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clk: tegra: dfll: registration for multiple SoCs 

In a future patch, support for the DFLL in Tegra210 will be introduced.
This requires support for more than 1 set of CVB and CPU max frequency
tables.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Peter De Schrijver 2019-01-04 11:06:47 +08:00 committed by Thierry Reding
parent bfeffd1552
commit b0dcfb78dc
1 changed files with 34 additions and 11 deletions
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45
drivers/clk/tegra/clk-tegra124-dfll-fcpu.c
View File

@ -1,7 +1,7 @@
/*
* Tegra124 DFLL FCPU clock source driver
*
* Copyright (C) 2012-2014 NVIDIA Corporation. All rights reserved.
* Copyright (C) 2012-2019 NVIDIA Corporation. All rights reserved.
*
* Aleksandr Frid <afrid@nvidia.com>
* Paul Walmsley <pwalmsley@nvidia.com>
@ -21,6 +21,7 @@
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <soc/tegra/fuse.h>
@ -28,8 +29,15 @@
#include "clk-dfll.h"
#include "cvb.h"
struct dfll_fcpu_data {
const unsigned long *cpu_max_freq_table;
unsigned int cpu_max_freq_table_size;
const struct cvb_table *cpu_cvb_tables;
unsigned int cpu_cvb_tables_size;
};
/* Maximum CPU frequency, indexed by CPU speedo id */
static const unsigned long cpu_max_freq_table[] = {
static const unsigned long tegra124_cpu_max_freq_table[] = {
[0] = 2014500000UL,
[1] = 2320500000UL,
[2] = 2116500000UL,
@ -82,16 +90,36 @@ static const struct cvb_table tegra124_cpu_cvb_tables[] = {
},
};
static const struct dfll_fcpu_data tegra124_dfll_fcpu_data = {
.cpu_max_freq_table = tegra124_cpu_max_freq_table,
.cpu_max_freq_table_size = ARRAY_SIZE(tegra124_cpu_max_freq_table),
.cpu_cvb_tables = tegra124_cpu_cvb_tables,
.cpu_cvb_tables_size = ARRAY_SIZE(tegra124_cpu_cvb_tables)
};
static const struct of_device_id tegra124_dfll_fcpu_of_match[] = {
{
.compatible = "nvidia,tegra124-dfll",
.data = &tegra124_dfll_fcpu_data,
},
{ },
};
static int tegra124_dfll_fcpu_probe(struct platform_device *pdev)
{
int process_id, speedo_id, speedo_value, err;
struct tegra_dfll_soc_data *soc;
const struct dfll_fcpu_data *fcpu_data;
fcpu_data = of_device_get_match_data(&pdev->dev);
if (!fcpu_data)
return -ENODEV;
process_id = tegra_sku_info.cpu_process_id;
speedo_id = tegra_sku_info.cpu_speedo_id;
speedo_value = tegra_sku_info.cpu_speedo_value;
if (speedo_id >= ARRAY_SIZE(cpu_max_freq_table)) {
if (speedo_id >= fcpu_data->cpu_max_freq_table_size) {
dev_err(&pdev->dev, "unknown max CPU freq for speedo_id=%d\n",
speedo_id);
return -ENODEV;
@ -107,10 +135,10 @@ static int tegra124_dfll_fcpu_probe(struct platform_device *pdev)
return -ENODEV;
}
soc->max_freq = cpu_max_freq_table[speedo_id];
soc->max_freq = fcpu_data->cpu_max_freq_table[speedo_id];
soc->cvb = tegra_cvb_add_opp_table(soc->dev, tegra124_cpu_cvb_tables,
ARRAY_SIZE(tegra124_cpu_cvb_tables),
soc->cvb = tegra_cvb_add_opp_table(soc->dev, fcpu_data->cpu_cvb_tables,
fcpu_data->cpu_cvb_tables_size,
process_id, speedo_id, speedo_value,
soc->max_freq);
if (IS_ERR(soc->cvb)) {
@ -142,11 +170,6 @@ static int tegra124_dfll_fcpu_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id tegra124_dfll_fcpu_of_match[] = {
{ .compatible = "nvidia,tegra124-dfll", },
{ },
};
static const struct dev_pm_ops tegra124_dfll_pm_ops = {
SET_RUNTIME_PM_OPS(tegra_dfll_runtime_suspend,
tegra_dfll_runtime_resume, NULL)