[3.11.y.z extended stable] Patch "[media] dib8000: fix regression with dib807x" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    [media] dib8000: fix regression with dib807x

to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From f6bc6af525b2a66ac235e00b6da359991a4c59e8 Mon Sep 17 00:00:00 2001
From: Olivier Grenie <olivier.grenie at parrot.com>
Date: Thu, 12 Dec 2013 09:26:22 -0300
Subject: [media] dib8000: fix regression with dib807x

commit d67350f8c4e67f5eba627e1fd111f16257ca9c95 upstream.

Commit 173a64cb3fcf broke support for some dib807x versions.

Fix it by providing backward compatibility with the older versions.

[mkrufky at linuxtv.org: conflict handling and CodingStyle fixes]

Signed-off-by: Olivier Grenie <olivier.grenie at parrot.com>
Acked-by: Patrick Boettcher <pboettcher at kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab at samsung.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/media/dvb-frontends/dib8000.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/media/dvb-frontends/dib8000.c b/drivers/media/dvb-frontends/dib8000.c
index 9053614..487c253 100644
--- a/drivers/media/dvb-frontends/dib8000.c
+++ b/drivers/media/dvb-frontends/dib8000.c
@@ -2445,7 +2445,8 @@ static int dib8000_autosearch_start(struct dvb_frontend *fe)
 	if (state->revision == 0x8090)
 		internal = dib8000_read32(state, 23) / 1000;

-	if (state->autosearch_state == AS_SEARCHING_FFT) {
+	if ((state->revision >= 0x8002) &&
+	    (state->autosearch_state == AS_SEARCHING_FFT)) {
 		dib8000_write_word(state,  37, 0x0065); /* P_ctrl_pha_off_max default values */
 		dib8000_write_word(state, 116, 0x0000); /* P_ana_gain to 0 */

@@ -2481,7 +2482,8 @@ static int dib8000_autosearch_start(struct dvb_frontend *fe)
 		dib8000_write_word(state, 770, (dib8000_read_word(state, 770) & 0xdfff) | (1 << 13)); /* P_restart_ccg = 1 */
 		dib8000_write_word(state, 770, (dib8000_read_word(state, 770) & 0xdfff) | (0 << 13)); /* P_restart_ccg = 0 */
 		dib8000_write_word(state, 0, (dib8000_read_word(state, 0) & 0x7ff) | (0 << 15) | (1 << 13)); /* P_restart_search = 0; */
-	} else if (state->autosearch_state == AS_SEARCHING_GUARD) {
+	} else if ((state->revision >= 0x8002) &&
+		   (state->autosearch_state == AS_SEARCHING_GUARD)) {
 		c->transmission_mode = TRANSMISSION_MODE_8K;
 		c->guard_interval = GUARD_INTERVAL_1_8;
 		c->inversion = 0;
@@ -2583,7 +2585,8 @@ static int dib8000_autosearch_irq(struct dvb_frontend *fe)
 	struct dib8000_state *state = fe->demodulator_priv;
 	u16 irq_pending = dib8000_read_word(state, 1284);

-	if (state->autosearch_state == AS_SEARCHING_FFT) {
+	if ((state->revision >= 0x8002) &&
+	    (state->autosearch_state == AS_SEARCHING_FFT)) {
 		if (irq_pending & 0x1) {
 			dprintk("dib8000_autosearch_irq: max correlation result available");
 			return 3;
--
1.8.3.2