static int dw_probe(struct platform_device *pdev)
{
+ const struct dw_dma_chip_pdata *match;
+ struct dw_dma_chip_pdata *data;
struct dw_dma_chip *chip;
struct device *dev = &pdev->dev;
struct resource *mem;
const struct dw_dma_platform_data *pdata;
int err;
+ match = device_get_match_data(dev);
+ if (!match)
+ return -ENODEV;
+
+ data = devm_kmemdup(&pdev->dev, match, sizeof(*match), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->id = pdev->id;
chip->pdata = pdata;
+ data->chip = chip;
+
chip->clk = devm_clk_get(chip->dev, "hclk");
if (IS_ERR(chip->clk))
return PTR_ERR(chip->clk);
pm_runtime_enable(&pdev->dev);
- err = dw_dma_probe(chip);
+ err = data->probe(chip);
if (err)
goto err_dw_dma_probe;
- platform_set_drvdata(pdev, chip);
+ platform_set_drvdata(pdev, data);
if (pdev->dev.of_node) {
err = of_dma_controller_register(pdev->dev.of_node,
static int dw_remove(struct platform_device *pdev)
{
- struct dw_dma_chip *chip = platform_get_drvdata(pdev);
+ struct dw_dma_chip_pdata *data = platform_get_drvdata(pdev);
+ struct dw_dma_chip *chip = data->chip;
+ int ret;
if (pdev->dev.of_node)
of_dma_controller_free(pdev->dev.of_node);
- dw_dma_remove(chip);
+ ret = data->remove(chip);
+ if (ret)
+ dev_warn(chip->dev, "can't remove device properly: %d\n", ret);
+
pm_runtime_disable(&pdev->dev);
clk_disable_unprepare(chip->clk);
static void dw_shutdown(struct platform_device *pdev)
{
- struct dw_dma_chip *chip = platform_get_drvdata(pdev);
+ struct dw_dma_chip_pdata *data = platform_get_drvdata(pdev);
+ struct dw_dma_chip *chip = data->chip;
/*
* We have to call do_dw_dma_disable() to stop any ongoing transfer. On
#ifdef CONFIG_OF
static const struct of_device_id dw_dma_of_id_table[] = {
- { .compatible = "snps,dma-spear1340" },
+ { .compatible = "snps,dma-spear1340", .data = &dw_dma_chip_pdata },
{}
};
MODULE_DEVICE_TABLE(of, dw_dma_of_id_table);
#ifdef CONFIG_ACPI
static const struct acpi_device_id dw_dma_acpi_id_table[] = {
- { "INTL9C60", 0 },
- { "80862286", 0 },
- { "808622C0", 0 },
+ { "INTL9C60", (kernel_ulong_t)&dw_dma_chip_pdata },
+ { "80862286", (kernel_ulong_t)&dw_dma_chip_pdata },
+ { "808622C0", (kernel_ulong_t)&dw_dma_chip_pdata },
{ }
};
MODULE_DEVICE_TABLE(acpi, dw_dma_acpi_id_table);
static int dw_suspend_late(struct device *dev)
{
- struct dw_dma_chip *chip = dev_get_drvdata(dev);
+ struct dw_dma_chip_pdata *data = dev_get_drvdata(dev);
+ struct dw_dma_chip *chip = data->chip;
do_dw_dma_disable(chip);
clk_disable_unprepare(chip->clk);
static int dw_resume_early(struct device *dev)
{
- struct dw_dma_chip *chip = dev_get_drvdata(dev);
+ struct dw_dma_chip_pdata *data = dev_get_drvdata(dev);
+ struct dw_dma_chip *chip = data->chip;
int ret;
ret = clk_prepare_enable(chip->clk);