[PATCH] cpufreq: mt8173: Add support for MT8176 and MT817x compatibles
From: Daniel Kurtz <hidden>
Date: 2017-03-02 10:44:16
The Mediatek MT8173 is just on of several SOCs from the same MT817x family, including the 6-core (4-little/2-big) MT8176. The mt8173-cpufreq driver supports all of these SOCs, however, machines using them may use a different machine compatible. Since this driver checks explicitly for the machine compatible string, add support for the whole family. Signed-off-by: Daniel Kurtz <redacted> --- This patch is based on the compatibles added by the MT8176 series: https://patchwork.kernel.org/patch/9573209/ https://patchwork.kernel.org/patch/9573213/ drivers/cpufreq/mt8173-cpufreq.c | 25 +++++++++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-)
diff --git a/drivers/cpufreq/mt8173-cpufreq.c b/drivers/cpufreq/mt8173-cpufreq.c
index ab25b1235a5e..07f7aac56f31 100644
--- a/drivers/cpufreq/mt8173-cpufreq.c
+++ b/drivers/cpufreq/mt8173-cpufreq.c@@ -573,13 +573,34 @@ static struct platform_driver mt8173_cpufreq_platdrv = { .probe = mt8173_cpufreq_probe, }; +/* List of machine compatible strings supported by this driver */ +static const char *mt8173_cpufreq_machines[] = { + "mediatek,mt817x", + "mediatek,mt8173", + "mediatek,mt8176", +}; + +static int mt8173_cpufreq_is_compatible(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(mt8173_cpufreq_machines); i++) + if (of_machine_is_compatible(mt8173_cpufreq_machines[i])) + return 0; + + return -ENODEV; +} + static int mt8173_cpufreq_driver_init(void) { struct platform_device *pdev; int err; - if (!of_machine_is_compatible("mediatek,mt8173")) - return -ENODEV; + err = mt8173_cpufreq_is_compatible(); + if (err) { + pr_err("Machine is not compatible with 'mediatek,mt8173'\n"); + return err; + } err = platform_driver_register(&mt8173_cpufreq_platdrv); if (err)
--
2.12.0.rc1.440.g5b76565f74-goog