[PATCH] gma500: Fix SDVO turning off randomly

[Guillaume Clement]

Some Poulsbo cards seem to incorrectly report 
SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED instead of SDVO_CMD_STATUS_PENDING, which 
causes the display to be turned off.

Signed-off-by: Guillaume Clement <gclement at baobob.org>
---
 drivers/gpu/drm/gma500/psb_intel_sdvo.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo.c 
b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
index 77841a1..6f01cdf 100644
--- a/drivers/gpu/drm/gma500/psb_intel_sdvo.c
+++ b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
@@ -500,7 +500,8 @@ static bool psb_intel_sdvo_read_response(struct 
psb_intel_sdvo *psb_intel_sdvo,
                                  &status))
                goto log_fail;

-       while (status == SDVO_CMD_STATUS_PENDING && retry--) {
+       while ((status == SDVO_CMD_STATUS_PENDING ||
+               status == SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED) && retry--) {
                udelay(15);
                if (!psb_intel_sdvo_read_byte(psb_intel_sdvo,
                                          SDVO_I2C_CMD_STATUS,
-- 
1.8.1.5