target/linux/brcm2708/patches-4.1/0147-Revert-firmware-bcm2835-Support-legacy-mailbox-API.patch

   1 From dc3946ac37e0c7aed74b0041f742a102d37af425 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
   3 Date: Fri, 24 Jul 2015 19:34:55 +0200
   4 Subject: [PATCH 147/148] Revert "firmware: bcm2835: Support legacy mailbox
   5  API"
   6 MIME-Version: 1.0
   7 Content-Type: text/plain; charset=UTF-8
   8 Content-Transfer-Encoding: 8bit
   9
  10 This reverts commit 40aa3c4f0c430cd5c574498f4d1d5e9f0bc1cf11.
  11
  12 The legacy mailbox API has been removed so this is not needed.
  13
  14 Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
  15 ---
  16  drivers/firmware/raspberrypi.c             | 15 ++-------------
  17  include/soc/bcm2835/raspberrypi-firmware.h |  2 --
  18  2 files changed, 2 insertions(+), 15 deletions(-)
  19
  20 --- a/drivers/firmware/raspberrypi.c
  21 +++ b/drivers/firmware/raspberrypi.c
  22 @@ -19,7 +19,6 @@
  23  #define MBOX_MSG(chan, data28)         (((data28) & ~0xf) | ((chan) & 0xf))
  24  #define MBOX_CHAN(msg)                 ((msg) & 0xf)
  25  #define MBOX_DATA28(msg)               ((msg) & ~0xf)
  26 -#define MBOX_CHAN_VCHIQ                        3
  27  #define MBOX_CHAN_PROPERTY             8
  28
  29  struct rpi_firmware {
  30 @@ -27,7 +26,6 @@ struct rpi_firmware {
  31         struct mbox_chan *chan; /* The property channel. */
  32         struct completion c;
  33         u32 enabled;
  34 -       u32 received;
  35  };
  36
  37  static struct platform_device *g_pdev;
  38 @@ -37,7 +35,6 @@ static DEFINE_MUTEX(transaction_lock);
  39  static void response_callback(struct mbox_client *cl, void *msg)
  40  {
  41         struct rpi_firmware *fw = container_of(cl, struct rpi_firmware, cl);
  42 -       fw->received = *(u32 *)msg;
  43         complete(&fw->c);
  44  }
  45
  46 @@ -45,7 +42,7 @@ static void response_callback(struct mbo
  47   * Sends a request to the firmware through the BCM2835 mailbox driver,
  48   * and synchronously waits for the reply.
  49   */
  50 -int
  51 +static int
  52  rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data)
  53  {
  54         u32 message = MBOX_MSG(chan, data);
  55 @@ -57,8 +54,7 @@ rpi_firmware_transaction(struct rpi_firm
  56         reinit_completion(&fw->c);
  57         ret = mbox_send_message(fw->chan, &message);
  58         if (ret >= 0) {
  59 -               if (chan != MBOX_CHAN_VCHIQ)
  60 -                       wait_for_completion(&fw->c);
  61 +               wait_for_completion(&fw->c);
  62                 ret = 0;
  63         } else {
  64                 dev_err(fw->cl.dev, "mbox_send_message returned %d\n", ret);
  65 @@ -67,13 +63,6 @@ rpi_firmware_transaction(struct rpi_firm
  66
  67         return ret;
  68  }
  69 -EXPORT_SYMBOL(rpi_firmware_transaction);
  70 -
  71 -u32 rpi_firmware_transaction_received(struct rpi_firmware *fw)
  72 -{
  73 -       return MBOX_DATA28(fw->received);
  74 -}
  75 -EXPORT_SYMBOL(rpi_firmware_transaction_received);
  76
  77  /**
  78   * rpi_firmware_property_list - Submit firmware property list
  79 --- a/include/soc/bcm2835/raspberrypi-firmware.h
  80 +++ b/include/soc/bcm2835/raspberrypi-firmware.h
  81 @@ -116,8 +116,6 @@ enum rpi_firmware_property_tag {
  82         RPI_FIRMWARE_GET_DMA_CHANNELS =                       0x00060001,
  83  };
  84
  85 -int rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data);
  86 -u32 rpi_firmware_transaction_received(struct rpi_firmware *fw);
  87  int rpi_firmware_property(struct rpi_firmware *fw,
  88                           u32 tag, void *data, size_t len);
  89  int rpi_firmware_property_list(struct rpi_firmware *fw,