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Elphel
linux-elphel
Commits
fcf79782
Commit
fcf79782
authored
Dec 16, 2013
by
Andrey Filippov
Browse files
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Plain Diff
Bug fixes
parent
719ed94d
Changes
1
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1 changed file
with
91 additions
and
62 deletions
+91
-62
si5338.c
drivers/misc/si5338.c
+91
-62
No files found.
drivers/misc/si5338.c
View file @
fcf79782
...
...
@@ -583,8 +583,8 @@ static ssize_t pre_init_store(struct device *dev, struct device_attribute *attr,
static
ssize_t
post_init_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
);
static
ssize_t
pll_freq_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
);
static
ssize_t
pll_freq_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
);
static
ssize_t
pll_
ms_freq_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
);
static
ssize_t
pll_
ms_freq_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
);
static
ssize_t
ms_freq_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
);
static
ssize_t
ms_freq_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
);
static
ssize_t
out_source_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
);
static
ssize_t
out_source_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
);
...
...
@@ -641,6 +641,7 @@ static ssize_t output_route_show(struct device *dev, struct device_attribute *at
static
ssize_t
output_route_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
);
static
int
get_output_description
(
struct
device
*
dev
,
char
*
buf
,
int
chn
);
static
int
get_out_frequency_txt
(
struct
device
*
dev
,
char
*
buf
,
int
chn
);
static
ssize_t
output_config_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
);
static
ssize_t
output_config_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
);
static
int
configure_output_driver
(
struct
device
*
dev
,
const
char
*
name
,
int
chn
);
...
...
@@ -825,6 +826,16 @@ static const struct attribute_group dev_attr_input_group = {
.
name
=
"input"
,
};
/* has to have/not have '_fract' in the name */
static
DEVICE_ATTR
(
ms0_freq_fract
,
SYSFS_PERMISSIONS
,
ms_freq_show
,
ms_freq_store
);
static
DEVICE_ATTR
(
ms0_freq_int
,
SYSFS_PERMISSIONS
,
ms_freq_show
,
ms_freq_store
);
static
DEVICE_ATTR
(
ms1_freq_fract
,
SYSFS_PERMISSIONS
,
ms_freq_show
,
ms_freq_store
);
static
DEVICE_ATTR
(
ms1_freq_int
,
SYSFS_PERMISSIONS
,
ms_freq_show
,
ms_freq_store
);
static
DEVICE_ATTR
(
ms2_freq_fract
,
SYSFS_PERMISSIONS
,
ms_freq_show
,
ms_freq_store
);
static
DEVICE_ATTR
(
ms2_freq_int
,
SYSFS_PERMISSIONS
,
ms_freq_show
,
ms_freq_store
);
static
DEVICE_ATTR
(
ms3_freq_fract
,
SYSFS_PERMISSIONS
,
ms_freq_show
,
ms_freq_store
);
static
DEVICE_ATTR
(
ms3_freq_int
,
SYSFS_PERMISSIONS
,
ms_freq_show
,
ms_freq_store
);
static
DEVICE_ATTR
(
ms0_p123
,
SYSFS_PERMISSIONS
,
ms_p123_show
,
ms_p123_store
);
static
DEVICE_ATTR
(
ms0_abc
,
SYSFS_PERMISSIONS
,
ms_abc_show
,
ms_abc_store
);
static
DEVICE_ATTR
(
ms1_p123
,
SYSFS_PERMISSIONS
,
ms_p123_show
,
ms_p123_store
);
...
...
@@ -841,20 +852,29 @@ static DEVICE_ATTR(ms_power_up, SYSFS_PERMISSIONS, ms_pwr_states_show, ms_p
static
DEVICE_ATTR
(
ms_reset
,
SYSFS_PERMISSIONS
&
SYSFS_WRITEONLY
,
NULL
,
ms_reset_store
);
static
struct
attribute
*
multisynth_attrs
[]
=
{
&
dev_attr_ms0_p123
.
attr
,
&
dev_attr_ms0_abc
.
attr
,
&
dev_attr_ms1_p123
.
attr
,
&
dev_attr_ms1_abc
.
attr
,
&
dev_attr_ms2_p123
.
attr
,
&
dev_attr_ms2_abc
.
attr
,
&
dev_attr_ms3_p123
.
attr
,
&
dev_attr_ms3_abc
.
attr
,
&
dev_attr_msn_p123
.
attr
,
&
dev_attr_msn_abc
.
attr
,
&
dev_attr_ms_power_down
.
attr
,
&
dev_attr_ms_power_up
.
attr
,
&
dev_attr_ms_reset
.
attr
,
NULL
&
dev_attr_ms0_freq_fract
.
attr
,
&
dev_attr_ms0_freq_int
.
attr
,
&
dev_attr_ms1_freq_fract
.
attr
,
&
dev_attr_ms1_freq_int
.
attr
,
&
dev_attr_ms2_freq_fract
.
attr
,
&
dev_attr_ms2_freq_int
.
attr
,
&
dev_attr_ms3_freq_fract
.
attr
,
&
dev_attr_ms3_freq_int
.
attr
,
&
dev_attr_ms0_p123
.
attr
,
&
dev_attr_ms0_abc
.
attr
,
&
dev_attr_ms1_p123
.
attr
,
&
dev_attr_ms1_abc
.
attr
,
&
dev_attr_ms2_p123
.
attr
,
&
dev_attr_ms2_abc
.
attr
,
&
dev_attr_ms3_p123
.
attr
,
&
dev_attr_ms3_abc
.
attr
,
&
dev_attr_msn_p123
.
attr
,
&
dev_attr_msn_abc
.
attr
,
&
dev_attr_ms_power_down
.
attr
,
&
dev_attr_ms_power_up
.
attr
,
&
dev_attr_ms_reset
.
attr
,
NULL
};
static
const
struct
attribute_group
dev_attr_multisynth_group
=
{
.
attrs
=
multisynth_attrs
,
...
...
@@ -900,16 +920,6 @@ static DEVICE_ATTR(pll_freq_int, SYSFS_PERMISSIONS, pll_freq_sh
static
DEVICE_ATTR
(
pll_by_out_fract
,
SYSFS_PERMISSIONS
,
pll_freq_show
,
pll_freq_store
);
static
DEVICE_ATTR
(
pll_by_out_int
,
SYSFS_PERMISSIONS
,
pll_freq_show
,
pll_freq_store
);
/* has to have/not have '_fract' in the name */
static
DEVICE_ATTR
(
pll_ms0_freq_fract
,
SYSFS_PERMISSIONS
,
pll_ms_freq_show
,
pll_ms_freq_store
);
static
DEVICE_ATTR
(
pll_ms0_freq_int
,
SYSFS_PERMISSIONS
,
pll_ms_freq_show
,
pll_ms_freq_store
);
static
DEVICE_ATTR
(
pll_ms1_freq_fract
,
SYSFS_PERMISSIONS
,
pll_ms_freq_show
,
pll_ms_freq_store
);
static
DEVICE_ATTR
(
pll_ms1_freq_int
,
SYSFS_PERMISSIONS
,
pll_ms_freq_show
,
pll_ms_freq_store
);
static
DEVICE_ATTR
(
pll_ms2_freq_fract
,
SYSFS_PERMISSIONS
,
pll_ms_freq_show
,
pll_ms_freq_store
);
static
DEVICE_ATTR
(
pll_ms2_freq_int
,
SYSFS_PERMISSIONS
,
pll_ms_freq_show
,
pll_ms_freq_store
);
static
DEVICE_ATTR
(
pll_ms3_freq_fract
,
SYSFS_PERMISSIONS
,
pll_ms_freq_show
,
pll_ms_freq_store
);
static
DEVICE_ATTR
(
pll_ms3_freq_int
,
SYSFS_PERMISSIONS
,
pll_ms_freq_show
,
pll_ms_freq_store
);
static
struct
attribute
*
pll_dev_attrs
[]
=
{
/* &dev_attr_pre_init.attr,
...
...
@@ -920,14 +930,6 @@ static struct attribute *pll_dev_attrs[] = {
&
dev_attr_pll_freq_int
.
attr
,
&
dev_attr_pll_by_out_fract
.
attr
,
&
dev_attr_pll_by_out_int
.
attr
,
&
dev_attr_pll_ms0_freq_fract
.
attr
,
&
dev_attr_pll_ms0_freq_int
.
attr
,
&
dev_attr_pll_ms1_freq_fract
.
attr
,
&
dev_attr_pll_ms1_freq_int
.
attr
,
&
dev_attr_pll_ms2_freq_fract
.
attr
,
&
dev_attr_pll_ms2_freq_int
.
attr
,
&
dev_attr_pll_ms3_freq_fract
.
attr
,
&
dev_attr_pll_ms3_freq_int
.
attr
,
NULL
};
...
...
@@ -1188,10 +1190,7 @@ static int make_config_out(struct device *dev)
for
(
iout
=
0
;
out_dis_states
[
iout
];
iout
++
)
num_files
++
;
for
(
iout
=
0
;
out_en_states
[
iout
];
iout
++
)
num_files
++
;
for
(
iout
=
0
;
out_pwr_states
[
iout
];
iout
++
)
num_files
++
;
for
(
iout
=
0
;
out_names
[
iout
];
iout
++
)
num_files
++
;
pattrs
=
devm_kzalloc
(
dev
,(
num_files
+
1
)
*
sizeof
(
pattrs
[
0
]),
GFP_KERNEL
);
if
(
!
pattrs
)
return
-
ENOMEM
;
dev_attrs
=
devm_kzalloc
(
dev
,
num_files
*
sizeof
(
dev_attrs
[
0
]),
GFP_KERNEL
);
...
...
@@ -1202,13 +1201,12 @@ static int make_config_out(struct device *dev)
memset
(
attr_group
,
0
,
sizeof
(
*
attr_group
));
for
(
index
=
0
;
index
<
num_types
;
index
++
)
{
dev_attrs
[
index
].
attr
.
name
=
drv_configs
[
index
].
description
;
dev_attrs
[
index
].
attr
.
mode
=
SYSFS_PERMISSIONS
&
SYSFS_WRITEONLY
;
dev_attrs
[
index
].
show
=
NULL
;
dev_attrs
[
index
].
attr
.
mode
=
SYSFS_PERMISSIONS
;
dev_attrs
[
index
].
show
=
output_config_show
;
dev_attrs
[
index
].
store
=
output_config_store
;
pattrs
[
index
]
=&
(
dev_attrs
[
index
].
attr
);
}
/* add outputs disabled states (write only) */
/* add outputs disabled states */
for
(
iout
=
0
;
out_dis_states
[
iout
];
iout
++
)
{
dev_attrs
[
index
].
attr
.
name
=
out_dis_states
[
iout
];
dev_attrs
[
index
].
attr
.
mode
=
SYSFS_PERMISSIONS
;
...
...
@@ -1217,7 +1215,7 @@ static int make_config_out(struct device *dev)
pattrs
[
index
]
=&
(
dev_attrs
[
index
].
attr
);
index
++
;
}
/* add outputs enable
(write only)
*/
/* add outputs enable */
for
(
iout
=
0
;
out_en_states
[
iout
];
iout
++
)
{
dev_attrs
[
index
].
attr
.
name
=
out_en_states
[
iout
];
dev_attrs
[
index
].
attr
.
mode
=
SYSFS_PERMISSIONS
;
...
...
@@ -1226,7 +1224,7 @@ static int make_config_out(struct device *dev)
pattrs
[
index
]
=&
(
dev_attrs
[
index
].
attr
);
index
++
;
}
/* add outputs enable
(write only)
*/
/* add outputs enable */
for
(
iout
=
0
;
out_pwr_states
[
iout
];
iout
++
)
{
dev_attrs
[
index
].
attr
.
name
=
out_pwr_states
[
iout
];
dev_attrs
[
index
].
attr
.
mode
=
SYSFS_PERMISSIONS
;
...
...
@@ -1235,7 +1233,6 @@ static int make_config_out(struct device *dev)
pattrs
[
index
]
=&
(
dev_attrs
[
index
].
attr
);
index
++
;
}
/* add outputs (readonly) */
for
(
iout
=
0
;
out_names
[
iout
];
iout
++
)
{
dev_attrs
[
index
].
attr
.
name
=
out_names
[
iout
];
...
...
@@ -1265,7 +1262,7 @@ static ssize_t status_show (struct device *dev, struct device_attribute *attr, c
int
status
;
struct
i2c_client
*
client
=
to_i2c_client
(
dev
);
if
(((
status
=
get_status
(
client
)))
<
0
)
return
status
;
return
sprintf
(
buf
,
"
%d
input clock: %s, feedback clock: %s, PLL lock: %s, calibration: %s
\n
"
,
return
sprintf
(
buf
,
"
0x%x
input clock: %s, feedback clock: %s, PLL lock: %s, calibration: %s
\n
"
,
status
,(
status
&
0x4
)
?
"LOST"
:
"OK"
,(
status
&
0x8
)
?
"LOST"
:
"OK"
,(
status
&
0x10
)
?
"LOST"
:
"OK"
,(
status
&
0x10
)
?
"IN PROGRESS"
:
"DONE"
);
}
...
...
@@ -1407,6 +1404,30 @@ static int get_out_frequency_txt(struct device *dev, char *buf, int chn)
return
sprintf
(
buf
,
"%lld-%lld/%lld Hz"
,
out_freq
[
0
],
out_freq
[
1
],
out_freq
[
2
]);
}
static
ssize_t
output_config_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
)
{
int
chn
,
i
,
rc
;
char
*
cp
=
buf
;
struct
i2c_client
*
client
=
to_i2c_client
(
dev
);
for
(
i
=
0
;
drv_configs
[
i
].
description
;
i
++
)
if
(
strcmp
(
attr
->
attr
.
name
,
drv_configs
[
i
].
description
)
==
0
)
{
break
;
}
if
(
!
drv_configs
[
i
].
description
)
return
-
EINVAL
;
/* filename does not exist - BUG */
for
(
chn
=
0
;
chn
<
4
;
chn
++
){
if
(((
rc
=
get_drv_type
(
client
,
chn
)))
<
0
)
return
rc
;
if
(
rc
!=
drv_configs
[
i
].
fmt
)
continue
;
if
(((
rc
=
get_drv_vdd
(
client
,
chn
)))
<
0
)
return
rc
;
if
(
rc
!=
drv_configs
[
i
].
vdd
)
continue
;
if
(((
rc
=
get_drv_trim
(
client
,
chn
)))
<
0
)
return
rc
;
if
(
rc
!=
drv_configs
[
i
].
trim
)
continue
;
if
(((
rc
=
get_drv_invert
(
client
,
chn
)))
<
0
)
return
rc
;
if
(
rc
!=
(
drv_configs
[
i
].
invert
&
3
))
continue
;
buf
+=
sprintf
(
buf
,
" %d"
,
chn
);
}
buf
+=
sprintf
(
buf
,
"
\n
"
);
return
buf
-
cp
;
}
static
ssize_t
output_config_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
)
{
int
chn
,
num_bytes
,
rc
;
...
...
@@ -2011,9 +2032,6 @@ static ssize_t ss_vals_store(struct device *dev, struct device_attribute *attr,
}
else
{
if
(((
rc
=
disable_spread_spectrum
(
client
,
chn
)))
<
0
)
return
rc
;
}
if
(((
rc
=
set_ss_state
(
client
,
1
,
chn
)))
<
0
)
return
rc
;
//static int enable_spread_spectrum(struct i2c_client *client,int chn)
}
return
count
;
}
...
...
@@ -2110,7 +2128,7 @@ static ssize_t pll_freq_store(struct device *dev, struct device_attribute *attr,
}
static
ssize_t
pll_
ms_freq_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
)
static
ssize_t
ms_freq_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
)
{
int
rc
,
chn
;
u64
ms_freq
[
3
];
...
...
@@ -2119,7 +2137,7 @@ static ssize_t pll_ms_freq_show(struct device *dev, struct device_attribute *att
if
(((
rc
=
get_pll_ms_freq
(
client
,
ms_freq
,
chn
)))
<
0
)
return
rc
;
return
sprintf
(
buf
,
"%lld %lld %lld
\n
"
,
ms_freq
[
0
],
ms_freq
[
1
],
ms_freq
[
2
]);
}
static
ssize_t
pll_
ms_freq_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
)
static
ssize_t
ms_freq_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
)
{
int
rc
,
chn
,
int_div
;
u64
freq
[
3
];
...
...
@@ -2863,6 +2881,7 @@ static int calc_ss_down_to_regs(struct i2c_client *client, u32 * up_regs, u32 *
if
(((
rc
=
_verify_output_channel
(
client
,
chn
)))
<
0
)
return
rc
;
rate
=
clientdata
->
spread_spectrum_rate
[
chn
];
/* in Hz */
amp
=
clientdata
->
spread_spectrum_amp
[
chn
];
/* in 0.01% */
dev_dbg
(
&
client
->
dev
,
"rate=%d, amp=%d
\n
"
,
rate
,
amp
);
if
((
rate
==
0
)
||
(
amp
==
0
))
return
1
;
/* Should disable SS */
...
...
@@ -2884,10 +2903,12 @@ static int calc_ss_down_to_regs(struct i2c_client *client, u32 * up_regs, u32 *
ssud
=
(
u32
)
div64_u64
(
ms_freq
,
rate
<<
2
);
if
(
updown_reg
)
updown_reg
[
0
]
=
ssud
;
if
(
down_regs
){
xy
[
0
]
=
6400000000LL
*
(
ms
[
0
]
*
ms
[
2
]
+
ms
[
1
]);
xy
[
0
]
=
6400000000LL
*
amp
*
(
ms
[
0
]
*
ms
[
2
]
+
ms
[
1
]);
xy
[
0
]
=
div64_u64
(
xy
[
0
],
ms
[
2
]);
xy
[
1
]
=
100000000LL
*
(
10000
-
amp
)
*
ssud
;
dev_dbg
(
&
client
->
dev
,
"x=0x%llx, y=0x%llx,
\n
"
,
xy
[
0
],
xy
[
1
]);
remove_common_factor
(
xy
);
dev_dbg
(
&
client
->
dev
,
"x=0x%llx, y=0x%llx,
\n
"
,
xy
[
0
],
xy
[
1
]);
down_regs
[
0
]
=
(
u32
)
div64_u64
(
xy
[
0
],
xy
[
1
]);
down_regs
[
2
]
=
(
u32
)
xy
[
1
];
down_regs
[
1
]
=
(
u32
)
xy
[
0
]
-
down_regs
[
2
]
*
down_regs
[
0
];
...
...
@@ -2897,6 +2918,8 @@ static int calc_ss_down_to_regs(struct i2c_client *client, u32 * up_regs, u32 *
up_regs
[
1
]
=
1
;
up_regs
[
2
]
=
0
;
}
dev_dbg
(
&
client
->
dev
,
"updown=0x%x, down[0]=0x%x, down[1]=0x%x, down[2]=0x%x, up[0]=0x%x, up[1]=0x%x, up[2]=0x%x
\n
"
,
updown_reg
[
0
],
down_regs
[
0
],
down_regs
[
1
],
down_regs
[
2
],
up_regs
[
0
],
up_regs
[
1
],
up_regs
[
2
]);
return
0
;
}
...
...
@@ -2916,19 +2939,26 @@ static int get_ss_regs(struct i2c_client *client, u32 * up_regs, u32 * down_regs
if
(
updown_reg
)
{
if
(((
updown_reg
[
0
]
=
read_multireg64
(
client
,
awe_msx_ssud
[
chn
])))
<
0
)
return
(
int
)
updown_reg
[
0
];
}
return
0
;
return
0
;
}
static
int
set_ss_regs
(
struct
i2c_client
*
client
,
u32
*
up_regs
,
u32
*
down_regs
,
u32
*
updown_reg
,
int
chn
)
/* chn 0,1,2,3, */
{
int
i
,
rc
;
if
(((
rc
=
_verify_output_channel
(
client
,
chn
)))
<
0
)
return
rc
;
if
(
up_regs
)
for
(
i
=
0
;
i
<
3
;
i
++
){
if
(((
rc
=
write_multireg64
(
client
,
(
u64
)
up_regs
[
i
],
awe_msx_ssup
[
chn
][
i
])))
<
0
)
return
rc
;
if
(
up_regs
){
dev_dbg
(
&
client
->
dev
,
"up[0]=0x%x, up[1]=0x%x, up[2]=0x%x
\n
"
,
up_regs
[
0
],
up_regs
[
1
],
up_regs
[
2
]);
for
(
i
=
0
;
i
<
3
;
i
++
){
if
(((
rc
=
write_multireg64
(
client
,
(
u64
)
up_regs
[
i
],
awe_msx_ssup
[
chn
][
i
])))
<
0
)
return
rc
;
}
}
if
(
down_regs
)
for
(
i
=
0
;
i
<
3
;
i
++
){
if
(((
rc
=
write_multireg64
(
client
,
(
u64
)
down_regs
[
i
],
awe_msx_ssdn
[
chn
][
i
])))
<
0
)
return
rc
;
if
(
down_regs
)
{
dev_dbg
(
&
client
->
dev
,
"down[0]=0x%x, down[1]=0x%x, down[2]=0x%x
\n
"
,
down_regs
[
0
],
down_regs
[
1
],
down_regs
[
2
]);
for
(
i
=
0
;
i
<
3
;
i
++
){
if
(((
rc
=
write_multireg64
(
client
,
(
u64
)
down_regs
[
i
],
awe_msx_ssdn
[
chn
][
i
])))
<
0
)
return
rc
;
}
}
if
(
updown_reg
)
{
dev_dbg
(
&
client
->
dev
,
"updown=0x%x
\n
"
,
updown_reg
[
0
]);
if
(((
rc
=
write_multireg64
(
client
,
(
u64
)
updown_reg
[
0
],
awe_msx_ssud
[
chn
])))
<
0
)
return
rc
;
}
return
0
;
...
...
@@ -4464,20 +4494,19 @@ static int write_reg(struct i2c_client *client, u16 reg, u8 val, u8 mask)
int
rc
,
page
;
struct
si5338_data_t
*
clientdata
=
i2c_get_clientdata
(
client
);
if
(
mask
==
0
)
return
0
;
page
=
(
reg
>>
8
)
&
REG5338_PAGE_MASK
;
if
(
page
!=
(
clientdata
->
last_page
))
{
/* set page if needed */
if
(((
rc
=
_write_single_reg
(
client
,
REG5338_PAGE
,
page
)))
<
0
)
return
rc
;
}
// dev_info(&client->dev,"reg=0x%x, val=0x%x, mask=0x%x\n", (int) reg, (int) val, (int) mask);
dev_dbg
(
&
client
->
dev
,
"reg=0x%x, val=0x%x, mask=0x%x
\n
"
,
(
int
)
reg
,
(
int
)
val
,
(
int
)
mask
);
if
(
mask
!=
0xff
){
if
(((
rc
=
read_reg
(
client
,
reg
&
0xff
)))
<
0
)
return
rc
;
if
(((
rc
=
read_reg
(
client
,
reg
)))
<
0
)
return
rc
;
/* full register including page */
val
=
((
val
^
rc
)
&
mask
)
^
rc
;
if
((
val
==
rc
)
&&
!
(
clientdata
->
cache
[
reg
].
flags
&
CACHE_VOLAT
))
{
dev_dbg
(
&
client
->
dev
,
"No change and not volatile -> no write
\n
"
);
return
0
;
}
}
page
=
(
reg
>>
8
)
&
REG5338_PAGE_MASK
;
if
(
page
!=
(
clientdata
->
last_page
))
{
/* set page if needed */
if
(((
rc
=
_write_single_reg
(
client
,
REG5338_PAGE
,
page
)))
<
0
)
return
rc
;
}
return
_write_single_reg
(
client
,
reg
&
0xff
,
val
);
}
...
...
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