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dtv_demod: fix crash caused by accessing T2 registers on T5D (v3.5.35) [1/1]

Browse Source 
PD#SWPL-164868

Problem:
system crashes when scanning on T2 mode on T5D

Solution:
avoid accessing T2 registers on T5D

Verify:
AM301

Change-Id: Ib19595337d6ff5de1121d398c070a27167a314c5
Signed-off-by: caiyi.xu <caiyi.xu@amlogic.com>
This commit is contained in:
caiyi.xu
2024-04-12 08:47:33 +00:00
committed by gerrit autosubmit
parent 013d4c3904
commit a76772f200
2 changed files with 9 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/media/dtv_demod/dvbt/dvbt_frontend.c
+6 -3
View File
@@ -701,7 +701,8 @@ int dvbt2_tune(struct dvb_frontend *fe, bool re_tune,
/*polling*/
dvbt2_read_status(fe, status, &is_signal);
dvbt2_info(demod, NULL);
if (cpu_after_eq(MESON_CPU_MAJOR_ID_T3))
dvbt2_info(demod, NULL);
return 0;
}
@@ -745,8 +746,10 @@ int dvbtx_tune(struct dvb_frontend *fe, bool re_tune,
read_status = cur_system == SYS_DVBT ? dvbt_read_status : dvbt2_read_status;
read_status(fe, status, &is_signal);
show_info = cur_system == SYS_DVBT ? dvbt_info : dvbt2_info;
show_info(demod, NULL);
if (cpu_after_eq(MESON_CPU_MAJOR_ID_T3)) {
show_info = cur_system == SYS_DVBT ? dvbt_info : dvbt2_info;
show_info(demod, NULL);
}
if (*status == FE_TIMEDOUT && is_signal == -1) {
if (chk_times > 0) {
drivers/media/dtv_demod/include/amlfrontend.h
+3 -2
View File
@@ -159,6 +159,7 @@
/* V3.5.032 rebuild dtmb driver */
/* V3.5.033 remove more print logs */
/* V3.5.034 fix incorrect cfo calculation results and add t2 info */
/* V3.5.035 fix crash caused by accessing T2 registers on T5D */
/****************************************************/
/****************************************************************/
/* AMLDTVDEMOD_VER Description: */
@@ -175,8 +176,8 @@
/*->The last four digits indicate the release time */
/****************************************************************/
#define KERNEL_4_9_EN 1
#define AMLDTVDEMOD_VER "V3.5.034"
#define DTVDEMOD_VER "2024/04/10: fix incorrect cfo calculation results and add t2 info"
#define AMLDTVDEMOD_VER "V3.5.035"
#define DTVDEMOD_VER "2024/04/12: fix crash caused by accessing T2 registers on T5D"
#define AMLDTVDEMOD_T2_FW_VER "20231019_141000"
#define DEMOD_DEVICE_NAME "dtvdemod"