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soc/tegra: Changes for v6.5-rc1

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This adds initial support for identifying the Tegra264 SoC family and
 fixes potential issues when reading from the FUSE block. A new software
 wake event for the AON cluster is added on Tegra234 and the debugfs
 initialization is drastically simplified.
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Merge tag 'tegra-for-6.5-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers

soc/tegra: Changes for v6.5-rc1

This adds initial support for identifying the Tegra264 SoC family and
fixes potential issues when reading from the FUSE block. A new software
wake event for the AON cluster is added on Tegra234 and the debugfs
initialization is drastically simplified.

* tag 'tegra-for-6.5-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  soc/tegra: pmc: Use devm_clk_notifier_register()
  soc/tegra: pmc: Simplify debugfs initialization
  soc/tegra: fuse: Fix Tegra234 fuse size
  soc/tegra: pmc: Add AON SW Wake support for Tegra234
  soc/tegra: fuse: Add support for Tegra264

Link: https://lore.kernel.org/r/20230609193620.2275240-1-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2023-06-21 21:39:18 +02:00
commit bc889e870e
4 changed files with 12 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/soc/tegra/fuse/fuse-tegra30.c
View File

@ -663,7 +663,7 @@ static const struct nvmem_keepout tegra234_fuse_keepouts[] = {
static const struct tegra_fuse_info tegra234_fuse_info = {
.read = tegra30_fuse_read,
.size = 0x98c,
.size = 0xf90,
.spare = 0x280,
};

3
drivers/soc/tegra/fuse/tegra-apbmisc.c
View File

@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2014-2023, NVIDIA CORPORATION. All rights reserved.
*/
#include <linux/export.h>
@ -62,6 +62,7 @@ bool tegra_is_silicon(void)
switch (tegra_get_chip_id()) {
case TEGRA194:
case TEGRA234:
case TEGRA264:
if (tegra_get_platform() == 0)
return true;

31
drivers/soc/tegra/pmc.c
View File

@ -396,7 +396,6 @@ struct tegra_pmc_soc {
* @clk: pointer to pclk clock
* @soc: pointer to SoC data structure
* @tz_only: flag specifying if the PMC can only be accessed via TrustZone
* @debugfs: pointer to debugfs entry
* @rate: currently configured rate of pclk
* @suspend_mode: lowest suspend mode available
* @cpu_good_time: CPU power good time (in microseconds)
@ -431,7 +430,6 @@ struct tegra_pmc {
void __iomem *aotag;
void __iomem *scratch;
struct clk *clk;
struct dentry *debugfs;
const struct tegra_pmc_soc *soc;
bool tz_only;
@ -1190,16 +1188,6 @@ static int powergate_show(struct seq_file *s, void *data)
DEFINE_SHOW_ATTRIBUTE(powergate);
static int tegra_powergate_debugfs_init(void)
{
pmc->debugfs = debugfs_create_file("powergate", S_IRUGO, NULL, NULL,
&powergate_fops);
if (!pmc->debugfs)
return -ENOMEM;
return 0;
}
static int tegra_powergate_of_get_clks(struct tegra_powergate *pg,
struct device_node *np)
{
@ -3004,7 +2992,8 @@ static int tegra_pmc_probe(struct platform_device *pdev)
*/
if (pmc->clk) {
pmc->clk_nb.notifier_call = tegra_pmc_clk_notify_cb;
err = clk_notifier_register(pmc->clk, &pmc->clk_nb);
err = devm_clk_notifier_register(&pdev->dev, pmc->clk,
&pmc->clk_nb);
if (err) {
dev_err(&pdev->dev,
"failed to register clk notifier\n");
@ -3026,19 +3015,13 @@ static int tegra_pmc_probe(struct platform_device *pdev)
tegra_pmc_reset_sysfs_init(pmc);
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
err = tegra_powergate_debugfs_init();
if (err < 0)
goto cleanup_sysfs;
}
err = tegra_pmc_pinctrl_init(pmc);
if (err)
goto cleanup_debugfs;
goto cleanup_sysfs;
err = tegra_pmc_regmap_init(pmc);
if (err < 0)
goto cleanup_debugfs;
goto cleanup_sysfs;
err = tegra_powergate_init(pmc, pdev->dev.of_node);
if (err < 0)
@ -3061,16 +3044,15 @@ static int tegra_pmc_probe(struct platform_device *pdev)
if (pmc->soc->set_wake_filters)
pmc->soc->set_wake_filters(pmc);
debugfs_create_file("powergate", 0444, NULL, NULL, &powergate_fops);
return 0;
cleanup_powergates:
tegra_powergate_remove_all(pdev->dev.of_node);
cleanup_debugfs:
debugfs_remove(pmc->debugfs);
cleanup_sysfs:
device_remove_file(&pdev->dev, &dev_attr_reset_reason);
device_remove_file(&pdev->dev, &dev_attr_reset_level);
clk_notifier_unregister(pmc->clk, &pmc->clk_nb);
return err;
}
@ -4250,6 +4232,7 @@ static const struct tegra_wake_event tegra234_wake_events[] = {
TEGRA_WAKE_GPIO("power", 29, 1, TEGRA234_AON_GPIO(EE, 4)),
TEGRA_WAKE_GPIO("mgbe", 56, 0, TEGRA234_MAIN_GPIO(Y, 3)),
TEGRA_WAKE_IRQ("rtc", 73, 10),
TEGRA_WAKE_IRQ("sw-wake", SW_WAKE_ID, 179),
};
static const struct tegra_pmc_soc tegra234_pmc_soc = {

3
include/soc/tegra/fuse.h
View File

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2012-2023, NVIDIA CORPORATION. All rights reserved.
*/
#ifndef __SOC_TEGRA_FUSE_H__
@ -17,6 +17,7 @@
#define TEGRA186 0x18
#define TEGRA194 0x19
#define TEGRA234 0x23
#define TEGRA264 0x26
#define TEGRA_FUSE_SKU_CALIB_0 0xf0
#define TEGRA30_FUSE_SATA_CALIB 0x124