Revision 497d2214e5ba58ef55025b9951e7f9cccab760e4 authored by Mike Turquette on 06 January 2014, 05:36:43 UTC, committed by Mike Turquette on 06 January 2014, 05:36:43 UTC
Samsung Clock fixes for 3.13-rc7
* Several patches fixing up incorrectly defined register addresses and
bitfield offsets that could lead to undefined operation when accessing
respective registers or bitfields.
1) clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
2a) clk: samsung: exynos5250: Fix ACP gate register offset
2b) clk: samsung: exynos5250: Add MDMA0 clocks
2c) ARM: dts: exynos5250: Fix MDMA0 clock number
3) clk: samsung: exynos4: Correct SRC_MFC register
All three issues have been present since Exynos5250 and Exynos4 clock
drivers were added by commits 6e3ad26816b72 ("clk: exynos5250:
register clocks using common clock framework") and e062b571777f5
("clk: exynos4: register clocks using common clock framework")
respectively.
* Patch to fix automatic disabling of Exynos5250 sysreg clock that could
cause undefined operation of several peripherals, such as USB, I2C,
MIPI or display block.
4) clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
clock
Present since Exynos5250 clock drivers was added by commits
6e3ad26816b72 ("clk: exynos5250: register clocks using common clock
framework").
* Patch fixing compilation warning in clk-exynos-audss driver when
CONFIG_PM_SLEEP is disabled.
5) clk: exynos: File scope reg_save array should depend on PM_SLEEP
Present since the driver was added by commit 1241ef94ccc3 ("clk:
samsung: register audio subsystem clocks using common clock
framework").
timeconst.bc
scale=0
define gcd(a,b) {
auto t;
while (b) {
t = b;
b = a % b;
a = t;
}
return a;
}
/* Division by reciprocal multiplication. */
define fmul(b,n,d) {
return (2^b*n+d-1)/d;
}
/* Adjustment factor when a ceiling value is used. Use as:
(imul * n) + (fmulxx * n + fadjxx) >> xx) */
define fadj(b,n,d) {
auto v;
d = d/gcd(n,d);
v = 2^b*(d-1)/d;
return v;
}
/* Compute the appropriate mul/adj values as well as a shift count,
which brings the mul value into the range 2^b-1 <= x < 2^b. Such
a shift value will be correct in the signed integer range and off
by at most one in the upper half of the unsigned range. */
define fmuls(b,n,d) {
auto s, m;
for (s = 0; 1; s++) {
m = fmul(s,n,d);
if (m >= 2^(b-1))
return s;
}
return 0;
}
define timeconst(hz) {
print "/* Automatically generated by kernel/timeconst.bc */\n"
print "/* Time conversion constants for HZ == ", hz, " */\n"
print "\n"
print "#ifndef KERNEL_TIMECONST_H\n"
print "#define KERNEL_TIMECONST_H\n\n"
print "#include <linux/param.h>\n"
print "#include <linux/types.h>\n\n"
print "#if HZ != ", hz, "\n"
print "#error \qkernel/timeconst.h has the wrong HZ value!\q\n"
print "#endif\n\n"
if (hz < 2) {
print "#error Totally bogus HZ value!\n"
} else {
s=fmuls(32,1000,hz)
obase=16
print "#define HZ_TO_MSEC_MUL32\tU64_C(0x", fmul(s,1000,hz), ")\n"
print "#define HZ_TO_MSEC_ADJ32\tU64_C(0x", fadj(s,1000,hz), ")\n"
obase=10
print "#define HZ_TO_MSEC_SHR32\t", s, "\n"
s=fmuls(32,hz,1000)
obase=16
print "#define MSEC_TO_HZ_MUL32\tU64_C(0x", fmul(s,hz,1000), ")\n"
print "#define MSEC_TO_HZ_ADJ32\tU64_C(0x", fadj(s,hz,1000), ")\n"
obase=10
print "#define MSEC_TO_HZ_SHR32\t", s, "\n"
obase=10
cd=gcd(hz,1000)
print "#define HZ_TO_MSEC_NUM\t\t", 1000/cd, "\n"
print "#define HZ_TO_MSEC_DEN\t\t", hz/cd, "\n"
print "#define MSEC_TO_HZ_NUM\t\t", hz/cd, "\n"
print "#define MSEC_TO_HZ_DEN\t\t", 1000/cd, "\n"
print "\n"
s=fmuls(32,1000000,hz)
obase=16
print "#define HZ_TO_USEC_MUL32\tU64_C(0x", fmul(s,1000000,hz), ")\n"
print "#define HZ_TO_USEC_ADJ32\tU64_C(0x", fadj(s,1000000,hz), ")\n"
obase=10
print "#define HZ_TO_USEC_SHR32\t", s, "\n"
s=fmuls(32,hz,1000000)
obase=16
print "#define USEC_TO_HZ_MUL32\tU64_C(0x", fmul(s,hz,1000000), ")\n"
print "#define USEC_TO_HZ_ADJ32\tU64_C(0x", fadj(s,hz,1000000), ")\n"
obase=10
print "#define USEC_TO_HZ_SHR32\t", s, "\n"
obase=10
cd=gcd(hz,1000000)
print "#define HZ_TO_USEC_NUM\t\t", 1000000/cd, "\n"
print "#define HZ_TO_USEC_DEN\t\t", hz/cd, "\n"
print "#define USEC_TO_HZ_NUM\t\t", hz/cd, "\n"
print "#define USEC_TO_HZ_DEN\t\t", 1000000/cd, "\n"
print "\n"
print "#endif /* KERNEL_TIMECONST_H */\n"
}
halt
}
timeconst(hz)
Computing file changes ...
