = prop; + + st->sleep_mode = of_property_read_bool(node, "atmel,adc-sleep-mode"); + + if (of_property_read_u32(node, "atmel,adc-startup-time", &prop)) { + dev_err(&idev->dev, "Missing adc-startup-time property in the DT.\n"); + return -EINVAL; + } + st->startup_time = prop; + + prop = 0; + of_property_read_u32(node, "atmel,adc-sample-hold-time", &prop); + st->sample_hold_time = prop; + + if (of_property_read_u32(node, "atmel,adc-vref", &prop)) { + dev_err(&idev->dev, "Missing adc-vref property in the DT.\n"); + return -EINVAL; + } + st->vref_mv = prop; + + st->res = st->caps->high_res_bits; + if (st->caps->low_res_bits && + !of_property_read_string(node, "atmel,adc-use-res", (const char **)&s) + && !strcmp(s, "lowres")) + st->res = st->caps->low_res_bits; + + dev_info(&idev->dev, "Resolution used: %u bits\n", st->res); + + st->registers = &st->caps->registers; + st->num_channels = st->caps->num_channels; + + /* Check if touchscreen is supported. */ + if (st->caps->has_ts) { + ret = at91_adc_probe_dt_ts(node, st, &idev->dev); + if (ret) + return ret; + } platform_set_drvdata(pdev, idev);