ps3av: add quirk database for broken monitors

add a quirk database for broken monitors where the `best' advertised
video mode doesn't work

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/ps3/ps3av.c b/drivers/ps3/ps3av.c
index fbf8dcde967517db10d7fa8d8bcee7a1c77fa321..cae4af9959d3809f01b9b4c51728b757f1c72c6f 100644 (file)
--- a/drivers/ps3/ps3av.c
+++ b/drivers/ps3/ps3av.c
@@ -721,6 +721,45 @@ static void ps3av_monitor_info_dump(const struct ps3av_pkt_av_get_monitor_info *
        }
 }
 
+static const struct ps3av_monitor_quirk {
+       const char *monitor_name;
+       u32 clear_60, clear_50, clear_vesa;
+} ps3av_monitor_quirks[] = {
+       {
+               .monitor_name   = "DELL 2007WFP",
+               .clear_60       = PS3AV_RESBIT_1920x1080I
+       }, {
+               .monitor_name   = "L226WTQ",
+               .clear_60       = PS3AV_RESBIT_1920x1080I |
+                                 PS3AV_RESBIT_1920x1080P
+       }, {
+               .monitor_name   = "SyncMaster",
+               .clear_60       = PS3AV_RESBIT_1920x1080I
+       }
+};
+
+static void ps3av_fixup_monitor_info(struct ps3av_info_monitor *info)
+{
+       unsigned int i;
+       const struct ps3av_monitor_quirk *quirk;
+
+       for (i = 0; i < ARRAY_SIZE(ps3av_monitor_quirks); i++) {
+               quirk = &ps3av_monitor_quirks[i];
+               if (!strncmp(info->monitor_name, quirk->monitor_name,
+                            sizeof(info->monitor_name))) {
+                       pr_info("%s: Applying quirk for %s\n", __func__,
+                               quirk->monitor_name);
+                       info->res_60.res_bits &= ~quirk->clear_60;
+                       info->res_60.native &= ~quirk->clear_60;
+                       info->res_50.res_bits &= ~quirk->clear_50;
+                       info->res_50.native &= ~quirk->clear_50;
+                       info->res_vesa.res_bits &= ~quirk->clear_vesa;
+                       info->res_vesa.native &= ~quirk->clear_vesa;
+                       break;
+               }
+       }
+}
+
 static int ps3av_auto_videomode(struct ps3av_pkt_av_get_hw_conf *av_hw_conf,
                                int boot)
 {
@@ -739,6 +778,8 @@ static int ps3av_auto_videomode(struct ps3av_pkt_av_get_hw_conf *av_hw_conf,
                ps3av_monitor_info_dump(&monitor_info);
 
                info = &monitor_info.info;
+               ps3av_fixup_monitor_info(info);
+
                switch (info->monitor_type) {
                case PS3AV_MONITOR_TYPE_DVI:
                        dvi = PS3AV_MODE_DVI;