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/mt312.c | 43 +++++++++++++++----------------------------
1 files changed, 15 insertions(+), 28 deletions(-)
diff --git a/kernel/drivers/media/dvb-frontends/mt312.c b/kernel/drivers/media/dvb-frontends/mt312.c
index aad07ad..fb867dd 100644
--- a/kernel/drivers/media/dvb-frontends/mt312.c
+++ b/kernel/drivers/media/dvb-frontends/mt312.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
Driver for Zarlink VP310/MT312/ZL10313 Satellite Channel Decoder
Copyright (C) 2003 Andreas Oberritter <obi@linuxtv.org>
Copyright (C) 2008 Matthias Schwarzott <zzam@gentoo.org>
- 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.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
References:
http://products.zarlink.com/product_profiles/MT312.htm
@@ -148,11 +135,6 @@
return mt312_write(state, reg, &tmp, 1);
}
-static inline u32 mt312_div(u32 a, u32 b)
-{
- return (a + (b / 2)) / b;
-}
-
static int mt312_reset(struct mt312_state *state, const u8 full)
{
return mt312_writereg(state, RESET, full ? 0x80 : 0x40);
@@ -200,7 +182,7 @@
monitor = (buf[0] << 8) | buf[1];
dprintk("sr(auto) = %u\n",
- mt312_div(monitor * 15625, 4));
+ DIV_ROUND_CLOSEST(monitor * 15625, 4));
} else {
ret = mt312_writereg(state, MON_CTRL, 0x05);
if (ret < 0)
@@ -304,10 +286,10 @@
}
/* SYS_CLK */
- buf[0] = mt312_div(state->xtal * state->freq_mult * 2, 1000000);
+ buf[0] = DIV_ROUND_CLOSEST(state->xtal * state->freq_mult * 2, 1000000);
/* DISEQC_RATIO */
- buf[1] = mt312_div(state->xtal, 22000 * 4);
+ buf[1] = DIV_ROUND_CLOSEST(state->xtal, 22000 * 4);
ret = mt312_write(state, SYS_CLK, buf, sizeof(buf));
if (ret < 0)
@@ -623,7 +605,7 @@
}
/* sr = (u16)(sr * 256.0 / 1000000.0) */
- sr = mt312_div(p->symbol_rate * 4, 15625);
+ sr = DIV_ROUND_CLOSEST(p->symbol_rate * 4, 15625);
/* SYM_RATE */
buf[0] = (sr >> 8) & 0x3f;
@@ -645,7 +627,9 @@
if (ret < 0)
return ret;
- mt312_reset(state, 0);
+ ret = mt312_reset(state, 0);
+ if (ret < 0)
+ return ret;
return 0;
}
@@ -815,17 +799,20 @@
switch (state->id) {
case ID_VP310:
- strcpy(state->frontend.ops.info.name, "Zarlink VP310 DVB-S");
+ strscpy(state->frontend.ops.info.name, "Zarlink VP310 DVB-S",
+ sizeof(state->frontend.ops.info.name));
state->xtal = MT312_PLL_CLK;
state->freq_mult = 9;
break;
case ID_MT312:
- strcpy(state->frontend.ops.info.name, "Zarlink MT312 DVB-S");
+ strscpy(state->frontend.ops.info.name, "Zarlink MT312 DVB-S",
+ sizeof(state->frontend.ops.info.name));
state->xtal = MT312_PLL_CLK;
state->freq_mult = 6;
break;
case ID_ZL10313:
- strcpy(state->frontend.ops.info.name, "Zarlink ZL10313 DVB-S");
+ strscpy(state->frontend.ops.info.name, "Zarlink ZL10313 DVB-S",
+ sizeof(state->frontend.ops.info.name));
state->xtal = MT312_PLL_CLK_10_111;
state->freq_mult = 9;
break;
@@ -840,7 +827,7 @@
kfree(state);
return NULL;
}
-EXPORT_SYMBOL(mt312_attach);
+EXPORT_SYMBOL_GPL(mt312_attach);
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
--
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