mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-24 11:25:43 +00:00
Code Issues Releases Wiki Activity

spi: xtensa-xtfpga: Switch to use devm_spi_alloc_master()

Browse source 
Switch to use devm_spi_alloc_master() to simpify error path.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Link: https://lore.kernel.org/r/20220920114448.2681053-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Yang Yingliang 2022-09-20 19:44:48 +08:00 committed by Mark Brown
parent 077dac343b
commit 478cc2fc3d
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 5 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
drivers/spi/spi-xtensa-xtfpga.c
View file

@ -83,7 +83,7 @@ static int xtfpga_spi_probe(struct platform_device *pdev)
int ret;
struct spi_master *master;
master = spi_alloc_master(&pdev->dev, sizeof(struct xtfpga_spi));
master = devm_spi_alloc_master(&pdev->dev, sizeof(struct xtfpga_spi));
if (!master)
return -ENOMEM;
@ -97,30 +97,24 @@ static int xtfpga_spi_probe(struct platform_device *pdev)
xspi->bitbang.chipselect = xtfpga_spi_chipselect;
xspi->bitbang.txrx_word[SPI_MODE_0] = xtfpga_spi_txrx_word;
xspi->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(xspi->regs)) {
ret = PTR_ERR(xspi->regs);
goto err;
}
if (IS_ERR(xspi->regs))
return PTR_ERR(xspi->regs);
xtfpga_spi_write32(xspi, XTFPGA_SPI_START, 0);
usleep_range(1000, 2000);
if (xtfpga_spi_read32(xspi, XTFPGA_SPI_BUSY)) {
dev_err(&pdev->dev, "Device stuck in busy state\n");
ret = -EBUSY;
goto err;
return -EBUSY;
}
ret = spi_bitbang_start(&xspi->bitbang);
if (ret < 0) {
dev_err(&pdev->dev, "spi_bitbang_start failed\n");
goto err;
return ret;
}
platform_set_drvdata(pdev, master);
return 0;
err:
spi_master_put(master);
return ret;
}
static int xtfpga_spi_remove(struct platform_device *pdev)