| Message ID | 1401374319-4480-2-git-send-email-thomas.ab@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 05/29/2014 09:38 AM, Thomas Abraham wrote: > From: Thomas Abraham <thomas.ab@samsung.com> > > Commit 6f19efc0 ("cpufreq: Add boost frequency support in core") adds > support for CPU boost mode. This patch adds support for finding available > boost frequencies from device tree and marking them as usable in boost mode. > > Cc: Nishanth Menon <nm@ti.com> > Cc: Lukasz Majewski <l.majewski@samsung.com> > Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> > --- > drivers/cpufreq/cpufreq_opp.c | 45 +++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 45 insertions(+) > > diff --git a/drivers/cpufreq/cpufreq_opp.c b/drivers/cpufreq/cpufreq_opp.c > index c0c6f4a..05fb115 100644 > --- a/drivers/cpufreq/cpufreq_opp.c > +++ b/drivers/cpufreq/cpufreq_opp.c > @@ -19,6 +19,7 @@ > #include <linux/pm_opp.h> > #include <linux/rcupdate.h> > #include <linux/slab.h> > +#include <linux/of.h> > > /** > * dev_pm_opp_init_cpufreq_table() - create a cpufreq table for a device > @@ -51,6 +52,11 @@ int dev_pm_opp_init_cpufreq_table(struct device *dev, > struct cpufreq_frequency_table *freq_table = NULL; > int i, max_opps, ret = 0; > unsigned long rate; > +#ifdef CONFIG_CPU_FREQ_BOOST_SW > + struct cpufreq_frequency_table *ft; > + int len, count; > + u32 *boost_freqs = NULL; > +#endif > > rcu_read_lock(); > > @@ -82,6 +88,45 @@ int dev_pm_opp_init_cpufreq_table(struct device *dev, > > *table = &freq_table[0]; > > +#ifdef CONFIG_CPU_FREQ_BOOST_SW > + if (!of_find_property(dev->of_node, "boost-frequencies", &len)) > + goto out; > + > + if (!len || !IS_ALIGNED(len, sizeof(u32))) { > + dev_err(dev, "%s: invalid boost frequency\n", __func__); > + ret = -EINVAL; > + goto out; > + } > + > + boost_freqs = kmalloc(len, GFP_KERNEL); > + if (!boost_freqs) { > + dev_err(dev, "%s: no memory for boost freq table\n", __func__); > + ret = -ENOMEM; > + goto out; > + } > + > + count = len / sizeof(u32); > + of_property_read_u32_array(dev->of_node, "boost-frequencies", > + boost_freqs, count); > + > + for (i = 0; i < count; i++) { > + cpufreq_for_each_valid_entry(ft, *table) { > + if (boost_freqs[i] == ft->frequency) { > + ft->flags |= CPUFREQ_BOOST_FREQ; > + pr_debug("%s: marked %d as boost frequency\n", > + __func__, boost_freqs[i]); > + break; > + } > + } > + > + if (ft->frequency == CPUFREQ_TABLE_END) > + dev_err(dev, "%s: invalid boost frequency %d\n", > + __func__, boost_freqs[i]); > + } > + > + kfree(boost_freqs); > +#endif > + > out: > rcu_read_unlock(); > if (ret) > I suggest the following checkpatch --strict warnings should be fixed. @@ -0,0 +1,10 @@ +CHECK: Alignment should match open parenthesis +#65: FILE: drivers/cpufreq/cpufreq_opp.c:110: ++ of_property_read_u32_array(dev->of_node, "boost-frequencies", ++ boost_freqs, count); +CHECK: Alignment should match open parenthesis +#72: FILE: drivers/cpufreq/cpufreq_opp.c:117: ++ pr_debug("%s: marked %d as boost frequency\n", ++ __func__, boost_freqs[i]); +If any of these errors are false positives, please report +them to the maintainer, see CHECKPATCH in MAINTAINERS. Otherwise, For the entire series: Acked-by: Nishanth Menon <nm@ti.com>
Hi Thomas, > From: Thomas Abraham <thomas.ab@samsung.com> > > Commit 6f19efc0 ("cpufreq: Add boost frequency support in core") adds > support for CPU boost mode. This patch adds support for finding > available boost frequencies from device tree and marking them as > usable in boost mode. > > Cc: Nishanth Menon <nm@ti.com> > Cc: Lukasz Majewski <l.majewski@samsung.com> > Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> > --- > drivers/cpufreq/cpufreq_opp.c | 45 > +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 > insertions(+) > > diff --git a/drivers/cpufreq/cpufreq_opp.c > b/drivers/cpufreq/cpufreq_opp.c index c0c6f4a..05fb115 100644 > --- a/drivers/cpufreq/cpufreq_opp.c > +++ b/drivers/cpufreq/cpufreq_opp.c > @@ -19,6 +19,7 @@ > #include <linux/pm_opp.h> > #include <linux/rcupdate.h> > #include <linux/slab.h> > +#include <linux/of.h> > > /** > * dev_pm_opp_init_cpufreq_table() - create a cpufreq table for a > device @@ -51,6 +52,11 @@ int dev_pm_opp_init_cpufreq_table(struct > device *dev, struct cpufreq_frequency_table *freq_table = NULL; > int i, max_opps, ret = 0; > unsigned long rate; > +#ifdef CONFIG_CPU_FREQ_BOOST_SW > + struct cpufreq_frequency_table *ft; > + int len, count; > + u32 *boost_freqs = NULL; > +#endif > > rcu_read_lock(); > > @@ -82,6 +88,45 @@ int dev_pm_opp_init_cpufreq_table(struct device > *dev, > *table = &freq_table[0]; > > +#ifdef CONFIG_CPU_FREQ_BOOST_SW > + if (!of_find_property(dev->of_node, "boost-frequencies", > &len)) > + goto out; > + > + if (!len || !IS_ALIGNED(len, sizeof(u32))) { > + dev_err(dev, "%s: invalid boost frequency\n", > __func__); > + ret = -EINVAL; > + goto out; > + } > + > + boost_freqs = kmalloc(len, GFP_KERNEL); > + if (!boost_freqs) { > + dev_err(dev, "%s: no memory for boost freq table\n", > __func__); > + ret = -ENOMEM; > + goto out; > + } > + > + count = len / sizeof(u32); > + of_property_read_u32_array(dev->of_node, "boost-frequencies", > + boost_freqs, count); > + > + for (i = 0; i < count; i++) { > + cpufreq_for_each_valid_entry(ft, *table) { > + if (boost_freqs[i] == ft->frequency) { > + ft->flags |= CPUFREQ_BOOST_FREQ; > + pr_debug("%s: marked %d as boost > frequency\n", > + __func__, boost_freqs[i]); > + break; > + } > + } > + > + if (ft->frequency == CPUFREQ_TABLE_END) > + dev_err(dev, "%s: invalid boost frequency > %d\n", > + __func__, boost_freqs[i]); > + } > + > + kfree(boost_freqs); > +#endif > + > out: > rcu_read_unlock(); > if (ret) Acked-by: Lukasz Majewski <l.majewski@samsung.com> Thomas, thanks for this patch.
diff --git a/drivers/cpufreq/cpufreq_opp.c b/drivers/cpufreq/cpufreq_opp.c index c0c6f4a..05fb115 100644 --- a/drivers/cpufreq/cpufreq_opp.c +++ b/drivers/cpufreq/cpufreq_opp.c @@ -19,6 +19,7 @@ #include <linux/pm_opp.h> #include <linux/rcupdate.h> #include <linux/slab.h> +#include <linux/of.h> /** * dev_pm_opp_init_cpufreq_table() - create a cpufreq table for a device @@ -51,6 +52,11 @@ int dev_pm_opp_init_cpufreq_table(struct device *dev, struct cpufreq_frequency_table *freq_table = NULL; int i, max_opps, ret = 0; unsigned long rate; +#ifdef CONFIG_CPU_FREQ_BOOST_SW + struct cpufreq_frequency_table *ft; + int len, count; + u32 *boost_freqs = NULL; +#endif rcu_read_lock(); @@ -82,6 +88,45 @@ int dev_pm_opp_init_cpufreq_table(struct device *dev, *table = &freq_table[0]; +#ifdef CONFIG_CPU_FREQ_BOOST_SW + if (!of_find_property(dev->of_node, "boost-frequencies", &len)) + goto out; + + if (!len || !IS_ALIGNED(len, sizeof(u32))) { + dev_err(dev, "%s: invalid boost frequency\n", __func__); + ret = -EINVAL; + goto out; + } + + boost_freqs = kmalloc(len, GFP_KERNEL); + if (!boost_freqs) { + dev_err(dev, "%s: no memory for boost freq table\n", __func__); + ret = -ENOMEM; + goto out; + } + + count = len / sizeof(u32); + of_property_read_u32_array(dev->of_node, "boost-frequencies", + boost_freqs, count); + + for (i = 0; i < count; i++) { + cpufreq_for_each_valid_entry(ft, *table) { + if (boost_freqs[i] == ft->frequency) { + ft->flags |= CPUFREQ_BOOST_FREQ; + pr_debug("%s: marked %d as boost frequency\n", + __func__, boost_freqs[i]); + break; + } + } + + if (ft->frequency == CPUFREQ_TABLE_END) + dev_err(dev, "%s: invalid boost frequency %d\n", + __func__, boost_freqs[i]); + } + + kfree(boost_freqs); +#endif + out: rcu_read_unlock(); if (ret)