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 diff --git a/arch/arm/mach-bcm2708/vcio.c b/arch/arm/mach-bcm2708/vcio.c
  12 index 5e43e85..700bff4 100644
  13 --- a/arch/arm/mach-bcm2708/vcio.c
  14 +++ b/arch/arm/mach-bcm2708/vcio.c
  15 @@ -61,7 +61,7 @@
  16  #define MBOX_DATA28_LSB(msg)           (((uint32_t)msg) >> 4)
  17
  18  #define MBOX_MAGIC 0xd0d0c0de
  19 -
  20 +static struct class *vcio_class = NULL;
  21  struct vc_mailbox {
  22         struct device *dev;     /* parent device */
  23         void __iomem *status;
  24 @@ -421,6 +421,13 @@ static int bcm_vcio_probe(struct platform_device *pdev)
  25                                "Failed registering the character device %d\n", ret);
  26                         return ret;
  27                 }
  28 +               vcio_class = class_create(THIS_MODULE, BCM_VCIO_DRIVER_NAME);
  29 +               if (IS_ERR(vcio_class)) {
  30 +                   ret = PTR_ERR(vcio_class);
  31 +                  return ret ;
  32 +               }
  33 +               device_create(vcio_class, NULL, MKDEV(MAJOR_NUM, 0), NULL,
  34 +                      "vcio");
  35         }
  36         return ret;
  37  }
  38 @@ -462,6 +469,9 @@ static int __init bcm_mbox_init(void)
  39
  40  static void __exit bcm_mbox_exit(void)
  41  {
  42 +       device_destroy(vcio_class,MKDEV(MAJOR_NUM, 0));
  43 +       class_destroy(vcio_class);
  44 +       unregister_chrdev(MAJOR_NUM, DEVICE_FILE_NAME);
  45         platform_driver_unregister(&bcm_mbox_driver);
  46  }
  47
  48 diff --git a/arch/arm/mach-bcm2709/vcio.c b/arch/arm/mach-bcm2709/vcio.c
  49 index 5e43e85..700bff4 100644
  50 --- a/arch/arm/mach-bcm2709/vcio.c
  51 +++ b/arch/arm/mach-bcm2709/vcio.c
  52 @@ -61,7 +61,7 @@
  53  #define MBOX_DATA28_LSB(msg)           (((uint32_t)msg) >> 4)
  54
  55  #define MBOX_MAGIC 0xd0d0c0de
  56 -
  57 +static struct class *vcio_class = NULL;
  58  struct vc_mailbox {
  59         struct device *dev;     /* parent device */
  60         void __iomem *status;
  61 @@ -421,6 +421,13 @@ static int bcm_vcio_probe(struct platform_device *pdev)
  62                                "Failed registering the character device %d\n", ret);
  63                         return ret;
  64                 }
  65 +               vcio_class = class_create(THIS_MODULE, BCM_VCIO_DRIVER_NAME);
  66 +               if (IS_ERR(vcio_class)) {
  67 +                   ret = PTR_ERR(vcio_class);
  68 +                  return ret ;
  69 +               }
  70 +               device_create(vcio_class, NULL, MKDEV(MAJOR_NUM, 0), NULL,
  71 +                      "vcio");
  72         }
  73         return ret;
  74  }
  75 @@ -462,6 +469,9 @@ static int __init bcm_mbox_init(void)
  76
  77  static void __exit bcm_mbox_exit(void)
  78  {
  79 +       device_destroy(vcio_class,MKDEV(MAJOR_NUM, 0));
  80 +       class_destroy(vcio_class);
  81 +       unregister_chrdev(MAJOR_NUM, DEVICE_FILE_NAME);
  82         platform_driver_unregister(&bcm_mbox_driver);
  83  }
  84
  85 --
  86 1.8.3.2
  87