firmware: qcom_scm: Add missing is_available API

Add back function that was dropped when reworking the SCM code.

Signed-off-by: Andy Gross <andy.gross@linaro.org>

diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index 84330c5f05d0b9ae270c53be669811b3c8363a24..89c3775fb69bc293d447f6116ed4bb97857b7a37 100644 (file)
--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -308,6 +308,14 @@ static const struct reset_control_ops qcom_scm_pas_reset_ops = {
        .deassert = qcom_scm_pas_reset_deassert,
 };
 
+/**
+ * qcom_scm_is_available() - Checks if SCM is available
+ */
+bool qcom_scm_is_available(void)
+{
+       return !!__scm;
+}
+EXPORT_SYMBOL(qcom_scm_is_available);
 
 static int qcom_scm_probe(struct platform_device *pdev)
 {