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Diffstat (limited to 'drivers/phy/qualcomm/phy-qcom-qmp-common.h')
-rw-r--r--drivers/phy/qualcomm/phy-qcom-qmp-common.h59
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 0000000000..7993842105
--- /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