diff options
| author |   Baruch Siach <baruch@tkos.co.il> | 2013-12-30 20:30:44 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@linaro.org> | 2013-12-31 12:30:18 +0000 |
| commit | 04f421e7b0b10de3fae543dac4d324b449a1db6b (patch) | |
| tree | cdbb475e66a2ac6bc755d83f04eeabaf43569cbb /drivers/spi/spi-dw.c | |
| parent | spi: dw: drop unused struct dw_spi field (diff) | |
| download | linux-dev-04f421e7b0b10de3fae543dac4d324b449a1db6b.tar.xz linux-dev-04f421e7b0b10de3fae543dac4d324b449a1db6b.zip | |
spi: dw: use managed resources
Migrate mmio code and core driver to managed resources to reduce boilerplate
error handling code. Also, handle clk_enable() failure while at it, and drop
unused dw_spi iolen field.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-dw.c')
| -rw-r--r-- | drivers/spi/spi-dw.c | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index abf4fd5a2a25..48ec161d6eed 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -775,18 +775,16 @@ static void spi_hw_init(struct dw_spi *dws) } } -int dw_spi_add_host(struct dw_spi *dws) +int dw_spi_add_host(struct device *dev, struct dw_spi *dws) { struct spi_master *master; int ret; BUG_ON(dws == NULL); - master = spi_alloc_master(dws->parent_dev, 0); - if (!master) { - ret = -ENOMEM; - goto exit; - } + master = spi_alloc_master(dev, 0); + if (!master) + return -ENOMEM; dws->master = master; dws->type = SSI_MOTO_SPI; @@ -796,7 +794,7 @@ int dw_spi_add_host(struct dw_spi *dws) snprintf(dws->name, sizeof(dws->name), "dw_spi%d", dws->bus_num); - ret = request_irq(dws->irq, dw_spi_irq, IRQF_SHARED, + ret = devm_request_irq(dev, dws->irq, dw_spi_irq, IRQF_SHARED, dws->name, dws); if (ret < 0) { dev_err(&master->dev, "can not get IRQ\n"); @@ -835,7 +833,7 @@ int dw_spi_add_host(struct dw_spi *dws) } spi_master_set_devdata(master, dws); - ret = spi_register_master(master); + ret = devm_spi_register_master(dev, master); if (ret) { dev_err(&master->dev, "problem registering spi master\n"); goto err_queue_alloc; @@ -850,10 +848,8 @@ err_queue_alloc: dws->dma_ops->dma_exit(dws); err_diable_hw: spi_enable_chip(dws, 0); - free_irq(dws->irq, dws); err_free_master: spi_master_put(master); -exit: return ret; } EXPORT_SYMBOL_GPL(dw_spi_add_host); @@ -877,10 +873,6 @@ void dw_spi_remove_host(struct dw_spi *dws) spi_enable_chip(dws, 0); /* Disable clk */ spi_set_clk(dws, 0); - free_irq(dws->irq, dws); - - /* Disconnect from the SPI framework */ - spi_unregister_master(dws->master); } EXPORT_SYMBOL_GPL(dw_spi_remove_host); |