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authorJakub Kicinski <kuba@kernel.org>2024-03-22 02:14:13 +0300
committerJakub Kicinski <kuba@kernel.org>2024-03-22 02:15:08 +0300
commit537c2e91d3549e5d6020bb0576cf9b54a845255f (patch)
treec09e8a1b7d733cde19b0c72678c28fb2bc97ff6b /drivers/phy/qualcomm/phy-qcom-qmp-common.h
parent237bb5f7f7f55ec5f773469a974c61a49c298625 (diff)
parentcba9ffdb9913dfe6be29f049ce920ce451ce7cc4 (diff)
downloadlinux-537c2e91d3549e5d6020bb0576cf9b54a845255f.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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 000000000000..799384210509
--- /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