On Tue, 7 Jun 2016 22:41:47 +0200 Maxime Ripard <[email protected]> wrote:
> Add support for the various dividers (linear, table or pow-of-two based) > found in the CCU. > > Signed-off-by: Maxime Ripard <[email protected]> > --- > drivers/clk/sunxi-ng/Makefile | 1 + > drivers/clk/sunxi-ng/ccu_div.c | 136 > +++++++++++++++++++++++++++++++++++++++++ > drivers/clk/sunxi-ng/ccu_div.h | 135 ++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 272 insertions(+) > create mode 100644 drivers/clk/sunxi-ng/ccu_div.c > create mode 100644 drivers/clk/sunxi-ng/ccu_div.h > > diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile > index c47cbd309d59..67a2559fe283 100644 > --- a/drivers/clk/sunxi-ng/Makefile > +++ b/drivers/clk/sunxi-ng/Makefile > @@ -3,6 +3,7 @@ obj-y += ccu_reset.o > > obj-y += ccu_frac.o > > +obj-y += ccu_div.o > obj-y += ccu_fixed_factor.o > obj-y += ccu_gate.o > obj-y += ccu_mux.o > diff --git a/drivers/clk/sunxi-ng/ccu_div.c b/drivers/clk/sunxi-ng/ccu_div.c > new file mode 100644 > index 000000000000..8659b4cb6c20 > --- /dev/null > +++ b/drivers/clk/sunxi-ng/ccu_div.c [snip] > diff --git a/drivers/clk/sunxi-ng/ccu_div.h b/drivers/clk/sunxi-ng/ccu_div.h > new file mode 100644 > index 000000000000..5edbdc1a98c8 > --- /dev/null > +++ b/drivers/clk/sunxi-ng/ccu_div.h > @@ -0,0 +1,135 @@ > +/* > + * Copyright (c) 2016 Maxime Ripard. All rights reserved. > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * 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. > + */ > + > +#ifndef _CCU_DIV_H_ > +#define _CCU_DIV_H_ > + > +#include <linux/clk-provider.h> > + > +#include "ccu_common.h" > +#include "ccu_mux.h" > + > +struct _ccu_div { > + u8 shift; > + u8 width; > + > + u32 flags; > + > + struct clk_div_table *table; > +}; > + > +#define _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, _table, _flags) \ > + { \ > + .shift = _shift, \ > + .width = _width, \ > + .flags = _flags, \ > + .table = _table, \ > + } > + > +#define _SUNXI_CCU_DIV_FLAGS(_shift, _width, _flags) \ > + _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, NULL, _flags) > + > +#define _SUNXI_CCU_DIV_TABLE(_shift, _width, _table) \ > + _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, _table, 0) > + > +#define _SUNXI_CCU_DIV(_shift, _width) > \ > + _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, NULL, 0) > + > +struct ccu_div { > + u32 enable; > + > + struct _ccu_div div; > + struct ccu_mux_internal mux; > + struct ccu_common common; > +}; > + > +#define SUNXI_CCU_DIV_TABLE_WITH_GATE(_struct, _name, _parent, _reg, \ > + _shift, _width, \ > + _table, _gate, _flags) \ > + struct ccu_div _struct = { \ The gate is missing .enable = _gate, (I was really afraid when I saw 217°C as the board temperature!) > + .div = _SUNXI_CCU_DIV_TABLE(_shift, _width, \ > + _table), \ > + .common = { \ > + .reg = _reg, \ > + .features = CCU_FEATURE_GATE, \ > + .hw.init = SUNXI_HW_INIT(_name, \ > + _parent, \ > + &ccu_div_ops, \ > + _flags), \ > + } \ > + } > + > + > +#define SUNXI_CCU_DIV_TABLE(_struct, _name, _parent, _reg, \ > + _shift, _width, \ > + _table, _flags) \ [snip] -- Ken ar c'hentañ | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/
