Messages in this thread Patch in this message | | | From | Hsin-Yi Wang <> | Subject | [PATCH v2] drm/bridge: anx7625: Fix power on delay | Date | Wed, 28 Apr 2021 19:51:16 +0800 |
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From anx7625 spec, the delay between powering on power supplies and gpio should be larger than 10ms.
Fixes: 6c744983004e ("drm/bridge: anx7625: disable regulators when power off") Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> --- v1->v2: Extend sleep range a bit as the regulator on some device takes more time to be powered on after regulator_enable() is called. --- drivers/gpu/drm/bridge/analogix/anx7625.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 23283ba0c4f9..b4e349ca38fe 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -893,7 +893,7 @@ static void anx7625_power_on(struct anx7625_data *ctx) usleep_range(2000, 2100); } - usleep_range(4000, 4100); + usleep_range(11000, 12000); /* Power on pin enable */ gpiod_set_value(ctx->pdata.gpio_p_on, 1); -- 2.31.1.498.g6c1eba8ee3d-goog
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