target/linux/gemini/patches-4.14/0028-usb-host-fotg2-add-device-tree-probing.patch

   1 From 5662c553e89ac4179ec2a7a94a342ba3e5d78cf7 Mon Sep 17 00:00:00 2001
   2 From: Hans Ulli Kroll <ulli.kroll@googlemail.com>
   3 Date: Thu, 9 Feb 2017 15:20:49 +0100
   4 Subject: [PATCH 28/31] usb: host: fotg2: add device tree probing
   5
   6 Add device tree probing to the fotg2 driver.
   7
   8 Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
   9 Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
  10 ---
  11 ChangeLog v2->v3:
  12 - Change compatible to "faraday,fotg210" simply.
  13 ---
  14  drivers/usb/host/fotg210-hcd.c | 19 +++++++++++++++++++
  15  1 file changed, 19 insertions(+)
  16
  17 --- a/drivers/usb/host/fotg210-hcd.c
  18 +++ b/drivers/usb/host/fotg210-hcd.c
  19 @@ -23,6 +23,7 @@
  20   * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21   */
  22  #include <linux/module.h>
  23 +#include <linux/of.h>
  24  #include <linux/device.h>
  25  #include <linux/dmapool.h>
  26  #include <linux/kernel.h>
  27 @@ -5604,6 +5605,15 @@ static int fotg210_hcd_probe(struct plat
  28         if (usb_disabled())
  29                 return -ENODEV;
  30
  31 +       /* Right now device-tree probed devices don't get dma_mask set.
  32 +        * Since shared usb code relies on it, set it here for now.
  33 +        * Once we have dma capability bindings this can go away.
  34 +        */
  35 +
  36 +       retval = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
  37 +       if (retval)
  38 +               goto fail_create_hcd;
  39 +
  40         pdev->dev.power.power_state = PMSG_ON;
  41
  42         res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
  43 @@ -5680,9 +5690,18 @@ static int fotg210_hcd_remove(struct pla
  44         return 0;
  45  }
  46
  47 +#ifdef CONFIG_OF
  48 +static const struct of_device_id fotg210_of_match[] = {
  49 +       { .compatible = "faraday,fotg210" },
  50 +       {},
  51 +};
  52 +MODULE_DEVICE_TABLE(of, fotg210_of_match);
  53 +#endif
  54 +
  55  static struct platform_driver fotg210_hcd_driver = {
  56         .driver = {
  57                 .name   = "fotg210-hcd",
  58 +               .of_match_table = of_match_ptr(fotg210_of_match),
  59         },
  60         .probe  = fotg210_hcd_probe,
  61         .remove = fotg210_hcd_remove,