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>

1 files changed, 41 insertions, 0 deletions

diff --git a/drivers/ps3/ps3av.c b/drivers/ps3/ps3av.c
index fbf8dcde9675..cae4af9959d3 100644
--- 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;