mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-19 19:17:48 +07:00
602c7595a1
Initialize val to 0, to remove the following warning with CONFIG_CC_OPTIMIZE_FOR_SIZE. The compiler used was gcc 4.4.1 (Sourcery G++ Lite 2010q1-202). drivers/net/wireless/ti/wl18xx/io.c: In function 'wl18xx_top_reg_read': drivers/net/wireless/ti/wl18xx/io.c:57: warning: 'val' may be used uninitialized in this function Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/*
|
|
* This file is part of wl18xx
|
|
*
|
|
* Copyright (C) 2011 Texas Instruments
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2 as published by the Free Software Foundation.
|
|
*
|
|
* 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., 51 Franklin St, Fifth Floor, Boston, MA
|
|
* 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
#include "../wlcore/wlcore.h"
|
|
#include "../wlcore/io.h"
|
|
|
|
#include "io.h"
|
|
|
|
int wl18xx_top_reg_write(struct wl1271 *wl, int addr, u16 val)
|
|
{
|
|
u32 tmp;
|
|
int ret;
|
|
|
|
if (WARN_ON(addr % 2))
|
|
return -EINVAL;
|
|
|
|
if ((addr % 4) == 0) {
|
|
ret = wlcore_read32(wl, addr, &tmp);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
tmp = (tmp & 0xffff0000) | val;
|
|
ret = wlcore_write32(wl, addr, tmp);
|
|
} else {
|
|
ret = wlcore_read32(wl, addr - 2, &tmp);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
tmp = (tmp & 0xffff) | (val << 16);
|
|
ret = wlcore_write32(wl, addr - 2, tmp);
|
|
}
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
int wl18xx_top_reg_read(struct wl1271 *wl, int addr, u16 *out)
|
|
{
|
|
u32 val = 0;
|
|
int ret;
|
|
|
|
if (WARN_ON(addr % 2))
|
|
return -EINVAL;
|
|
|
|
if ((addr % 4) == 0) {
|
|
/* address is 4-bytes aligned */
|
|
ret = wlcore_read32(wl, addr, &val);
|
|
if (ret >= 0 && out)
|
|
*out = val & 0xffff;
|
|
} else {
|
|
ret = wlcore_read32(wl, addr - 2, &val);
|
|
if (ret >= 0 && out)
|
|
*out = (val & 0xffff0000) >> 16;
|
|
}
|
|
|
|
return ret;
|
|
}
|