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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Clock driver for TI Davinci PSC controllers4 *5 * Copyright (C) 2018 David Lechner <david@lechnology.com>6 */7 8#ifndef __CLK_DAVINCI_PSC_H__9#define __CLK_DAVINCI_PSC_H__10 11#include <linux/clk-provider.h>12#include <linux/types.h>13 14/* PSC quirk flags */15#define LPSC_ALWAYS_ENABLED BIT(0) /* never disable this clock */16#define LPSC_SET_RATE_PARENT BIT(1) /* propagate set_rate to parent clock */17#define LPSC_FORCE BIT(2) /* requires MDCTL FORCE bit */18#define LPSC_LOCAL_RESET BIT(3) /* acts as reset provider */19 20struct davinci_lpsc_clkdev_info {21 const char *con_id;22 const char *dev_id;23};24 25#define LPSC_CLKDEV(c, d) { \26 .con_id = (c), \27 .dev_id = (d) \28}29 30#define LPSC_CLKDEV1(n, c, d) \31static const struct davinci_lpsc_clkdev_info n[] __initconst = { \32 LPSC_CLKDEV((c), (d)), \33 { } \34}35 36#define LPSC_CLKDEV2(n, c1, d1, c2, d2) \37static const struct davinci_lpsc_clkdev_info n[] __initconst = { \38 LPSC_CLKDEV((c1), (d1)), \39 LPSC_CLKDEV((c2), (d2)), \40 { } \41}42 43#define LPSC_CLKDEV3(n, c1, d1, c2, d2, c3, d3) \44static const struct davinci_lpsc_clkdev_info n[] __initconst = { \45 LPSC_CLKDEV((c1), (d1)), \46 LPSC_CLKDEV((c2), (d2)), \47 LPSC_CLKDEV((c3), (d3)), \48 { } \49}50 51/**52 * davinci_lpsc_clk_info - LPSC module-specific clock information53 * @name: the clock name54 * @parent: the parent clock name55 * @cdevs: optional array of clkdev lookup table info56 * @md: the local module domain (LPSC id)57 * @pd: the power domain id58 * @flags: bitmask of LPSC_* flags59 */60struct davinci_lpsc_clk_info {61 const char *name;62 const char *parent;63 const struct davinci_lpsc_clkdev_info *cdevs;64 u32 md;65 u32 pd;66 unsigned long flags;67};68 69#define LPSC(m, d, n, p, c, f) \70{ \71 .name = #n, \72 .parent = #p, \73 .cdevs = (c), \74 .md = (m), \75 .pd = (d), \76 .flags = (f), \77}78 79int davinci_psc_register_clocks(struct device *dev,80 const struct davinci_lpsc_clk_info *info,81 u8 num_clks,82 void __iomem *base);83 84int of_davinci_psc_clk_init(struct device *dev,85 const struct davinci_lpsc_clk_info *info,86 u8 num_clks,87 void __iomem *base);88 89/* Device-specific data */90 91struct davinci_psc_init_data {92 struct clk_bulk_data *parent_clks;93 int num_parent_clks;94 int (*psc_init)(struct device *dev, void __iomem *base);95};96 97#ifdef CONFIG_ARCH_DAVINCI_DA83098extern const struct davinci_psc_init_data da830_psc0_init_data;99extern const struct davinci_psc_init_data da830_psc1_init_data;100#endif101#ifdef CONFIG_ARCH_DAVINCI_DA850102extern const struct davinci_psc_init_data da850_psc0_init_data;103extern const struct davinci_psc_init_data da850_psc1_init_data;104extern const struct davinci_psc_init_data of_da850_psc0_init_data;105extern const struct davinci_psc_init_data of_da850_psc1_init_data;106#endif107#endif /* __CLK_DAVINCI_PSC_H__ */108