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    Subject[PATCH v5 12/16] dmaengine: dw-axi-dmac: Add Intel KeemBay AxiDMA support
    Date
    Add support for Intel KeemBay AxiDMA to the .compatible field.
    The AxiDMA Apb region will be accessible if the compatible string
    matches the "intel,kmb-axi-dma".

    Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
    Signed-off-by: Sia Jee Heng <jee.heng.sia@intel.com>
    ---
    drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 8 ++++++++
    1 file changed, 8 insertions(+)

    diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
    index 29323e75bc44..8135b827b47a 100644
    --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
    +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
    @@ -1160,6 +1160,7 @@ static int parse_device_properties(struct axi_dma_chip *chip)

    static int dw_probe(struct platform_device *pdev)
    {
    + struct device_node *node = pdev->dev.of_node;
    struct axi_dma_chip *chip;
    struct resource *mem;
    struct dw_axi_dma *dw;
    @@ -1192,6 +1193,12 @@ static int dw_probe(struct platform_device *pdev)
    if (IS_ERR(chip->regs))
    return PTR_ERR(chip->regs);

    + if (of_device_is_compatible(node, "intel,kmb-axi-dma")) {
    + chip->apb_regs = devm_platform_ioremap_resource(pdev, 1);
    + if (IS_ERR(chip->apb_regs))
    + return PTR_ERR(chip->apb_regs);
    + }
    +
    chip->core_clk = devm_clk_get(chip->dev, "core-clk");
    if (IS_ERR(chip->core_clk))
    return PTR_ERR(chip->core_clk);
    @@ -1336,6 +1343,7 @@ static const struct dev_pm_ops dw_axi_dma_pm_ops = {

    static const struct of_device_id dw_dma_of_id_table[] = {
    { .compatible = "snps,axi-dma-1.01a" },
    + { .compatible = "intel,kmb-axi-dma" },
    {}
    };
    MODULE_DEVICE_TABLE(of, dw_dma_of_id_table);
    --
    2.18.0
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