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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/clk/sunxi-ng/ccu_common.h
parentInitial commit. (diff)
downloadlinux-upstream.tar.xz
linux-upstream.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--drivers/clk/sunxi-ng/ccu_common.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_common.h b/drivers/clk/sunxi-ng/ccu_common.h
new file mode 100644
index 000000000..fbf16c6b8
--- /dev/null
+++ b/drivers/clk/sunxi-ng/ccu_common.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2016 Maxime Ripard. All rights reserved.
+ */
+
+#ifndef _COMMON_H_
+#define _COMMON_H_
+
+#include <linux/compiler.h>
+#include <linux/clk-provider.h>
+
+#define CCU_FEATURE_FRACTIONAL BIT(0)
+#define CCU_FEATURE_VARIABLE_PREDIV BIT(1)
+#define CCU_FEATURE_FIXED_PREDIV BIT(2)
+#define CCU_FEATURE_FIXED_POSTDIV BIT(3)
+#define CCU_FEATURE_ALL_PREDIV BIT(4)
+#define CCU_FEATURE_LOCK_REG BIT(5)
+#define CCU_FEATURE_MMC_TIMING_SWITCH BIT(6)
+#define CCU_FEATURE_SIGMA_DELTA_MOD BIT(7)
+#define CCU_FEATURE_KEY_FIELD BIT(8)
+
+/* MMC timing mode switch bit */
+#define CCU_MMC_NEW_TIMING_MODE BIT(30)
+
+struct device_node;
+
+struct ccu_common {
+ void __iomem *base;
+ u16 reg;
+ u16 lock_reg;
+ u32 prediv;
+
+ unsigned long features;
+ spinlock_t *lock;
+ struct clk_hw hw;
+};
+
+static inline struct ccu_common *hw_to_ccu_common(struct clk_hw *hw)
+{
+ return container_of(hw, struct ccu_common, hw);
+}
+
+struct sunxi_ccu_desc {
+ struct ccu_common **ccu_clks;
+ unsigned long num_ccu_clks;
+
+ struct clk_hw_onecell_data *hw_clks;
+
+ struct ccu_reset_map *resets;
+ unsigned long num_resets;
+};
+
+void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock);
+
+struct ccu_pll_nb {
+ struct notifier_block clk_nb;
+ struct ccu_common *common;
+
+ u32 enable;
+ u32 lock;
+};
+
+#define to_ccu_pll_nb(_nb) container_of(_nb, struct ccu_pll_nb, clk_nb)
+
+int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb);
+
+int devm_sunxi_ccu_probe(struct device *dev, void __iomem *reg,
+ const struct sunxi_ccu_desc *desc);
+void of_sunxi_ccu_probe(struct device_node *node, void __iomem *reg,
+ const struct sunxi_ccu_desc *desc);
+
+#endif /* _COMMON_H_ */