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authorMaxime Ripard <maxime.ripard@free-electrons.com>2014-07-18 20:48:35 +0200
committerMaxime Ripard <maxime.ripard@free-electrons.com>2015-10-21 21:51:27 +0200
commit460d0d444822e9032a2573fc051b45c68b89a97a (patch)
tree1428651bfc2aec68811555d9155b0aa16eb66c2a /include
parentclk: Add a basic multiplier clock (diff)
downloadlinux-460d0d444822e9032a2573fc051b45c68b89a97a.tar.xz
linux-460d0d444822e9032a2573fc051b45c68b89a97a.zip
clk: sunxi: Add a driver for the PLL2
The PLL2 on the A10 and later SoCs is the clock used for all the audio related operations. This clock has a somewhat complex output tree, with three outputs (2X, 4X and 8X) with a fixed divider from the base clock, and an output (1X) with a post divider. However, we can simplify things since the 1X divider can be fixed, and we end up by having a base clock not exposed to any device (or at least directly, since the 4X output doesn't have any divider), and 4 fixed divider clocks that will be exposed. This clock seems to have been introduced, at least in this form, in the revision B of the A10, but we don't have any information on the clock used on the revision A. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Diffstat (limited to 'include')
-rw-r--r--include/dt-bindings/clock/sun4i-a10-pll2.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/include/dt-bindings/clock/sun4i-a10-pll2.h b/include/dt-bindings/clock/sun4i-a10-pll2.h
new file mode 100644
index 000000000000..071c8112d531
--- /dev/null
+++ b/include/dt-bindings/clock/sun4i-a10-pll2.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2015 Maxime Ripard
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file 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 file 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.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_SUN4I_A10_PLL2_H_
+#define __DT_BINDINGS_CLOCK_SUN4I_A10_PLL2_H_
+
+#define SUN4I_A10_PLL2_1X 0
+#define SUN4I_A10_PLL2_2X 1
+#define SUN4I_A10_PLL2_4X 2
+#define SUN4I_A10_PLL2_8X 3
+
+#endif /* __DT_BINDINGS_CLOCK_SUN4I_A10_PLL2_H_ */