You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
2.3 KiB
Diff
74 lines
2.3 KiB
Diff
From 9b95732096c11d84bd0082aed0d575d8c09e3ab6 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
|
|
Date: Fri, 18 Jul 2014 15:49:37 -0300
|
|
Subject: [PATCH] clk: sunxi: codec clock support
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
The codec clock on sun4i, sun5i and sun7i is a simple gate with PLL2 as
|
|
parent.
|
|
|
|
Signed-off-by: Emilio López <emilio@elopez.com.ar>
|
|
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
|
---
|
|
drivers/clk/sunxi/Makefile | 1 +
|
|
drivers/clk/sunxi/clk-a10-codec.c | 41 +++++++++++++++++++++++++++++++++++++++
|
|
2 files changed, 42 insertions(+)
|
|
create mode 100644 drivers/clk/sunxi/clk-a10-codec.c
|
|
|
|
--- a/drivers/clk/sunxi/Makefile
|
|
+++ b/drivers/clk/sunxi/Makefile
|
|
@@ -3,6 +3,7 @@
|
|
#
|
|
|
|
obj-y += clk-sunxi.o clk-factors.o
|
|
+obj-y += clk-a10-codec.o
|
|
obj-y += clk-a10-hosc.o
|
|
obj-y += clk-a10-pll2.o
|
|
obj-y += clk-a20-gmac.o
|
|
--- /dev/null
|
|
+++ b/drivers/clk/sunxi/clk-a10-codec.c
|
|
@@ -0,0 +1,41 @@
|
|
+/*
|
|
+ * Copyright 2013 Emilio López
|
|
+ *
|
|
+ * Emilio López <emilio@elopez.com.ar>
|
|
+ *
|
|
+ * 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.
|
|
+ */
|
|
+
|
|
+#include <linux/clk-provider.h>
|
|
+#include <linux/clkdev.h>
|
|
+#include <linux/of.h>
|
|
+#include <linux/of_address.h>
|
|
+
|
|
+#define SUN4I_CODEC_GATE 31
|
|
+
|
|
+static void __init sun4i_codec_clk_setup(struct device_node *node)
|
|
+{
|
|
+ struct clk *clk;
|
|
+ const char *clk_name = node->name, *parent_name;
|
|
+ void __iomem *reg;
|
|
+
|
|
+ of_property_read_string(node, "clock-output-names", &clk_name);
|
|
+ parent_name = of_clk_get_parent_name(node, 0);
|
|
+ reg = of_iomap(node, 0);
|
|
+
|
|
+ clk = clk_register_gate(NULL, clk_name, parent_name,
|
|
+ CLK_SET_RATE_PARENT, reg,
|
|
+ SUN4I_CODEC_GATE, 0, NULL);
|
|
+
|
|
+ if (!IS_ERR(clk))
|
|
+ of_clk_add_provider(node, of_clk_src_simple_get, clk);
|
|
+}
|
|
+CLK_OF_DECLARE(sun4i_codec, "allwinner,sun4i-a10-codec-clk", sun4i_codec_clk_setup);
|