Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 78 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 0000000000..942a72c094
--- /dev/null
+++ b/drivers/clk/sunxi-ng/ccu_common.h
@@ -0,0 +1,78 @@
+/* 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)
+#define CCU_FEATURE_CLOSEST_RATE	BIT(9)
+
+/* 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);
+
+bool ccu_is_better_rate(struct ccu_common *common,
+			unsigned long target_rate,
+			unsigned long current_rate,
+			unsigned long best_rate);
+
+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_ */