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Message-Id: <1458863503-31121-5-git-send-email-david@lechnology.com>
Date: Thu, 24 Mar 2016 18:51:29 -0500
From: David Lechner <david@...hnology.com>
To: unlisted-recipients:; (no To-header on input)
Cc: petr@...ix.com, sergei.shtylyov@...entembedded.com,
David.Laight@...LAB.COM, David Lechner <david@...hnology.com>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Russell King <linux@....linux.org.uk>,
Sekhar Nori <nsekhar@...com>,
Kevin Hilman <khilman@...nel.org>,
Kishon Vijay Abraham I <kishon@...com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Alan Stern <stern@...land.harvard.edu>, Bin Liu <b-liu@...com>,
Lee Jones <lee.jones@...aro.org>,
devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list),
linux-arm-kernel@...ts.infradead.org (moderated list:ARM PORT),
linux-usb@...r.kernel.org (open list:USB SUBSYSTEM)
Subject: [PATCH v3 04/16] ARM: davinci: Move clock init after ioremap.
Some clocks (such as the USB PHY clocks in DA8xx) will need to use iomem.
The davinci_common_init() function must be called before the ioremap, so
the clock init is now split out as separate function.
Signed-off-by: David Lechner <david@...hnology.com>
---
v3 changes: This is a new patch. It takes care of the issue of unwanted ioremap
in clock set_parent functions.
arch/arm/mach-davinci/clock.c | 4 ++--
arch/arm/mach-davinci/clock.h | 7 ++++++-
arch/arm/mach-davinci/common.c | 6 ------
arch/arm/mach-davinci/da830.c | 2 ++
arch/arm/mach-davinci/da850.c | 2 ++
arch/arm/mach-davinci/dm355.c | 1 +
arch/arm/mach-davinci/dm365.c | 1 +
arch/arm/mach-davinci/dm644x.c | 1 +
arch/arm/mach-davinci/dm646x.c | 1 +
9 files changed, 16 insertions(+), 9 deletions(-)
diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index 3424eac6..a5c2629 100644
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -560,7 +560,7 @@ EXPORT_SYMBOL(davinci_set_pllrate);
* than that used by default in <soc>.c file. The reference clock rate
* should be updated early in the boot process; ideally soon after the
* clock tree has been initialized once with the default reference clock
- * rate (davinci_common_init()).
+ * rate (davinci_clk_init()).
*
* Returns 0 on success, error otherwise.
*/
@@ -581,7 +581,7 @@ int davinci_set_refclk_rate(unsigned long rate)
return 0;
}
-int __init davinci_clk_init(struct clk_lookup *clocks)
+int __init _davinci_clk_init(struct clk_lookup *clocks)
{
struct clk_lookup *c;
struct clk *clk;
diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h
index 1e4e836..8b0fbbe 100644
--- a/arch/arm/mach-davinci/clock.h
+++ b/arch/arm/mach-davinci/clock.h
@@ -124,7 +124,12 @@ struct clk {
.clk = ck, \
} \
-int davinci_clk_init(struct clk_lookup *clocks);
+int _davinci_clk_init(struct clk_lookup *clocks);
+static inline void davinci_clk_init(struct davinci_soc_info *soc_info)
+{
+ if (soc_info->cpu_clks && _davinci_clk_init(soc_info->cpu_clks))
+ panic("davinci_clk_init: Failed to init clocks.\n");
+}
int davinci_set_pllrate(struct pll_data *pll, unsigned int prediv,
unsigned int mult, unsigned int postdiv);
int davinci_set_sysclk_rate(struct clk *clk, unsigned long rate);
diff --git a/arch/arm/mach-davinci/common.c b/arch/arm/mach-davinci/common.c
index f55ef2e..6bc8c22 100644
--- a/arch/arm/mach-davinci/common.c
+++ b/arch/arm/mach-davinci/common.c
@@ -103,12 +103,6 @@ void __init davinci_common_init(struct davinci_soc_info *soc_info)
if (ret < 0)
goto err;
- if (davinci_soc_info.cpu_clks) {
- ret = davinci_clk_init(davinci_soc_info.cpu_clks);
-
- if (ret != 0)
- goto err;
- }
return;
diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index 7187e7f..79d5fc3 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -1214,4 +1214,6 @@ void __init da830_init(void)
da8xx_syscfg0_base = ioremap(DA8XX_SYSCFG0_BASE, SZ_4K);
WARN(!da8xx_syscfg0_base, "Unable to map syscfg0 module");
+
+ davinci_clk_init(&davinci_soc_info_da830);
}
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 97d8779..9f46706 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -1346,4 +1346,6 @@ void __init da850_init(void)
v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
v &= ~CFGCHIP3_PLL1_MASTER_LOCK;
__raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
+
+ davinci_clk_init(&davinci_soc_info_da850);
}
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index a0ecf49..b311b84 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -1052,6 +1052,7 @@ void __init dm355_init(void)
{
davinci_common_init(&davinci_soc_info_dm355);
davinci_map_sysmod();
+ davinci_clk_init(&davinci_soc_info_dm355);
}
int __init dm355_init_video(struct vpfe_config *vpfe_cfg,
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 384d367..2338875 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -1176,6 +1176,7 @@ void __init dm365_init(void)
{
davinci_common_init(&davinci_soc_info_dm365);
davinci_map_sysmod();
+ davinci_clk_init(&davinci_soc_info_dm365);
}
static struct resource dm365_vpss_resources[] = {
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index b4b3a8b..5e672ed 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -932,6 +932,7 @@ void __init dm644x_init(void)
{
davinci_common_init(&davinci_soc_info_dm644x);
davinci_map_sysmod();
+ davinci_clk_init(&davinci_soc_info_dm644x);
}
int __init dm644x_init_video(struct vpfe_config *vpfe_cfg,
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index a43db0f..2840263 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -956,6 +956,7 @@ void __init dm646x_init(void)
{
davinci_common_init(&davinci_soc_info_dm646x);
davinci_map_sysmod();
+ davinci_clk_init(&davinci_soc_info_dm646x);
}
static int __init dm646x_init_devices(void)
--
1.9.1
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