[media] drxk: Switch the delivery system on FE_SET_PROPERTY

The DRX-K doesn't change the delivery system at set_properties,
but do it at frontend init. This causes problems on programs like
w_scan that, by default, opens both frontends.

Instead, explicitly set the format when set_parameters callback is
called.

Tested-by: Eddi De Pieri <eddi@depieri.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 12 insertions, 5 deletions

diff --git a/drivers/media/dvb/frontends/drxk_hard.c b/drivers/media/dvb/frontends/drxk_hard.c
index 95cbc98176f..038e470bf03 100644
--- a/drivers/media/dvb/frontends/drxk_hard.c
+++ b/drivers/media/dvb/frontends/drxk_hard.c
@@ -1847,6 +1847,7 @@ static int SetOperationMode(struct drxk_state *state,
                 */
         switch (oMode) {
         case OM_DVBT:
+                dprintk(1, ": DVB-T\n");
                 state->m_OperationMode = oMode;
                 status = SetDVBTStandard(state, oMode);
                 if (status < 0)
@@ -1854,6 +1855,8 @@ static int SetOperationMode(struct drxk_state *state,
                 break;
         case OM_QAM_ITU_A:      /* fallthrough */
         case OM_QAM_ITU_C:
+                dprintk(1, ": DVB-C Annex %c\n",
+                        (state->m_OperationMode == OM_QAM_ITU_A) ? 'A' : 'C');
                 state->m_OperationMode = oMode;
                 status = SetQAMStandard(state, oMode);
                 if (status < 0)
@@ -6183,7 +6186,10 @@ static int drxk_c_init(struct dvb_frontend *fe)
         dprintk(1, "\n");
         if (mutex_trylock(&state->ctlock) == 0)
                 return -EBUSY;
-        SetOperationMode(state, OM_QAM_ITU_A);
+        if (state->m_itut_annex_c)
+                SetOperationMode(state, OM_QAM_ITU_C);
+        else
+                SetOperationMode(state, OM_QAM_ITU_A);
         return 0;
 }
 
@@ -6219,12 +6225,11 @@ static int drxk_set_parameters(struct dvb_frontend *fe,
                 return -EINVAL;
         }
 
-        if (state->m_OperationMode == OM_QAM_ITU_A ||
-            state->m_OperationMode == OM_QAM_ITU_C) {
+        if (fe->ops.info.type == FE_QAM) {
                 if (fe->dtv_property_cache.rolloff == ROLLOFF_13)
-                        state->m_OperationMode = OM_QAM_ITU_C;
+                        state->m_itut_annex_c = true;
                 else
-                        state->m_OperationMode = OM_QAM_ITU_A;
+                        state->m_itut_annex_c = false;
         }
 
         if (fe->ops.i2c_gate_ctrl)
diff --git a/drivers/media/dvb/frontends/drxk_hard.h b/drivers/media/dvb/frontends/drxk_hard.h
index a05c32eecdc..85a423f9196 100644
--- a/drivers/media/dvb/frontends/drxk_hard.h
+++ b/drivers/media/dvb/frontends/drxk_hard.h
@@ -263,6 +263,8 @@ struct drxk_state {
         u8     m_TSDataStrength;
         u8     m_TSClockkStrength;
 
+        bool   m_itut_annex_c;      /* If true, uses ITU-T DVB-C Annex C, instead of Annex A */
+
         enum DRXMPEGStrWidth_t  m_widthSTR;    /**< MPEG start width */
         u32    m_mpegTsStaticBitrate;          /**< Maximum bitrate in b/s in case
                                                     static clockrate is selected */