The OMAP2 MPU virtual clock node code attempted to call clk_get_rate() while the clockfw_lock spinlock was held. Fix by reading the sys_ck rate directly.
Signed-off-by: Paul Walmsley <[email protected]> --- arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 17 ++++------------- 1 files changed, 4 insertions(+), 13 deletions(-) diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c index e60ca4e..aef6291 100644 --- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c +++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c @@ -68,16 +68,13 @@ long omap2_round_to_table_rate(struct clk *clk, unsigned long rate) { const struct prcm_config *ptr; long highest_rate; - long sys_ck_rate; - - sys_ck_rate = clk_get_rate(sclk); highest_rate = -EINVAL; for (ptr = rate_table; ptr->mpu_speed; ptr++) { if (!(ptr->flags & cpu_mask)) continue; - if (ptr->xtal_speed != sys_ck_rate) + if (ptr->xtal_speed != sclk->rate) continue; highest_rate = ptr->mpu_speed; @@ -96,15 +93,12 @@ int omap2_select_table_rate(struct clk *clk, unsigned long rate) const struct prcm_config *prcm; unsigned long found_speed = 0; unsigned long flags; - long sys_ck_rate; - - sys_ck_rate = clk_get_rate(sclk); for (prcm = rate_table; prcm->mpu_speed; prcm++) { if (!(prcm->flags & cpu_mask)) continue; - if (prcm->xtal_speed != sys_ck_rate) + if (prcm->xtal_speed != sclk->rate) continue; if (prcm->mpu_speed <= rate) { @@ -181,19 +175,16 @@ static struct cpufreq_frequency_table *freq_table; void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table) { const struct prcm_config *prcm; - long sys_ck_rate; int i = 0; int tbl_sz = 0; if (!cpu_is_omap24xx()) return; - sys_ck_rate = clk_get_rate(sclk); - for (prcm = rate_table; prcm->mpu_speed; prcm++) { if (!(prcm->flags & cpu_mask)) continue; - if (prcm->xtal_speed != sys_ck_rate) + if (prcm->xtal_speed != sclk->rate) continue; /* don't put bypass rates in table */ @@ -226,7 +217,7 @@ void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table) for (prcm = rate_table; prcm->mpu_speed; prcm++) { if (!(prcm->flags & cpu_mask)) continue; - if (prcm->xtal_speed != sys_ck_rate) + if (prcm->xtal_speed != sclk->rate) continue; /* don't put bypass rates in table */ -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
