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Diffstat (limited to 'target/linux/ipq806x/patches-4.19/0037-qcom-cpufreq-nvmem-Refactor-the-driver.patch')
-rw-r--r--target/linux/ipq806x/patches-4.19/0037-qcom-cpufreq-nvmem-Refactor-the-driver.patch241
1 files changed, 0 insertions, 241 deletions
diff --git a/target/linux/ipq806x/patches-4.19/0037-qcom-cpufreq-nvmem-Refactor-the-driver.patch b/target/linux/ipq806x/patches-4.19/0037-qcom-cpufreq-nvmem-Refactor-the-driver.patch
deleted file mode 100644
index d00b2ccfcb..0000000000
--- a/target/linux/ipq806x/patches-4.19/0037-qcom-cpufreq-nvmem-Refactor-the-driver.patch
+++ /dev/null
@@ -1,241 +0,0 @@
-From 57f2f8b4aa0c6b41a284da82bfa40dc3b2abe9a5 Mon Sep 17 00:00:00 2001
-From: Niklas Cassel <niklas.cassel@linaro.org>
-Date: Thu, 25 Jul 2019 12:41:33 +0200
-Subject: [PATCH] cpufreq: qcom: Refactor the driver to make it easier to
- extend
-
-Refactor the driver to make it easier to extend in a later commit.
-
-Create a driver struct to collect all common resources, in order to make
-it easier to free up all common resources.
-Create a driver match_data struct to make it easier to extend the driver
-with support for new features that might only be supported on certain SoCs.
-
-Co-developed-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
-Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
-Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
-Reviewed-by: Ilia Lin <ilia.lin@kernel.org>
-Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
----
- drivers/cpufreq/qcom-cpufreq-nvmem.c | 123 +++++++++++++++++----------
- 1 file changed, 79 insertions(+), 44 deletions(-)
-
---- a/drivers/cpufreq/qcom-cpufreq-nvmem.c
-+++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c
-@@ -43,6 +43,20 @@ enum _msm8996_version {
- NUM_OF_MSM8996_VERSIONS,
- };
-
-+struct qcom_cpufreq_drv;
-+
-+struct qcom_cpufreq_match_data {
-+ int (*get_version)(struct device *cpu_dev,
-+ struct nvmem_cell *speedbin_nvmem,
-+ struct qcom_cpufreq_drv *drv);
-+};
-+
-+struct qcom_cpufreq_drv {
-+ struct opp_table **opp_tables;
-+ u32 versions;
-+ const struct qcom_cpufreq_match_data *data;
-+};
-+
- static struct platform_device *cpufreq_dt_pdev, *cpufreq_pdev;
-
- static enum _msm8996_version qcom_cpufreq_get_msm_id(void)
-@@ -76,7 +90,7 @@ static enum _msm8996_version qcom_cpufre
-
- static int qcom_cpufreq_kryo_name_version(struct device *cpu_dev,
- struct nvmem_cell *speedbin_nvmem,
-- u32 *versions)
-+ struct qcom_cpufreq_drv *drv)
- {
- size_t len;
- u8 *speedbin;
-@@ -94,10 +108,10 @@ static int qcom_cpufreq_kryo_name_versio
-
- switch (msm8996_version) {
- case MSM8996_V3:
-- *versions = 1 << (unsigned int)(*speedbin);
-+ drv->versions = 1 << (unsigned int)(*speedbin);
- break;
- case MSM8996_SG:
-- *versions = 1 << ((unsigned int)(*speedbin) + 4);
-+ drv->versions = 1 << ((unsigned int)(*speedbin) + 4);
- break;
- default:
- BUG();
-@@ -108,17 +122,17 @@ static int qcom_cpufreq_kryo_name_versio
- return 0;
- }
-
-+static const struct qcom_cpufreq_match_data match_data_kryo = {
-+ .get_version = qcom_cpufreq_kryo_name_version,
-+};
-+
- static int qcom_cpufreq_probe(struct platform_device *pdev)
- {
-- struct opp_table **opp_tables;
-- int (*get_version)(struct device *cpu_dev,
-- struct nvmem_cell *speedbin_nvmem,
-- u32 *versions);
-+ struct qcom_cpufreq_drv *drv;
- struct nvmem_cell *speedbin_nvmem;
- struct device_node *np;
- struct device *cpu_dev;
- unsigned cpu;
-- u32 versions;
- const struct of_device_id *match;
- int ret;
-
-@@ -126,11 +140,6 @@ static int qcom_cpufreq_probe(struct pla
- if (!cpu_dev)
- return -ENODEV;
-
-- match = pdev->dev.platform_data;
-- get_version = match->data;
-- if (!get_version)
-- return -ENODEV;
--
- np = dev_pm_opp_of_get_opp_desc_node(cpu_dev);
- if (!np)
- return -ENOENT;
-@@ -141,23 +150,43 @@ static int qcom_cpufreq_probe(struct pla
- return -ENOENT;
- }
-
-- speedbin_nvmem = of_nvmem_cell_get(np, NULL);
-- of_node_put(np);
-- if (IS_ERR(speedbin_nvmem)) {
-- if (PTR_ERR(speedbin_nvmem) != -EPROBE_DEFER)
-- dev_err(cpu_dev, "Could not get nvmem cell: %ld\n",
-- PTR_ERR(speedbin_nvmem));
-- return PTR_ERR(speedbin_nvmem);
-+ drv = kzalloc(sizeof(*drv), GFP_KERNEL);
-+ if (!drv)
-+ return -ENOMEM;
-+
-+ match = pdev->dev.platform_data;
-+ drv->data = match->data;
-+ if (!drv->data) {
-+ ret = -ENODEV;
-+ goto free_drv;
- }
-
-- ret = get_version(cpu_dev, speedbin_nvmem, &versions);
-- nvmem_cell_put(speedbin_nvmem);
-- if (ret)
-- return ret;
-+ if (drv->data->get_version) {
-+ speedbin_nvmem = of_nvmem_cell_get(np, NULL);
-+ if (IS_ERR(speedbin_nvmem)) {
-+ if (PTR_ERR(speedbin_nvmem) != -EPROBE_DEFER)
-+ dev_err(cpu_dev,
-+ "Could not get nvmem cell: %ld\n",
-+ PTR_ERR(speedbin_nvmem));
-+ ret = PTR_ERR(speedbin_nvmem);
-+ goto free_drv;
-+ }
-
-- opp_tables = kcalloc(num_possible_cpus(), sizeof(*opp_tables), GFP_KERNEL);
-- if (!opp_tables)
-- return -ENOMEM;
-+ ret = drv->data->get_version(cpu_dev, speedbin_nvmem, drv);
-+ if (ret) {
-+ nvmem_cell_put(speedbin_nvmem);
-+ goto free_drv;
-+ }
-+ nvmem_cell_put(speedbin_nvmem);
-+ }
-+ of_node_put(np);
-+
-+ drv->opp_tables = kcalloc(num_possible_cpus(), sizeof(*drv->opp_tables),
-+ GFP_KERNEL);
-+ if (!drv->opp_tables) {
-+ ret = -ENOMEM;
-+ goto free_drv;
-+ }
-
- for_each_possible_cpu(cpu) {
- cpu_dev = get_cpu_device(cpu);
-@@ -166,19 +195,23 @@ static int qcom_cpufreq_probe(struct pla
- goto free_opp;
- }
-
-- opp_tables[cpu] = dev_pm_opp_set_supported_hw(cpu_dev,
-- &versions, 1);
-- if (IS_ERR(opp_tables[cpu])) {
-- ret = PTR_ERR(opp_tables[cpu]);
-- dev_err(cpu_dev, "Failed to set supported hardware\n");
-- goto free_opp;
-+ if (drv->data->get_version) {
-+ drv->opp_tables[cpu] =
-+ dev_pm_opp_set_supported_hw(cpu_dev,
-+ &drv->versions, 1);
-+ if (IS_ERR(drv->opp_tables[cpu])) {
-+ ret = PTR_ERR(drv->opp_tables[cpu]);
-+ dev_err(cpu_dev,
-+ "Failed to set supported hardware\n");
-+ goto free_opp;
-+ }
- }
- }
-
- cpufreq_dt_pdev = platform_device_register_simple("cpufreq-dt", -1,
- NULL, 0);
- if (!IS_ERR(cpufreq_dt_pdev)) {
-- platform_set_drvdata(pdev, opp_tables);
-+ platform_set_drvdata(pdev, drv);
- return 0;
- }
-
-@@ -187,26 +220,30 @@ static int qcom_cpufreq_probe(struct pla
-
- free_opp:
- for_each_possible_cpu(cpu) {
-- if (IS_ERR_OR_NULL(opp_tables[cpu]))
-+ if (IS_ERR_OR_NULL(drv->opp_tables[cpu]))
- break;
-- dev_pm_opp_put_supported_hw(opp_tables[cpu]);
-+ dev_pm_opp_put_supported_hw(drv->opp_tables[cpu]);
- }
-- kfree(opp_tables);
-+ kfree(drv->opp_tables);
-+free_drv:
-+ kfree(drv);
-
- return ret;
- }
-
- static int qcom_cpufreq_remove(struct platform_device *pdev)
- {
-- struct opp_table **opp_tables = platform_get_drvdata(pdev);
-+ struct qcom_cpufreq_drv *drv = platform_get_drvdata(pdev);
- unsigned int cpu;
-
- platform_device_unregister(cpufreq_dt_pdev);
-
- for_each_possible_cpu(cpu)
-- dev_pm_opp_put_supported_hw(opp_tables[cpu]);
-+ if (drv->opp_tables[cpu])
-+ dev_pm_opp_put_supported_hw(drv->opp_tables[cpu]);
-
-- kfree(opp_tables);
-+ kfree(drv->opp_tables);
-+ kfree(drv);
-
- return 0;
- }
-@@ -220,10 +257,8 @@ static struct platform_driver qcom_cpufr
- };
-
- static const struct of_device_id qcom_cpufreq_match_list[] __initconst = {
-- { .compatible = "qcom,apq8096",
-- .data = qcom_cpufreq_kryo_name_version },
-- { .compatible = "qcom,msm8996",
-- .data = qcom_cpufreq_kryo_name_version },
-+ { .compatible = "qcom,apq8096", .data = &match_data_kryo },
-+ { .compatible = "qcom,msm8996", .data = &match_data_kryo },
- {},
- };
-
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