V4L/DVB (4533): Tda9887: add configuration setting for L standard PLL gating

Add a tuner config parameter for TDA9887, default_pll_gating_18, that
changes the L standard PLL gating value from 36% to 0% (datasheet says
0%, tda9887 code says 18%).
Turn this on for Microtune 4049FM5, as recomended by tuner datasheet.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

2 files changed, 4 insertions, 0 deletions

diff --git a/include/media/tuner-types.h b/include/media/tuner-types.h
index 3c43b95f4c0d..37dad07a8439 100644
--- a/include/media/tuner-types.h
+++ b/include/media/tuner-types.h
@@ -72,6 +72,9 @@ struct tuner_params {
         unsigned int port2_invert_for_secam_lc:1;
         /* Some cards require PORT1 to be 1 for mono Radio FM and 0 for stereo. */
         unsigned int port1_set_for_fm_mono:1;
+        /* Select 18% (or according to datasheet 0%) L standard PLL gating,
+           vs the driver default of 36%. */
+        unsigned int default_pll_gating_18:1;
         /* Default tda9887 TOP value in dB for the low band. Default is 0.
            Range: -16:+15 */
         signed int default_top_low:5;
diff --git a/include/media/tuner.h b/include/media/tuner.h
index 2f7b00b08e88..3116e750132f 100644
--- a/include/media/tuner.h
+++ b/include/media/tuner.h
@@ -144,6 +144,7 @@ extern int tuner_debug;
 #define TDA9887_DEEMPHASIS_50           (2<<16)
 #define TDA9887_DEEMPHASIS_75           (3<<16)
 #define TDA9887_AUTOMUTE                (1<<18)
+#define TDA9887_GATING_18               (1<<19)
 
 #ifdef __KERNEL__