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soc: rockchip: system_monitor: add ddr devfreq callback for eink

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Signed-off-by: Jianhui Wang <wjh@rock-chips.com>
Change-Id: I832be44e594942d854e75aca4e4075659e5c5fdc
This commit is contained in:
Jianhui Wang 2021-01-15 09:18:33 +08:00 committed by Tao Huang
parent a99d9117ce
commit 23de275f5e
1 changed files with 25 additions and 0 deletions
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25
drivers/soc/rockchip/rockchip_system_monitor.c
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@ -27,6 +27,8 @@
#include "../../opp/opp.h"
#include "../../devfreq/governor.h"
#include "../../gpu/drm/rockchip/ebc-dev/ebc_dev.h"
#define CPU_REBOOT_FREQ 816000 /* kHz */
#define VIDEO_1080P_SIZE (1920 * 1080)
#define THERMAL_POLLING_DELAY 200 /* milliseconds */
@ -1482,6 +1484,27 @@ static struct notifier_block rockchip_monitor_fb_nb = {
.notifier_call = rockchip_monitor_fb_notifier,
};
static int rockchip_eink_devfs_notifier(struct notifier_block *nb,
unsigned long action, void *ptr)
{
switch (action) {
case EBC_ON:
rockchip_clear_system_status(SYS_STATUS_LOW_POWER);
break;
case EBC_OFF:
rockchip_set_system_status(SYS_STATUS_LOW_POWER);
break;
default:
break;
}
return NOTIFY_OK;
}
static struct notifier_block rockchip_monitor_ebc_nb = {
.notifier_call = rockchip_eink_devfs_notifier,
};
static int rockchip_system_monitor_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@ -1525,6 +1548,8 @@ static int rockchip_system_monitor_probe(struct platform_device *pdev)
if (fb_register_client(&rockchip_monitor_fb_nb))
dev_err(dev, "failed to register fb nb\n");
ebc_register_notifier(&rockchip_monitor_ebc_nb);
dev_info(dev, "system monitor probe\n");
return 0;