From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/media/dvb-frontends/cxd2841er.c | 29 +++++++++++++++--------------
1 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/kernel/drivers/media/dvb-frontends/cxd2841er.c b/kernel/drivers/media/dvb-frontends/cxd2841er.c
index c98093e..493ba8b 100644
--- a/kernel/drivers/media/dvb-frontends/cxd2841er.c
+++ b/kernel/drivers/media/dvb-frontends/cxd2841er.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* cxd2841er.c
*
@@ -9,16 +10,6 @@
* Copyright (C) 2014 NetUP Inc.
* Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
* Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
#include <linux/module.h>
@@ -69,6 +60,7 @@
enum cxd2841er_xtal xtal;
enum fe_caps caps;
u32 flags;
+ unsigned long stats_time;
};
static const struct cxd2841er_cnr_data s_cn_data[] = {
@@ -2947,7 +2939,7 @@
((priv->flags & CXD2841ER_ASCOT) ? 0x01 : 0x00), 0x01);
/* Set SLV-T Bank : 0x18 */
cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x18);
- /* Pre-RS BER moniter setting */
+ /* Pre-RS BER monitor setting */
cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x36, 0x40, 0x07);
/* FEC Auto Recovery setting */
cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x30, 0x01, 0x01);
@@ -3288,9 +3280,15 @@
p->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
if (status & FE_HAS_LOCK) {
+ if (priv->stats_time &&
+ (!time_after(jiffies, priv->stats_time)))
+ return 0;
+
+ /* Prevent retrieving stats faster than once per second */
+ priv->stats_time = jiffies + msecs_to_jiffies(1000);
+
cxd2841er_read_snr(fe);
cxd2841er_read_ucblocks(fe);
-
cxd2841er_read_ber(fe);
} else {
p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
@@ -3368,6 +3366,9 @@
p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+
+ /* Reset the wait for jiffies logic */
+ priv->stats_time = 0;
return ret;
}
@@ -3929,14 +3930,14 @@
{
return cxd2841er_attach(cfg, i2c, SYS_DVBS);
}
-EXPORT_SYMBOL(cxd2841er_attach_s);
+EXPORT_SYMBOL_GPL(cxd2841er_attach_s);
struct dvb_frontend *cxd2841er_attach_t_c(struct cxd2841er_config *cfg,
struct i2c_adapter *i2c)
{
return cxd2841er_attach(cfg, i2c, 0);
}
-EXPORT_SYMBOL(cxd2841er_attach_t_c);
+EXPORT_SYMBOL_GPL(cxd2841er_attach_t_c);
static const struct dvb_frontend_ops cxd2841er_dvbs_s2_ops = {
.delsys = { SYS_DVBS, SYS_DVBS2 },
--
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