[PATCH] dvb: LGDT3302 QAM lock bug fix

Fix QAM lock bug.  Previously, it was necessary to first scan in VSB before
attempting to get a QAM lock.

Signed-off-by: Mac Michaels <wmichaels1@earthlink.net>
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 13 deletions

diff --git a/drivers/media/dvb/frontends/lgdt3302.c b/drivers/media/dvb/frontends/lgdt3302.c
index 2eea03d218cd..c85a2a99df42 100644
--- a/drivers/media/dvb/frontends/lgdt3302.c
+++ b/drivers/media/dvb/frontends/lgdt3302.c
@@ -217,13 +217,11 @@ static int lgdt3302_set_parameters(struct dvb_frontend* fe,
         static u8 demux_ctrl_cfg[] = { DEMUX_CONTROL, 0xfb };
         static u8 agc_rf_cfg[]     = { AGC_RF_BANDWIDTH0, 0x40, 0x93, 0x00 };
         static u8 agc_ctrl_cfg[]   = { AGC_FUNC_CTRL2, 0xc6, 0x40 };
-        static u8 agc_delay_cfg[]  = { AGC_DELAY0, 0x00, 0x00, 0x00 };
+        static u8 agc_delay_cfg[]  = { AGC_DELAY0, 0x07, 0x00, 0xfe };
         static u8 agc_loop_cfg[]   = { AGC_LOOP_BANDWIDTH0, 0x08, 0x9a };
 
         /* Change only if we are actually changing the modulation */
         if (state->current_modulation != param->u.vsb.modulation) {
-                int value;
-
                 switch(param->u.vsb.modulation) {
                 case VSB_8:
                         dprintk("%s: VSB_8 MODE\n", __FUNCTION__);
@@ -276,16 +274,8 @@ static int lgdt3302_set_parameters(struct dvb_frontend* fe,
                    recovery center frequency register */
                 i2c_writebytes(state, state->config->demod_address,
                                        vsb_freq_cfg, sizeof(vsb_freq_cfg));
-                /* Set the value of 'INLVTHD' register 0x2a/0x2c
-                   to value from 'IFACC' register 0x39/0x3b -1 */
-                i2c_selectreadbytes(state, AGC_RFIF_ACC0,
-                                    &agc_delay_cfg[1], 3);
-                value = ((agc_delay_cfg[1] & 0x0f) << 8) | agc_delay_cfg[3];
-                value = value -1;
-                dprintk("%s IFACC -1 = 0x%03x\n", __FUNCTION__, value);
-                agc_delay_cfg[1] = (value >> 8) & 0x0f;
-                agc_delay_cfg[2] = 0x00;
-                agc_delay_cfg[3] = value & 0xff;
+
+                /* Set the value of 'INLVTHD' register 0x2a/0x2c to 0x7fe */
                 i2c_writebytes(state, state->config->demod_address,
                                agc_delay_cfg, sizeof(agc_delay_cfg));