diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-07 13:55:16 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-07 13:55:16 +0200 |
commit | 5e090ed7af10729a396a25df43d69a236e789736 (patch) | |
tree | 09ba2dd9974b5224721fbc413bcf6ac9b2ac73f9 /arch/arm/mach-omap2/dpll3xxx.c | |
parent | Merge tag 'defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/ar... (diff) | |
parent | Merge branch 'late/kirkwood' into late/soc (diff) | |
download | linux-5e090ed7af10729a396a25df43d69a236e789736.tar.xz linux-5e090ed7af10729a396a25df43d69a236e789736.zip |
Merge tag 'soc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull late ARM soc platform updates from Olof Johansson:
"This branch contains updates to OMAP and Marvell platforms (kirkwood,
dove, mvebu) that came in after we had done the big multiplatform
merges, so they were kept separate from the rest, and not separated
into the traditional topics of cleanup/driver/platform features.
For OMAP, the updates are:
- Runtime PM conversions for the GPMC and RNG IP blocks
- Preparation patches for the OMAP common clock framework conversion
- clkdev alias additions required by other drivers
- Performance Monitoring Unit (PMU) support for OMAP2, 3, and
non-4430 OMAP4
- OMAP hwmod code and data improvements
- Preparation patches for the IOMMU runtime PM conversion
- Preparation patches for OMAP4 full-chip retention support
For Kirkwood/Dove/mvebu:
- New driver for "address decoder controller" for mvebu, which is a
piece of hardware that configures addressable devices and
peripherals. First user is the boot rom aperture on armada XP
since it is needed for SMP support.
- New device tree bindings for peripherals such as gpio-fan, iconnect
nand, mv_cesa and the above address decoder controller.
- Some defconfig updates, mostly to enable new DT boards and a few
drivers.
- New drivers using the pincontrol subsystem for dove, kirkwood and
mvebu
- New clean gpio driver for mvebu"
* tag 'soc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (98 commits)
ARM: mvebu: fix build breaks from multi-platform conversion
ARM: OMAP4460/4470: PMU: Enable PMU for OMAP4460/70
ARM: OMAP2+: PMU: Add runtime PM support
ARM: OMAP4430: PMU: prepare to create PMU device via HWMOD
ARM: OMAP2+: PMU: Convert OMAP2/3 devices to use HWMOD
ARM: OMAP3: hwmod data: Add debugss HWMOD data
ARM: OMAP2+: clockdomain/hwmod: add workaround for EMU clockdomain idle problems
ARM: OMAP: Add a timer attribute for timers that can interrupt the DSP
hwrng: OMAP: remove SoC restrictions from driver registration
ARM: OMAP: split OMAP1, OMAP2+ RNG device registration
hwrng: OMAP: convert to use runtime PM
hwrng: OMAP: store per-device data in per-device variables, not file statics
ARM: OMAP2xxx: hwmod/CM: add RNG integration data
ARM: OMAP2+: gpmc: minimal driver support
ARM: OMAP2+: gpmc: Adapt to HWMOD
ARM: OMAP2/3: hwmod data: add gpmc
ARM: OMAP4: hwmod data: add mmu hwmod for ipu and dsp
ARM: OMAP3: hwmod data: add mmu data for iva and isp
ARM: OMAP: iommu: fix including iommu.h without IOMMU_API selected
ARM: OMAP4: hwmod data: add missing HWMOD_NO_IDLEST flags to some PRCM IP blocks
...
Diffstat (limited to 'arch/arm/mach-omap2/dpll3xxx.c')
-rw-r--r-- | arch/arm/mach-omap2/dpll3xxx.c | 48 |
1 files changed, 28 insertions, 20 deletions
diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c index 27d79deb4ba2..814e1808e158 100644 --- a/arch/arm/mach-omap2/dpll3xxx.c +++ b/arch/arm/mach-omap2/dpll3xxx.c @@ -63,8 +63,10 @@ static int _omap3_wait_dpll_status(struct clk *clk, u8 state) const struct dpll_data *dd; int i = 0; int ret = -EINVAL; + const char *clk_name; dd = clk->dpll_data; + clk_name = __clk_get_name(clk); state <<= __ffs(dd->idlest_mask); @@ -76,10 +78,10 @@ static int _omap3_wait_dpll_status(struct clk *clk, u8 state) if (i == MAX_DPLL_WAIT_TRIES) { printk(KERN_ERR "clock: %s failed transition to '%s'\n", - clk->name, (state) ? "locked" : "bypassed"); + clk_name, (state) ? "locked" : "bypassed"); } else { pr_debug("clock: %s transition to '%s' in %d loops\n", - clk->name, (state) ? "locked" : "bypassed", i); + clk_name, (state) ? "locked" : "bypassed", i); ret = 0; } @@ -93,7 +95,7 @@ static u16 _omap3_dpll_compute_freqsel(struct clk *clk, u8 n) unsigned long fint; u16 f = 0; - fint = clk->dpll_data->clk_ref->rate / n; + fint = __clk_get_rate(clk->dpll_data->clk_ref) / n; pr_debug("clock: fint is %lu\n", fint); @@ -140,7 +142,7 @@ static int _omap3_noncore_dpll_lock(struct clk *clk) u8 state = 1; int r = 0; - pr_debug("clock: locking DPLL %s\n", clk->name); + pr_debug("clock: locking DPLL %s\n", __clk_get_name(clk)); dd = clk->dpll_data; state <<= __ffs(dd->idlest_mask); @@ -187,7 +189,7 @@ static int _omap3_noncore_dpll_bypass(struct clk *clk) return -EINVAL; pr_debug("clock: configuring DPLL %s for low-power bypass\n", - clk->name); + __clk_get_name(clk)); ai = omap3_dpll_autoidle_read(clk); @@ -217,7 +219,7 @@ static int _omap3_noncore_dpll_stop(struct clk *clk) if (!(clk->dpll_data->modes & (1 << DPLL_LOW_POWER_STOP))) return -EINVAL; - pr_debug("clock: stopping DPLL %s\n", clk->name); + pr_debug("clock: stopping DPLL %s\n", __clk_get_name(clk)); ai = omap3_dpll_autoidle_read(clk); @@ -245,7 +247,7 @@ static void _lookup_dco(struct clk *clk, u8 *dco, u16 m, u8 n) { unsigned long fint, clkinp; /* watch out for overflow */ - clkinp = clk->parent->rate; + clkinp = __clk_get_rate(__clk_get_parent(clk)); fint = (clkinp / n) * m; if (fint < 1000000000) @@ -271,7 +273,7 @@ static void _lookup_sddiv(struct clk *clk, u8 *sd_div, u16 m, u8 n) unsigned long clkinp, sd; /* watch out for overflow */ int mod1, mod2; - clkinp = clk->parent->rate; + clkinp = __clk_get_rate(__clk_get_parent(clk)); /* * target sigma-delta to near 250MHz @@ -380,16 +382,19 @@ int omap3_noncore_dpll_enable(struct clk *clk) { int r; struct dpll_data *dd; + struct clk *parent; dd = clk->dpll_data; if (!dd) return -EINVAL; - if (clk->rate == dd->clk_bypass->rate) { - WARN_ON(clk->parent != dd->clk_bypass); + parent = __clk_get_parent(clk); + + if (__clk_get_rate(clk) == __clk_get_rate(dd->clk_bypass)) { + WARN_ON(parent != dd->clk_bypass); r = _omap3_noncore_dpll_bypass(clk); } else { - WARN_ON(clk->parent != dd->clk_ref); + WARN_ON(parent != dd->clk_ref); r = _omap3_noncore_dpll_lock(clk); } /* @@ -432,7 +437,7 @@ void omap3_noncore_dpll_disable(struct clk *clk) int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate) { struct clk *new_parent = NULL; - unsigned long hw_rate; + unsigned long hw_rate, bypass_rate; u16 freqsel = 0; struct dpll_data *dd; int ret; @@ -456,7 +461,8 @@ int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate) omap2_clk_enable(dd->clk_bypass); omap2_clk_enable(dd->clk_ref); - if (dd->clk_bypass->rate == rate && + bypass_rate = __clk_get_rate(dd->clk_bypass); + if (bypass_rate == rate && (clk->dpll_data->modes & (1 << DPLL_LOW_POWER_BYPASS))) { pr_debug("clock: %s: set rate: entering bypass.\n", clk->name); @@ -479,7 +485,7 @@ int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate) } pr_debug("clock: %s: set rate: locking rate to %lu.\n", - clk->name, rate); + __clk_get_name(clk), rate); ret = omap3_noncore_dpll_program(clk, dd->last_rounded_m, dd->last_rounded_n, freqsel); @@ -557,7 +563,7 @@ void omap3_dpll_allow_idle(struct clk *clk) if (!dd->autoidle_reg) { pr_debug("clock: DPLL %s: autoidle not supported\n", - clk->name); + __clk_get_name(clk)); return; } @@ -591,7 +597,7 @@ void omap3_dpll_deny_idle(struct clk *clk) if (!dd->autoidle_reg) { pr_debug("clock: DPLL %s: autoidle not supported\n", - clk->name); + __clk_get_name(clk)); return; } @@ -617,11 +623,12 @@ unsigned long omap3_clkoutx2_recalc(struct clk *clk) unsigned long rate; u32 v; struct clk *pclk; + unsigned long parent_rate; /* Walk up the parents of clk, looking for a DPLL */ - pclk = clk->parent; + pclk = __clk_get_parent(clk); while (pclk && !pclk->dpll_data) - pclk = pclk->parent; + pclk = __clk_get_parent(pclk); /* clk does not have a DPLL as a parent? error in the clock data */ if (!pclk) { @@ -633,12 +640,13 @@ unsigned long omap3_clkoutx2_recalc(struct clk *clk) WARN_ON(!dd->enable_mask); + parent_rate = __clk_get_rate(__clk_get_parent(clk)); v = __raw_readl(dd->control_reg) & dd->enable_mask; v >>= __ffs(dd->enable_mask); if ((v != OMAP3XXX_EN_DPLL_LOCKED) || (dd->flags & DPLL_J_TYPE)) - rate = clk->parent->rate; + rate = parent_rate; else - rate = clk->parent->rate * 2; + rate = parent_rate * 2; return rate; } |