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authorLinus Torvalds <torvalds@linux-foundation.org>2014-10-15 09:05:03 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-15 09:05:03 +0400
commitc0fa2373f8cfed90437d8d7b17e0b1a84009a10a (patch)
tree43fb2edd0c11874d0b2e56714e53894d10321e19 /drivers/cpufreq
parentfcc3a5d277571bc6048e7b4ef8cd391b935de629 (diff)
parent98d147f50eb0ce4328e013f5f2c076896003c761 (diff)
downloadlinux-c0fa2373f8cfed90437d8d7b17e0b1a84009a10a.tar.xz
Merge tag 'clk-for-linus-3.18' of git://git.linaro.org/people/mike.turquette/linux
Pull clock tree updates from Mike Turquette: "The clk tree changes for 3.18 are dominated by clock drivers. Mostly fixes and enhancements to existing drivers as well as new drivers. This tag contains a bit more arch code than I usually take due to some OMAP2+ changes. Additionally it contains the restart notifier handlers which are merged as a dependency into several trees. The PXA changes are the only messy part. Due to having a stable tree I had to revert one patch and follow up with one more fix near the tip of this tag. Some dead code is introduced but it will soon become live code after 3.18-rc1 is released as the rest of the PXA family is converted over to the common clock framework. Another trend in this tag is that multiple vendors have started to push the complexity of changing their CPU frequency into the clock driver, whereas this used to be done in CPUfreq drivers. Changes to the clk core include a generic gpio-clock type and a clk_set_phase() function added to the top-level clk.h api. Due to some confusion on the fbdev mailing list the kernel boot parameters documentation was updated to further explain the clk_ignore_unused parameter, which is often required by users of the simplefb driver. Finally some fixes to the locking around the clock debugfs stuff was done to prevent deadlocks when interacting with other subsystems." * tag 'clk-for-linus-3.18' of git://git.linaro.org/people/mike.turquette/linux: (99 commits) clk: pxa clocks build system fix Revert "arm: pxa: Transition pxa27x to clk framework" clk: samsung: register restart handlers for s3c2412 and s3c2443 clk: rockchip: add restart handler clk: rockchip: rk3288: i2s_frac adds flag to set parent's rate doc/kernel-parameters.txt: clarify clk_ignore_unused arm: pxa: Transition pxa27x to clk framework dts: add devicetree bindings for pxa27x clocks clk: add pxa27x clock drivers arm: pxa: add clock pll selection bits clk: dts: document pxa clock binding clk: add pxa clocks infrastructure clk: gpio-gate: Ensure gpiod_ APIs are prototyped clk: ti: dra7-atl-clock: Mark the device as pm_runtime_irq_safe clk: ti: LLVMLinux: Move __init outside of type definition clk: ti: consider the fact that of_clk_get() might return an error clk: ti: dra7-atl-clock: fix a memory leak clk: ti: change clock init to use generic of_clk_init clk: hix5hd2: add I2C clocks clk: hix5hd2: add watchdog0 clocks ...
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/kirkwood-cpufreq.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index 37a480680cd0..7906d4acfe40 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -12,7 +12,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/clk.h>
-#include <linux/clk-provider.h>
#include <linux/cpufreq.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
@@ -39,8 +38,7 @@ static struct priv
* - cpu clk
* - ddr clk
*
- * The frequencies are set at runtime before registering this *
- * table.
+ * The frequencies are set at runtime before registering this table.
*/
static struct cpufreq_frequency_table kirkwood_freq_table[] = {
{0, STATE_CPU_FREQ, 0}, /* CPU uses cpuclk */
@@ -50,9 +48,7 @@ static struct cpufreq_frequency_table kirkwood_freq_table[] = {
static unsigned int kirkwood_cpufreq_get_cpu_frequency(unsigned int cpu)
{
- if (__clk_is_enabled(priv.powersave_clk))
- return kirkwood_freq_table[1].frequency;
- return kirkwood_freq_table[0].frequency;
+ return clk_get_rate(priv.powersave_clk) / 1000;
}
static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
@@ -70,10 +66,10 @@ static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
switch (state) {
case STATE_CPU_FREQ:
- clk_disable(priv.powersave_clk);
+ clk_set_parent(priv.powersave_clk, priv.cpu_clk);
break;
case STATE_DDR_FREQ:
- clk_enable(priv.powersave_clk);
+ clk_set_parent(priv.powersave_clk, priv.ddr_clk);
break;
}
@@ -150,7 +146,7 @@ static int kirkwood_cpufreq_probe(struct platform_device *pdev)
err = PTR_ERR(priv.powersave_clk);
goto out_ddr;
}
- clk_prepare(priv.powersave_clk);
+ clk_prepare_enable(priv.powersave_clk);
of_node_put(np);
np = NULL;