[media] it913x: fix IT9135 AX sleep

Old IT9135 AX needs a little bit different register settings for
sleep than newer IT9135 BX. This has been broken always, as power
management of the whole driver, but it started to be problem as I
fixed clock. Earlier clock was disabled very first on sleep and
rest of the commands were skipped by the chip as no clock, leaving
tuner full power state. When I fixed clocks these PM bugs started
raising out as I/O errors.

Cc: Bimow Chen <Bimow.Chen@ite.com.tw>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

2 files changed, 16 insertions, 1 deletions

diff --git a/drivers/media/tuners/tuner_it913x.c b/drivers/media/tuners/tuner_it913x.c
index cd20c5b0f07e..281d8c5cc0a9 100644
--- a/drivers/media/tuners/tuner_it913x.c
+++ b/drivers/media/tuners/tuner_it913x.c
@@ -371,7 +371,11 @@ static int it9137_set_params(struct dvb_frontend *fe)
 static int it913x_sleep(struct dvb_frontend *fe)
 {
         struct it913x_state *state = fe->tuner_priv;
-        return it913x_script_loader(state, it9137_tuner_off);
+
+        if (state->chip_ver == 0x01)
+                return it913x_script_loader(state, it9135ax_tuner_off);
+        else
+                return it913x_script_loader(state, it9137_tuner_off);
 }
 
 static int it913x_release(struct dvb_frontend *fe)
diff --git a/drivers/media/tuners/tuner_it913x_priv.h b/drivers/media/tuners/tuner_it913x_priv.h
index 8e85a61ea5f9..cc6f4b1e45aa 100644
--- a/drivers/media/tuners/tuner_it913x_priv.h
+++ b/drivers/media/tuners/tuner_it913x_priv.h
@@ -36,6 +36,17 @@ struct it913xset {	u32 pro;
                         u8 count;
 };
 
+/* Tuner setting scripts for IT9135 AX */
+static struct it913xset it9135ax_tuner_off[] = {
+        {PRO_DMOD, 0xec40, {0x00}, 0x01}, /* Power Down Tuner */
+        {PRO_DMOD, 0xec02, {0x3f}, 0x01},
+        {PRO_DMOD, 0xec03, {0x1f}, 0x01},
+        {PRO_DMOD, 0xec04, {0x3f}, 0x01},
+        {PRO_DMOD, 0xec05, {0x3f}, 0x01},
+        {PRO_DMOD, 0xec3f, {0x01}, 0x01},
+        {0xff, 0x0000, {0x00}, 0x00}, /* Terminating Entry */
+};
+
 /* Tuner setting scripts (still keeping it9137) */
 static struct it913xset it9137_tuner_off[] = {
         {PRO_DMOD, 0xec40, {0x00}, 0x01}, /* Power Down Tuner */