diff options
| -rw-r--r-- | pvr-source/services4/system/omap4/sgxfreq.c | 20 | ||||
| -rw-r--r-- | pvr-source/services4/system/omap4/sysconfig.h | 2 |
2 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 56123ae..8d3e96f 100644 --- a/pvr-source/services4/system/omap4/sgxfreq.c +++ b/pvr-source/services4/system/omap4/sgxfreq.c @@ -208,6 +208,24 @@ static const struct attribute *sgxfreq_attributes[] = { /************************ end sysfs interface ************************/ +static unsigned long __sgxfreq_get_max_safe_freq(void) +{ + int i; + unsigned long reference_freq = SYS_SGX_CLOCK_SPEED; + unsigned long freq; + + if (!cpu_is_omap443x()) + reference_freq = OMAP446X_447X_REFERNECE_FREQUENCY; + + for (i = sfd.freq_cnt - 1; i >= 0; i--) { + freq = sfd.freq_list[i]; + if (freq <= reference_freq) + return freq; + } + + return reference_freq; +} + static void __set_freq(void) { unsigned long freq; @@ -334,7 +352,7 @@ int sgxfreq_init(struct device *dev) rcu_read_unlock(); mutex_init(&sfd.freq_mutex); - sfd.freq_limit = SYS_SGX_CLOCK_SPEED; + sfd.freq_limit = __sgxfreq_get_max_safe_freq(); sgxfreq_set_freq_request(sfd.freq_list[sfd.freq_cnt - 1]); sfd.sgx_data.clk_on = false; sfd.sgx_data.active = false; diff --git a/pvr-source/services4/system/omap4/sysconfig.h b/pvr-source/services4/system/omap4/sysconfig.h index 64f3187..5a9c8f1 100644 --- a/pvr-source/services4/system/omap4/sysconfig.h +++ b/pvr-source/services4/system/omap4/sysconfig.h @@ -51,6 +51,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #define SYS_SGX_CLOCK_SPEED 304742400 #endif +#define OMAP446X_447X_REFERNECE_FREQUENCY 384000000 + #define SYS_SGX_HWRECOVERY_TIMEOUT_FREQ (100) // 10ms (100hz) #define SYS_SGX_PDS_TIMER_FREQ (1000) // 1ms (1000hz) |