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spi: mt65xx: Simplify probe function with dev_err_probe()

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Switch to dev_err_probe() to remove all dev_err() -> return repeated
patterns, simplifying and shortening the probe function.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220407114428.167091-7-angelogioacchino.delregno@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
AngeloGioacchino Del Regno 2022-04-07 13:44:26 +02:00 committed by Mark Brown
parent 5088b31364
commit 20cdbb8009
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 29 additions and 57 deletions
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86
drivers/spi/spi-mt65xx.c
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@ -1088,10 +1088,8 @@ static int mtk_spi_probe(struct platform_device *pdev)
int i, irq, ret, addr_bits;
master = devm_spi_alloc_master(dev, sizeof(*mdata));
if (!master) {
dev_err(dev, "failed to alloc spi master\n");
return -ENOMEM;
}
if (!master)
return dev_err_probe(dev, -ENOMEM, "failed to alloc spi master\n");
master->auto_runtime_pm = true;
master->dev.of_node = dev->of_node;
@ -1125,11 +1123,9 @@ static int mtk_spi_probe(struct platform_device *pdev)
if (mdata->dev_comp->need_pad_sel) {
mdata->pad_num = of_property_count_u32_elems(dev->of_node,
"mediatek,pad-select");
if (mdata->pad_num < 0) {
dev_err(dev,
if (mdata->pad_num < 0)
return dev_err_probe(dev, -EINVAL,
"No 'mediatek,pad-select' property\n");
return -EINVAL;
}
mdata->pad_sel = devm_kmalloc_array(dev, mdata->pad_num,
sizeof(u32), GFP_KERNEL);
@ -1140,11 +1136,10 @@ static int mtk_spi_probe(struct platform_device *pdev)
of_property_read_u32_index(dev->of_node,
"mediatek,pad-select",
i, &mdata->pad_sel[i]);
if (mdata->pad_sel[i] > MT8173_SPI_MAX_PAD_SEL) {
dev_err(dev, "wrong pad-sel[%d]: %u\n",
i, mdata->pad_sel[i]);
return -EINVAL;
}
if (mdata->pad_sel[i] > MT8173_SPI_MAX_PAD_SEL)
return dev_err_probe(dev, -EINVAL,
"wrong pad-sel[%d]: %u\n",
i, mdata->pad_sel[i]);
}
}
@ -1162,56 +1157,38 @@ static int mtk_spi_probe(struct platform_device *pdev)
ret = devm_request_irq(dev, irq, mtk_spi_interrupt,
IRQF_TRIGGER_NONE, dev_name(dev), master);
if (ret) {
dev_err(dev, "failed to register irq (%d)\n", ret);
return ret;
}
if (ret)
return dev_err_probe(dev, ret, "failed to register irq\n");
mdata->parent_clk = devm_clk_get(dev, "parent-clk");
if (IS_ERR(mdata->parent_clk)) {
ret = PTR_ERR(mdata->parent_clk);
dev_err(dev, "failed to get parent-clk: %d\n", ret);
return ret;
}
if (IS_ERR(mdata->parent_clk))
return dev_err_probe(dev, PTR_ERR(mdata->parent_clk),
"failed to get parent-clk\n");
mdata->sel_clk = devm_clk_get(dev, "sel-clk");
if (IS_ERR(mdata->sel_clk)) {
ret = PTR_ERR(mdata->sel_clk);
dev_err(dev, "failed to get sel-clk: %d\n", ret);
return ret;
}
if (IS_ERR(mdata->sel_clk))
return dev_err_probe(dev, PTR_ERR(mdata->sel_clk), "failed to get sel-clk\n");
mdata->spi_clk = devm_clk_get(dev, "spi-clk");
if (IS_ERR(mdata->spi_clk)) {
ret = PTR_ERR(mdata->spi_clk);
dev_err(dev, "failed to get spi-clk: %d\n", ret);
return ret;
}
if (IS_ERR(mdata->spi_clk))
return dev_err_probe(dev, PTR_ERR(mdata->spi_clk), "failed to get spi-clk\n");
mdata->spi_hclk = devm_clk_get_optional(dev, "hclk");
if (IS_ERR(mdata->spi_hclk)) {
ret = PTR_ERR(mdata->spi_hclk);
dev_err(dev, "failed to get hclk: %d\n", ret);
return ret;
}
if (IS_ERR(mdata->spi_hclk))
return dev_err_probe(dev, PTR_ERR(mdata->spi_hclk), "failed to get hclk\n");
ret = clk_set_parent(mdata->sel_clk, mdata->parent_clk);
if (ret < 0) {
dev_err(dev, "failed to clk_set_parent (%d)\n", ret);
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "failed to clk_set_parent\n");
ret = clk_prepare_enable(mdata->spi_hclk);
if (ret < 0) {
dev_err(dev, "failed to enable hclk (%d)\n", ret);
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "failed to enable hclk\n");
ret = clk_prepare_enable(mdata->spi_clk);
if (ret < 0) {
dev_err(dev, "failed to enable spi_clk (%d)\n", ret);
clk_disable_unprepare(mdata->spi_hclk);
return ret;
return dev_err_probe(dev, ret, "failed to enable spi_clk\n");
}
mdata->spi_clk_hz = clk_get_rate(mdata->spi_clk);
@ -1225,18 +1202,14 @@ static int mtk_spi_probe(struct platform_device *pdev)
}
if (mdata->dev_comp->need_pad_sel) {
if (mdata->pad_num != master->num_chipselect) {
dev_err(dev,
if (mdata->pad_num != master->num_chipselect)
return dev_err_probe(dev, -EINVAL,
"pad_num does not match num_chipselect(%d != %d)\n",
mdata->pad_num, master->num_chipselect);
return -EINVAL;
}
if (!master->cs_gpiods && master->num_chipselect > 1) {
dev_err(dev,
if (!master->cs_gpiods && master->num_chipselect > 1)
return dev_err_probe(dev, -EINVAL,
"cs_gpios not specified and num_chipselect > 1\n");
return -EINVAL;
}
}
if (mdata->dev_comp->dma_ext)
@ -1253,8 +1226,7 @@ static int mtk_spi_probe(struct platform_device *pdev)
ret = devm_spi_register_master(dev, master);
if (ret) {
pm_runtime_disable(dev);
dev_err(dev, "failed to register master (%d)\n", ret);
return ret;
return dev_err_probe(dev, ret, "failed to register master\n");
}
return 0;