diff options
author | Andriy Tryshnivskyy <andriy.tryshnivskyy@opensynergy.com> | 2021-10-04 20:31:34 +0300 |
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committer | Jan-Simon Moeller <jsmoeller@linuxfoundation.org> | 2021-10-14 15:20:42 +0000 |
commit | 45db55111393ee74ed9943b682de8e5cbbb636ac (patch) | |
tree | c0a535776592b9c2ba32ca60512c617fe0dcf922 /meta-egvirt/recipes-kernel/linux/linux-yocto/virtio-scmi/0008-firmware-arm_scmi-Add-is_scmi_protocol_device.patch | |
parent | 5576b44ebd964fa30ae5e5ac435a95955ddb0e0b (diff) |
virtualization/linux-yocto: Backport virtio SCMI driver.
This patch series is a "RFC v2" implementation of a driver for
virtio SCMI device [1].
[1]: https://github.com/oasis-tcs/virtio-spec/blob/master/virtio-scmi.tex
Bug-AGL: SPEC-3865
Upstream-Status: Submitted [https://lore.kernel.org/linux-arm-kernel/20201105212116.411422-1-peter.hilber@opensynergy.com/]
Signed-off-by: Andriy Tryshnivskyy <andriy.tryshnivskyy@opensynergy.com>
Change-Id: I653cb44769232ae5434bd54169910fd0518f1db8
Diffstat (limited to 'meta-egvirt/recipes-kernel/linux/linux-yocto/virtio-scmi/0008-firmware-arm_scmi-Add-is_scmi_protocol_device.patch')
-rw-r--r-- | meta-egvirt/recipes-kernel/linux/linux-yocto/virtio-scmi/0008-firmware-arm_scmi-Add-is_scmi_protocol_device.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/meta-egvirt/recipes-kernel/linux/linux-yocto/virtio-scmi/0008-firmware-arm_scmi-Add-is_scmi_protocol_device.patch b/meta-egvirt/recipes-kernel/linux/linux-yocto/virtio-scmi/0008-firmware-arm_scmi-Add-is_scmi_protocol_device.patch new file mode 100644 index 00000000..92aad65e --- /dev/null +++ b/meta-egvirt/recipes-kernel/linux/linux-yocto/virtio-scmi/0008-firmware-arm_scmi-Add-is_scmi_protocol_device.patch @@ -0,0 +1,46 @@ +From c4b299105e74f7863b2aa63bd838e7762761629c Mon Sep 17 00:00:00 2001 +From: Peter Hilber <peter.hilber@opensynergy.com> +Date: Thu, 5 Nov 2020 22:21:14 +0100 +Subject: [PATCH] firmware: arm_scmi: Add is_scmi_protocol_device() + +The scmi-virtio transport driver will need to distinguish SCMI protocol +devices from the SCMI instance device in the chan_setup() and +chan_free() ops. Add this internal helper to be able to distinguish the +two. + +Signed-off-by: Peter Hilber <peter.hilber@opensynergy.com> +Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> +--- + drivers/firmware/arm_scmi/bus.c | 5 +++++ + drivers/firmware/arm_scmi/common.h | 2 ++ + 2 files changed, 7 insertions(+) + +diff --git a/drivers/firmware/arm_scmi/bus.c b/drivers/firmware/arm_scmi/bus.c +index 1377ec76a45d..4f19faafb2c5 100644 +--- a/drivers/firmware/arm_scmi/bus.c ++++ b/drivers/firmware/arm_scmi/bus.c +@@ -108,6 +108,11 @@ static struct bus_type scmi_bus_type = { + .remove = scmi_dev_remove, + }; + ++bool is_scmi_protocol_device(struct device *dev) ++{ ++ return dev->bus == &scmi_bus_type; ++} ++ + int scmi_driver_register(struct scmi_driver *driver, struct module *owner, + const char *mod_name) + { +diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h +index ec9fd7fce3c7..13c9ac176b23 100644 +--- a/drivers/firmware/arm_scmi/common.h ++++ b/drivers/firmware/arm_scmi/common.h +@@ -158,6 +158,8 @@ int scmi_version_get(const struct scmi_handle *h, u8 protocol, u32 *version); + void scmi_setup_protocol_implemented(const struct scmi_handle *handle, + u8 *prot_imp); + ++bool is_scmi_protocol_device(struct device *dev); ++ + int scmi_base_protocol_init(struct scmi_handle *h); + + int __init scmi_bus_init(void); |