diff options
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-pxa2xx-pci.c | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/drivers/spi/spi-pxa2xx-pci.c b/drivers/spi/spi-pxa2xx-pci.c index c041a9288d0c..2dbe08034ad0 100644 --- a/drivers/spi/spi-pxa2xx-pci.c +++ b/drivers/spi/spi-pxa2xx-pci.c @@ -65,6 +65,24 @@ static struct dw_dma_slave lpt1_rx_param = { .src_id = 1 }; static struct dw_dma_slave lpt0_tx_param = { .dst_id = 2 }; static struct dw_dma_slave lpt0_rx_param = { .src_id = 3 }; +static void pxa2xx_spi_pci_clk_unregister(void *clk) +{ + clk_unregister(clk); +} + +static int pxa2xx_spi_pci_clk_register(struct pci_dev *dev, struct ssp_device *ssp, + unsigned long rate) +{ + char buf[40]; + + snprintf(buf, sizeof(buf), "pxa2xx-spi.%d", ssp->port_id); + ssp->clk = clk_register_fixed_rate(&dev->dev, buf, NULL, 0, rate); + if (IS_ERR(ssp->clk)) + return PTR_ERR(ssp->clk); + + return devm_add_action_or_reset(&dev->dev, pxa2xx_spi_pci_clk_unregister, ssp->clk); +} + static bool lpss_dma_filter(struct dma_chan *chan, void *param) { struct dw_dma_slave *dws = param; @@ -246,7 +264,6 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev, struct pxa2xx_spi_controller spi_pdata; struct ssp_device *ssp; struct pxa_spi_info *c; - char buf[40]; ret = pcim_enable_device(dev); if (ret) @@ -283,11 +300,9 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev, return ret; ssp->irq = pci_irq_vector(dev, 0); - snprintf(buf, sizeof(buf), "pxa2xx-spi.%d", ssp->port_id); - ssp->clk = clk_register_fixed_rate(&dev->dev, buf, NULL, 0, - c->max_clk_rate); - if (IS_ERR(ssp->clk)) - return PTR_ERR(ssp->clk); + ret = pxa2xx_spi_pci_clk_register(dev, ssp, c->max_clk_rate); + if (ret) + return ret; memset(&pi, 0, sizeof(pi)); pi.fwnode = dev_fwnode(&dev->dev); @@ -298,10 +313,8 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev, pi.size_data = sizeof(spi_pdata); pdev = platform_device_register_full(&pi); - if (IS_ERR(pdev)) { - clk_unregister(ssp->clk); + if (IS_ERR(pdev)) return PTR_ERR(pdev); - } pci_set_drvdata(dev, pdev); @@ -311,12 +324,8 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev, static void pxa2xx_spi_pci_remove(struct pci_dev *dev) { struct platform_device *pdev = pci_get_drvdata(dev); - struct pxa2xx_spi_controller *spi_pdata; - - spi_pdata = dev_get_platdata(&pdev->dev); platform_device_unregister(pdev); - clk_unregister(spi_pdata->ssp.clk); } static const struct pci_device_id pxa2xx_spi_pci_devices[] = { |