mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 14:43:58 +08:00
7fef917ba8
With commit 4178bac4f {ARM: call of_clk_init from default time_init
handler}, of_clk_init() is always called on machines using default
time_init handler.
So drop the of_clk_init() from keystone code to avoid below
boot errors because of double call.
_of_pll_clk_init: error initializing pll mainpllclk
_of_pll_clk_init: error initializing pll papllclk
_of_pll_clk_init: error initializing pll ddr3apllclk
_of_pll_clk_init: error initializing pll ddr3bpllclk
_of_pll_clk_init: error initializing pll armpllclk
Reported-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
81 lines
1.7 KiB
C
81 lines
1.7 KiB
C
/*
|
|
* PM domain driver for Keystone2 devices
|
|
*
|
|
* Copyright 2013 Texas Instruments, Inc.
|
|
* Santosh Shilimkar <santosh.shillimkar@ti.com>
|
|
*
|
|
* Based on Kevins work on DAVINCI SOCs
|
|
* Kevin Hilman <khilman@linaro.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/pm_runtime.h>
|
|
#include <linux/pm_clock.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/clk-provider.h>
|
|
#include <linux/of.h>
|
|
|
|
#ifdef CONFIG_PM_RUNTIME
|
|
static int keystone_pm_runtime_suspend(struct device *dev)
|
|
{
|
|
int ret;
|
|
|
|
dev_dbg(dev, "%s\n", __func__);
|
|
|
|
ret = pm_generic_runtime_suspend(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = pm_clk_suspend(dev);
|
|
if (ret) {
|
|
pm_generic_runtime_resume(dev);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int keystone_pm_runtime_resume(struct device *dev)
|
|
{
|
|
dev_dbg(dev, "%s\n", __func__);
|
|
|
|
pm_clk_resume(dev);
|
|
|
|
return pm_generic_runtime_resume(dev);
|
|
}
|
|
#endif
|
|
|
|
static struct dev_pm_domain keystone_pm_domain = {
|
|
.ops = {
|
|
SET_RUNTIME_PM_OPS(keystone_pm_runtime_suspend,
|
|
keystone_pm_runtime_resume, NULL)
|
|
USE_PLATFORM_PM_SLEEP_OPS
|
|
},
|
|
};
|
|
|
|
static struct pm_clk_notifier_block platform_domain_notifier = {
|
|
.pm_domain = &keystone_pm_domain,
|
|
};
|
|
|
|
static struct of_device_id of_keystone_table[] = {
|
|
{.compatible = "ti,keystone"},
|
|
{ /* end of list */ },
|
|
};
|
|
|
|
int __init keystone_pm_runtime_init(void)
|
|
{
|
|
struct device_node *np;
|
|
|
|
np = of_find_matching_node(NULL, of_keystone_table);
|
|
if (!np)
|
|
return 0;
|
|
|
|
pm_clk_add_notifier(&platform_bus_type, &platform_domain_notifier);
|
|
|
|
return 0;
|
|
}
|