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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-02 08:56:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-02 08:56:55 -0700
commit4d26aa305414dbb33b3c32fb205b68004cda8ffc (patch)
tree78da855745406afc870ea3454e584907f7cccb73 /arch/arm/mach-omap2/dpll3xxx.c
parent600fe9751aeb6f6b72de84076a05c5b8c04152c0 (diff)
parente74fc973b6e531fef1fce8b101ffff05ecfb774c (diff)
downloadolio-linux-3.10-4d26aa305414dbb33b3c32fb205b68004cda8ffc.tar.xz
olio-linux-3.10-4d26aa305414dbb33b3c32fb205b68004cda8ffc.zip
Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC non-critical fixes from Olof Johansson: "Here is a collection of fixes (and some intermixed cleanups) that were considered less important and thus not included in the later parts of the 3.9-rc cycle. It's a bit all over the map, contents wise. A series of ux500 fixes and cleanups, a bunch of various fixes for OMAP and tegra, and some for Freescale i.MX and even Qualcomm MSM. Note that there's also a patch on this branch to globally turn off -Wmaybe-uninitialized when building with -Os. It's been posted several times by Arnd and no dissent was raised, but nobody seemed interested to pick it up. So here it is, as the topmost patch." * tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits) Turn off -Wmaybe-uninitialized when building with -Os ARM: orion5x: include linux/cpu.h ARM: tegra: call cpu_do_idle from C code ARM: u300: fix ages old copy/paste bug ARM: OMAP2+: add dependencies on ARCH_MULTI_V6/V7 ARM: tegra: solve adr range issue with THUMB2_KERNEL enabled ARM: tegra: fix relocation truncated error when THUMB2_KERNEL enabled ARM: tegra: fix build error when THUMB2_KERNEL enabled ARM: msm: Fix uncompess.h tx underrun check ARM: vexpress: Remove A9 PMU compatible values for non-A9 platforms ARM: cpuimx27 and mbimx27: prepend CONFIG_ to Kconfig macro ARM: OMAP2+: fix typo "CONFIG_BRIDGE_DVFS" ARM: OMAP1: remove "config MACH_OMAP_HTCWIZARD" ARM: mach-imx: mach-imx6q: Fix sparse warnings ARM: mach-imx: src: Include "common.h ARM: mach-imx: gpc: Include "common.h" ARM: mach-imx: avic: Staticize *avic_base ARM: mach-imx: tzic: Staticize *tzic_base ARM: mach-imx: clk: Include "clk.h" ARM: mach-imx: clk-busy: Staticize clk_busy_mux_ops ...
Diffstat (limited to 'arch/arm/mach-omap2/dpll3xxx.c')
-rw-r--r--arch/arm/mach-omap2/dpll3xxx.c30
1 files changed, 14 insertions, 16 deletions
diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c
index 3aed4b0b956..3a0296cfcac 100644
--- a/arch/arm/mach-omap2/dpll3xxx.c
+++ b/arch/arm/mach-omap2/dpll3xxx.c
@@ -307,10 +307,10 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel)
_omap3_noncore_dpll_bypass(clk);
/*
- * Set jitter correction. No jitter correction for OMAP4 and 3630
- * since freqsel field is no longer present
+ * Set jitter correction. Jitter correction applicable for OMAP343X
+ * only since freqsel field is no longer present on other devices.
*/
- if (!soc_is_am33xx() && !cpu_is_omap44xx() && !cpu_is_omap3630()) {
+ if (cpu_is_omap343x()) {
v = __raw_readl(dd->control_reg);
v &= ~dd->freqsel_mask;
v |= freqsel << __ffs(dd->freqsel_mask);
@@ -480,29 +480,30 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
if (!dd)
return -EINVAL;
- __clk_prepare(dd->clk_bypass);
- clk_enable(dd->clk_bypass);
- __clk_prepare(dd->clk_ref);
- clk_enable(dd->clk_ref);
-
if (__clk_get_rate(dd->clk_bypass) == rate &&
(dd->modes & (1 << DPLL_LOW_POWER_BYPASS))) {
pr_debug("%s: %s: set rate: entering bypass.\n",
__func__, __clk_get_name(hw->clk));
+ __clk_prepare(dd->clk_bypass);
+ clk_enable(dd->clk_bypass);
ret = _omap3_noncore_dpll_bypass(clk);
if (!ret)
new_parent = dd->clk_bypass;
+ clk_disable(dd->clk_bypass);
+ __clk_unprepare(dd->clk_bypass);
} else {
+ __clk_prepare(dd->clk_ref);
+ clk_enable(dd->clk_ref);
+
if (dd->last_rounded_rate != rate)
rate = __clk_round_rate(hw->clk, rate);
if (dd->last_rounded_rate == 0)
return -EINVAL;
- /* No freqsel on AM335x, OMAP4 and OMAP3630 */
- if (!soc_is_am33xx() && !cpu_is_omap44xx() &&
- !cpu_is_omap3630()) {
+ /* Freqsel is available only on OMAP343X devices */
+ if (cpu_is_omap343x()) {
freqsel = _omap3_dpll_compute_freqsel(clk,
dd->last_rounded_n);
WARN_ON(!freqsel);
@@ -514,6 +515,8 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
ret = omap3_noncore_dpll_program(clk, freqsel);
if (!ret)
new_parent = dd->clk_ref;
+ clk_disable(dd->clk_ref);
+ __clk_unprepare(dd->clk_ref);
}
/*
* FIXME - this is all wrong. common code handles reparenting and
@@ -525,11 +528,6 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
if (!ret)
__clk_reparent(hw->clk, new_parent);
- clk_disable(dd->clk_ref);
- __clk_unprepare(dd->clk_ref);
- clk_disable(dd->clk_bypass);
- __clk_unprepare(dd->clk_bypass);
-
return 0;
}