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From 5662c553e89ac4179ec2a7a94a342ba3e5d78cf7 Mon Sep 17 00:00:00 2001
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From: Hans Ulli Kroll <ulli.kroll@googlemail.com>
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Date: Thu, 9 Feb 2017 15:20:49 +0100
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Subject: [PATCH 28/31] usb: host: fotg2: add device tree probing
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Add device tree probing to the fotg2 driver.
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Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
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Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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---
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ChangeLog v2->v3:
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- Change compatible to "faraday,fotg210" simply.
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---
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drivers/usb/host/fotg210-hcd.c | 19 +++++++++++++++++++
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1 file changed, 19 insertions(+)
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--- a/drivers/usb/host/fotg210-hcd.c
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+++ b/drivers/usb/host/fotg210-hcd.c
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@@ -23,6 +23,7 @@
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* Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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+#include <linux/of.h>
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#include <linux/device.h>
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#include <linux/dmapool.h>
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#include <linux/kernel.h>
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@@ -5604,6 +5605,15 @@ static int fotg210_hcd_probe(struct plat
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if (usb_disabled())
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return -ENODEV;
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+ /* Right now device-tree probed devices don't get dma_mask set.
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+ * Since shared usb code relies on it, set it here for now.
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+ * Once we have dma capability bindings this can go away.
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+ */
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+
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+ retval = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
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+ if (retval)
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+ goto fail_create_hcd;
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+
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pdev->dev.power.power_state = PMSG_ON;
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res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
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@@ -5680,9 +5690,18 @@ static int fotg210_hcd_remove(struct pla
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return 0;
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}
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+#ifdef CONFIG_OF
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+static const struct of_device_id fotg210_of_match[] = {
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+ { .compatible = "faraday,fotg210" },
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+ {},
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+};
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+MODULE_DEVICE_TABLE(of, fotg210_of_match);
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+#endif
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+
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static struct platform_driver fotg210_hcd_driver = {
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.driver = {
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.name = "fotg210-hcd",
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+ .of_match_table = of_match_ptr(fotg210_of_match),
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},
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.probe = fotg210_hcd_probe,
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.remove = fotg210_hcd_remove,
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