dtv_demod: TXLX ISDB-T can't search channel [1/1]

PD#SWPL-3987

Problem:
[Einstein]use ISDB-T cannot search any channel

Solution:
release cma memory at leave_mode for ISDB-t&DVB-T

Verify:
verified by t962x_r311

Change-Id: I9b79687a4d5270932ab30afaa3e7d2817e900149
Signed-off-by: Zhiwei Yuan <zhiwei.yuan@amlogic.com>

diff --git a/drivers/amlogic/media/dtv_demod/amlfrontend.c b/drivers/amlogic/media/dtv_demod/amlfrontend.c
index 0bea4d3..24a823f 100644 (file)
--- a/drivers/amlogic/media/dtv_demod/amlfrontend.c
+++ b/drivers/amlogic/media/dtv_demod/amlfrontend.c
@@ -2752,6 +2752,7 @@ static bool enter_mode(enum aml_fe_n_mode_t mode)
                timer_set_max(D_TIMER_DETECT, 2000);
                /*reset is 4s*/
                timer_set_max(D_TIMER_SET, 4000);
+
                if (devn->cma_flag == 1) {
                        PR_DBG("CMA MODE, cma flag is %d,mem size is %d",
                                devn->cma_flag,
@@ -2761,11 +2762,11 @@ static bool enter_mode(enum aml_fe_n_mode_t mode)
                        } else {
                                ret = false;
                                return ret;
-
                        }
                } else {
                        memstart_dtmb = devn->mem_start;/*??*/
                }
+
                PR_DBG("[im]memstart is %x\n", memstart_dtmb);
                dvbt_write_reg((0x10 << 2), memstart_dtmb);
        }
@@ -2792,16 +2793,7 @@ static int leave_mode(enum aml_fe_n_mode_t mode)
        /*dvbc_timer_exit();*/
        if (cci_thread)
                dvbc_kill_cci_task();
-       #if 0
-       if (mode == AM_FE_DTMB_N) {
-               dtmb_poll_stop();       /*polling mode*/
-               /* close arbit */
 
-               demod_write_reg(DEMOD_TOP_REGC, 0x0);
-               if (devn->cma_flag == 1)
-                       dtmb_cma_release(devn);
-       }
-       #else
        if (mode == AM_FE_DTMB_N) {
                if (dtvdd_devp->act_dtmb) {
                        dtmb_poll_stop();       /*polling mode*/
@@ -2814,8 +2806,12 @@ static int leave_mode(enum aml_fe_n_mode_t mode)
                        dtmb_cma_release(devn);
                        dtvdd_devp->flg_cma_allc = false;
                }
+       } else if (mode == AM_FE_OFDM_N || mode == AM_FE_ISDBT_N) {
+               if ((devn->cma_flag == 1) && dtvdd_devp->flg_cma_allc) {
+                       dtmb_cma_release(devn);
+                       dtvdd_devp->flg_cma_allc = false;
+               }
        }
-       #endif
 
        adc_set_pll_cntl(0, 0x04, NULL);
        demod_mode_para = UNKNOWN;