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Index: sys/dev/extres/clk/clk.h
===================================================================
--- sys/dev/extres/clk/clk.h
+++ sys/dev/extres/clk/clk.h
@@ -112,6 +112,7 @@
device_t clknode_get_device(struct clknode *clk);
struct clknode *clknode_find_by_name(const char *name);
struct clknode *clknode_find_by_id(struct clkdom *clkdom, intptr_t id);
+int clknode_list_freq(struct clknode *clknode, uint64_t *freq, int *freq_count);
int clknode_get_freq(struct clknode *clknode, uint64_t *freq);
int clknode_set_freq(struct clknode *clknode, uint64_t freq, int flags,
int enablecnt);
@@ -127,6 +128,7 @@
int clk_get_by_name(device_t dev, const char *name, clk_t *clk);
int clk_get_by_id(device_t dev, struct clkdom *clkdom, intptr_t id, clk_t *clk);
int clk_release(clk_t clk);
+int clk_list_freq(clk_t clk, uint64_t *freq, int *freq_count);
int clk_get_freq(clk_t clk, uint64_t *freq);
int clk_set_freq(clk_t clk, uint64_t freq, int flags);
int clk_test_freq(clk_t clk, uint64_t freq, int flags);
Index: sys/dev/extres/clk/clk.c
===================================================================
--- sys/dev/extres/clk/clk.c
+++ sys/dev/extres/clk/clk.c
@@ -65,6 +65,8 @@
/* Default clock methods. */
static int clknode_method_init(struct clknode *clk, device_t dev);
+static int clknode_method_list_freq(struct clknode *clknode, uint64_t *freq,
+ int *count);
static int clknode_method_recalc_freq(struct clknode *clk, uint64_t *freq);
static int clknode_method_set_freq(struct clknode *clk, uint64_t fin,
uint64_t *fout, int flags, int *stop);
@@ -76,6 +78,7 @@
*/
static clknode_method_t clknode_methods[] = {
CLKNODEMETHOD(clknode_init, clknode_method_init),
+ CLKNODEMETHOD(clknode_list_freq, clknode_method_list_freq),
CLKNODEMETHOD(clknode_recalc_freq, clknode_method_recalc_freq),
CLKNODEMETHOD(clknode_set_freq, clknode_method_set_freq),
CLKNODEMETHOD(clknode_set_gate, clknode_method_set_gate),
@@ -205,6 +208,13 @@
return (0);
}
+static int
+clknode_method_list_freq(struct clknode *clknode, uint64_t *freq, int *count)
+{
+
+ return (0);
+}
+
static int
clknode_method_recalc_freq(struct clknode *clknode, uint64_t *freq)
{
@@ -929,6 +939,20 @@
/*
* Real consumers executive
*/
+int
+clknode_list_freq(struct clknode *clknode, uint64_t *freq, int *freq_count)
+{
+ int rv;
+
+ CLK_TOPO_ASSERT();
+
+ CLKNODE_XLOCK(clknode);
+ rv = CLKNODE_LIST_FREQ(clknode, freq, freq_count);
+ CLKNODE_UNLOCK(clknode);
+
+ return (rv);
+}
+
int
clknode_get_freq(struct clknode *clknode, uint64_t *freq)
{
@@ -1186,6 +1210,20 @@
return (rv);
}
+int
+clk_list_freq(clk_t clk, uint64_t *freq, int *freq_count)
+{
+ int rv;
+ struct clknode *clknode;
+
+ clknode = clk->clknode;
+
+ CLK_TOPO_XLOCK();
+ rv = clknode_list_freq(clknode, freq, freq_count);
+ CLK_TOPO_UNLOCK();
+ return (rv);
+}
+
int
clk_set_freq(clk_t clk, uint64_t freq, int flags)
{
Index: sys/dev/extres/clk/clknode_if.m
===================================================================
--- sys/dev/extres/clk/clknode_if.m
+++ sys/dev/extres/clk/clknode_if.m
@@ -40,6 +40,15 @@
device_t dev;
};
+#
+# List all possible frequencies.
+#
+METHOD int list_freq {
+ struct clknode *clk;
+ uint64_t *freq;
+ int *freq_count;
+};
+
#
# Recalculate frequency
# req - in/out recalulated frequency

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