diff options
Diffstat (limited to 'target/linux/layerscape/patches-4.4/7179-staging-fsl-mc-add-support-for-the-modalias-sysfs-at.patch')
| -rw-r--r-- | target/linux/layerscape/patches-4.4/7179-staging-fsl-mc-add-support-for-the-modalias-sysfs-at.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-4.4/7179-staging-fsl-mc-add-support-for-the-modalias-sysfs-at.patch b/target/linux/layerscape/patches-4.4/7179-staging-fsl-mc-add-support-for-the-modalias-sysfs-at.patch new file mode 100644 index 0000000000..030c195f76 --- /dev/null +++ b/target/linux/layerscape/patches-4.4/7179-staging-fsl-mc-add-support-for-the-modalias-sysfs-at.patch @@ -0,0 +1,54 @@ +From 227c693741ce1fbf0ad146c87f03369334941f2e Mon Sep 17 00:00:00 2001 +From: Stuart Yoder <stuart.yoder@nxp.com> +Date: Wed, 22 Jun 2016 16:40:42 -0500 +Subject: [PATCH 179/226] staging: fsl-mc: add support for the modalias sysfs + attribute + +In order to support uevent based module loading implement modalias support +for the fsl-mc bus driver. Aliases are based on vendor and object/device +id and are of the form "fsl-mc:vNdN". + +Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> +Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +--- + drivers/staging/fsl-mc/bus/mc-bus.c | 25 +++++++++++++++++++++++++ + 1 file changed, 25 insertions(+) + +--- a/drivers/staging/fsl-mc/bus/mc-bus.c ++++ b/drivers/staging/fsl-mc/bus/mc-bus.c +@@ -82,10 +82,35 @@ static int fsl_mc_bus_uevent(struct devi + return 0; + } + ++static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, ++ char *buf) ++{ ++ struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev); ++ ++ return sprintf(buf, "fsl-mc:v%08Xd%s\n", mc_dev->obj_desc.vendor, ++ mc_dev->obj_desc.type); ++} ++static DEVICE_ATTR_RO(modalias); ++ ++static struct attribute *fsl_mc_dev_attrs[] = { ++ &dev_attr_modalias.attr, ++ NULL, ++}; ++ ++static const struct attribute_group fsl_mc_dev_group = { ++ .attrs = fsl_mc_dev_attrs, ++}; ++ ++static const struct attribute_group *fsl_mc_dev_groups[] = { ++ &fsl_mc_dev_group, ++ NULL, ++}; ++ + struct bus_type fsl_mc_bus_type = { + .name = "fsl-mc", + .match = fsl_mc_bus_match, + .uevent = fsl_mc_bus_uevent, ++ .dev_groups = fsl_mc_dev_groups, + }; + EXPORT_SYMBOL_GPL(fsl_mc_bus_type); + |