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From: Sudeep Holla <sudeep.holla@arm.com>
To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Sudeep Holla <sudeep.holla@arm.com>,
	Cristian Marussi <cristian.marussi@arm.com>
Subject: [PATCH 08/15] firmware: arm_scmi: Add and initialise protocol version to scmi_device structure
Date: Tue, 10 Dec 2019 14:53:38 +0000	[thread overview]
Message-ID: <20191210145345.11616-9-sudeep.holla@arm.com> (raw)
In-Reply-To: <20191210145345.11616-1-sudeep.holla@arm.com>

It's useful to keep track of scmi protocol version in the scmi device
structure along with the protocol id. These can be used to expose the
information to the userspace via bus dev_groups attributes as well.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
 drivers/firmware/arm_scmi/clock.c   | 6 +++++-
 drivers/firmware/arm_scmi/perf.c    | 6 +++++-
 drivers/firmware/arm_scmi/power.c   | 6 +++++-
 drivers/firmware/arm_scmi/reset.c   | 6 +++++-
 drivers/firmware/arm_scmi/sensors.c | 6 +++++-
 include/linux/scmi_protocol.h       | 1 +
 6 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/drivers/firmware/arm_scmi/clock.c b/drivers/firmware/arm_scmi/clock.c
index b567ec03f711..b68736ae7f88 100644
--- a/drivers/firmware/arm_scmi/clock.c
+++ b/drivers/firmware/arm_scmi/clock.c
@@ -318,8 +318,11 @@ static int scmi_clock_protocol_init(struct scmi_device *dev)
 	struct clock_info *cinfo;
 	struct scmi_handle *handle = dev->handle;

-	if (handle->clk_ops && handle->clk_priv)
+	if (handle->clk_ops && handle->clk_priv) {
+		cinfo = handle->clk_priv;
+		dev->version = cinfo->version;
 		return 0; /* initialised already for the first device */
+	}

 	scmi_version_get(handle, SCMI_PROTOCOL_CLOCK, &version);

@@ -345,6 +348,7 @@ static int scmi_clock_protocol_init(struct scmi_device *dev)
 			scmi_clock_describe_rates_get(handle, clkid, clk);
 	}

+	dev->version = version;
 	cinfo->version = version;
 	handle->clk_ops = &clk_ops;
 	handle->clk_priv = cinfo;
diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c
index b1de6197f61c..8a02dc453894 100644
--- a/drivers/firmware/arm_scmi/perf.c
+++ b/drivers/firmware/arm_scmi/perf.c
@@ -712,8 +712,11 @@ static int scmi_perf_protocol_init(struct scmi_device *dev)
 	struct scmi_perf_info *pinfo;
 	struct scmi_handle *handle = dev->handle;

-	if (handle->perf_ops && handle->perf_priv)
+	if (handle->perf_ops && handle->perf_priv) {
+		pinfo = handle->perf_priv;
+		dev->version = pinfo->version;
 		return 0; /* initialised already for the first device */
+	}

 	scmi_version_get(handle, SCMI_PROTOCOL_PERF, &version);

@@ -741,6 +744,7 @@ static int scmi_perf_protocol_init(struct scmi_device *dev)
 			scmi_perf_domain_init_fc(handle, domain, &dom->fc_info);
 	}

+	dev->version = version;
 	pinfo->version = version;
 	handle->perf_ops = &perf_ops;
 	handle->perf_priv = pinfo;
diff --git a/drivers/firmware/arm_scmi/power.c b/drivers/firmware/arm_scmi/power.c
index d11c6cd6bbab..6267111e38e6 100644
--- a/drivers/firmware/arm_scmi/power.c
+++ b/drivers/firmware/arm_scmi/power.c
@@ -187,8 +187,11 @@ static int scmi_power_protocol_init(struct scmi_device *dev)
 	struct scmi_power_info *pinfo;
 	struct scmi_handle *handle = dev->handle;

-	if (handle->power_ops && handle->power_priv)
+	if (handle->power_ops && handle->power_priv) {
+		pinfo = handle->power_priv;
+		dev->version = pinfo->version;
 		return 0; /* initialised already for the first device */
+	}

 	scmi_version_get(handle, SCMI_PROTOCOL_POWER, &version);

@@ -212,6 +215,7 @@ static int scmi_power_protocol_init(struct scmi_device *dev)
 		scmi_power_domain_attributes_get(handle, domain, dom);
 	}

+	dev->version = version;
 	pinfo->version = version;
 	handle->power_ops = &power_ops;
 	handle->power_priv = pinfo;
diff --git a/drivers/firmware/arm_scmi/reset.c b/drivers/firmware/arm_scmi/reset.c
index dce103781b3f..76f1cee85a06 100644
--- a/drivers/firmware/arm_scmi/reset.c
+++ b/drivers/firmware/arm_scmi/reset.c
@@ -197,8 +197,11 @@ static int scmi_reset_protocol_init(struct scmi_device *dev)
 	struct scmi_reset_info *pinfo;
 	struct scmi_handle *handle = dev->handle;

-	if (handle->reset_ops && handle->reset_priv)
+	if (handle->reset_ops && handle->reset_priv) {
+		pinfo = handle->reset_priv;
+		dev->version = pinfo->version;
 		return 0; /* initialised already for the first device */
+	}

 	scmi_version_get(handle, SCMI_PROTOCOL_RESET, &version);

@@ -222,6 +225,7 @@ static int scmi_reset_protocol_init(struct scmi_device *dev)
 		scmi_reset_domain_attributes_get(handle, domain, dom);
 	}

+	dev->version = version;
 	pinfo->version = version;
 	handle->reset_ops = &reset_ops;
 	handle->reset_priv = pinfo;
diff --git a/drivers/firmware/arm_scmi/sensors.c b/drivers/firmware/arm_scmi/sensors.c
index aac0243e2880..fb3bed4cb171 100644
--- a/drivers/firmware/arm_scmi/sensors.c
+++ b/drivers/firmware/arm_scmi/sensors.c
@@ -278,8 +278,11 @@ static int scmi_sensors_protocol_init(struct scmi_device *dev)
 	struct sensors_info *sinfo;
 	struct scmi_handle *handle = dev->handle;

-	if (handle->sensor_ops && handle->sensor_priv)
+	if (handle->sensor_ops && handle->sensor_priv) {
+		sinfo = handle->sensor_priv;
+		dev->version = sinfo->version;
 		return 0; /* initialised already for the first device */
+	}

 	scmi_version_get(handle, SCMI_PROTOCOL_SENSOR, &version);

@@ -299,6 +302,7 @@ static int scmi_sensors_protocol_init(struct scmi_device *dev)

 	scmi_sensor_description_get(handle, sinfo);

+	dev->version = version;
 	sinfo->version = version;
 	handle->sensor_ops = &sensor_ops;
 	handle->sensor_priv = sinfo;
diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h
index b676825e6eb0..a863bc0cdf28 100644
--- a/include/linux/scmi_protocol.h
+++ b/include/linux/scmi_protocol.h
@@ -256,6 +256,7 @@ enum scmi_std_protocol {

 struct scmi_device {
 	u32 id;
+	u32 version;
 	u8 protocol_id;
 	const char *name;
 	struct device dev;
--
2.17.1


  parent reply	other threads:[~2019-12-10 14:54 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-10 14:53 [PATCH 00/15] firmware: arm_scmi: Add support for multiple device per protocol Sudeep Holla
2019-12-10 14:53 ` [PATCH 01/15] " Sudeep Holla
2019-12-10 17:02   ` Cristian Marussi
2019-12-10 14:53 ` [PATCH 02/15] firmware: arm_scmi: Skip scmi mbox channel setup for addtional devices Sudeep Holla
2019-12-10 17:33   ` Cristian Marussi
2019-12-10 14:53 ` [PATCH 03/15] firmware: arm_scmi: Skip protocol initialisation for additional devices Sudeep Holla
2019-12-10 18:14   ` Cristian Marussi
2019-12-10 14:53 ` [PATCH 04/15] firmware: arm_scmi: Add names to scmi devices created Sudeep Holla
2019-12-10 18:26   ` Cristian Marussi
2019-12-10 14:53 ` [PATCH 05/15] firmware: arm_scmi: Add versions and identifier attributes using dev_groups Sudeep Holla
2019-12-11 13:21   ` Cristian Marussi
2019-12-10 14:53 ` [PATCH 06/15] firmware: arm_scmi: Update scmi_prot_init_fn_t to use device instead of handle Sudeep Holla
2019-12-11 17:34   ` Cristian Marussi
2019-12-10 14:53 ` [PATCH 07/15] firmware: arm_scmi: Stash version in protocol init functions Sudeep Holla
2019-12-11 17:35   ` Cristian Marussi
2019-12-10 14:53 ` Sudeep Holla [this message]
2019-12-11 18:06   ` [PATCH 08/15] firmware: arm_scmi: Add and initialise protocol version to scmi_device structure Cristian Marussi
2019-12-12 12:15     ` Sudeep Holla
2019-12-10 14:53 ` [PATCH 09/15] firmware: arm_scmi: Add scmi protocol version and id device attributes Sudeep Holla
2019-12-11 18:08   ` Cristian Marussi
2019-12-10 14:53 ` [PATCH 10/15] firmware: arm_scmi: Drop logging individual scmi protocol version Sudeep Holla
2019-12-11 18:09   ` Cristian Marussi
2019-12-10 14:53 ` [PATCH 11/15] firmware: arm_scmi: Match scmi device by both name and protocol id Sudeep Holla
2019-12-11 18:09   ` Cristian Marussi
2019-12-11 18:10   ` Cristian Marussi
2019-12-10 14:53 ` [PATCH 12/15] clk: scmi: " Sudeep Holla
2019-12-24  7:49   ` Stephen Boyd
2019-12-10 14:53 ` [PATCH 13/15] cpufreq: " Sudeep Holla
2019-12-11  2:39   ` Viresh Kumar
2019-12-11 10:13     ` Sudeep Holla
2019-12-11 10:30       ` Viresh Kumar
2019-12-10 14:53 ` [PATCH 14/15] hwmon: (scmi-hwmon) " Sudeep Holla
2019-12-10 18:06   ` Guenter Roeck
2019-12-10 18:20     ` Sudeep Holla
2019-12-10 14:53 ` [PATCH 15/15] reset: reset-scmi: " Sudeep Holla
2019-12-11  9:51   ` Philipp Zabel
2019-12-11 15:28     ` Sudeep Holla

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