diff options
Diffstat (limited to 'src/drivers/parade')
| -rw-r--r-- | src/drivers/parade/ps8640/ps8640.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/drivers/parade/ps8640/ps8640.c b/src/drivers/parade/ps8640/ps8640.c index 884b46af5f35..c26c6effb74b 100644 --- a/src/drivers/parade/ps8640/ps8640.c +++ b/src/drivers/parade/ps8640/ps8640.c @@ -60,16 +60,22 @@ int ps8640_init(uint8_t bus, uint8_t chip) u8 set_vdo_done; struct stopwatch sw; - stopwatch_init_msecs_expire(&sw, 350); + mdelay(200); + stopwatch_init_msecs_expire(&sw, 200); - do { + while (true) { i2c_readb(bus, chip + 2, PAGE2_GPIO_H, &set_vdo_done); + if ((set_vdo_done & PS_GPIO9) == PS_GPIO9) + break; if (stopwatch_expired(&sw)) { printk(BIOS_INFO, "Failed to init ps8640.\n"); return -1; } - } while ((set_vdo_done & PS_GPIO9) != PS_GPIO9); + mdelay(20); + } + + mdelay(50); i2c_writeb(bus, chip + 3, PAGE3_SET_ADD, VDO_CTL_ADD); i2c_writeb(bus, chip + 3, PAGE3_SET_VAL, VDO_DIS); i2c_writeb(bus, chip + 3, PAGE3_SET_ADD, VDO_CTL_ADD); |