diff mbox series

[v1] drm/bridge: it6505: update usleep_range for RC circuit charge time

Message ID 20240604024405.1122488-1-kuro.chung@ite.com.tw (mailing list archive)
State Accepted
Headers show
Series [v1] drm/bridge: it6505: update usleep_range for RC circuit charge time | expand

Commit Message

kuro June 4, 2024, 2:44 a.m. UTC 
From: Kuro Chung <kuro.chung@ite.com.tw>

The spec of timing between IVDD/OVDD and SYSRTEN is 10ms, but SYSRSTN RC
circuit need at least 25ms for rising time, update for match spec

Signed-off-by: Kuro Chung <kuro.chung@ite.com.tw>
Signed-off-by: Hermes Wu <hermes.wu@ite.com.tw>
---
 drivers/gpu/drm/bridge/ite-it6505.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Robert Foss June 10, 2024, 2:40 p.m. UTC | #1 
On Tue, 4 Jun 2024 10:44:05 +0800, kuro wrote:
> From: Kuro Chung <kuro.chung@ite.com.tw>
> 
> The spec of timing between IVDD/OVDD and SYSRTEN is 10ms, but SYSRSTN RC
> circuit need at least 25ms for rising time, update for match spec
> 
> 

Applied, thanks!

[1/1] drm/bridge: it6505: update usleep_range for RC circuit charge time
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=8814444e62b8



Rob
diff mbox series

Patch

diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c
index cd1b5057ddfb4..1e1c06fdf2064 100644
--- a/drivers/gpu/drm/bridge/ite-it6505.c
+++ b/drivers/gpu/drm/bridge/ite-it6505.c
@@ -2615,7 +2615,7 @@  static int it6505_poweron(struct it6505 *it6505)
 		gpiod_set_value_cansleep(pdata->gpiod_reset, 0);
 		usleep_range(1000, 2000);
 		gpiod_set_value_cansleep(pdata->gpiod_reset, 1);
-		usleep_range(10000, 20000);
+		usleep_range(25000, 35000);
 	}
 
 	it6505->powered = true;