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From: Andre Przywara <andre.przywara@arm.com>
To: Yangtao Li <tiny.windzz@gmail.com>,
	Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
	Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>,
	"Rafael J . Wysocki" <rafael@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Lorenzo Pieralisi <lpieralisi@kernel.org>,
	Sudeep Holla <sudeep.holla@arm.com>
Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-sunxi@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	Brandon Cheo Fusi <fusibrandon13@gmail.com>,
	Martin Botka <martin.botka@somainline.org>,
	Martin Botka <martin.botka1@gmail.com>
Subject: [PATCH v2 1/8] firmware: smccc: Export revision soc_id function
Date: Mon, 18 Mar 2024 01:12:21 +0000	[thread overview]
Message-ID: <20240318011228.2626-2-andre.przywara@arm.com> (raw)
In-Reply-To: <20240318011228.2626-1-andre.przywara@arm.com>

From: Martin Botka <martin.botka@somainline.org>

The "SoC ID revision" as provided via the SMCCC SOCID interface can be
valuable information for drivers, when certain functionality depends
on a die revision, for instance.
One example is the sun50i-cpufreq-nvmem driver, which needs this
information to determine the speed bin of the SoC.

Export the arm_smccc_get_soc_id_revision() function so that it can be
called by any driver.

Signed-off-by: Martin Botka <martin.botka@somainline.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 drivers/firmware/smccc/smccc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/smccc/smccc.c b/drivers/firmware/smccc/smccc.c
index db818f9dcb8ee..d670635914ecb 100644
--- a/drivers/firmware/smccc/smccc.c
+++ b/drivers/firmware/smccc/smccc.c
@@ -69,6 +69,7 @@ s32 arm_smccc_get_soc_id_revision(void)
 {
 	return smccc_soc_id_revision;
 }
+EXPORT_SYMBOL_GPL(arm_smccc_get_soc_id_revision);
 
 static int __init smccc_devices_init(void)
 {
-- 
2.35.8


WARNING: multiple messages have this Message-ID (diff)
From: Andre Przywara <andre.przywara@arm.com>
To: Yangtao Li <tiny.windzz@gmail.com>,
	Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
	Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>,
	"Rafael J . Wysocki" <rafael@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Lorenzo Pieralisi <lpieralisi@kernel.org>,
	Sudeep Holla <sudeep.holla@arm.com>
Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-sunxi@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	Brandon Cheo Fusi <fusibrandon13@gmail.com>,
	Martin Botka <martin.botka@somainline.org>,
	Martin Botka <martin.botka1@gmail.com>
Subject: [PATCH v2 1/8] firmware: smccc: Export revision soc_id function
Date: Mon, 18 Mar 2024 01:12:21 +0000	[thread overview]
Message-ID: <20240318011228.2626-2-andre.przywara@arm.com> (raw)
In-Reply-To: <20240318011228.2626-1-andre.przywara@arm.com>

From: Martin Botka <martin.botka@somainline.org>

The "SoC ID revision" as provided via the SMCCC SOCID interface can be
valuable information for drivers, when certain functionality depends
on a die revision, for instance.
One example is the sun50i-cpufreq-nvmem driver, which needs this
information to determine the speed bin of the SoC.

Export the arm_smccc_get_soc_id_revision() function so that it can be
called by any driver.

Signed-off-by: Martin Botka <martin.botka@somainline.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 drivers/firmware/smccc/smccc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/smccc/smccc.c b/drivers/firmware/smccc/smccc.c
index db818f9dcb8ee..d670635914ecb 100644
--- a/drivers/firmware/smccc/smccc.c
+++ b/drivers/firmware/smccc/smccc.c
@@ -69,6 +69,7 @@ s32 arm_smccc_get_soc_id_revision(void)
 {
 	return smccc_soc_id_revision;
 }
+EXPORT_SYMBOL_GPL(arm_smccc_get_soc_id_revision);
 
 static int __init smccc_devices_init(void)
 {
-- 
2.35.8


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  reply	other threads:[~2024-03-18  1:12 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-18  1:12 [PATCH v2 0/8] cpufreq: sun50i: Add Allwinner H616 support Andre Przywara
2024-03-18  1:12 ` Andre Przywara
2024-03-18  1:12 ` Andre Przywara [this message]
2024-03-18  1:12   ` [PATCH v2 1/8] firmware: smccc: Export revision soc_id function Andre Przywara
2024-03-18  1:12 ` [PATCH v2 2/8] cpufreq: dt-platdev: Blocklist Allwinner H616/618 SoCs Andre Przywara
2024-03-18  1:12   ` Andre Przywara
2024-03-18  1:12 ` [PATCH v2 3/8] dt-bindings: opp: Describe H616 OPPs and opp-supported-hw Andre Przywara
2024-03-18  1:12   ` Andre Przywara
2024-03-20 15:02   ` Rob Herring
2024-03-20 15:02     ` Rob Herring
2024-03-20 15:37     ` Andre Przywara
2024-03-20 15:37       ` Andre Przywara
2024-03-21  3:09       ` Viresh Kumar
2024-03-21  3:09         ` Viresh Kumar
2024-03-26 11:02         ` Andre Przywara
2024-03-26 11:02           ` Andre Przywara
2024-03-18  1:12 ` [PATCH v2 4/8] cpufreq: sun50i: Refactor speed bin decoding Andre Przywara
2024-03-18  1:12   ` Andre Przywara
2024-03-18  1:12 ` [PATCH v2 5/8] cpufreq: sun50i: Add support for opp_supported_hw Andre Przywara
2024-03-18  1:12   ` Andre Przywara
2024-03-18  1:12 ` [PATCH v2 6/8] cpufreq: sun50i: Add H616 support Andre Przywara
2024-03-18  1:12   ` Andre Przywara
2024-03-18  1:12 ` [PATCH v2 7/8] arm64: dts: allwinner: h616: Add CPU OPPs table Andre Przywara
2024-03-18  1:12   ` Andre Przywara
2024-03-18  1:12 ` [PATCH v2 8/8] arm64: dts: allwinner: h616: enable DVFS for all boards Andre Przywara
2024-03-18  1:12   ` Andre Przywara

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