diff options
| author | Itai Katz <itai.katz@nxp.com> | 2016-04-11 11:56:11 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-29 18:00:45 -0700 |
| commit | 01f9330846a3aa314a4b784499724b05803f24e6 (patch) | |
| tree | a17d95990a72e1cb195b17de1c83777bae4ce88e /drivers/staging/fsl-mc | |
| parent | ae014c23d5267e1bd2bbafab0e1c741c202496a5 (diff) | |
staging: fsl-mc: add dpmcp version check
The dpmcp driver supports dpmcp version 3.0 and above.
This patch adds the code to check the version.
Signed-off-by: Itai Katz <itai.katz@nxp.com>
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Acked-by: German Rivera <german.rivera@nxp.com>
drivers/staging/fsl-mc/bus/dpmcp-cmd.h | 6 +++---
drivers/staging/fsl-mc/bus/mc-allocator.c | 11 +++++++++++
2 files changed, 14 insertions(+), 3 deletions(-)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/fsl-mc')
| -rw-r--r-- | drivers/staging/fsl-mc/bus/dpmcp-cmd.h | 6 | ||||
| -rw-r--r-- | drivers/staging/fsl-mc/bus/mc-allocator.c | 11 |
2 files changed, 14 insertions, 3 deletions
diff --git a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h index c6f4ec0dd37a..c9b52dd7ba31 100644 --- a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h +++ b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h @@ -32,9 +32,9 @@ #ifndef _FSL_DPMCP_CMD_H #define _FSL_DPMCP_CMD_H -/* DPMCP Version */ -#define DPMCP_VER_MAJOR 3 -#define DPMCP_VER_MINOR 0 +/* Minimal supported DPMCP Version */ +#define DPMCP_MIN_VER_MAJOR 3 +#define DPMCP_MIN_VER_MINOR 0 /* Command IDs */ #define DPMCP_CMDID_CLOSE 0x800 diff --git a/drivers/staging/fsl-mc/bus/mc-allocator.c b/drivers/staging/fsl-mc/bus/mc-allocator.c index 73a75a65d984..e02d5e554b90 100644 --- a/drivers/staging/fsl-mc/bus/mc-allocator.c +++ b/drivers/staging/fsl-mc/bus/mc-allocator.c @@ -297,6 +297,17 @@ int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev, if (WARN_ON(!dpmcp_dev)) goto error_cleanup_resource; + if (dpmcp_dev->obj_desc.ver_major < DPMCP_MIN_VER_MAJOR || + (dpmcp_dev->obj_desc.ver_major == DPMCP_MIN_VER_MAJOR && + dpmcp_dev->obj_desc.ver_minor < DPMCP_MIN_VER_MINOR)) { + dev_err(&dpmcp_dev->dev, + "ERROR: Version %d.%d of DPMCP not supported.\n", + dpmcp_dev->obj_desc.ver_major, + dpmcp_dev->obj_desc.ver_minor); + error = -ENOTSUPP; + goto error_cleanup_resource; + } + if (WARN_ON(dpmcp_dev->obj_desc.region_count == 0)) goto error_cleanup_resource; |