mirror of
https://github.com/torvalds/linux.git
synced 2024-12-29 14:21:47 +00:00
47e161a787
IPQ6018 SoC series comes in multiple SKU-s, and not all of them support high frequency OPP points. SoC itself does however have a single bit in QFPROM to indicate the CPU speed-bin. That bit is used to indicate frequency limit of 1.5GHz, but that alone is not enough as IPQ6000 only goes up to 1.2GHz, but SMEM ID can be used to limit it further. IPQ6018 compatible is blacklisted from DT platdev as the cpufreq device will get created by NVMEM CPUFreq driver. Signed-off-by: Robert Marko <robimarko@gmail.com> [ Viresh: Fixed rebase conflict. ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
233 lines
6.5 KiB
C
233 lines
6.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (C) 2016 Linaro.
|
|
* Viresh Kumar <viresh.kumar@linaro.org>
|
|
*/
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include "cpufreq-dt.h"
|
|
|
|
/*
|
|
* Machines for which the cpufreq device is *always* created, mostly used for
|
|
* platforms using "operating-points" (V1) property.
|
|
*/
|
|
static const struct of_device_id allowlist[] __initconst = {
|
|
{ .compatible = "allwinner,sun4i-a10", },
|
|
{ .compatible = "allwinner,sun5i-a10s", },
|
|
{ .compatible = "allwinner,sun5i-a13", },
|
|
{ .compatible = "allwinner,sun5i-r8", },
|
|
{ .compatible = "allwinner,sun6i-a31", },
|
|
{ .compatible = "allwinner,sun6i-a31s", },
|
|
{ .compatible = "allwinner,sun7i-a20", },
|
|
{ .compatible = "allwinner,sun8i-a23", },
|
|
{ .compatible = "allwinner,sun8i-a83t", },
|
|
{ .compatible = "allwinner,sun8i-h3", },
|
|
|
|
{ .compatible = "apm,xgene-shadowcat", },
|
|
|
|
{ .compatible = "arm,integrator-ap", },
|
|
{ .compatible = "arm,integrator-cp", },
|
|
|
|
{ .compatible = "hisilicon,hi3660", },
|
|
|
|
{ .compatible = "fsl,imx27", },
|
|
{ .compatible = "fsl,imx51", },
|
|
{ .compatible = "fsl,imx53", },
|
|
|
|
{ .compatible = "marvell,berlin", },
|
|
{ .compatible = "marvell,pxa250", },
|
|
{ .compatible = "marvell,pxa270", },
|
|
|
|
{ .compatible = "samsung,exynos3250", },
|
|
{ .compatible = "samsung,exynos4210", },
|
|
{ .compatible = "samsung,exynos5250", },
|
|
#ifndef CONFIG_BL_SWITCHER
|
|
{ .compatible = "samsung,exynos5800", },
|
|
#endif
|
|
|
|
{ .compatible = "renesas,emev2", },
|
|
{ .compatible = "renesas,r7s72100", },
|
|
{ .compatible = "renesas,r8a73a4", },
|
|
{ .compatible = "renesas,r8a7740", },
|
|
{ .compatible = "renesas,r8a7742", },
|
|
{ .compatible = "renesas,r8a7743", },
|
|
{ .compatible = "renesas,r8a7744", },
|
|
{ .compatible = "renesas,r8a7745", },
|
|
{ .compatible = "renesas,r8a7778", },
|
|
{ .compatible = "renesas,r8a7779", },
|
|
{ .compatible = "renesas,r8a7790", },
|
|
{ .compatible = "renesas,r8a7791", },
|
|
{ .compatible = "renesas,r8a7792", },
|
|
{ .compatible = "renesas,r8a7793", },
|
|
{ .compatible = "renesas,r8a7794", },
|
|
{ .compatible = "renesas,sh73a0", },
|
|
|
|
{ .compatible = "rockchip,rk2928", },
|
|
{ .compatible = "rockchip,rk3036", },
|
|
{ .compatible = "rockchip,rk3066a", },
|
|
{ .compatible = "rockchip,rk3066b", },
|
|
{ .compatible = "rockchip,rk3188", },
|
|
{ .compatible = "rockchip,rk3228", },
|
|
{ .compatible = "rockchip,rk3288", },
|
|
{ .compatible = "rockchip,rk3328", },
|
|
{ .compatible = "rockchip,rk3366", },
|
|
{ .compatible = "rockchip,rk3368", },
|
|
{ .compatible = "rockchip,rk3399",
|
|
.data = &(struct cpufreq_dt_platform_data)
|
|
{ .have_governor_per_policy = true, },
|
|
},
|
|
|
|
{ .compatible = "st-ericsson,u8500", },
|
|
{ .compatible = "st-ericsson,u8540", },
|
|
{ .compatible = "st-ericsson,u9500", },
|
|
{ .compatible = "st-ericsson,u9540", },
|
|
|
|
{ .compatible = "starfive,jh7110", },
|
|
|
|
{ .compatible = "ti,omap2", },
|
|
{ .compatible = "ti,omap4", },
|
|
{ .compatible = "ti,omap5", },
|
|
|
|
{ .compatible = "xlnx,zynq-7000", },
|
|
{ .compatible = "xlnx,zynqmp", },
|
|
|
|
{ }
|
|
};
|
|
|
|
/*
|
|
* Machines for which the cpufreq device is *not* created, mostly used for
|
|
* platforms using "operating-points-v2" property.
|
|
*/
|
|
static const struct of_device_id blocklist[] __initconst = {
|
|
{ .compatible = "allwinner,sun50i-h6", },
|
|
|
|
{ .compatible = "apple,arm-platform", },
|
|
|
|
{ .compatible = "arm,vexpress", },
|
|
|
|
{ .compatible = "calxeda,highbank", },
|
|
{ .compatible = "calxeda,ecx-2000", },
|
|
|
|
{ .compatible = "fsl,imx7ulp", },
|
|
{ .compatible = "fsl,imx7d", },
|
|
{ .compatible = "fsl,imx7s", },
|
|
{ .compatible = "fsl,imx8mq", },
|
|
{ .compatible = "fsl,imx8mm", },
|
|
{ .compatible = "fsl,imx8mn", },
|
|
{ .compatible = "fsl,imx8mp", },
|
|
|
|
{ .compatible = "marvell,armadaxp", },
|
|
|
|
{ .compatible = "mediatek,mt2701", },
|
|
{ .compatible = "mediatek,mt2712", },
|
|
{ .compatible = "mediatek,mt7622", },
|
|
{ .compatible = "mediatek,mt7623", },
|
|
{ .compatible = "mediatek,mt8167", },
|
|
{ .compatible = "mediatek,mt817x", },
|
|
{ .compatible = "mediatek,mt8173", },
|
|
{ .compatible = "mediatek,mt8176", },
|
|
{ .compatible = "mediatek,mt8183", },
|
|
{ .compatible = "mediatek,mt8186", },
|
|
{ .compatible = "mediatek,mt8365", },
|
|
{ .compatible = "mediatek,mt8516", },
|
|
|
|
{ .compatible = "nvidia,tegra20", },
|
|
{ .compatible = "nvidia,tegra30", },
|
|
{ .compatible = "nvidia,tegra124", },
|
|
{ .compatible = "nvidia,tegra210", },
|
|
{ .compatible = "nvidia,tegra234", },
|
|
|
|
{ .compatible = "qcom,apq8096", },
|
|
{ .compatible = "qcom,msm8909", },
|
|
{ .compatible = "qcom,msm8996", },
|
|
{ .compatible = "qcom,msm8998", },
|
|
{ .compatible = "qcom,qcm2290", },
|
|
{ .compatible = "qcom,qcm6490", },
|
|
{ .compatible = "qcom,qcs404", },
|
|
{ .compatible = "qcom,qdu1000", },
|
|
{ .compatible = "qcom,sa8155p" },
|
|
{ .compatible = "qcom,sa8540p" },
|
|
{ .compatible = "qcom,sa8775p" },
|
|
{ .compatible = "qcom,sc7180", },
|
|
{ .compatible = "qcom,sc7280", },
|
|
{ .compatible = "qcom,sc8180x", },
|
|
{ .compatible = "qcom,sc8280xp", },
|
|
{ .compatible = "qcom,sdm845", },
|
|
{ .compatible = "qcom,sdx75", },
|
|
{ .compatible = "qcom,sm6115", },
|
|
{ .compatible = "qcom,sm6350", },
|
|
{ .compatible = "qcom,sm6375", },
|
|
{ .compatible = "qcom,sm7225", },
|
|
{ .compatible = "qcom,sm8150", },
|
|
{ .compatible = "qcom,sm8250", },
|
|
{ .compatible = "qcom,sm8350", },
|
|
{ .compatible = "qcom,sm8450", },
|
|
{ .compatible = "qcom,sm8550", },
|
|
|
|
{ .compatible = "st,stih407", },
|
|
{ .compatible = "st,stih410", },
|
|
{ .compatible = "st,stih418", },
|
|
|
|
{ .compatible = "ti,am33xx", },
|
|
{ .compatible = "ti,am43", },
|
|
{ .compatible = "ti,dra7", },
|
|
{ .compatible = "ti,omap3", },
|
|
{ .compatible = "ti,am625", },
|
|
{ .compatible = "ti,am62a7", },
|
|
{ .compatible = "ti,am62p5", },
|
|
|
|
{ .compatible = "qcom,ipq6018", },
|
|
{ .compatible = "qcom,ipq8064", },
|
|
{ .compatible = "qcom,apq8064", },
|
|
{ .compatible = "qcom,msm8974", },
|
|
{ .compatible = "qcom,msm8960", },
|
|
|
|
{ }
|
|
};
|
|
|
|
static bool __init cpu0_node_has_opp_v2_prop(void)
|
|
{
|
|
struct device_node *np = of_cpu_device_node_get(0);
|
|
bool ret = false;
|
|
|
|
if (of_property_present(np, "operating-points-v2"))
|
|
ret = true;
|
|
|
|
of_node_put(np);
|
|
return ret;
|
|
}
|
|
|
|
static int __init cpufreq_dt_platdev_init(void)
|
|
{
|
|
struct device_node *np = of_find_node_by_path("/");
|
|
const struct of_device_id *match;
|
|
const void *data = NULL;
|
|
|
|
if (!np)
|
|
return -ENODEV;
|
|
|
|
match = of_match_node(allowlist, np);
|
|
if (match) {
|
|
data = match->data;
|
|
goto create_pdev;
|
|
}
|
|
|
|
if (cpu0_node_has_opp_v2_prop() && !of_match_node(blocklist, np))
|
|
goto create_pdev;
|
|
|
|
of_node_put(np);
|
|
return -ENODEV;
|
|
|
|
create_pdev:
|
|
of_node_put(np);
|
|
return PTR_ERR_OR_ZERO(platform_device_register_data(NULL, "cpufreq-dt",
|
|
-1, data,
|
|
sizeof(struct cpufreq_dt_platform_data)));
|
|
}
|
|
core_initcall(cpufreq_dt_platdev_init);
|
|
MODULE_LICENSE("GPL");
|