dw_dmac: add support for Lynxpoint DMA controllers

Intel Lynxpoint PCH Low Power Subsystem has DMA controller to support general
purpose serial buses like SPI, I2C, and HSUART. This controller is enumerated
from ACPI namespace with ACPI ID INTL9C60.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 35c8dd5f1013..6694676c9b82 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1899,6 +1899,11 @@ static const struct of_device_id dw_dma_id_table[] = {
 MODULE_DEVICE_TABLE(of, dw_dma_id_table);
 #endif
 
+static const struct platform_device_id dw_dma_ids[] = {
+        { "INTL9C60", 0 },
+        { }
+};
+
 static struct platform_driver dw_driver = {
         .probe          = dw_probe,
         .remove         = dw_remove,
@@ -1908,6 +1913,7 @@ static struct platform_driver dw_driver = {
                 .pm     = &dw_dev_pm_ops,
                 .of_match_table = of_match_ptr(dw_dma_id_table),
         },
+        .id_table       = dw_dma_ids,
 };
 
 static int __init dw_init(void)