diff options
Diffstat (limited to 'drivers/video/sunxi/sunxi_display.c')
| -rw-r--r-- | drivers/video/sunxi/sunxi_display.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/video/sunxi/sunxi_display.c b/drivers/video/sunxi/sunxi_display.c index 0362071f72..46436b88c5 100644 --- a/drivers/video/sunxi/sunxi_display.c +++ b/drivers/video/sunxi/sunxi_display.c @@ -210,7 +210,8 @@ static int sunxi_hdmi_edid_get_block(int block, u8 *buf) return r; } -static int sunxi_hdmi_edid_get_mode(struct ctfb_res_modes *mode) +static int sunxi_hdmi_edid_get_mode(struct ctfb_res_modes *mode, + bool verbose_mode) { struct edid1_info edid1; struct edid_cea861_info cea681[4]; @@ -241,7 +242,8 @@ static int sunxi_hdmi_edid_get_mode(struct ctfb_res_modes *mode) if (r == 0) { r = edid_check_info(&edid1); if (r) { - printf("EDID: invalid EDID data\n"); + if (verbose_mode) + printf("EDID: invalid EDID data\n"); r = -EINVAL; } } @@ -1082,7 +1084,8 @@ void *video_hw_init(void) struct ctfb_res_modes custom; const char *options; #ifdef CONFIG_VIDEO_HDMI - int ret, hpd, hpd_delay, edid; + int hpd, hpd_delay, edid; + bool hdmi_present; #endif int i, overscan_offset, overscan_x, overscan_y; unsigned int fb_dma_addr; @@ -1118,12 +1121,23 @@ void *video_hw_init(void) if (sunxi_display.monitor == sunxi_monitor_dvi || sunxi_display.monitor == sunxi_monitor_hdmi) { /* Always call hdp_detect, as it also enables clocks, etc. */ - ret = sunxi_hdmi_hpd_detect(hpd_delay); - if (ret) { + hdmi_present = (sunxi_hdmi_hpd_detect(hpd_delay) == 1); + if (hdmi_present && edid) { printf("HDMI connected: "); - if (edid && sunxi_hdmi_edid_get_mode(&custom) == 0) + if (sunxi_hdmi_edid_get_mode(&custom, true) == 0) mode = &custom; - } else if (hpd) { + else + hdmi_present = false; + } + /* Fall back to EDID in case HPD failed */ + if (edid && !hdmi_present) { + if (sunxi_hdmi_edid_get_mode(&custom, false) == 0) { + mode = &custom; + hdmi_present = true; + } + } + /* Shut down when display was not found */ + if ((hpd || edid) && !hdmi_present) { sunxi_hdmi_shutdown(); sunxi_display.monitor = sunxi_get_default_mon(false); } /* else continue with hdmi/dvi without a cable connected */ |