2024-05-27 15:18:01 +00:00
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From 9cf3415ade2d7598d78d2ce6d35d6d6d06132201 Mon Sep 17 00:00:00 2001
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From: Martin Botka <martin.botka@somainline.org>
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Date: Thu, 18 Apr 2024 16:44:01 +0100
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Subject: [PATCH] firmware: smccc: Export revision soc_id function
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The "SoC ID revision" as provided via the SMCCC SOCID interface can be
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valuable information for drivers, when certain functionality depends
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on a die revision, for instance.
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One example is the sun50i-cpufreq-nvmem driver, which needs this
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information to determine the speed bin of the SoC.
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Export the arm_smccc_get_soc_id_revision() function so that it can be
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called by any driver.
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Signed-off-by: Martin Botka <martin.botka@somainline.org>
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Signed-off-by: Andre Przywara <andre.przywara@arm.com>
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Acked-by: Sudeep Holla <sudeep.holla@arm.com>
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Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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---
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drivers/firmware/smccc/smccc.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/firmware/smccc/smccc.c
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+++ b/drivers/firmware/smccc/smccc.c
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2024-11-14 20:16:32 +00:00
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@@ -65,6 +65,7 @@ s32 arm_smccc_get_soc_id_revision(void)
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2024-05-27 15:18:01 +00:00
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{
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return smccc_soc_id_revision;
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}
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+EXPORT_SYMBOL_GPL(arm_smccc_get_soc_id_revision);
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static int __init smccc_devices_init(void)
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{
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