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-rw-r--r--drivers/clk/qcom/clk-branch.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/clk/qcom/clk-branch.h b/drivers/clk/qcom/clk-branch.h
new file mode 100644
index 000000000..17a581191
--- /dev/null
+++ b/drivers/clk/qcom/clk-branch.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2013, The Linux Foundation. All rights reserved. */
+
+#ifndef __QCOM_CLK_BRANCH_H__
+#define __QCOM_CLK_BRANCH_H__
+
+#include <linux/clk-provider.h>
+
+#include "clk-regmap.h"
+
+/**
+ * struct clk_branch - gating clock with status bit and dynamic hardware gating
+ *
+ * @hwcg_reg: dynamic hardware clock gating register
+ * @hwcg_bit: ORed with @hwcg_reg to enable dynamic hardware clock gating
+ * @halt_reg: halt register
+ * @halt_bit: ANDed with @halt_reg to test for clock halted
+ * @halt_check: type of halt checking to perform
+ * @clkr: handle between common and hardware-specific interfaces
+ *
+ * Clock which can gate its output.
+ */
+struct clk_branch {
+ u32 hwcg_reg;
+ u32 halt_reg;
+ u8 hwcg_bit;
+ u8 halt_bit;
+ u8 halt_check;
+#define BRANCH_VOTED BIT(7) /* Delay on disable */
+#define BRANCH_HALT 0 /* pol: 1 = halt */
+#define BRANCH_HALT_VOTED (BRANCH_HALT | BRANCH_VOTED)
+#define BRANCH_HALT_ENABLE 1 /* pol: 0 = halt */
+#define BRANCH_HALT_ENABLE_VOTED (BRANCH_HALT_ENABLE | BRANCH_VOTED)
+#define BRANCH_HALT_DELAY 2 /* No bit to check; just delay */
+#define BRANCH_HALT_SKIP 3 /* Don't check halt bit */
+
+ struct clk_regmap clkr;
+};
+
+extern const struct clk_ops clk_branch_ops;
+extern const struct clk_ops clk_branch2_ops;
+extern const struct clk_ops clk_branch_simple_ops;
+extern const struct clk_ops clk_branch2_aon_ops;
+
+#define to_clk_branch(_hw) \
+ container_of(to_clk_regmap(_hw), struct clk_branch, clkr)
+
+#endif