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video/rk_eink: Only initilize the eink driver on the first time. 

This commit fix hardware without eink screen continue outputing
eink log during charging.

Signed-off-by: Wenping Zhang <wenping.zhang@rock-chips.com>
Change-Id: I1b14f0cd921342d1efb83dc72be6829a157be6d9
This commit is contained in:
Wenping Zhang 2020-12-16 09:33:16 +00:00 committed by Jianhong Chen
parent c6d7f8e4f0
commit 449de1d380
1 changed files with 12 additions and 5 deletions
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17
drivers/video/rk_eink/rk_eink_display.c
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@ -472,9 +472,16 @@ static int rockchip_eink_show_logo(int cur_logo_type, int update_mode)
struct udevice *dev;
if (!eink_dev) {
ret = rk_eink_display_init();
if (ret) {
printf("Get ebc dev failed, check dts configs\n");
static bool first_init = true;
if (first_init) {
first_init = false;
ret = rk_eink_display_init();
if (ret) {
printf("Get ebc dev failed, check dts\n");
return -ENODEV;
}
} else {
return -ENODEV;
}
}
@ -596,7 +603,7 @@ static int rockchip_eink_display_probe(struct udevice *dev)
ret = uclass_get_device_by_phandle(UCLASS_EBC, dev,
"ebc_tcon",
&priv->ebc_tcon_dev);
if (ret && ret != -ENOENT) {
if (ret) {
dev_err(dev, "Cannot get ebc_tcon: %d\n", ret);
return ret;
}
@ -604,7 +611,7 @@ static int rockchip_eink_display_probe(struct udevice *dev)
ret = uclass_get_device_by_phandle(UCLASS_I2C_GENERIC, dev,
"pmic",
&priv->ebc_pwr_dev);
if (ret && ret != -ENOENT) {
if (ret) {
dev_err(dev, "Cannot get pmic: %d\n", ret);
return ret;
}