diff options
Diffstat (limited to 'drivers/iio/dac/ltc2688.c')
| -rw-r--r-- | drivers/iio/dac/ltc2688.c | 28 |
1 files changed, 8 insertions, 20 deletions
diff --git a/drivers/iio/dac/ltc2688.c b/drivers/iio/dac/ltc2688.c index fc8eb53c65..c4b1ba30f9 100644 --- a/drivers/iio/dac/ltc2688.c +++ b/drivers/iio/dac/ltc2688.c @@ -746,26 +746,21 @@ static int ltc2688_span_lookup(const struct ltc2688_state *st, int min, int max) static int ltc2688_channel_config(struct ltc2688_state *st) { struct device *dev = &st->spi->dev; - struct fwnode_handle *child; u32 reg, clk_input, val, tmp[2]; int ret, span; - device_for_each_child_node(dev, child) { + device_for_each_child_node_scoped(dev, child) { struct ltc2688_chan *chan; ret = fwnode_property_read_u32(child, "reg", ®); - if (ret) { - fwnode_handle_put(child); + if (ret) return dev_err_probe(dev, ret, "Failed to get reg property\n"); - } - if (reg >= LTC2688_DAC_CHANNELS) { - fwnode_handle_put(child); + if (reg >= LTC2688_DAC_CHANNELS) return dev_err_probe(dev, -EINVAL, "reg bigger than: %d\n", LTC2688_DAC_CHANNELS); - } val = 0; chan = &st->channels[reg]; @@ -786,12 +781,10 @@ static int ltc2688_channel_config(struct ltc2688_state *st) if (!ret) { span = ltc2688_span_lookup(st, (int)tmp[0] / 1000, tmp[1] / 1000); - if (span < 0) { - fwnode_handle_put(child); - return dev_err_probe(dev, -EINVAL, + if (span < 0) + return dev_err_probe(dev, span, "output range not valid:[%d %d]\n", tmp[0], tmp[1]); - } val |= FIELD_PREP(LTC2688_CH_SPAN_MSK, span); } @@ -800,17 +793,14 @@ static int ltc2688_channel_config(struct ltc2688_state *st) &clk_input); if (!ret) { if (clk_input >= LTC2688_CH_TGP_MAX) { - fwnode_handle_put(child); return dev_err_probe(dev, -EINVAL, "toggle-dither-input inv value(%d)\n", clk_input); } ret = ltc2688_tgp_clk_setup(st, chan, child, clk_input); - if (ret) { - fwnode_handle_put(child); + if (ret) return ret; - } /* * 0 means software toggle which is the default mode. @@ -844,11 +834,9 @@ static int ltc2688_channel_config(struct ltc2688_state *st) ret = regmap_write(st->regmap, LTC2688_CMD_CH_SETTING(reg), val); - if (ret) { - fwnode_handle_put(child); - return dev_err_probe(dev, -EINVAL, + if (ret) + return dev_err_probe(dev, ret, "failed to set chan settings\n"); - } } return 0; |