mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-02 23:36:43 +07:00
9a3e89b10f
By default the VPSS clocks were enabled in capture driver for davinci family which creates duplicates for dm355/dm365/dm644x. This patch adds support to enable the VPSS clocks in VPSS driver, which avoids duplication of code and also adding clock aliases. This patch uses PM runtime API to enable/disable clock, instead of DaVinci clock framework. con_ids for master and slave clocks of vpss is added in pm_domain. This patch cleanups the VPSS clock enabling in the capture driver, and also removes the clock alias in machine file. Along side adds a vpss slave clock for DM365 as mentioned by Sekhar (https://patchwork.kernel.org/patch/1221261/). The Suspend/Resume in dm644x_ccdc.c which enabled/disabled the VPSS clock is now implemented as part of the VPSS driver. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/*
|
|
* Runtime PM support code for DaVinci
|
|
*
|
|
* Author: Kevin Hilman
|
|
*
|
|
* Copyright (C) 2012 Texas Instruments, Inc.
|
|
*
|
|
* This file is licensed under the terms of the GNU General Public
|
|
* License version 2. This program is licensed "as is" without any
|
|
* warranty of any kind, whether express or implied.
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/pm_runtime.h>
|
|
#include <linux/pm_clock.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#ifdef CONFIG_PM_RUNTIME
|
|
static int davinci_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 davinci_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 davinci_pm_domain = {
|
|
.ops = {
|
|
SET_RUNTIME_PM_OPS(davinci_pm_runtime_suspend,
|
|
davinci_pm_runtime_resume, NULL)
|
|
USE_PLATFORM_PM_SLEEP_OPS
|
|
},
|
|
};
|
|
|
|
static struct pm_clk_notifier_block platform_bus_notifier = {
|
|
.pm_domain = &davinci_pm_domain,
|
|
.con_ids = { "fck", "master", "slave", NULL },
|
|
};
|
|
|
|
static int __init davinci_pm_runtime_init(void)
|
|
{
|
|
pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
|
|
|
|
return 0;
|
|
}
|
|
core_initcall(davinci_pm_runtime_init);
|