diff options
Diffstat (limited to 'target/linux/layerscape/patches-4.4/7176-staging-fsl-mc-add-dpmcp-version-check.patch')
| -rw-r--r-- | target/linux/layerscape/patches-4.4/7176-staging-fsl-mc-add-dpmcp-version-check.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-4.4/7176-staging-fsl-mc-add-dpmcp-version-check.patch b/target/linux/layerscape/patches-4.4/7176-staging-fsl-mc-add-dpmcp-version-check.patch new file mode 100644 index 0000000000..148a724c03 --- /dev/null +++ b/target/linux/layerscape/patches-4.4/7176-staging-fsl-mc-add-dpmcp-version-check.patch @@ -0,0 +1,56 @@ +From 035789ffb3b89b9764d7cc79d209a5795c18fa93 Mon Sep 17 00:00:00 2001 +From: Itai Katz <itai.katz@nxp.com> +Date: Mon, 11 Apr 2016 11:56:11 -0500 +Subject: [PATCH 176/226] 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> +--- + 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(-) + +--- 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 +--- 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( + 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; + |