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authorArnd Bergmann <arnd@arndb.de>2014-03-17 15:17:07 +0100
committerArnd Bergmann <arnd@arndb.de>2014-03-17 15:17:07 +0100
commit38edc2da5014e70e46a724d97c3ef3dde106331b (patch)
tree590499bacd062e8dd74c6f05a7d811dd714a2d70 /drivers/cpufreq/intel_pstate.c
parent937b5991ca7717ceba99014f2ad3f51c85cdb9ad (diff)
parent28b191118c11719bb27db621425a70be28a40e08 (diff)
Merge tag 'omap-for-v3.15/dt-overo-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
Updates to the .dts files to support more Gumstix boards. These are sent separately from the rest of the .dts changes as these depend on the fixes merged into v3.14-rc4, and needed a bit more time to get updated on the fixes. * tag 'omap-for-v3.15/dt-overo-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: Add support for the Overo Summit ARM: dts: Add support for the Overo Chestnut43 ARM: dts: Add support for the Overo Alto35 ARM: dts: Add support for the Overo Gallop43 ARM: dts: Add support for the Overo Palo43 ARM: dts: overo: Add LIS33DE accelerometer ARM: dts: overo: Create a file for common Gumstix peripherals ARM: dts: overo: Push uart3 pinmux down to expansion board ARM: dts: omap3-tobi: Add AT24C01 EEPROM ARM: dts: omap3-tobi: Use include file omap-gpmc-smsc9221 ARM: dts: omap: Add common file for SMSC9221 ARM: dts: omap3-overo: Add HSUSB PHY ARM: dts: omap3-overo: Enable WiFi/BT combo ARM: dts: omap3-overo: Add missing pinctrl ARM: dts: omap3-tobi: Add missing pinctrl ARM: dts: overo: reorganize include files Signed-off-by: Arnd Bergmann <arnd@arndb.de> Conflicts: arch/arm/boot/dts/omap3-overo.dtsi
Diffstat (limited to 'drivers/cpufreq/intel_pstate.c')
-rw-r--r--drivers/cpufreq/intel_pstate.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index c788abf1c45..e9081610592 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -34,8 +34,10 @@
#define SAMPLE_COUNT 3
-#define BYT_RATIOS 0x66a
-#define BYT_VIDS 0x66b
+#define BYT_RATIOS 0x66a
+#define BYT_VIDS 0x66b
+#define BYT_TURBO_RATIOS 0x66c
+
#define FRAC_BITS 8
#define int_tofp(X) ((int64_t)(X) << FRAC_BITS)
@@ -357,7 +359,7 @@ static int byt_get_min_pstate(void)
{
u64 value;
rdmsrl(BYT_RATIOS, value);
- return value & 0xFF;
+ return (value >> 8) & 0xFF;
}
static int byt_get_max_pstate(void)
@@ -367,6 +369,13 @@ static int byt_get_max_pstate(void)
return (value >> 16) & 0xFF;
}
+static int byt_get_turbo_pstate(void)
+{
+ u64 value;
+ rdmsrl(BYT_TURBO_RATIOS, value);
+ return value & 0x3F;
+}
+
static void byt_set_pstate(struct cpudata *cpudata, int pstate)
{
u64 val;
@@ -469,7 +478,7 @@ static struct cpu_defaults byt_params = {
.funcs = {
.get_max = byt_get_max_pstate,
.get_min = byt_get_min_pstate,
- .get_turbo = byt_get_max_pstate,
+ .get_turbo = byt_get_turbo_pstate,
.set = byt_set_pstate,
.get_vid = byt_get_vid,
},