From f79d320ffaf9010946cde7945016bd6063499f61 Mon Sep 17 00:00:00 2001 From: Lu Hui Date: Mon, 25 Dec 2023 16:53:41 +0800 Subject: [PATCH] drivers: video: ilitek-ili9881c.c: add long delay panel reset --- drivers/video/ilitek-ili9881c.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/video/ilitek-ili9881c.c b/drivers/video/ilitek-ili9881c.c index 84c0dcd6..61ba4bae 100644 --- a/drivers/video/ilitek-ili9881c.c +++ b/drivers/video/ilitek-ili9881c.c @@ -368,12 +368,12 @@ static int ili9881c_panel_prepare(struct udevice *panel) ret = dm_gpio_set_value(&priv->reset, true); if (ret) return ret; - mdelay(1); + mdelay(500); ret = dm_gpio_set_value(&priv->reset, false); if (ret) return ret; - mdelay(10); + mdelay(100); return 0; } @@ -464,6 +464,20 @@ static int ili9881c_panel_ofdata_to_platdata(struct udevice *dev) dev_err(dev, "Warning: cannot get reset GPIO\n"); if (ret != -ENOENT) return ret; + } else { + /* not a bug, but uboot's regulator is buggy, + I haven't more time to fix it, so put it here + */ + /* reset panel */ + ret = dm_gpio_set_value(&priv->reset, false); + if (ret) + return ret; + mdelay(100); + + ret = dm_gpio_set_value(&priv->reset, true); + if (ret) + return ret; + mdelay(100); } /* power gpios */ -- 2.34.1