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spi: cs42l43: Clean up of firmware node

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As we get a child node in the OF case, we should also clean up the
reference, add code to do so.

Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://msgid.link/r/20240202103430.951598-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax 2024-02-02 10:34:30 +00:00 committed by Mark Brown
parent e6c5812dc4
commit 1e942b5bb1
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GPG Key ID: 24D68B725D5487D0
1 changed files with 16 additions and 6 deletions
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22
drivers/spi/spi-cs42l43.c
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@ -202,6 +202,11 @@ static size_t cs42l43_spi_max_length(struct spi_device *spi)
return CS42L43_SPI_MAX_LENGTH;
}
static void cs42l43_release_of_node(void *data)
{
fwnode_handle_put(data);
}
static int cs42l43_spi_probe(struct platform_device *pdev)
{
struct cs42l43 *cs42l43 = dev_get_drvdata(pdev->dev.parent);
@ -228,12 +233,6 @@ static int cs42l43_spi_probe(struct platform_device *pdev)
priv->ctlr->transfer_one = cs42l43_transfer_one;
priv->ctlr->set_cs = cs42l43_set_cs;
priv->ctlr->max_transfer_size = cs42l43_spi_max_length;
if (is_of_node(fwnode))
fwnode = fwnode_get_named_child_node(fwnode, "spi");
device_set_node(&priv->ctlr->dev, fwnode);
priv->ctlr->mode_bits = SPI_3WIRE | SPI_MODE_X_MASK;
priv->ctlr->flags = SPI_CONTROLLER_HALF_DUPLEX;
priv->ctlr->bits_per_word_mask = SPI_BPW_MASK(8) | SPI_BPW_MASK(16) |
@ -257,6 +256,17 @@ static int cs42l43_spi_probe(struct platform_device *pdev)
regmap_write(priv->regmap, CS42L43_SPI_CONFIG3, 0);
regmap_write(priv->regmap, CS42L43_SPI_CONFIG4, CS42L43_SPI_STALL_ENA_MASK);
if (is_of_node(fwnode)) {
fwnode = fwnode_get_named_child_node(fwnode, "spi");
ret = devm_add_action(priv->dev, cs42l43_release_of_node, fwnode);
if (ret) {
fwnode_handle_put(fwnode);
return ret;
}
}
device_set_node(&priv->ctlr->dev, fwnode);
ret = devm_spi_register_controller(priv->dev, priv->ctlr);
if (ret) {
dev_err(priv->dev, "Failed to register SPI controller: %d\n", ret);