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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Clock driver for TI Davinci PSC controllers
*
* Copyright (C) 2018 David Lechner <david@lechnology.com>
*/
#ifndef __CLK_DAVINCI_PSC_H__
#define __CLK_DAVINCI_PSC_H__
#include <linux/clk-provider.h>
#include <linux/types.h>
/* PSC quirk flags */
#define LPSC_ALWAYS_ENABLED BIT(0) /* never disable this clock */
#define LPSC_SET_RATE_PARENT BIT(1) /* propagate set_rate to parent clock */
#define LPSC_FORCE BIT(2) /* requires MDCTL FORCE bit */
#define LPSC_LOCAL_RESET BIT(3) /* acts as reset provider */
struct davinci_lpsc_clkdev_info {
const char *con_id;
const char *dev_id;
};
#define LPSC_CLKDEV(c, d) { \
.con_id = (c), \
.dev_id = (d) \
}
#define LPSC_CLKDEV1(n, c, d) \
static const struct davinci_lpsc_clkdev_info n[] __initconst = { \
LPSC_CLKDEV((c), (d)), \
{ } \
}
#define LPSC_CLKDEV2(n, c1, d1, c2, d2) \
static const struct davinci_lpsc_clkdev_info n[] __initconst = { \
LPSC_CLKDEV((c1), (d1)), \
LPSC_CLKDEV((c2), (d2)), \
{ } \
}
#define LPSC_CLKDEV3(n, c1, d1, c2, d2, c3, d3) \
static const struct davinci_lpsc_clkdev_info n[] __initconst = { \
LPSC_CLKDEV((c1), (d1)), \
LPSC_CLKDEV((c2), (d2)), \
LPSC_CLKDEV((c3), (d3)), \
{ } \
}
/**
* davinci_lpsc_clk_info - LPSC module-specific clock information
* @name: the clock name
* @parent: the parent clock name
* @cdevs: optional array of clkdev lookup table info
* @md: the local module domain (LPSC id)
* @pd: the power domain id
* @flags: bitmask of LPSC_* flags
*/
struct davinci_lpsc_clk_info {
const char *name;
const char *parent;
const struct davinci_lpsc_clkdev_info *cdevs;
u32 md;
u32 pd;
unsigned long flags;
};
#define LPSC(m, d, n, p, c, f) \
{ \
.name = #n, \
.parent = #p, \
.cdevs = (c), \
.md = (m), \
.pd = (d), \
.flags = (f), \
}
int davinci_psc_register_clocks(struct device *dev,
const struct davinci_lpsc_clk_info *info,
u8 num_clks,
void __iomem *base);
int of_davinci_psc_clk_init(struct device *dev,
const struct davinci_lpsc_clk_info *info,
u8 num_clks,
void __iomem *base);
/* Device-specific data */
struct davinci_psc_init_data {
struct clk_bulk_data *parent_clks;
int num_parent_clks;
int (*psc_init)(struct device *dev, void __iomem *base);
};
#ifdef CONFIG_ARCH_DAVINCI_DA830
extern const struct davinci_psc_init_data da830_psc0_init_data;
extern const struct davinci_psc_init_data da830_psc1_init_data;
#endif
#ifdef CONFIG_ARCH_DAVINCI_DA850
extern const struct davinci_psc_init_data da850_psc0_init_data;
extern const struct davinci_psc_init_data da850_psc1_init_data;
extern const struct davinci_psc_init_data of_da850_psc0_init_data;
extern const struct davinci_psc_init_data of_da850_psc1_init_data;
#endif
#endif /* __CLK_DAVINCI_PSC_H__ */
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