openwrt/target/linux/sunxi/patches-6.6/017-v6.10-firmware-smccc-Export-revision-soc_id-function.patch

33 lines
1.1 KiB
Diff
Raw Normal View History

From 9cf3415ade2d7598d78d2ce6d35d6d6d06132201 Mon Sep 17 00:00:00 2001
From: Martin Botka <martin.botka@somainline.org>
Date: Thu, 18 Apr 2024 16:44:01 +0100
Subject: [PATCH] firmware: smccc: Export revision soc_id function
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>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
drivers/firmware/smccc/smccc.c | 1 +
1 file changed, 1 insertion(+)
--- 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)
{