[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/clk/pistachio/clk.c b/src/kernel/linux/v4.14/drivers/clk/pistachio/clk.c
new file mode 100644
index 0000000..698cad4
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/clk/pistachio/clk.c
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+
+#include "clk.h"
+
+struct pistachio_clk_provider *
+pistachio_clk_alloc_provider(struct device_node *node, unsigned int num_clks)
+{
+ struct pistachio_clk_provider *p;
+
+ p = kzalloc(sizeof(*p), GFP_KERNEL);
+ if (!p)
+ return p;
+
+ p->clk_data.clks = kcalloc(num_clks, sizeof(struct clk *), GFP_KERNEL);
+ if (!p->clk_data.clks)
+ goto free_provider;
+ p->clk_data.clk_num = num_clks;
+ p->node = node;
+ p->base = of_iomap(node, 0);
+ if (!p->base) {
+ pr_err("Failed to map clock provider registers\n");
+ goto free_clks;
+ }
+
+ return p;
+
+free_clks:
+ kfree(p->clk_data.clks);
+free_provider:
+ kfree(p);
+ return NULL;
+}
+
+void pistachio_clk_register_provider(struct pistachio_clk_provider *p)
+{
+ unsigned int i;
+
+ for (i = 0; i < p->clk_data.clk_num; i++) {
+ if (IS_ERR(p->clk_data.clks[i]))
+ pr_warn("Failed to register clock %d: %ld\n", i,
+ PTR_ERR(p->clk_data.clks[i]));
+ }
+
+ of_clk_add_provider(p->node, of_clk_src_onecell_get, &p->clk_data);
+}
+
+void pistachio_clk_register_gate(struct pistachio_clk_provider *p,
+ struct pistachio_gate *gate,
+ unsigned int num)
+{
+ struct clk *clk;
+ unsigned int i;
+
+ for (i = 0; i < num; i++) {
+ clk = clk_register_gate(NULL, gate[i].name, gate[i].parent,
+ CLK_SET_RATE_PARENT,
+ p->base + gate[i].reg, gate[i].shift,
+ 0, NULL);
+ p->clk_data.clks[gate[i].id] = clk;
+ }
+}
+
+void pistachio_clk_register_mux(struct pistachio_clk_provider *p,
+ struct pistachio_mux *mux,
+ unsigned int num)
+{
+ struct clk *clk;
+ unsigned int i;
+
+ for (i = 0; i < num; i++) {
+ clk = clk_register_mux(NULL, mux[i].name, mux[i].parents,
+ mux[i].num_parents,
+ CLK_SET_RATE_NO_REPARENT,
+ p->base + mux[i].reg, mux[i].shift,
+ get_count_order(mux[i].num_parents),
+ 0, NULL);
+ p->clk_data.clks[mux[i].id] = clk;
+ }
+}
+
+void pistachio_clk_register_div(struct pistachio_clk_provider *p,
+ struct pistachio_div *div,
+ unsigned int num)
+{
+ struct clk *clk;
+ unsigned int i;
+
+ for (i = 0; i < num; i++) {
+ clk = clk_register_divider(NULL, div[i].name, div[i].parent,
+ 0, p->base + div[i].reg, 0,
+ div[i].width, div[i].div_flags,
+ NULL);
+ p->clk_data.clks[div[i].id] = clk;
+ }
+}
+
+void pistachio_clk_register_fixed_factor(struct pistachio_clk_provider *p,
+ struct pistachio_fixed_factor *ff,
+ unsigned int num)
+{
+ struct clk *clk;
+ unsigned int i;
+
+ for (i = 0; i < num; i++) {
+ clk = clk_register_fixed_factor(NULL, ff[i].name, ff[i].parent,
+ 0, 1, ff[i].div);
+ p->clk_data.clks[ff[i].id] = clk;
+ }
+}
+
+void pistachio_clk_force_enable(struct pistachio_clk_provider *p,
+ unsigned int *clk_ids, unsigned int num)
+{
+ unsigned int i;
+ int err;
+
+ for (i = 0; i < num; i++) {
+ struct clk *clk = p->clk_data.clks[clk_ids[i]];
+
+ if (IS_ERR(clk))
+ continue;
+
+ err = clk_prepare_enable(clk);
+ if (err)
+ pr_err("Failed to enable clock %s: %d\n",
+ __clk_get_name(clk), err);
+ }
+}