diff options
author | Paul Walmsley <paul@pwsan.com> | 2012-09-23 17:27:43 -0600 |
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committer | Paul Walmsley <paul@pwsan.com> | 2012-09-23 17:27:43 -0600 |
commit | 4fb85d35bcec842e0f20437aea277157973aa45f (patch) | |
tree | d3b865af2f4066f68828806b231e4bb5b4de9ec8 /arch/arm/mach-omap2/dpll3xxx.c | |
parent | 1e2ee2a60df5c3ab74dd1c9155fb01b5bc6f807d (diff) | |
parent | a86c0b9867940bd0ba78f109686079b4051a463d (diff) | |
download | linux-4fb85d35bcec842e0f20437aea277157973aa45f.tar.bz2 |
Merge branch 'clock_devel_3.7' into hwmod_prcm_clock_a_3.7
Conflicts:
arch/arm/mach-omap2/clkt34xx_dpll3m2.c
arch/arm/mach-omap2/clkt_clksel.c
arch/arm/mach-omap2/clock.c
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; } |