[PATCH 6.1 193/473] drm/panel-samsung-atna33xc20: Use ktime_get_boottime for delays

Greg Kroah-Hartman
2024-06-06T14:15:13Z

From: Drew Davenport <ddavenport@chromium.org>

[ Upstream commit 62e43673ca84a68cc06dcaa9337a06df7f79fef9 ]

ktime_get_boottime continues while the device is suspended. This change
ensures that the resume path will not be delayed if the power off delay
has already been met while the device is suspended

Signed-off-by: Drew Davenport <ddavenport@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221117133655.2.Iebd9f79aba0a62015fd2383fe6986c2d6fe12cfd@changeid
Stable-dep-of: 5e842d55bad7 ("drm/panel: atna33xc20: Fix unbalanced regulator in the case HPD doesn't assert")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/panel/panel-samsung-atna33xc20.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c b/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
index 5a8b978c64158..f4616f0367846 100644
--- a/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
+++ b/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
@@ -53,7 +53,7 @@ static void atana33xc20_wait(ktime_t start_ktime, unsigned int min_ms)
ktime_t now_ktime, min_ktime;

min_ktime = ktime_add(start_ktime, ms_to_ktime(min_ms));
- now_ktime = ktime_get();
+ now_ktime = ktime_get_boottime();

if (ktime_before(now_ktime, min_ktime))
msleep(ktime_to_ms(ktime_sub(min_ktime, now_ktime)) + 1);
@@ -75,7 +75,7 @@ static int atana33xc20_suspend(struct device *dev)
ret = regulator_disable(p->supply);
if (ret)
return ret;
- p->powered_off_time = ktime_get();
+ p->powered_off_time = ktime_get_boottime();
p->el3_was_on = false;

return 0;
@@ -93,7 +93,7 @@ static int atana33xc20_resume(struct device *dev)
ret = regulator_enable(p->supply);
if (ret)
return ret;
- p->powered_on_time = ktime_get();
+ p->powered_on_time = ktime_get_boottime();

if (p->no_hpd) {
msleep(HPD_MAX_MS);
@@ -142,7 +142,7 @@ static int atana33xc20_disable(struct drm_panel *panel)
return 0;

gpiod_set_value_cansleep(p->el_on3_gpio, 0);
- p->el_on3_off_time = ktime_get();
+ p->el_on3_off_time = ktime_get_boottime();
p->enabled = false;

/*
--
2.43.0