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authorGabriel Somlo <somlo@cmu.edu>2016-01-28 17:23:11 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-02-10 04:37:39 +0300
commit75f3e8e47f381074801d0034874d20c638d9e3d9 (patch)
treeb6d6e20113c38b04c126747144a162055f7e7a69 /drivers/firmware/Makefile
parent2fe829aca9d7bed5fd6b49c6a1452e5e486b6cc3 (diff)
downloadlinux-75f3e8e47f381074801d0034874d20c638d9e3d9.tar.xz
firmware: introduce sysfs driver for QEMU's fw_cfg device
Make fw_cfg entries of type "file" available via sysfs. Entries are listed under /sys/firmware/qemu_fw_cfg/by_key, in folders named after each entry's selector key. Filename, selector value, and size read-only attributes are included for each entry. Also, a "raw" attribute allows retrieval of the full binary content of each entry. The fw_cfg device can be instantiated automatically from ACPI or the Device Tree, or manually by using a kernel module (or command line) parameter, with a syntax outlined in the documentation file. Signed-off-by: Gabriel Somlo <somlo@cmu.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/firmware/Makefile')
-rw-r--r--drivers/firmware/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index 48dd4175297e..474bada56fcd 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_ISCSI_IBFT_FIND) += iscsi_ibft_find.o
obj-$(CONFIG_ISCSI_IBFT) += iscsi_ibft.o
obj-$(CONFIG_FIRMWARE_MEMMAP) += memmap.o
obj-$(CONFIG_RASPBERRYPI_FIRMWARE) += raspberrypi.o
+obj-$(CONFIG_FW_CFG_SYSFS) += qemu_fw_cfg.o
obj-$(CONFIG_QCOM_SCM) += qcom_scm.o
obj-$(CONFIG_QCOM_SCM_64) += qcom_scm-64.o
obj-$(CONFIG_QCOM_SCM_32) += qcom_scm-32.o