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Message-Id: <20180423174549.57412-6-tony@atomide.com>
Date: Mon, 23 Apr 2018 10:45:38 -0700
From: Tony Lindgren <tony@...mide.com>
To: linux-omap@...r.kernel.org
Cc: Dave Gerlach <d-gerlach@...com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Nishanth Menon <nm@...com>, Suman Anna <s-anna@...com>,
Tero Kristo <t-kristo@...com>, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, Keerthy <j-keerthy@...com>
Subject: [PATCH 05/16] ARM: OMAP2+: Initialize SoC PM later
There's no need to probe devices until at module_init time and we
currently have at least PM trying to use I2C for PMICs early on.
As only a part of the SoC init_early is SoC specific, we only need to call
the SoC specific PM init function. And we can modify omap2_common_pm_late_init()
so it becomes a late_initcall().
Note that this changes am335x to call omap2_clk_enable_autoidle_all() that
seems to be missing currently.
Cc: Keerthy <j-keerthy@...com>
Cc: Tero Kristo <t-kristo@...com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
---
arch/arm/mach-omap2/common.h | 16 ++++----
arch/arm/mach-omap2/io.c | 67 +++++--------------------------
arch/arm/mach-omap2/pm.c | 19 +++++++++
arch/arm/mach-omap2/pm33xx-core.c | 4 +-
4 files changed, 40 insertions(+), 66 deletions(-)
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -44,6 +44,9 @@
#define OMAP_INTC_START NR_IRQS
+extern int (*omap_pm_soc_init)(void);
+int omap_pm_nop_init(void);
+
#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP2)
int omap2_pm_init(void);
#else
@@ -79,9 +82,12 @@ static inline int omap4_pm_init_early(void)
#if defined(CONFIG_PM) && (defined(CONFIG_SOC_AM33XX) || \
defined(CONFIG_SOC_AM43XX))
-void amx3_common_pm_init(void);
+int amx3_common_pm_init(void);
#else
-static inline void amx3_common_pm_init(void) { }
+static inline int amx3_common_pm_init(void)
+{
+ return 0;
+}
#endif
extern void omap2_init_common_infrastructure(void);
@@ -122,14 +128,10 @@ void am43xx_init_early(void);
void am43xx_init_late(void);
void omap4430_init_early(void);
void omap5_init_early(void);
-void omap3_init_late(void); /* Do not use this one */
+void omap3_init_late(void);
void omap4430_init_late(void);
void omap2420_init_late(void);
void omap2430_init_late(void);
-void omap3430_init_late(void);
-void omap35xx_init_late(void);
-void omap3630_init_late(void);
-void am35xx_init_late(void);
void ti81xx_init_late(void);
void am33xx_init_late(void);
void omap5_init_late(void);
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -422,11 +422,6 @@ static void __init __maybe_unused omap_hwmod_init_postsetup(void)
omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state);
}
-static void __init __maybe_unused omap_common_late_init(void)
-{
- omap2_common_pm_late_init();
-}
-
#ifdef CONFIG_SOC_OMAP2420
void __init omap2420_init_early(void)
{
@@ -447,9 +442,7 @@ void __init omap2420_init_early(void)
void __init omap2420_init_late(void)
{
- omap_common_late_init();
- omap2_pm_init();
- omap2_clk_enable_autoidle_all();
+ omap_pm_soc_init = omap2_pm_init;
}
#endif
@@ -473,9 +466,7 @@ void __init omap2430_init_early(void)
void __init omap2430_init_late(void)
{
- omap_common_late_init();
- omap2_pm_init();
- omap2_clk_enable_autoidle_all();
+ omap_pm_soc_init = omap2_pm_init;
}
#endif
@@ -526,43 +517,12 @@ void __init am35xx_init_early(void)
void __init omap3_init_late(void)
{
- omap_common_late_init();
- omap3_pm_init();
- omap2_clk_enable_autoidle_all();
-}
-
-void __init omap3430_init_late(void)
-{
- omap_common_late_init();
- omap3_pm_init();
- omap2_clk_enable_autoidle_all();
-}
-
-void __init omap35xx_init_late(void)
-{
- omap_common_late_init();
- omap3_pm_init();
- omap2_clk_enable_autoidle_all();
-}
-
-void __init omap3630_init_late(void)
-{
- omap_common_late_init();
- omap3_pm_init();
- omap2_clk_enable_autoidle_all();
-}
-
-void __init am35xx_init_late(void)
-{
- omap_common_late_init();
- omap3_pm_init();
- omap2_clk_enable_autoidle_all();
+ omap_pm_soc_init = omap3_pm_init;
}
void __init ti81xx_init_late(void)
{
- omap_common_late_init();
- omap2_clk_enable_autoidle_all();
+ omap_pm_soc_init = omap_pm_nop_init;
}
#endif
@@ -618,8 +578,7 @@ void __init am33xx_init_early(void)
void __init am33xx_init_late(void)
{
- omap_common_late_init();
- amx3_common_pm_init();
+ omap_pm_soc_init = amx3_common_pm_init;
}
#endif
@@ -642,9 +601,7 @@ void __init am43xx_init_early(void)
void __init am43xx_init_late(void)
{
- omap_common_late_init();
- omap2_clk_enable_autoidle_all();
- amx3_common_pm_init();
+ omap_pm_soc_init = amx3_common_pm_init;
}
#endif
@@ -672,9 +629,7 @@ void __init omap4430_init_early(void)
void __init omap4430_init_late(void)
{
- omap_common_late_init();
- omap4_pm_init();
- omap2_clk_enable_autoidle_all();
+ omap_pm_soc_init = omap4_pm_init;
}
#endif
@@ -700,9 +655,7 @@ void __init omap5_init_early(void)
void __init omap5_init_late(void)
{
- omap_common_late_init();
- omap4_pm_init();
- omap2_clk_enable_autoidle_all();
+ omap_pm_soc_init = omap4_pm_init;
}
#endif
@@ -725,9 +678,7 @@ void __init dra7xx_init_early(void)
void __init dra7xx_init_late(void)
{
- omap_common_late_init();
- omap4_pm_init();
- omap2_clk_enable_autoidle_all();
+ omap_pm_soc_init = omap4_pm_init;
}
#endif
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -230,8 +230,20 @@ static void __init omap4_init_voltages(void)
omap2_set_init_voltage("iva", "dpll_iva_m5x2_ck", "iva");
}
+int __maybe_unused omap_pm_nop_init(void)
+{
+ return 0;
+}
+
+int (*omap_pm_soc_init)(void);
+
int __init omap2_common_pm_late_init(void)
{
+ int error;
+
+ if (!omap_pm_soc_init)
+ return 0;
+
/* Init the voltage layer */
omap3_twl_init();
omap4_twl_init();
@@ -244,5 +256,12 @@ int __init omap2_common_pm_late_init(void)
/* Smartreflex device init */
omap_devinit_smartreflex();
+ error = omap_pm_soc_init();
+ if (error)
+ pr_warn("%s: pm soc init failed: %i\n", __func__, error);
+
+ omap2_clk_enable_autoidle_all();
+
return 0;
}
+omap_late_initcall(omap2_common_pm_late_init);
diff --git a/arch/arm/mach-omap2/pm33xx-core.c b/arch/arm/mach-omap2/pm33xx-core.c
--- a/arch/arm/mach-omap2/pm33xx-core.c
+++ b/arch/arm/mach-omap2/pm33xx-core.c
@@ -173,7 +173,7 @@ static struct am33xx_pm_platform_data *am33xx_pm_get_pdata(void)
return NULL;
}
-void __init amx3_common_pm_init(void)
+int __init amx3_common_pm_init(void)
{
struct am33xx_pm_platform_data *pdata;
struct platform_device_info devinfo;
@@ -186,4 +186,6 @@ void __init amx3_common_pm_init(void)
devinfo.size_data = sizeof(*pdata);
devinfo.id = -1;
platform_device_register_full(&devinfo);
+
+ return 0;
}
--
2.17.0
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