diff options
| -rw-r--r-- | hwc/hwc.c | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -81,6 +81,7 @@ struct omap4_hwc_ext { /* configuration */ __u32 last_xres_used; /* resolution and pixel ratio used for mode selection */ __u32 last_yres_used; + __u32 last_mode; /* 2-s complement of last HDMI mode set, 0 if none */ float last_xpy; __u16 width; /* external screen dimensions */ __u16 height; @@ -763,7 +764,10 @@ static int omap4_hwc_set_best_hdmi_mode(omap4_hwc_device_t *hwc_dev, __u32 xres, struct dsscomp_setup_display_data sdis = { .ix = 1, }; sdis.mode = d.dis.modedb[best]; LOGD("picking #%d", best); - ioctl(hwc_dev->dsscomp_fd, DSSCOMP_SETUP_DISPLAY, &sdis); + /* only reconfigure on change */ + if (ext->last_mode != ~best) + ioctl(hwc_dev->dsscomp_fd, DSSCOMP_SETUP_DISPLAY, &sdis); + ext->last_mode = ~best; } else { __u32 ext_width = d.dis.width_in_mm; __u32 ext_height = d.dis.height_in_mm; @@ -1430,6 +1434,8 @@ static void handle_hotplug(omap4_hwc_device_t *hwc_dev, int state) else ext->mirror.enabled = 0; } + } else { + ext->last_mode = 0; } omap4_hwc_create_ext_matrix(ext); LOGI("external display changed (state=%d, mirror={%s tform=%ddeg%s}, dock={%s tform=%ddeg%s}, tv=%d", state, |