[PATCH v6 2/8] arm: snapdragon: Guard PSCI functions with CONFIG_ARM_SMCCC

[Balaji Selvanathan via U-Boot <u-boot@lists.u-boot-project.org>]

In snagboot mode, U-Boot is loaded directly by XBL without PSCI
firmware support. The functions show_psci_version() and
qcom_psci_fixup() call arm_smccc_smc() which is unavailable when
CONFIG_ARM_SMCCC is disabled, causing build failures.

Hence, added CONFIG_ARM_SMCCC guards to both functions.

Signed-off-by: Balaji Selvanathan <balaji.selvanathan@oss.qualcomm.com>
---
Changes in v5:
- No changes

Changes in v4:
- No changes

Changes in v3:
- Added CONFIG_ARM_SMCCC guards

Changes in v2:
- Newly introduced in v2
---
 arch/arm/mach-snapdragon/board.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/mach-snapdragon/board.c b/arch/arm/mach-snapdragon/board.c
index 9866a3e4607..8eba08eca20 100644
--- a/arch/arm/mach-snapdragon/board.c
+++ b/arch/arm/mach-snapdragon/board.c
@@ -50,6 +50,9 @@ static void show_psci_version(void)
 {
 	struct arm_smccc_res res;
 
+	if (!IS_ENABLED(CONFIG_ARM_SMCCC))
+		return;
+
 	arm_smccc_smc(ARM_PSCI_0_2_FN_PSCI_VERSION, 0, 0, 0, 0, 0, 0, 0, &res);
 
 	/* Some older SoCs like MSM8916 don't always support PSCI */
@@ -73,6 +76,9 @@ static void qcom_psci_fixup(void *fdt)
 	int offset, ret;
 	struct arm_smccc_res res;
 
+	if (!IS_ENABLED(CONFIG_ARM_SMCCC))
+		return;
+
 	arm_smccc_smc(ARM_PSCI_0_2_FN_PSCI_VERSION, 0, 0, 0, 0, 0, 0, 0, &res);
 
 	if ((int)res.a0 != PSCI_RET_NOT_SUPPORTED)

-- 
2.34.1