radeon: verbose debug messages on errors

diff --git a/gralloc_drm_radeon.c b/gralloc_drm_radeon.c
index 1aca76f..e09b16a 100644 (file)
--- a/gralloc_drm_radeon.c
+++ b/gralloc_drm_radeon.c
@@ -441,28 +441,38 @@ static int radeon_probe(struct radeon_info *info)
        kinfo.request = RADEON_INFO_DEVICE_ID;
        kinfo.value = (long) &info->chipset;
        err = drmCommandWriteRead(info->fd, DRM_RADEON_INFO, &kinfo, sizeof(kinfo));
-       if (err)
+       if (err) {
+               LOGE("failed to get device id");
                return err;
+       }
 
        /* XXX this is wrong and a table should be used */
-       if (info->chipset >= 0x68e4 && info->chipset <= 0x68fe)
+       if (info->chipset >= 0x68e4 && info->chipset <= 0x68fe) {
                info->chip_family = CHIP_FAMILY_CEDAR;
-       else if (info->chipset >= 0x9802 && info->chipset <= 0x9807)
+       }
+       else if (info->chipset >= 0x9802 && info->chipset <= 0x9807) {
                info->chip_family = CHIP_FAMILY_PALM;
-       else
+       }
+       else {
+               LOGE("unknown device id 0x%04x", info->chipset);
                return -EINVAL;
+       }
 
        err = radeon_init_tile_config(info);
-       if (err)
+       if (err) {
+               LOGE("failed to get tiling config");
                return err;
+       }
 
        /* CPU cannot handle tiled buffers (need scratch buffers) */
        info->allow_color_tiling = 0;
 
        memset(&mminfo, 0, sizeof(mminfo));
        err = drmCommandWriteRead(info->fd, DRM_RADEON_GEM_INFO, &mminfo, sizeof(mminfo));
-       if (err)
+       if (err) {
+               LOGE("failed to get gem info");
                return err;
+       }
 
        info->vram_size = mminfo.vram_visible;
        info->gart_size = mminfo.gart_size;