diff options
| author | Tobias Schramm <tobias@t-sys.eu> | 2024-02-26 10:40:50 +0100 |
|---|---|---|
| committer | Christian Lamparter <chunkeey@gmail.com> | 2024-03-02 14:21:20 +0100 |
| commit | 1ed01ef606192ca7900b90bc81c4374bbdd5d786 (patch) | |
| tree | 2c5db2f8b034f71f52dd823461aa4e190b9dfc76 /target/linux/mvebu/patches-6.1 | |
| parent | 4f668091bfd608b73f4b98b206358d8f1a7ffade (diff) | |
kernel: 6.1: backport Marvell Armada 8k AP807 cpufreq support
Upstream a patch adding support for cpufreq on AP807-based SoC like the
CN913x was submitted. Include it in patches to ensure best performance
under load and lowest power consumption in idle.
Signed-off-by: Tobias Schramm <tobias@t-sys.eu>
Diffstat (limited to 'target/linux/mvebu/patches-6.1')
| -rw-r--r-- | target/linux/mvebu/patches-6.1/000-cpufreq-armada-8k-add-ap807-support.patch | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-6.1/000-cpufreq-armada-8k-add-ap807-support.patch b/target/linux/mvebu/patches-6.1/000-cpufreq-armada-8k-add-ap807-support.patch new file mode 100644 index 0000000000..cacc65e7c0 --- /dev/null +++ b/target/linux/mvebu/patches-6.1/000-cpufreq-armada-8k-add-ap807-support.patch @@ -0,0 +1,64 @@ +From 8eec6e740b564ec5e1da59ab7070b89aa23c9973 Mon Sep 17 00:00:00 2001 +From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk> +Date: Fri, 16 Jun 2023 12:41:30 +0100 +Subject: [PATCH] cpufreq: armada-8k: add ap807 support + +Add support for the Armada AP807 die to armada-8k. This uses a +different compatible for the CPU clock which needs to be added to +the cpufreq driver. + +This commit takes a different approach to the WindRiver patch +"cpufreq: armada: enable ap807-cpu-clk" in that rather than calling +of_find_compatible_node() for each compatible, we use a table of +IDs instead. + +Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> +Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> +--- + drivers/cpufreq/armada-8k-cpufreq.c | 16 +++++++++------- + 1 file changed, 9 insertions(+), 7 deletions(-) + +diff --git a/drivers/cpufreq/armada-8k-cpufreq.c b/drivers/cpufreq/armada-8k-cpufreq.c +index b0fc5e84f857..8afefdea4d80 100644 +--- a/drivers/cpufreq/armada-8k-cpufreq.c ++++ b/drivers/cpufreq/armada-8k-cpufreq.c +@@ -21,6 +21,13 @@ + #include <linux/pm_opp.h> + #include <linux/slab.h> + ++static const struct of_device_id __maybe_unused armada_8k_cpufreq_of_match[] = { ++ { .compatible = "marvell,ap806-cpu-clock" }, ++ { .compatible = "marvell,ap807-cpu-clock" }, ++ { }, ++}; ++MODULE_DEVICE_TABLE(of, armada_8k_cpufreq_of_match); ++ + /* + * Setup the opps list with the divider for the max frequency, that + * will be filled at runtime. +@@ -127,7 +134,8 @@ static int __init armada_8k_cpufreq_init(void) + struct device_node *node; + struct cpumask cpus; + +- node = of_find_compatible_node(NULL, NULL, "marvell,ap806-cpu-clock"); ++ node = of_find_matching_node_and_match(NULL, armada_8k_cpufreq_of_match, ++ NULL); + if (!node || !of_device_is_available(node)) { + of_node_put(node); + return -ENODEV; +@@ -204,12 +212,6 @@ static void __exit armada_8k_cpufreq_exit(void) + } + module_exit(armada_8k_cpufreq_exit); + +-static const struct of_device_id __maybe_unused armada_8k_cpufreq_of_match[] = { +- { .compatible = "marvell,ap806-cpu-clock" }, +- { }, +-}; +-MODULE_DEVICE_TABLE(of, armada_8k_cpufreq_of_match); +- + MODULE_AUTHOR("Gregory Clement <gregory.clement@bootlin.com>"); + MODULE_DESCRIPTION("Armada 8K cpufreq driver"); + MODULE_LICENSE("GPL"); +-- +2.43.2 + |