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authorDevin Heitmueller <dheitmueller@kernellabs.com>2009-08-03 22:52:59 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-08-13 20:39:07 -0300
commit93b999239c418cf5c668fd966ac2c5c27b8180dd (patch)
treefd1921883ce6278281a21e7582e5b0af3479241a /drivers/media/common
parent11db906983fc6e996fcd10073843bd6f1b9a96c3 (diff)
downloadop-kernel-dev-93b999239c418cf5c668fd966ac2c5c27b8180dd.zip
op-kernel-dev-93b999239c418cf5c668fd966ac2c5c27b8180dd.tar.gz
V4L/DVB (12394): cx88: Disable xc3028 power management for Geniatech x8000
A user discovered that the Geniatech x8000 encountered a regression when the xc3028 power management was introduced. The xc3028 never recovers after setting the powerdown register, which is probably because the xc3028 reset GPIO is not properly configured. Since I do not have access to the hardware and thus cannot determine the correct GPIO configuration, just disable xc3028 power management on this board, which fixes the regression. Thanks to user "ritec" for reporting the issue and testing the fix. Cc: rictec <rictec@netcabo.pt> Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/common')
-rw-r--r--drivers/media/common/tuners/tuner-xc2028.c4
-rw-r--r--drivers/media/common/tuners/tuner-xc2028.h1
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/media/common/tuners/tuner-xc2028.c b/drivers/media/common/tuners/tuner-xc2028.c
index aa20ce8..f270e60 100644
--- a/drivers/media/common/tuners/tuner-xc2028.c
+++ b/drivers/media/common/tuners/tuner-xc2028.c
@@ -1119,8 +1119,8 @@ static int xc2028_sleep(struct dvb_frontend *fe)
struct xc2028_data *priv = fe->tuner_priv;
int rc = 0;
- /* Avoid firmware reload on slow devices */
- if (no_poweroff)
+ /* Avoid firmware reload on slow devices or if PM disabled */
+ if (no_poweroff || priv->ctrl.disable_power_mgmt)
return 0;
tuner_dbg("Putting xc2028/3028 into poweroff mode.\n");
diff --git a/drivers/media/common/tuners/tuner-xc2028.h b/drivers/media/common/tuners/tuner-xc2028.h
index 19de792..a90c35d 100644
--- a/drivers/media/common/tuners/tuner-xc2028.h
+++ b/drivers/media/common/tuners/tuner-xc2028.h
@@ -38,6 +38,7 @@ struct xc2028_ctrl {
unsigned int input1:1;
unsigned int vhfbw7:1;
unsigned int uhfbw8:1;
+ unsigned int disable_power_mgmt:1;
unsigned int demod;
enum firmware_type type:2;
};
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