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| author | Lukasz Majewski <l.majewski@samsung.com> | 2014-07-18 16:16:04 +0200 |
|---|---|---|
| committer | Chanho Park <chanho61.park@samsung.com> | 2014-11-18 12:00:07 +0900 |
| commit | 000c6aff96581d8143232538473e971edc502936 (patch) | |
| tree | ffcbdb067150f4cae86ef7144cc3fcec554297c4 /drivers/cpufreq/exynos-cpufreq.c | |
| parent | c1fa2e22c3439882477d96b699a53da01adcc12e (diff) | |
| download | linux-3.10-000c6aff96581d8143232538473e971edc502936.tar.gz linux-3.10-000c6aff96581d8143232538473e971edc502936.tar.bz2 linux-3.10-000c6aff96581d8143232538473e971edc502936.zip | |
arm: odroid: cpufreq: Support for frequency up to 1.7 GHz
Values used for supporting Odroid U3 frequencies were taken from Odroid repo:
https://github.com/hardkernel/linux.git
branch odroid-3.8.y
config arch/arm/configs/odroidu_defconfig
Three new frequencies have been added: 1.6, 1.704 and 1.8 GHz.
It is important to note, that in the device tree cpufreq node one just
needs to specify the list of supported frequencies at the freq_table
attribute.
Change-Id: I416a35b99da9c341f92648541c81238a51dc362f
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Diffstat (limited to 'drivers/cpufreq/exynos-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/exynos-cpufreq.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c index 0bd56da3cdf..feda2e5fcdd 100644 --- a/drivers/cpufreq/exynos-cpufreq.c +++ b/drivers/cpufreq/exynos-cpufreq.c @@ -332,8 +332,8 @@ struct cpufreq_frequency_table *exynos_of_parse_freq_table( { struct device_node *node = info->dev->of_node; struct cpufreq_frequency_table *ft, *ret = NULL; + int len, num, i = 0, k; struct property *pp; - int len, num, i = 0; u32 *of_f_tab; if (!node) @@ -366,29 +366,29 @@ struct cpufreq_frequency_table *exynos_of_parse_freq_table( } /* - * Here + 2 is required for CPUFREQ_ENTRY_INVALID and - * CPUFREQ_TABLE_END + * Here + 1 is required for CPUFREQ_TABLE_END * * Number of those entries must correspond to the apll_freq_4412 table */ - ft = kzalloc(sizeof(struct cpufreq_frequency_table) * (num + 2), - GFP_KERNEL); + ft = kzalloc(sizeof(struct cpufreq_frequency_table) * + (info->freq_levels + 1), GFP_KERNEL); if (!ft) { pr_err("%s: Allocation failed\n", __func__); goto err_of_f_tab; } - ft[0].index = L0; - ft[0].frequency = CPUFREQ_ENTRY_INVALID; + i = info->freq_levels; + ft[i].index = 0; + ft[i].frequency = CPUFREQ_TABLE_END; - for (i = 1; i <= num; i++) { + for (i--, k = num - 1; i >= 0; i--, k--) { ft[i].index = i; - ft[i].frequency = of_f_tab[i-1]; + if (k < 0) + ft[i].frequency = CPUFREQ_ENTRY_INVALID; + else + ft[i].frequency = of_f_tab[k]; } - ft[i].index = 0; - ft[i].frequency = CPUFREQ_TABLE_END; - ret = ft; err_of_f_tab: |