target/linux/brcm2708/patches-3.18/0111-BCM2708_VCIO-Add-automatic-creation-of-device-node.patch

   1 From 7fa07e9f8c88a5a628b9ca8a843d3490a59fb9cb Mon Sep 17 00:00:00 2001
   2 From: android <trevd1234@gmail.com>
   3 Date: Mon, 25 Aug 2014 13:18:21 +0100
   4 Subject: [PATCH 111/114] BCM2708_VCIO : Add automatic creation of device node
   5
   6 ---
   7  arch/arm/mach-bcm2708/vcio.c | 12 +++++++++++-
   8  arch/arm/mach-bcm2709/vcio.c | 12 +++++++++++-
   9  2 files changed, 22 insertions(+), 2 deletions(-)
  10
  11 --- a/arch/arm/mach-bcm2708/vcio.c
  12 +++ b/arch/arm/mach-bcm2708/vcio.c
  13 @@ -61,7 +61,7 @@
  14  #define MBOX_DATA28_LSB(msg)           (((uint32_t)msg) >> 4)
  15
  16  #define MBOX_MAGIC 0xd0d0c0de
  17 -
  18 +static struct class *vcio_class = NULL;
  19  struct vc_mailbox {
  20         struct device *dev;     /* parent device */
  21         void __iomem *status;
  22 @@ -421,6 +421,13 @@ static int bcm_vcio_probe(struct platfor
  23                                "Failed registering the character device %d\n", ret);
  24                         return ret;
  25                 }
  26 +               vcio_class = class_create(THIS_MODULE, BCM_VCIO_DRIVER_NAME);
  27 +               if (IS_ERR(vcio_class)) {
  28 +                   ret = PTR_ERR(vcio_class);
  29 +                  return ret ;
  30 +               }
  31 +               device_create(vcio_class, NULL, MKDEV(MAJOR_NUM, 0), NULL,
  32 +                      "vcio");
  33         }
  34         return ret;
  35  }
  36 @@ -462,6 +469,9 @@ static int __init bcm_mbox_init(void)
  37
  38  static void __exit bcm_mbox_exit(void)
  39  {
  40 +       device_destroy(vcio_class,MKDEV(MAJOR_NUM, 0));
  41 +       class_destroy(vcio_class);
  42 +       unregister_chrdev(MAJOR_NUM, DEVICE_FILE_NAME);
  43         platform_driver_unregister(&bcm_mbox_driver);
  44  }
  45
  46 --- a/arch/arm/mach-bcm2709/vcio.c
  47 +++ b/arch/arm/mach-bcm2709/vcio.c
  48 @@ -61,7 +61,7 @@
  49  #define MBOX_DATA28_LSB(msg)           (((uint32_t)msg) >> 4)
  50
  51  #define MBOX_MAGIC 0xd0d0c0de
  52 -
  53 +static struct class *vcio_class = NULL;
  54  struct vc_mailbox {
  55         struct device *dev;     /* parent device */
  56         void __iomem *status;
  57 @@ -421,6 +421,13 @@ static int bcm_vcio_probe(struct platfor
  58                                "Failed registering the character device %d\n", ret);
  59                         return ret;
  60                 }
  61 +               vcio_class = class_create(THIS_MODULE, BCM_VCIO_DRIVER_NAME);
  62 +               if (IS_ERR(vcio_class)) {
  63 +                   ret = PTR_ERR(vcio_class);
  64 +                  return ret ;
  65 +               }
  66 +               device_create(vcio_class, NULL, MKDEV(MAJOR_NUM, 0), NULL,
  67 +                      "vcio");
  68         }
  69         return ret;
  70  }
  71 @@ -462,6 +469,9 @@ static int __init bcm_mbox_init(void)
  72
  73  static void __exit bcm_mbox_exit(void)
  74  {
  75 +       device_destroy(vcio_class,MKDEV(MAJOR_NUM, 0));
  76 +       class_destroy(vcio_class);
  77 +       unregister_chrdev(MAJOR_NUM, DEVICE_FILE_NAME);
  78         platform_driver_unregister(&bcm_mbox_driver);
  79  }
  80