[PATCH 2/6] clk: tegra: make tegra_clocks_apply_init_table arch_initcall

Peter De Schrijver
2014-07-15T15:24:32Z

tegra_clocks_apply_init_table needs to be called after the udelay loop has
been calibrated (see 441f199a37cfd66c5dd8dd45490bd3ea6971117d why that is).
On existing Tegra SoCs this was done by calling tegra_clocks_apply_init_table
from tegra_dt_init. To make this also work on ARM64, we need to
change this into an initcall. tegra_dt_init is called from customize_machine
which is an arch_initcall. Therefore this should also work on existing 32bit
Tegra SoCs.

Tested on Tegra20 (ventana), Tegra30 (beaverboard), Tegra124 (jetson TK1) and
Tegra132.

Signed-off-by: Peter De Schrijver <pdeschrijver-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
arch/arm/mach-tegra/tegra.c | 3 ---
drivers/clk/tegra/clk.c | 7 +++++--
include/linux/clk/tegra.h | 2 --
3 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index 15ac9fc..6c5cad5 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -32,7 +32,6 @@
#include <linux/slab.h>
#include <linux/sys_soc.h>
#include <linux/usb/tegra_usb_phy.h>
-#include <linux/clk/tegra.h>
#include <linux/irqchip.h>

#include <asm/hardware/cache-l2x0.h>
@@ -96,8 +95,6 @@ static void __init tegra_dt_init(void)

tegra_pmc_init();

- tegra_clocks_apply_init_table();
-
soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
if (!soc_dev_attr)
goto out;
diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c
index d081732..65cde4e 100644
--- a/drivers/clk/tegra/clk.c
+++ b/drivers/clk/tegra/clk.c
@@ -290,10 +290,13 @@ struct clk ** __init tegra_lookup_dt_id(int clk_id,

tegra_clk_apply_init_table_func tegra_clk_apply_init_table;

-void __init tegra_clocks_apply_init_table(void)
+static int __init tegra_clocks_apply_init_table(void)
{
if (!tegra_clk_apply_init_table)
- return;
+ return 0;

tegra_clk_apply_init_table();
+
+ return 0;
}
+arch_initcall(tegra_clocks_apply_init_table);
diff --git a/include/linux/clk/tegra.h b/include/linux/clk/tegra.h
index 3ca9fca..19c4208 100644
--- a/include/linux/clk/tegra.h
+++ b/include/linux/clk/tegra.h
@@ -120,6 +120,4 @@ static inline void tegra_cpu_clock_resume(void)
}
#endif

-void tegra_clocks_apply_init_table(void);
-
#endif /* __LINUX_CLK_TEGRA_H_ */
--
1.7.7.rc0.72.g4b5ea.dirty

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