From: Xiao Feng Date: Fri, 11 Sep 2015 07:04:42 +0000 (+0800) Subject: ddrfreq: rockchip: read the parameters of auto-freq from dts X-Git-Tag: firefly_0821_release~3787 X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=31b19d3c436ad64cb9371dd78d2fc95fa32ea0c0;p=firefly-linux-kernel-4.4.55.git ddrfreq: rockchip: read the parameters of auto-freq from dts Change-Id: I50ff96bc66d929009da99b53c39d4b95567ad100 Signed-off-by: Xiao Feng --- diff --git a/arch/arm/mach-rockchip/ddr_freq.c b/arch/arm/mach-rockchip/ddr_freq.c index 26a1c1619211..470587b22efd 100644 --- a/arch/arm/mach-rockchip/ddr_freq.c +++ b/arch/arm/mach-rockchip/ddr_freq.c @@ -47,7 +47,7 @@ static int watch=0; static int high_load = 70; static int low_load = 60; static int auto_freq_interval_ms = 20; -static long down_rate_delay_ms = 500; +static int down_rate_delay_ms = 500; static unsigned long *auto_freq_table = NULL; static int cur_freq_index; static int auto_freq_table_size; @@ -938,6 +938,14 @@ int of_init_ddr_freq_table(void) bd_freq_table = of_get_bd_freq_table(clk_ddr_dev_node, "bd-freq-table"); + of_property_read_u32_index(clk_ddr_dev_node, "high_load", 0, + &high_load); + of_property_read_u32_index(clk_ddr_dev_node, "low_load", 0, &low_load); + of_property_read_u32_index(clk_ddr_dev_node, "auto_freq_interval", 0, + &auto_freq_interval_ms); + of_property_read_u32_index(clk_ddr_dev_node, "down_rate_delay", 0, + &down_rate_delay_ms); + return 0; } @@ -1063,7 +1071,7 @@ static ssize_t ddrbw_dyn_show(struct kobject *kobj, struct kobj_attribute *attr, str += sprintf(str, "high_load: %d\n", high_load); str += sprintf(str, "low_load: %d\n", low_load); str += sprintf(str, "auto_freq_interval_ms: %d\n", auto_freq_interval_ms); - str += sprintf(str, "down_rate_delay_ms: %ld\n", down_rate_delay_ms); + str += sprintf(str, "down_rate_delay_ms: %d\n", down_rate_delay_ms); // str += sprintf(str, "low_load_last_ms: %d\n", low_load_last_ms); if (str != buf) *(str - 1) = '\n';