From: Peter Hilber <peter.hilber@opensynergy.com>
To: <linux-arm-kernel@lists.infradead.org>, <devicetree@vger.kernel.org>
Cc: Peter Hilber <peter.hilber@opensynergy.com>,
Rob Herring <robh+dt@kernel.org>, <linux-kernel@vger.kernel.org>,
<sudeep.holla@arm.com>, <souvik.chakravarty@arm.com>,
<alex.bennee@linaro.org>, <jean-philippe@linaro.org>,
<igor.skalkin@opensynergy.com>, <mikhail.golubev@opensynergy.com>,
<anton.yakovlev@opensynergy.com>
Subject: [RFC PATCH v2 08/10] firmware: arm_scmi: Add is_scmi_protocol_device()
Date: Thu, 5 Nov 2020 22:21:14 +0100 [thread overview]
Message-ID: <20201105212116.411422-9-peter.hilber@opensynergy.com> (raw)
In-Reply-To: <20201105212116.411422-1-peter.hilber@opensynergy.com>
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>
---
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);
--
2.25.1
next prev parent reply other threads:[~2020-11-05 21:28 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-05 21:21 [RFC PATCH v2 00/10] firmware: arm_scmi: Add virtio transport Peter Hilber
2020-11-05 21:21 ` [RFC PATCH v2 01/10] firmware: arm_scmi, smccc, mailbox: Make shmem based transports optional Peter Hilber
2020-11-05 21:21 ` [RFC PATCH v2 02/10] firmware: arm_scmi: Document that max_msg is a per channel type limit Peter Hilber
2020-11-05 21:21 ` [RFC PATCH v2 03/10] firmware: arm_scmi: Add op to override max message # Peter Hilber
2020-11-05 21:21 ` [RFC PATCH v2 04/10] firmware: arm_scmi: Add per message transport data Peter Hilber
2020-11-05 21:21 ` [RFC PATCH v2 05/10] firmware: arm_scmi: Add xfer_init_buffers transport op Peter Hilber
2020-11-05 21:21 ` [RFC PATCH v2 06/10] firmware: arm_scmi: Add optional link_supplier() " Peter Hilber
2020-11-05 21:21 ` [RFC PATCH v2 07/10] firmware: arm_scmi: Add per-device transport private info Peter Hilber
2020-11-05 21:21 ` Peter Hilber [this message]
2020-11-05 21:21 ` [RFC PATCH v2 09/10] dt-bindings: arm: Add virtio transport for SCMI Peter Hilber
2020-11-05 21:21 ` [RFC PATCH v2 10/10] firmware: arm_scmi: Add virtio transport Peter Hilber
2020-11-10 21:32 ` Cristian Marussi
2020-11-12 10:57 ` Peter Hilber
2020-11-17 21:20 ` Cristian Marussi
2021-04-08 3:45 ` Viresh Kumar
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