1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-common.h b/drivers/phy/qualcomm/phy-qcom-qmp-common.h
new file mode 100644
index 00000000000000..7993842105093f
--- /dev/null
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-common.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2017, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef QCOM_PHY_QMP_COMMON_H_
+#define QCOM_PHY_QMP_COMMON_H_
+
+struct qmp_phy_init_tbl {
+	unsigned int offset;
+	unsigned int val;
+	/*
+	 * mask of lanes for which this register is written
+	 * for cases when second lane needs different values
+	 */
+	u8 lane_mask;
+};
+
+#define QMP_PHY_INIT_CFG(o, v)		\
+	{				\
+		.offset = o,		\
+		.val = v,		\
+		.lane_mask = 0xff,	\
+	}
+
+#define QMP_PHY_INIT_CFG_LANE(o, v, l)	\
+	{				\
+		.offset = o,		\
+		.val = v,		\
+		.lane_mask = l,		\
+	}
+
+static inline void qmp_configure_lane(void __iomem *base,
+					   const struct qmp_phy_init_tbl tbl[],
+					   int num,
+					   u8 lane_mask)
+{
+	int i;
+	const struct qmp_phy_init_tbl *t = tbl;
+
+	if (!t)
+		return;
+
+	for (i = 0; i < num; i++, t++) {
+		if (!(t->lane_mask & lane_mask))
+			continue;
+
+		writel(t->val, base + t->offset);
+	}
+}
+
+static inline void qmp_configure(void __iomem *base,
+				      const struct qmp_phy_init_tbl tbl[],
+				      int num)
+{
+	qmp_configure_lane(base, tbl, num, 0xff);
+}
+
+#endif