diff options
| -rw-r--r-- | src/soc/rockchip/rk3399/display.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/src/soc/rockchip/rk3399/display.c b/src/soc/rockchip/rk3399/display.c index b81e96f0fe..f27d78ed86 100644 --- a/src/soc/rockchip/rk3399/display.c +++ b/src/soc/rockchip/rk3399/display.c @@ -45,7 +45,7 @@ static void reset_edp(void) udelay(1); write32(&cru_ptr->softrst_con[17], RK_CLRBITS(1 << 12 | 1 << 13)); - printk(BIOS_WARNING, "Retrying epd initialization.\n"); + printk(BIOS_WARNING, "Retrying EDP initialization.\n"); } void rk_display_init(device_t dev) @@ -53,8 +53,9 @@ void rk_display_init(device_t dev) struct edid edid; struct soc_rockchip_rk3399_config *conf = dev->chip_info; enum vop_modes detected_mode = VOP_MODE_UNKNOWN; - int retry_count = 0; const struct mipi_panel_data *panel_data = NULL; + int retry_count_init = 0; + int retry_count_edp_prepare = 0; /* let's use vop0 in rk3399 */ uint32_t vop_id = 0; @@ -77,14 +78,17 @@ void rk_display_init(device_t dev) write32(&rk3399_grf->soc_con25, RK_SETBITS(1 << 11)); retry_edp: - while (retry_count++ < 3) { + /* Reset in case code jumped here. */ + retry_count_init = 0; + while (retry_count_init++ < 3) { rk_edp_init(); if (rk_edp_get_edid(&edid) == 0) { detected_mode = VOP_MODE_EDP; break; } - if (retry_count == 3) { - printk(BIOS_WARNING, "Warning: epd initialization failed.\n"); + if (retry_count_init == 3) { + printk(BIOS_WARNING, + "Warning: EDP initialization failed.\n"); return; } else { reset_edp(); @@ -159,8 +163,13 @@ retry_edp: case VOP_MODE_EDP: /* will enable edp in depthcharge */ if (rk_edp_prepare()) { - reset_edp(); - goto retry_edp; /* Rerun entire init sequence */ + if (retry_count_edp_prepare++ < 3) { + reset_edp(); + /* Rerun entire init sequence */ + goto retry_edp; + } + printk(BIOS_ERR, "EDP preparation failed."); + return; } break; default: |