diff options
Diffstat (limited to 'target/linux/ipq806x/patches-5.10/098-3-add-fab-scaling-support-with-cpufreq.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-5.10/098-3-add-fab-scaling-support-with-cpufreq.patch | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/target/linux/ipq806x/patches-5.10/098-3-add-fab-scaling-support-with-cpufreq.patch b/target/linux/ipq806x/patches-5.10/098-3-add-fab-scaling-support-with-cpufreq.patch deleted file mode 100644 index 8ce3f062cf..0000000000 --- a/target/linux/ipq806x/patches-5.10/098-3-add-fab-scaling-support-with-cpufreq.patch +++ /dev/null @@ -1,243 +0,0 @@ ---- a/drivers/clk/qcom/Makefile -+++ b/drivers/clk/qcom/Makefile -@@ -15,6 +15,7 @@ clk-qcom-$(CONFIG_KRAIT_CLOCKS) += clk-k - clk-qcom-y += clk-hfpll.o - clk-qcom-y += reset.o - clk-qcom-$(CONFIG_QCOM_GDSC) += gdsc.o -+clk-qcom-y += fab_scaling.o - - # Keep alphabetically sorted by config - obj-$(CONFIG_APQ_GCC_8084) += gcc-apq8084.o ---- /dev/null -+++ b/drivers/clk/qcom/fab_scaling.c -@@ -0,0 +1,172 @@ -+/* -+ * Copyright (c) 2015, The Linux Foundation. All rights reserved. -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -+ */ -+ -+#include <linux/kernel.h> -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/err.h> -+#include <linux/io.h> -+#include <linux/of.h> -+#include <linux/of_device.h> -+#include <linux/clk.h> -+#include <linux/clk-provider.h> -+#include <linux/slab.h> -+#include <linux/fab_scaling.h> -+ -+struct qcom_fab_scaling_data { -+ u32 fab_freq_high; -+ u32 fab_freq_nominal; -+ u32 cpu_freq_threshold; -+ struct clk *apps_fab_clk; -+ struct clk *ddr_fab_clk; -+}; -+ -+static struct qcom_fab_scaling_data *drv_data; -+ -+int scale_fabrics(unsigned long max_cpu_freq) -+{ -+ struct clk *apps_fab_clk = drv_data->apps_fab_clk, -+ *ddr_fab_clk = drv_data->ddr_fab_clk; -+ unsigned long target_freq, cur_freq; -+ int ret; -+ -+ /* Skip fab scaling if the driver is not ready */ -+ if (!apps_fab_clk || !ddr_fab_clk) -+ return 0; -+ -+ if (max_cpu_freq > drv_data->cpu_freq_threshold) -+ target_freq = drv_data->fab_freq_high; -+ else -+ target_freq = drv_data->fab_freq_nominal; -+ -+ cur_freq = clk_get_rate(ddr_fab_clk); -+ -+ if (target_freq != cur_freq) { -+ ret = clk_set_rate(apps_fab_clk, target_freq); -+ if (ret) -+ return ret; -+ ret = clk_set_rate(ddr_fab_clk, target_freq); -+ if (ret) -+ return ret; -+ } -+ -+ return 0; -+} -+EXPORT_SYMBOL(scale_fabrics); -+ -+static int ipq806x_fab_scaling_probe(struct platform_device *pdev) -+{ -+ struct device_node *np = pdev->dev.of_node; -+ struct clk *apps_fab_clk, *ddr_fab_clk; -+ int ret; -+ -+ if (!np) -+ return -ENODEV; -+ -+ drv_data = kzalloc(sizeof(*drv_data), GFP_KERNEL); -+ if (!drv_data) -+ return -ENOMEM; -+ -+ if (of_property_read_u32(np, "fab_freq_high", &drv_data->fab_freq_high)) { -+ pr_err("FABRICS turbo freq not found. Using defaults...\n"); -+ drv_data->fab_freq_high = 533000000; -+ } -+ -+ if (of_property_read_u32(np, "fab_freq_nominal", &drv_data->fab_freq_nominal)) { -+ pr_err("FABRICS nominal freq not found. Using defaults...\n"); -+ drv_data->fab_freq_nominal = 400000000; -+ } -+ -+ if (of_property_read_u32(np, "cpu_freq_threshold", &drv_data->cpu_freq_threshold)) { -+ pr_err("FABRICS cpu freq threshold not found. Using defaults...\n"); -+ drv_data->cpu_freq_threshold = 1000000000; -+ } -+ -+ apps_fab_clk = devm_clk_get(&pdev->dev, "apps-fab-clk"); -+ ret = PTR_ERR_OR_ZERO(apps_fab_clk); -+ if (ret) { -+ /* -+ * If apps fab clk node is present, but clock is not yet -+ * registered, we should try defering probe. -+ */ -+ if (ret != -EPROBE_DEFER) { -+ pr_err("Failed to get APPS FABRIC clock: %d\n", ret); -+ ret = -ENODEV; -+ } -+ goto err; -+ } -+ -+ clk_prepare_enable(apps_fab_clk); -+ clk_set_rate(apps_fab_clk, drv_data->fab_freq_high); -+ drv_data->apps_fab_clk = apps_fab_clk; -+ -+ ddr_fab_clk = devm_clk_get(&pdev->dev, "ddr-fab-clk"); -+ ret = PTR_ERR_OR_ZERO(ddr_fab_clk); -+ if (ret) { -+ /* -+ * If ddr fab clk node is present, but clock is not yet -+ * registered, we should try defering probe. -+ */ -+ if (ret != -EPROBE_DEFER) { -+ pr_err("Failed to get DDR FABRIC clock: %d\n", ret); -+ ddr_fab_clk = NULL; -+ ret = -ENODEV; -+ } -+ goto err; -+ } -+ -+ clk_prepare_enable(ddr_fab_clk); -+ clk_set_rate(ddr_fab_clk, drv_data->fab_freq_high); -+ drv_data->ddr_fab_clk = ddr_fab_clk; -+ -+ return 0; -+err: -+ kfree(drv_data); -+ return ret; -+} -+ -+static int ipq806x_fab_scaling_remove(struct platform_device *pdev) -+{ -+ kfree(drv_data); -+ return 0; -+} -+ -+static const struct of_device_id fab_scaling_ipq806x_match_table[] = { -+ { .compatible = "qcom,fab-scaling" }, -+ { } -+}; -+ -+static struct platform_driver fab_scaling_ipq806x_driver = { -+ .probe = ipq806x_fab_scaling_probe, -+ .remove = ipq806x_fab_scaling_remove, -+ .driver = { -+ .name = "fab-scaling", -+ .of_match_table = fab_scaling_ipq806x_match_table, -+ }, -+}; -+ -+static int __init fab_scaling_ipq806x_init(void) -+{ -+ return platform_driver_register(&fab_scaling_ipq806x_driver); -+} -+late_initcall(fab_scaling_ipq806x_init); -+ -+static void __exit fab_scaling_ipq806x_exit(void) -+{ -+ platform_driver_unregister(&fab_scaling_ipq806x_driver); -+} -+module_exit(fab_scaling_ipq806x_exit); ---- /dev/null -+++ b/include/linux/fab_scaling.h -@@ -0,0 +1,31 @@ -+/* -+ * Copyright (c) 2015, The Linux Foundation. All rights reserved. -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -+ */ -+ -+ -+#ifndef __FAB_SCALING_H -+#define __FAB_SCALING_H -+ -+/** -+ * scale_fabrics - Scale DDR and APPS FABRICS -+ * -+ * This function monitors all the registered clocks and does APPS -+ * and DDR FABRIC scaling based on the idle frequencies with which -+ * it was registered. -+ * -+ */ -+int scale_fabrics(unsigned long max_cpu_freq); -+ -+#endif ---- a/drivers/cpufreq/qcom-cpufreq-krait.c -+++ b/drivers/cpufreq/qcom-cpufreq-krait.c -@@ -15,6 +15,7 @@ - #include <linux/regulator/consumer.h> - #include <linux/slab.h> - #include <linux/thermal.h> -+#include <linux/fab_scaling.h> - - #include "cpufreq-dt.h" - -@@ -68,6 +69,13 @@ static int set_target(struct cpufreq_pol - return -EINVAL; - } - -+ /* -+ * Scale fabrics with max freq across all cores -+ */ -+ ret = scale_fabrics(target_freq); -+ if (ret) -+ return ret; -+ - opp = dev_pm_opp_find_level_exact(&l2_pdev->dev, level); - if (IS_ERR(opp)) { - dev_err(&l2_pdev->dev, |