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From 5662c553e89ac4179ec2a7a94a342ba3e5d78cf7 Mon Sep 17 00:00:00 2001
From: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Date: Thu, 9 Feb 2017 15:20:49 +0100
Subject: [PATCH 28/31] usb: host: fotg2: add device tree probing
Add device tree probing to the fotg2 driver.
Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v2->v3:
- Change compatible to "faraday,fotg210" simply.
---
drivers/usb/host/fotg210-hcd.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
--- 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>
@@ -5604,6 +5605,15 @@ static int fotg210_hcd_probe(struct plat
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);
@@ -5680,9 +5690,18 @@ static int fotg210_hcd_remove(struct pla
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id fotg210_of_match[] = {
+ { .compatible = "faraday,fotg210" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, fotg210_of_match);
+#endif
+
static struct platform_driver fotg210_hcd_driver = {
.driver = {
.name = "fotg210-hcd",
+ .of_match_table = of_match_ptr(fotg210_of_match),
},
.probe = fotg210_hcd_probe,
.remove = fotg210_hcd_remove,
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