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authorUlf Hansson <ulf.hansson@linaro.org>2023-06-30 17:11:57 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2023-07-14 11:41:59 +0300
commitbd4ce2d7f988c9becd711973e2b751c6cb5f391a (patch)
tree8e50fd2c823246ca16681b7f49dba96085518332 /arch/arm/mach-ux500
parent444ffc820d9066910754c67d3bf55d1dd5f26208 (diff)
downloadlinux-bd4ce2d7f988c9becd711973e2b751c6cb5f391a.tar.xz
ARM: ux500: Convert power-domain code into a regular platform driver
To make the code more standalone and moveable, let's convert it into a platform driver. Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'arch/arm/mach-ux500')
-rw-r--r--arch/arm/mach-ux500/cpu-db8500.c5
-rw-r--r--arch/arm/mach-ux500/pm_domains.c25
-rw-r--r--arch/arm/mach-ux500/pm_domains.h17
3 files changed, 20 insertions, 27 deletions
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 7cc0dd8ed991..b1a70f203372 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -26,8 +26,6 @@
#include <asm/mach/map.h>
#include <asm/mach/arch.h>
-#include "pm_domains.h"
-
static int __init ux500_l2x0_unlock(void)
{
int i;
@@ -115,9 +113,6 @@ static const struct of_device_id u8500_local_bus_nodes[] = {
static void __init u8500_init_machine(void)
{
- /* Initialize ux500 power domains */
- ux500_pm_domains_init();
-
of_platform_populate(NULL, u8500_local_bus_nodes,
NULL, NULL);
}
diff --git a/arch/arm/mach-ux500/pm_domains.c b/arch/arm/mach-ux500/pm_domains.c
index 427b9ac4af6c..3d4f111ed156 100644
--- a/arch/arm/mach-ux500/pm_domains.c
+++ b/arch/arm/mach-ux500/pm_domains.c
@@ -6,6 +6,9 @@
*
* Implements PM domains using the generic PM domain for ux500.
*/
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
#include <linux/printk.h>
#include <linux/slab.h>
#include <linux/err.h>
@@ -13,7 +16,6 @@
#include <linux/pm_domain.h>
#include <dt-bindings/arm/ux500_pm_domains.h>
-#include "pm_domains.h"
static int pd_power_off(struct generic_pm_domain *domain)
{
@@ -49,18 +51,17 @@ static struct generic_pm_domain *ux500_pm_domains[NR_DOMAINS] = {
[DOMAIN_VAPE] = &ux500_pm_domain_vape,
};
-static const struct of_device_id ux500_pm_domain_matches[] __initconst = {
+static const struct of_device_id ux500_pm_domain_matches[] = {
{ .compatible = "stericsson,ux500-pm-domains", },
{ },
};
-int __init ux500_pm_domains_init(void)
+static int ux500_pm_domains_probe(struct platform_device *pdev)
{
- struct device_node *np;
+ struct device_node *np = pdev->dev.of_node;
struct genpd_onecell_data *genpd_data;
int i;
- np = of_find_matching_node(NULL, ux500_pm_domain_matches);
if (!np)
return -ENODEV;
@@ -77,3 +78,17 @@ int __init ux500_pm_domains_init(void)
of_genpd_add_provider_onecell(np, genpd_data);
return 0;
}
+
+static struct platform_driver ux500_pm_domains_driver = {
+ .probe = ux500_pm_domains_probe,
+ .driver = {
+ .name = "ux500_pm_domains",
+ .of_match_table = ux500_pm_domain_matches,
+ },
+};
+
+static int __init ux500_pm_domains_init(void)
+{
+ return platform_driver_register(&ux500_pm_domains_driver);
+}
+arch_initcall(ux500_pm_domains_init);
diff --git a/arch/arm/mach-ux500/pm_domains.h b/arch/arm/mach-ux500/pm_domains.h
deleted file mode 100644
index 33c55f2c6b3c..000000000000
--- a/arch/arm/mach-ux500/pm_domains.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2014 Linaro Ltd.
- *
- * Author: Ulf Hansson <ulf.hansson@linaro.org>
- */
-
-#ifndef __MACH_UX500_PM_DOMAINS_H
-#define __MACH_UX500_PM_DOMAINS_H
-
-#ifdef CONFIG_PM_GENERIC_DOMAINS
-extern int __init ux500_pm_domains_init(void);
-#else
-static inline int ux500_pm_domains_init(void) { return 0; }
-#endif
-
-#endif