Merge tag 'clk-hisi' of https://git.kernel.org/pub/scm/linux/kernel/git/hzhuang1/linux into clk-next-hisilcon
updating clock drivers for Hisilicon
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 48a7ef3..b5221b7 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -31,6 +31,7 @@
obj-$(CONFIG_COMMON_CLK_XGENE) += clk-xgene.o
obj-$(CONFIG_COMMON_CLK_AT91) += at91/
obj-$(CONFIG_ARCH_HI3xxx) += hisilicon/
+obj-$(CONFIG_ARCH_HIP04) += hisilicon/
obj-$(CONFIG_COMMON_CLK_KEYSTONE) += keystone/
ifeq ($(CONFIG_COMMON_CLK), y)
obj-$(CONFIG_ARCH_MMP) += mmp/
diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile
index a049108..40b33c6 100644
--- a/drivers/clk/hisilicon/Makefile
+++ b/drivers/clk/hisilicon/Makefile
@@ -2,4 +2,7 @@
# Hisilicon Clock specific Makefile
#
-obj-y += clk.o clkgate-separated.o clk-hi3620.o
+obj-y += clk.o clkgate-separated.o
+
+obj-$(CONFIG_ARCH_HI3xxx) += clk-hi3620.o
+obj-$(CONFIG_ARCH_HIP04) += clk-hip04.o
diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c
index 38faa469..233eba2 100644
--- a/drivers/clk/hisilicon/clk-hi3620.c
+++ b/drivers/clk/hisilicon/clk-hi3620.c
@@ -210,34 +210,25 @@
static void __init hi3620_clk_init(struct device_node *np)
{
- void __iomem *base;
+ struct hisi_clock_data *clk_data;
- if (np) {
- base = of_iomap(np, 0);
- if (!base) {
- pr_err("failed to map Hi3620 clock registers\n");
- return;
- }
- } else {
- pr_err("failed to find Hi3620 clock node in DTS\n");
+ clk_data = hisi_clk_init(np, HI3620_NR_CLKS);
+ if (!clk_data)
return;
- }
-
- hisi_clk_init(np, HI3620_NR_CLKS);
hisi_clk_register_fixed_rate(hi3620_fixed_rate_clks,
ARRAY_SIZE(hi3620_fixed_rate_clks),
- base);
+ clk_data);
hisi_clk_register_fixed_factor(hi3620_fixed_factor_clks,
ARRAY_SIZE(hi3620_fixed_factor_clks),
- base);
+ clk_data);
hisi_clk_register_mux(hi3620_mux_clks, ARRAY_SIZE(hi3620_mux_clks),
- base);
+ clk_data);
hisi_clk_register_divider(hi3620_div_clks, ARRAY_SIZE(hi3620_div_clks),
- base);
+ clk_data);
hisi_clk_register_gate_sep(hi3620_seperated_gate_clks,
ARRAY_SIZE(hi3620_seperated_gate_clks),
- base);
+ clk_data);
}
CLK_OF_DECLARE(hi3620_clk, "hisilicon,hi3620-clock", hi3620_clk_init);
diff --git a/drivers/clk/hisilicon/clk-hip04.c b/drivers/clk/hisilicon/clk-hip04.c
new file mode 100644
index 0000000..132b57a
--- /dev/null
+++ b/drivers/clk/hisilicon/clk-hip04.c
@@ -0,0 +1,58 @@
+/*
+ * Hisilicon HiP04 clock driver
+ *
+ * Copyright (c) 2013-2014 Hisilicon Limited.
+ * Copyright (c) 2013-2014 Linaro Limited.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+
+#include <dt-bindings/clock/hip04-clock.h>
+
+#include "clk.h"
+
+/* fixed rate clocks */
+static struct hisi_fixed_rate_clock hip04_fixed_rate_clks[] __initdata = {
+ { HIP04_OSC50M, "osc50m", NULL, CLK_IS_ROOT, 50000000, },
+ { HIP04_CLK_50M, "clk50m", NULL, CLK_IS_ROOT, 50000000, },
+ { HIP04_CLK_168M, "clk168m", NULL, CLK_IS_ROOT, 168750000, },
+};
+
+static void __init hip04_clk_init(struct device_node *np)
+{
+ struct hisi_clock_data *clk_data;
+
+ clk_data = hisi_clk_init(np, HIP04_NR_CLKS);
+ if (!clk_data)
+ return;
+
+ hisi_clk_register_fixed_rate(hip04_fixed_rate_clks,
+ ARRAY_SIZE(hip04_fixed_rate_clks),
+ clk_data);
+}
+CLK_OF_DECLARE(hip04_clk, "hisilicon,hip04-clock", hip04_clk_init);
diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c
index a3a7152..276f672 100644
--- a/drivers/clk/hisilicon/clk.c
+++ b/drivers/clk/hisilicon/clk.c
@@ -37,23 +37,49 @@
#include "clk.h"
static DEFINE_SPINLOCK(hisi_clk_lock);
-static struct clk **clk_table;
-static struct clk_onecell_data clk_data;
-void __init hisi_clk_init(struct device_node *np, int nr_clks)
+struct hisi_clock_data __init *hisi_clk_init(struct device_node *np,
+ int nr_clks)
{
+ struct hisi_clock_data *clk_data;
+ struct clk **clk_table;
+ void __iomem *base;
+
+ if (np) {
+ base = of_iomap(np, 0);
+ if (!base) {
+ pr_err("failed to map Hisilicon clock registers\n");
+ goto err;
+ }
+ } else {
+ pr_err("failed to find Hisilicon clock node in DTS\n");
+ goto err;
+ }
+
+ clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL);
+ if (!clk_data) {
+ pr_err("%s: could not allocate clock data\n", __func__);
+ goto err;
+ }
+ clk_data->base = base;
+
clk_table = kzalloc(sizeof(struct clk *) * nr_clks, GFP_KERNEL);
if (!clk_table) {
pr_err("%s: could not allocate clock lookup table\n", __func__);
- return;
+ goto err_data;
}
- clk_data.clks = clk_table;
- clk_data.clk_num = nr_clks;
- of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+ clk_data->clk_data.clks = clk_table;
+ clk_data->clk_data.clk_num = nr_clks;
+ of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data->clk_data);
+ return clk_data;
+err_data:
+ kfree(clk_data);
+err:
+ return NULL;
}
void __init hisi_clk_register_fixed_rate(struct hisi_fixed_rate_clock *clks,
- int nums, void __iomem *base)
+ int nums, struct hisi_clock_data *data)
{
struct clk *clk;
int i;
@@ -68,11 +94,13 @@
__func__, clks[i].name);
continue;
}
+ data->clk_data.clks[clks[i].id] = clk;
}
}
void __init hisi_clk_register_fixed_factor(struct hisi_fixed_factor_clock *clks,
- int nums, void __iomem *base)
+ int nums,
+ struct hisi_clock_data *data)
{
struct clk *clk;
int i;
@@ -87,13 +115,15 @@
__func__, clks[i].name);
continue;
}
+ data->clk_data.clks[clks[i].id] = clk;
}
}
void __init hisi_clk_register_mux(struct hisi_mux_clock *clks,
- int nums, void __iomem *base)
+ int nums, struct hisi_clock_data *data)
{
struct clk *clk;
+ void __iomem *base = data->base;
int i;
for (i = 0; i < nums; i++) {
@@ -111,14 +141,15 @@
if (clks[i].alias)
clk_register_clkdev(clk, clks[i].alias, NULL);
- clk_table[clks[i].id] = clk;
+ data->clk_data.clks[clks[i].id] = clk;
}
}
void __init hisi_clk_register_divider(struct hisi_divider_clock *clks,
- int nums, void __iomem *base)
+ int nums, struct hisi_clock_data *data)
{
struct clk *clk;
+ void __iomem *base = data->base;
int i;
for (i = 0; i < nums; i++) {
@@ -139,14 +170,15 @@
if (clks[i].alias)
clk_register_clkdev(clk, clks[i].alias, NULL);
- clk_table[clks[i].id] = clk;
+ data->clk_data.clks[clks[i].id] = clk;
}
}
void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *clks,
- int nums, void __iomem *base)
+ int nums, struct hisi_clock_data *data)
{
struct clk *clk;
+ void __iomem *base = data->base;
int i;
for (i = 0; i < nums; i++) {
@@ -166,6 +198,6 @@
if (clks[i].alias)
clk_register_clkdev(clk, clks[i].alias, NULL);
- clk_table[clks[i].id] = clk;
+ data->clk_data.clks[clks[i].id] = clk;
}
}
diff --git a/drivers/clk/hisilicon/clk.h b/drivers/clk/hisilicon/clk.h
index 4a6beeb..43fa5da 100644
--- a/drivers/clk/hisilicon/clk.h
+++ b/drivers/clk/hisilicon/clk.h
@@ -30,6 +30,11 @@
#include <linux/io.h>
#include <linux/spinlock.h>
+struct hisi_clock_data {
+ struct clk_onecell_data clk_data;
+ void __iomem *base;
+};
+
struct hisi_fixed_rate_clock {
unsigned int id;
char *name;
@@ -89,15 +94,15 @@
void __iomem *, u8,
u8, spinlock_t *);
-void __init hisi_clk_init(struct device_node *, int);
+struct hisi_clock_data __init *hisi_clk_init(struct device_node *, int);
void __init hisi_clk_register_fixed_rate(struct hisi_fixed_rate_clock *,
- int, void __iomem *);
+ int, struct hisi_clock_data *);
void __init hisi_clk_register_fixed_factor(struct hisi_fixed_factor_clock *,
- int, void __iomem *);
+ int, struct hisi_clock_data *);
void __init hisi_clk_register_mux(struct hisi_mux_clock *, int,
- void __iomem *);
+ struct hisi_clock_data *);
void __init hisi_clk_register_divider(struct hisi_divider_clock *,
- int, void __iomem *);
+ int, struct hisi_clock_data *);
void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *,
- int, void __iomem *);
+ int, struct hisi_clock_data *);
#endif /* __HISI_CLK_H */
diff --git a/include/dt-bindings/clock/hip04-clock.h b/include/dt-bindings/clock/hip04-clock.h
new file mode 100644
index 0000000..695e61c
--- /dev/null
+++ b/include/dt-bindings/clock/hip04-clock.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2013-2014 Hisilicon Limited.
+ * Copyright (c) 2013-2014 Linaro Limited.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef __DTS_HIP04_CLOCK_H
+#define __DTS_HIP04_CLOCK_H
+
+#define HIP04_NONE_CLOCK 0
+
+/* fixed rate & fixed factor clocks */
+#define HIP04_OSC50M 1
+#define HIP04_CLK_50M 2
+#define HIP04_CLK_168M 3
+
+#define HIP04_NR_CLKS 64
+
+#endif /* __DTS_HIP04_CLOCK_H */