mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 09:19:51 +00:00
![AngeloGioacchino Del Regno](/assets/img/avatar_default.png)
This SoC shall use the mediatek-cpufreq driver, or the system will
crash upon any clock scaling request: add it to the cpufreq-dt-platdev
blocklist.
Fixes: 39b360102f
("cpufreq: mediatek: Add support for MT8186")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
210 lines
5.8 KiB
C
210 lines
5.8 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/of.h>
|
|
#include <linux/of_device.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 = "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 = "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 = "qcom,apq8096", },
|
|
{ .compatible = "qcom,msm8996", },
|
|
{ .compatible = "qcom,qcs404", },
|
|
{ .compatible = "qcom,sa8155p" },
|
|
{ .compatible = "qcom,sa8540p" },
|
|
{ .compatible = "qcom,sc7180", },
|
|
{ .compatible = "qcom,sc7280", },
|
|
{ .compatible = "qcom,sc8180x", },
|
|
{ .compatible = "qcom,sc8280xp", },
|
|
{ .compatible = "qcom,sdm845", },
|
|
{ .compatible = "qcom,sm6350", },
|
|
{ .compatible = "qcom,sm8150", },
|
|
{ .compatible = "qcom,sm8250", },
|
|
{ .compatible = "qcom,sm8350", },
|
|
|
|
{ .compatible = "st,stih407", },
|
|
{ .compatible = "st,stih410", },
|
|
{ .compatible = "st,stih418", },
|
|
|
|
{ .compatible = "ti,am33xx", },
|
|
{ .compatible = "ti,am43", },
|
|
{ .compatible = "ti,dra7", },
|
|
{ .compatible = "ti,omap3", },
|
|
|
|
{ .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_get_property(np, "operating-points-v2", NULL))
|
|
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);
|