diff options
| -rw-r--r-- | linux/drivers/media/video/saa7115.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/linux/drivers/media/video/saa7115.c b/linux/drivers/media/video/saa7115.c index ca27c8c4d..31d9ee396 100644 --- a/linux/drivers/media/video/saa7115.c +++ b/linux/drivers/media/video/saa7115.c @@ -104,26 +104,28 @@ static inline int saa711x_write(struct i2c_client *client, u8 reg, u8 value) /* Sanity routine to check if a register is present */ static int saa711x_has_reg(const int id, const u8 reg) { -#if 0 - /* saa7115 seems to needing to initialize some "reserved" registers */ switch (id) { case V4L2_IDENT_SAA7111: if (reg>0x1f || reg==1 || reg==0x0f || reg==0x14 || reg==0x18 || reg==0x19 || reg==0x1d || reg==0x1e) return 0; + break; case V4L2_IDENT_SAA7113: if (reg>0x62 || reg==0x14 || (reg>=0x18 && reg<=0x1e) || (reg>=0x20 && reg<=0x3f) ||reg==0x5f ) return 0; + break; case V4L2_IDENT_SAA7114: if (reg>=0xf0 || (reg>=0x1a && reg<=0x1e) || (reg>=0x20 && reg<=0x2f) || (reg>=0x63 && reg<=0x7f) ) return 0; + break; case V4L2_IDENT_SAA7115: if ((reg>=0x20 && reg<=0x2f) || (reg==0x5c) || (reg>=0xfc && reg<=0xfe) ) return 0; + break; case V4L2_IDENT_SAA7118: if (reg>=0xf0 || (reg>=0x1a && reg<=0x1d) || (reg>=0x63 && reg<=0x6f) ) @@ -136,7 +138,6 @@ static int saa711x_has_reg(const int id, const u8 reg) (reg>=0x3b && reg<=0x3f) || (reg==0x5f) || (reg>=0x63 && reg<=0x6f) ) ) return 0; -#endif return 1; } @@ -154,6 +155,8 @@ static int saa711x_writeregs(struct i2c_client *client, const unsigned char *reg if (saa711x_has_reg(state->ident,reg)) { if (saa711x_write(client, reg, data) < 0) return -1; + } else { + v4l_dbg(1, debug, client, "tried to access reserved reg 0x%02x\n", reg); } } return 0; |