Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2)  * TI clock autoidle support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * Copyright (C) 2013 Texas Instruments, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Tero Kristo <t-kristo@ti.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * it under the terms of the GNU General Public License version 2 as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  * published by the Free Software Foundation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  * This program is distributed "as is" WITHOUT ANY WARRANTY of any
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  * kind, whether express or implied; without even the implied warranty
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  * GNU General Public License for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/clk-provider.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/of_address.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <linux/clk/ti.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include "clock.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) struct clk_ti_autoidle {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	struct clk_omap_reg	reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	u8			shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	u8			flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	const char		*name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	struct list_head	node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define AUTOIDLE_LOW		0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) static LIST_HEAD(autoidle_clks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40)  * we have some non-atomic read/write
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41)  * operations behind it, so lets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42)  * take one lock for handling autoidle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43)  * of all clocks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) static DEFINE_SPINLOCK(autoidle_spinlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) static int _omap2_clk_deny_idle(struct clk_hw_omap *clk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	if (clk->ops && clk->ops->deny_idle) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		unsigned long irqflags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		spin_lock_irqsave(&autoidle_spinlock, irqflags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 		clk->autoidle_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 		if (clk->autoidle_count == 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 			clk->ops->deny_idle(clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 		spin_unlock_irqrestore(&autoidle_spinlock, irqflags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) static int _omap2_clk_allow_idle(struct clk_hw_omap *clk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	if (clk->ops && clk->ops->allow_idle) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 		unsigned long irqflags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		spin_lock_irqsave(&autoidle_spinlock, irqflags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		clk->autoidle_count--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 		if (clk->autoidle_count == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 			clk->ops->allow_idle(clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		spin_unlock_irqrestore(&autoidle_spinlock, irqflags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78)  * omap2_clk_deny_idle - disable autoidle on an OMAP clock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79)  * @clk: struct clk * to disable autoidle for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81)  * Disable autoidle on an OMAP clock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) int omap2_clk_deny_idle(struct clk *clk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	struct clk_hw *hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	if (!clk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	hw = __clk_get_hw(clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	if (omap2_clk_is_hw_omap(hw)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		struct clk_hw_omap *c = to_clk_hw_omap(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 		return _omap2_clk_deny_idle(c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)  * omap2_clk_allow_idle - enable autoidle on an OMAP clock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)  * @clk: struct clk * to enable autoidle for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)  * Enable autoidle on an OMAP clock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) int omap2_clk_allow_idle(struct clk *clk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	struct clk_hw *hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	if (!clk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	hw = __clk_get_hw(clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	if (omap2_clk_is_hw_omap(hw)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		struct clk_hw_omap *c = to_clk_hw_omap(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		return _omap2_clk_allow_idle(c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static void _allow_autoidle(struct clk_ti_autoidle *clk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	u32 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	val = ti_clk_ll_ops->clk_readl(&clk->reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	if (clk->flags & AUTOIDLE_LOW)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		val &= ~(1 << clk->shift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		val |= (1 << clk->shift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	ti_clk_ll_ops->clk_writel(val, &clk->reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) static void _deny_autoidle(struct clk_ti_autoidle *clk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	u32 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	val = ti_clk_ll_ops->clk_readl(&clk->reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	if (clk->flags & AUTOIDLE_LOW)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		val |= (1 << clk->shift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		val &= ~(1 << clk->shift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	ti_clk_ll_ops->clk_writel(val, &clk->reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)  * _clk_generic_allow_autoidle_all - enable autoidle for all clocks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)  * Enables hardware autoidle for all registered DT clocks, which have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)  * the feature.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static void _clk_generic_allow_autoidle_all(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	struct clk_ti_autoidle *c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	list_for_each_entry(c, &autoidle_clks, node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 		_allow_autoidle(c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)  * _clk_generic_deny_autoidle_all - disable autoidle for all clocks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)  * Disables hardware autoidle for all registered DT clocks, which have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)  * the feature.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static void _clk_generic_deny_autoidle_all(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	struct clk_ti_autoidle *c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	list_for_each_entry(c, &autoidle_clks, node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 		_deny_autoidle(c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)  * of_ti_clk_autoidle_setup - sets up hardware autoidle for a clock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)  * @node: pointer to the clock device node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)  * Checks if a clock has hardware autoidle support or not (check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)  * for presence of 'ti,autoidle-shift' property in the device tree
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)  * node) and sets up the hardware autoidle feature for the clock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)  * if available. If autoidle is available, the clock is also added
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)  * to the autoidle list for later processing. Returns 0 on success,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)  * negative error value on failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) int __init of_ti_clk_autoidle_setup(struct device_node *node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	u32 shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	struct clk_ti_autoidle *clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	/* Check if this clock has autoidle support or not */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	if (of_property_read_u32(node, "ti,autoidle-shift", &shift))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	clk = kzalloc(sizeof(*clk), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	if (!clk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	clk->shift = shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	clk->name = node->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	ret = ti_clk_get_reg_addr(node, 0, &clk->reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 		kfree(clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	if (of_property_read_bool(node, "ti,invert-autoidle-bit"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		clk->flags |= AUTOIDLE_LOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	list_add(&clk->node, &autoidle_clks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)  * omap2_clk_enable_autoidle_all - enable autoidle on all OMAP clocks that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)  * support it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)  * Enable clock autoidle on all OMAP clocks that have allow_idle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)  * function pointers associated with them.  This function is intended
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)  * to be temporary until support for this is added to the common clock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)  * code.  Returns 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) int omap2_clk_enable_autoidle_all(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	ret = omap2_clk_for_each(_omap2_clk_allow_idle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	_clk_generic_allow_autoidle_all();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)  * omap2_clk_disable_autoidle_all - disable autoidle on all OMAP clocks that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)  * support it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)  * Disable clock autoidle on all OMAP clocks that have allow_idle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)  * function pointers associated with them.  This function is intended
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)  * to be temporary until support for this is added to the common clock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)  * code.  Returns 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) int omap2_clk_disable_autoidle_all(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	ret = omap2_clk_for_each(_omap2_clk_deny_idle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	_clk_generic_deny_autoidle_all();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) }