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spi: spi-geni-qcom: Simplify probe function 

Re-arrange existing APIs in probe function to
avoid using goto and remove redundant variables.

Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Alok Chauhan 2018-10-25 22:10:29 +05:30 committed by Mark Brown
parent 0dccff3ce7
commit 6a34e285de
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 24 additions and 25 deletions
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49
drivers/spi/spi-geni-qcom.c
View File

@ -535,11 +535,30 @@ static irqreturn_t geni_spi_isr(int irq, void *data)
static int spi_geni_probe(struct platform_device *pdev)
{
int ret;
int ret, irq;
struct spi_master *spi;
struct spi_geni_master *mas;
struct resource *res;
struct geni_se *se;
void __iomem *base;
struct clk *clk;
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "Err getting IRQ %d\n", irq);
return irq;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(base))
return PTR_ERR(base);
clk = devm_clk_get(&pdev->dev, "se");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "Err getting SE Core clk %ld\n",
PTR_ERR(clk));
return PTR_ERR(clk);
}
spi = spi_alloc_master(&pdev->dev, sizeof(*mas));
if (!spi)
@ -547,27 +566,15 @@ static int spi_geni_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, spi);
mas = spi_master_get_devdata(spi);
mas->irq = irq;
mas->dev = &pdev->dev;
mas->se.dev = &pdev->dev;
mas->se.wrapper = dev_get_drvdata(pdev->dev.parent);
se = &mas->se;
mas->se.base = base;
mas->se.clk = clk;
spi->bus_num = -1;
spi->dev.of_node = pdev->dev.of_node;
mas->se.clk = devm_clk_get(&pdev->dev, "se");
if (IS_ERR(mas->se.clk)) {
ret = PTR_ERR(mas->se.clk);
dev_err(&pdev->dev, "Err getting SE Core clk %d\n", ret);
goto spi_geni_probe_err;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
se->base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(se->base)) {
ret = PTR_ERR(se->base);
goto spi_geni_probe_err;
}
spi->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LOOP | SPI_CS_HIGH;
spi->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32);
spi->num_chipselect = 4;
@ -586,13 +593,6 @@ static int spi_geni_probe(struct platform_device *pdev)
if (ret)
goto spi_geni_probe_runtime_disable;
mas->irq = platform_get_irq(pdev, 0);
if (mas->irq < 0) {
ret = mas->irq;
dev_err(&pdev->dev, "Err getting IRQ %d\n", ret);
goto spi_geni_probe_runtime_disable;
}
ret = request_irq(mas->irq, geni_spi_isr,
IRQF_TRIGGER_HIGH, "spi_geni", spi);
if (ret)
@ -607,7 +607,6 @@ static int spi_geni_probe(struct platform_device *pdev)
free_irq(mas->irq, spi);
spi_geni_probe_runtime_disable:
pm_runtime_disable(&pdev->dev);
spi_geni_probe_err:
spi_master_put(spi);
return ret;
}