提交 b5419adc 编写于 作者: S Sinan Kaya 提交者: Vinod Koul

dmaengine: qcom_hidma: Add identity register support

The location for destination event channel register has been relocated from
offset 0x28 to 0x40. Update the code accordingly.
Signed-off-by: NSinan Kaya <okaya@codeaurora.org>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
上级 95fbfb7a
......@@ -107,6 +107,7 @@ MODULE_PARM_DESC(nr_desc_prm, "number of descriptors (default: 0)");
enum hidma_cap {
HIDMA_MSI_CAP = 1,
HIDMA_IDENTITY_CAP,
};
/* process completed descriptors */
......@@ -838,7 +839,10 @@ static int hidma_probe(struct platform_device *pdev)
if (!dmadev->nr_descriptors)
dmadev->nr_descriptors = HIDMA_NR_DEFAULT_DESC;
dmadev->chidx = readl(dmadev->dev_trca + 0x28);
if (hidma_test_capability(&pdev->dev, HIDMA_IDENTITY_CAP))
dmadev->chidx = readl(dmadev->dev_trca + 0x40);
else
dmadev->chidx = readl(dmadev->dev_trca + 0x28);
/* Set DMA mask to 64 bits. */
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
......@@ -944,7 +948,7 @@ static int hidma_remove(struct platform_device *pdev)
static const struct acpi_device_id hidma_acpi_ids[] = {
{"QCOM8061"},
{"QCOM8062", HIDMA_MSI_CAP},
{"QCOM8063", HIDMA_MSI_CAP},
{"QCOM8063", (HIDMA_MSI_CAP | HIDMA_IDENTITY_CAP)},
{},
};
MODULE_DEVICE_TABLE(acpi, hidma_acpi_ids);
......@@ -953,7 +957,8 @@ MODULE_DEVICE_TABLE(acpi, hidma_acpi_ids);
static const struct of_device_id hidma_match[] = {
{.compatible = "qcom,hidma-1.0",},
{.compatible = "qcom,hidma-1.1", .data = (void *)(HIDMA_MSI_CAP),},
{.compatible = "qcom,hidma-1.2", .data = (void *)(HIDMA_MSI_CAP),},
{.compatible = "qcom,hidma-1.2",
.data = (void *)(HIDMA_MSI_CAP | HIDMA_IDENTITY_CAP),},
{},
};
MODULE_DEVICE_TABLE(of, hidma_match);
......
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