[PATCH 1/3] usb: host: fotg2: add devicetree probing

Hans Ulli Kroll
2017-02-08T20:31:04Z

Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
---
drivers/usb/host/fotg210-hcd.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 9d0b0518290a..2acc51b0be5a 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -23,6 +23,7 @@
* Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
+#include <linux/of.h>
#include <linux/device.h>
#include <linux/dmapool.h>
#include <linux/kernel.h>
@@ -5600,6 +5601,15 @@ static int fotg210_hcd_probe(struct platform_device *pdev)
if (usb_disabled())
return -ENODEV;

+ /* Right now device-tree probed devices don't get dma_mask set.
+ * Since shared usb code relies on it, set it here for now.
+ * Once we have dma capability bindings this can go away.
+ */
+
+ retval = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (retval)
+ goto fail_create_hcd;
+
pdev->dev.power.power_state = PMSG_ON;

res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
@@ -5676,9 +5686,18 @@ static int fotg210_hcd_remove(struct platform_device *pdev)
return 0;
}

+#ifdef CONFIG_OF
+static const struct of_device_id fotg210_ehci_match[] = {
+ { .compatible = "faraday,fotg210-hcd" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, exynos_ehci_match);
+#endif
+
static struct platform_driver fotg210_hcd_driver = {
.driver = {
.name = "fotg210-hcd",
+ .of_match_table = of_match_ptr(fotg210_ehci_match),
},
.probe = fotg210_hcd_probe,
.remove = fotg210_hcd_remove,
--
2.11.0