修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/drivers/clk/ti/mux.c
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@@ -91,10 +91,39 @@
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 	return 0;
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 }
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+/**
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+ * clk_mux_save_context - Save the parent selcted in the mux
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+ * @hw: pointer  struct clk_hw
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+ *
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+ * Save the parent mux value.
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+ */
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+static int clk_mux_save_context(struct clk_hw *hw)
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+{
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+	struct clk_omap_mux *mux = to_clk_omap_mux(hw);
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+
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+	mux->saved_parent = ti_clk_mux_get_parent(hw);
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+	return 0;
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+}
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+
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+/**
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+ * clk_mux_restore_context - Restore the parent in the mux
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+ * @hw: pointer  struct clk_hw
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+ *
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+ * Restore the saved parent mux value.
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+ */
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+static void clk_mux_restore_context(struct clk_hw *hw)
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+{
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+	struct clk_omap_mux *mux = to_clk_omap_mux(hw);
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+
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+	ti_clk_mux_set_parent(hw, mux->saved_parent);
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+}
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+
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 const struct clk_ops ti_clk_mux_ops = {
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 	.get_parent = ti_clk_mux_get_parent,
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 	.set_parent = ti_clk_mux_set_parent,
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 	.determine_rate = __clk_mux_determine_rate,
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+	.save_context = clk_mux_save_context,
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+	.restore_context = clk_mux_restore_context,
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 };
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 static struct clk *_register_mux(struct device *dev, const char *name,
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@@ -105,7 +134,7 @@
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 {
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 	struct clk_omap_mux *mux;
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 	struct clk *clk;
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-	struct clk_init_data init = {};
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+	struct clk_init_data init;
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138
 
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 	/* allocate the mux */
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 	mux = kzalloc(sizeof(*mux), GFP_KERNEL);
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@@ -114,7 +143,7 @@
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143
 
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 	init.name = name;
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 	init.ops = &ti_clk_mux_ops;
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-	init.flags = flags | CLK_IS_BASIC;
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+	init.flags = flags;
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 	init.parent_names = parent_names;
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 	init.num_parents = num_parents;
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149
 
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@@ -133,37 +162,6 @@
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 		kfree(mux);
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 	return clk;
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-}
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-
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-struct clk *ti_clk_register_mux(struct ti_clk *setup)
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-{
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-	struct ti_clk_mux *mux;
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-	u32 flags;
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-	u8 mux_flags = 0;
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-	struct clk_omap_reg reg;
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-	u32 mask;
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-
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-	mux = setup->data;
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-	flags = CLK_SET_RATE_NO_REPARENT;
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-
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-	mask = mux->num_parents;
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-	if (!(mux->flags & CLKF_INDEX_STARTS_AT_ONE))
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-		mask--;
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-
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-	mask = (1 << fls(mask)) - 1;
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-	reg.index = mux->module;
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-	reg.offset = mux->reg;
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-	reg.ptr = NULL;
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-
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-	if (mux->flags & CLKF_INDEX_STARTS_AT_ONE)
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-		mux_flags |= CLK_MUX_INDEX_ONE;
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-
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-	if (mux->flags & CLKF_SET_RATE_PARENT)
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-		flags |= CLK_SET_RATE_PARENT;
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-
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-	return _register_mux(NULL, setup->name, mux->parents, mux->num_parents,
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-			     flags, &reg, mux->bit_shift, mask, -EINVAL,
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-			     mux_flags, NULL);
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 }
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 /**
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@@ -186,7 +184,7 @@
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 	num_parents = of_clk_get_parent_count(node);
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 	if (num_parents < 2) {
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-		pr_err("mux-clock %s must have parents\n", node->name);
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+		pr_err("mux-clock %pOFn must have parents\n", node);
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 		return;
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 	}
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 	parent_names = kzalloc((sizeof(char *) * num_parents), GFP_KERNEL);
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@@ -278,7 +276,7 @@
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 	num_parents = of_clk_get_parent_count(node);
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 	if (num_parents < 2) {
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-		pr_err("%s must have parents\n", node->name);
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+		pr_err("%pOFn must have parents\n", node);
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 		goto cleanup;
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 	}
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