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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?eLRbcXGMEERq1Ok5q2SaD8bkieS1Pz2c5TOG5qCNy7H6t9fJQ+znIBnAlTGY?= =?us-ascii?Q?RY1yQDE7vnPy6ywRjd6Y72qmKhIwcgN3w8BRji7ZSrHbFw1Fxu21fV3t9WJd?= =?us-ascii?Q?wcIZkvEPlv1KpAKyZCtMwloR4yMwKwerdi6tExI9uCpLYp+mgAmGzWZN3njI?= =?us-ascii?Q?Fx/MiYADy1+/mu7mtYD3tPQD43cfuNCLr2/6tl2rhyAjI1osSD444VFAFL+N?= =?us-ascii?Q?u3Qc52UioHt7kgnmLQf0Yin54ot/H30sXYSlEIM6H/FlFU+ENV4QHFwu6Poe?= =?us-ascii?Q?fjnne5Uv1LUqMXpojoiqXnVJM5aOVbDmP9AUvzC4hsubUNCu3++0ybjQPYmY?= =?us-ascii?Q?Vg3OvN6au7li6vMAHqda/1VbRoU483ROOLsOg7per96rfk4aUfH/e9urwzoS?= =?us-ascii?Q?dfiD5FZY9nx8ZKfoJkQ7GCEPjoBdr0rVEmgteGWmZSAwbD1KcpJIn0CIqHPI?= =?us-ascii?Q?/AVUYbuqfypkdCABCwuFgyMZzTg5T9VDTm1t3yeNkaMvELSOy2ZGkGkF2vsA?= =?us-ascii?Q?bhEKfasloObBRgTLNL3+56X9beaoBUYQcfOGuMb2kcXEHrMbUIKNIdzCGGZ5?= =?us-ascii?Q?JZs5oTxbWZjE0BtaHZ0JsGDYp9dVqq3IOS98bbeU/k6XhIz0Tplf2DHBCdwi?= =?us-ascii?Q?EyyEDnxAQCzp6+MfSVLNfbyiJVaKLe3Fp1NYjoChzT3r90aTqmCnwctxMU0f?= =?us-ascii?Q?dibn5YKTxLWjxoITlooJYpv8tuGhgFMLgzk6YXBTBlaSBcPwwBTTfYzPpEAP?= =?us-ascii?Q?4ZnzQM60amgxxzVECxczRut+8ujqdaqJ5kWYjTNSLh+4zHZ3LLIoAl2nbYQx?= =?us-ascii?Q?mMRuDfYfRIvSfwFDn1mK6aMob8u2lW7imCuQflNPkN06jcmB4jUQaF5NG9/4?= =?us-ascii?Q?p6RxAYuBqD22y9RlbyKXnusxAhZVIZLJ3/k1/mOgipHgMwwUbEo/H06nKZq1?= =?us-ascii?Q?3tGSmCHRS+Y0jnSIb3KVDNJQHFipGc67cWbEismnfxATp0hvRoQDxtIqOwtV?= =?us-ascii?Q?7IvY7PecobZytVvoI9TqNSWsoZ1s6Rdg5b6G9EfmZli2u24Dw6OSbCFoUyLz?= =?us-ascii?Q?+J8Xw8nHQDCOz0zAOcCPb9uYP7PvYtWO/HWikzeExpH877ONEHaNyvEOQCs+?= =?us-ascii?Q?8i3lxITfwSAl0zoP5WFFzf7gDhW9xhb5lTAnX9WL+yCrVIgDYHgKi/dwZtSN?= =?us-ascii?Q?o5+kjfiMfPmjnbhaid2Y+mtF2uLCeTIOM2qWmtVFQHvleL0umZ7I4taVsgkf?= =?us-ascii?Q?CEoWnNpiyj3UmVlVq5duZ4YJcNqTRRFoKXD8WSEvvvjciZak2SzSnAw19Qsz?= =?us-ascii?Q?rATKHiXsLkkFWZVAG1+rtPU3+S/v8weQ93BGWHXSGySyQWK4n3aHs9FghqQP?= =?us-ascii?Q?61LApMes1CpVG+lTfxl0THrbyUkOMpUoC0Xa8WgcDpUgItLChok4H6Z0k/00?= =?us-ascii?Q?s7Ali8CeeJRupASUQhiQ+h6rQVAwwNFE6H6l+OxfpZmg9nvpgFyDTG3q3Yx1?= =?us-ascii?Q?KyCK/ytmcrYKpN9Aca7mZQbC1DuvDg9PJDZ0EHsqKCkOwrPnGYdlkG8HbJQm?= =?us-ascii?Q?9EEWr2T1hxe+wkoOGuYIHimMLEEVfWqes/ZxIeAHVk+01TRlYGUnPHwurApx?= =?us-ascii?Q?Pblc8buD/CJnP1SuokxEgLNJ2Zd/yOvee/rc9gFnBX0TX7pv88QI/29jWva3?= =?us-ascii?Q?q2ML7ghtWvzk1YwUydx9OsT79GHErL+fzBmaxURAX0iSPdSbExjTZl6b3/3M?= =?us-ascii?Q?WsFNCw2gBA=3D=3D?= X-OriginatorOrg: heitbaum.com X-MS-Exchange-CrossTenant-Network-Message-Id: 62f9f493-f147-42a7-4109-08def535aa4a X-MS-Exchange-CrossTenant-AuthSource: SY7P282MB4909.AUSP282.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Aug 2026 10:13:17.3101 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 35ffebb5-7282-4da6-8519-efab29b0108e X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: bvAyWv0i2XHZbRc2kSLuD/I2PYm2zqMLD9rym24M6xUd2FgINDQpKuozMxlEbmbghO83Z3lqkgBxxQppSPkRCA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SYBP282MB4053 The cpu_alert1 map asks for cooling states 0 to 2, to exclude the two highest operating points. How many operating points exist depends on the speed grade: a53_opp_table gates each entry on opp-supported-hw, and a grade 3 / segment 0 part gets only two of the four, 1.0GHz and 1.5GHz. cpufreq-cpu0 then has max_state 1 and the bind is rejected: thermal thermal_zone0: binding cdev cpufreq-cpu0 to trip 3 failed: -22 thermal_bind_cdev_to_trip() returns -EINVAL when upper exceeds max_state. The trip is left with no cooling device at all. Use THERMAL_NO_LIMIT so the map means "all available states" and adapts to whatever the part provides. On a device with the full table this is still the hotter of the two trips and still allows more throttling than cpu_alert0; on a two operating point part the two trips coincide, which is the best that can be done there. cpu_alert0 is unaffected: its upper bound of 1 is valid either way, which is why frequency throttling worked at 75C despite this failure. Signed-off-by: Rudi Heitbaum --- arch/arm64/boot/dts/freescale/imx8mq-phanbell.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-phanbell.dts b/arch/arm64/boot/dts/freescale/imx8mq-phanbell.dts index c06a787a4013..4ad206f5a9d1 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-phanbell.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-phanbell.dts @@ -101,7 +101,7 @@ map0 { map1 { trip = <&cpu_alert1>; cooling-device = - <&A53_0 0 2>; /* Exclude two highest OPPs */ + <&A53_0 0 THERMAL_NO_LIMIT>; }; map4 { -- 2.53.0