[media] mxl5005s: fix compiler warning

Removed the unused Xtal_Int variable. That made it also possible to remove a
related function. However, the code of that function has been preserved in a
comment describing an equation. Without that function that comment would
have been hard to understand.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/common/tuners/mxl5005s.c b/drivers/media/common/tuners/mxl5005s.c
index 56fe75c..54be9e6 100644 (file)
--- a/drivers/media/common/tuners/mxl5005s.c
+++ b/drivers/media/common/tuners/mxl5005s.c
@@ -309,7 +309,6 @@ static u16 MXL_ControlWrite_Group(struct dvb_frontend *fe, u16 controlNum,
 static u16 MXL_SetGPIO(struct dvb_frontend *fe, u8 GPIO_Num, u8 GPIO_Val);
 static u16 MXL_GetInitRegister(struct dvb_frontend *fe, u8 *RegNum,
        u8 *RegVal, int *count);
-static u32 MXL_GetXtalInt(u32 Xtal_Freq);
 static u16 MXL_TuneRF(struct dvb_frontend *fe, u32 RF_Freq);
 static void MXL_SynthIFLO_Calc(struct dvb_frontend *fe);
 static void MXL_SynthRFTGLO_Calc(struct dvb_frontend *fe);
@@ -2307,14 +2306,6 @@ static u16 MXL_IFSynthInit(struct dvb_frontend *fe)
        return status ;
 }
 
-static u32 MXL_GetXtalInt(u32 Xtal_Freq)
-{
-       if ((Xtal_Freq % 1000000) == 0)
-               return (Xtal_Freq / 10000);
-       else
-               return (((Xtal_Freq / 1000000) + 1)*100);
-}
-
 static u16 MXL_TuneRF(struct dvb_frontend *fe, u32 RF_Freq)
 {
        struct mxl5005s_state *state = fe->tuner_priv;
@@ -2324,13 +2315,10 @@ static u16 MXL_TuneRF(struct dvb_frontend *fe, u32 RF_Freq)
        u32 Kdbl_RF = 2;
        u32 tg_divval;
        u32 tg_lo;
-       u32 Xtal_Int;
 
        u32 Fref_TG;
        u32 Fvco;
 
-       Xtal_Int = MXL_GetXtalInt(state->Fxtal);
-
        state->RF_IN = RF_Freq;
 
        MXL_SynthRFTGLO_Calc(fe);
@@ -2779,6 +2767,16 @@ static u16 MXL_TuneRF(struct dvb_frontend *fe, u32 RF_Freq)
        tg_lo = (((Fmax/10 - Fvco)/100)*32) / ((Fmax-Fmin)/1000)+8;
 
        /* below equation is same as above but much harder to debug.
+        *
+        * static u32 MXL_GetXtalInt(u32 Xtal_Freq)
+        * {
+        *      if ((Xtal_Freq % 1000000) == 0)
+        *              return (Xtal_Freq / 10000);
+        *      else
+        *              return (((Xtal_Freq / 1000000) + 1)*100);
+        * }
+        *
+        * u32 Xtal_Int = MXL_GetXtalInt(state->Fxtal);
         * tg_lo = ( ((Fmax/10000 * Xtal_Int)/100) -
         * ((state->TG_LO/10000)*divider_val *
         * (state->Fxtal/10000)/100) )*32/((Fmax-Fmin)/10000 *