diff options
Diffstat (limited to 'pvr-source/services4/system/omap4/sgxfreq.c')
| -rw-r--r-- | pvr-source/services4/system/omap4/sgxfreq.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/pvr-source/services4/system/omap4/sgxfreq.c b/pvr-source/services4/system/omap4/sgxfreq.c index 7e8e8fd..65543a5 100644 --- a/pvr-source/services4/system/omap4/sgxfreq.c +++ b/pvr-source/services4/system/omap4/sgxfreq.c @@ -107,6 +107,26 @@ static ssize_t show_frequency_limit(struct device *dev, return sprintf(buf, "%lu\n", sfd.freq_limit); } +/* + * sysfs interface to store sgxfreq frequency limit + * author: ketut.kumajaya@gmail.com +*/ +static ssize_t store_frequency_limit(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + unsigned long freq_limit; + + if (kstrtoul(buf, 0, &freq_limit)) { + pr_err("sgxfreq: failed storing frequency_limit\n"); + return -EINVAL; + } + + freq_limit = sgxfreq_set_freq_limit(freq_limit); + pr_info("sgxfreq: frequency_limit=%lu\n", freq_limit); + return count; +} + static ssize_t show_frequency(struct device *dev, struct device_attribute *attr, char *buf) @@ -169,7 +189,7 @@ static ssize_t store_governor(struct device *dev, static DEVICE_ATTR(frequency_list, 0444, show_frequency_list, NULL); static DEVICE_ATTR(frequency_request, 0444, show_frequency_request, NULL); -static DEVICE_ATTR(frequency_limit, 0444, show_frequency_limit, NULL); +static DEVICE_ATTR(frequency_limit, 0644, show_frequency_limit, store_frequency_limit); static DEVICE_ATTR(frequency, 0444, show_frequency, NULL); static DEVICE_ATTR(governor_list, 0444, show_governor_list, NULL); static DEVICE_ATTR(governor, 0644, show_governor, store_governor); |