diff options
Diffstat (limited to 'meta-egvirt/recipes-kernel/linux/linux-yocto/virtio-scmi/0006-firmware-arm_scmi-Add-optional-link_supplier-transpo.patch')
| -rw-r--r-- | meta-egvirt/recipes-kernel/linux/linux-yocto/virtio-scmi/0006-firmware-arm_scmi-Add-optional-link_supplier-transpo.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/meta-egvirt/recipes-kernel/linux/linux-yocto/virtio-scmi/0006-firmware-arm_scmi-Add-optional-link_supplier-transpo.patch b/meta-egvirt/recipes-kernel/linux/linux-yocto/virtio-scmi/0006-firmware-arm_scmi-Add-optional-link_supplier-transpo.patch new file mode 100644 index 00000000..0f5180fa --- /dev/null +++ b/meta-egvirt/recipes-kernel/linux/linux-yocto/virtio-scmi/0006-firmware-arm_scmi-Add-optional-link_supplier-transpo.patch @@ -0,0 +1,54 @@ +From f0d7ff1f10ab846bf32bae3b7d32bf95653954fa Mon Sep 17 00:00:00 2001 +From: Peter Hilber <peter.hilber@opensynergy.com> +Date: Thu, 5 Nov 2020 22:21:12 +0100 +Subject: [PATCH] firmware: arm_scmi: Add optional link_supplier() transport op + +For the scmi-virtio transport, it might not be possible to refer to the +proper virtio device at device tree build time. Therefore, add an op +which will allow scmi-virtio to dynamically link to the proper virtio +device during probe. + +Signed-off-by: Peter Hilber <peter.hilber@opensynergy.com> +Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> +--- + drivers/firmware/arm_scmi/common.h | 2 ++ + drivers/firmware/arm_scmi/driver.c | 6 ++++++ + 2 files changed, 8 insertions(+) + +diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h +index ae5db602e45d..2f55ac71555a 100644 +--- a/drivers/firmware/arm_scmi/common.h ++++ b/drivers/firmware/arm_scmi/common.h +@@ -202,6 +202,7 @@ struct scmi_chan_info { + /** + * struct scmi_transport_ops - Structure representing a SCMI transport ops + * ++ * @link_supplier: Optional callback to add link to a supplier device + * @chan_available: Callback to check if channel is available or not + * @chan_setup: Callback to allocate and setup a channel + * @chan_free: Callback to free a channel +@@ -217,6 +218,7 @@ struct scmi_chan_info { + * @poll_done: Callback to poll transfer status + */ + struct scmi_transport_ops { ++ int (*link_supplier)(struct device *dev); + bool (*chan_available)(struct device *dev, int idx); + int (*chan_setup)(struct scmi_chan_info *cinfo, struct device *dev, + bool tx); +diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c +index 27dd43dcff5b..0b70f9ef9477 100644 +--- a/drivers/firmware/arm_scmi/driver.c ++++ b/drivers/firmware/arm_scmi/driver.c +@@ -826,6 +826,12 @@ static int scmi_probe(struct platform_device *pdev) + handle->dev = info->dev; + handle->version = &info->version; + ++ if (desc->ops->link_supplier) { ++ ret = desc->ops->link_supplier(dev); ++ if (ret) ++ return ret; ++ } ++ + ret = scmi_txrx_setup(info, dev, SCMI_PROTOCOL_BASE); + if (ret) + return ret; |