target/linux/brcm2708/patches-4.9/0104-raspberrypi-firmware-Export-the-general-transaction-.patch

   1 From 207c380da679f31a62a1bb604dd22834d902acaf Mon Sep 17 00:00:00 2001
   2 From: Eric Anholt <eric@anholt.net>
   3 Date: Wed, 14 Sep 2016 09:16:19 +0100
   4 Subject: [PATCH] raspberrypi-firmware: Export the general transaction
   5  function.
   6
   7 The vc4-firmware-kms module is going to be doing the MBOX FB call.
   8
   9 Signed-off-by: Eric Anholt <eric@anholt.net>
  10 ---
  11  drivers/firmware/raspberrypi.c             | 3 ++-
  12  include/soc/bcm2835/raspberrypi-firmware.h | 1 +
  13  2 files changed, 3 insertions(+), 1 deletion(-)
  14
  15 --- a/drivers/firmware/raspberrypi.c
  16 +++ b/drivers/firmware/raspberrypi.c
  17 @@ -42,7 +42,7 @@ static void response_callback(struct mbo
  18   * Sends a request to the firmware through the BCM2835 mailbox driver,
  19   * and synchronously waits for the reply.
  20   */
  21 -static int
  22 +int
  23  rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data)
  24  {
  25         u32 message = MBOX_MSG(chan, data);
  26 @@ -63,6 +63,7 @@ rpi_firmware_transaction(struct rpi_firm
  27
  28         return ret;
  29  }
  30 +EXPORT_SYMBOL_GPL(rpi_firmware_transaction);
  31
  32  /**
  33   * rpi_firmware_property_list - Submit firmware property list
  34 --- a/include/soc/bcm2835/raspberrypi-firmware.h
  35 +++ b/include/soc/bcm2835/raspberrypi-firmware.h
  36 @@ -131,5 +131,6 @@ int rpi_firmware_property(struct rpi_fir
  37  int rpi_firmware_property_list(struct rpi_firmware *fw,
  38                                void *data, size_t tag_size);
  39  struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node);
  40 +int rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data);
  41
  42  #endif /* __SOC_RASPBERRY_FIRMWARE_H__ */