[PATCH V2 2/3] ARM: tegra: get PMC clock source from DT

[Joseph Lo]

The clock source of PMC should be PCLK and gotten from DT.

Signed-off-by: Joseph Lo <jose...@nvidia.com>
---
V2:
* new in this change
---
 arch/arm/mach-tegra/common.c | 2 +-
 arch/arm/mach-tegra/pmc.c    | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index f0315c9..b02ebe7 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -61,6 +61,7 @@ u32 tegra_uart_config[4] = {
 void __init tegra_dt_init_irq(void)
 {
        tegra_clocks_init();
+       tegra_pmc_init();
        tegra_init_irq();
        irqchip_init();
 }
@@ -100,7 +101,6 @@ void __init tegra_init_early(void)
        tegra_apb_io_init();
        tegra_init_fuse();
        tegra_init_cache();
-       tegra_pmc_init();
        tegra_powergate_init();
        tegra_hotplug_init();
 }
diff --git a/arch/arm/mach-tegra/pmc.c b/arch/arm/mach-tegra/pmc.c
index b30e921..05259fd 100644
--- a/arch/arm/mach-tegra/pmc.c
+++ b/arch/arm/mach-tegra/pmc.c
@@ -19,6 +19,7 @@
 #include <linux/io.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/clk.h>
 
 #define PMC_CTRL                       0x0
 #define PMC_CTRL_INTR_LOW              (1 << 17)
@@ -43,6 +44,7 @@ static DEFINE_SPINLOCK(tegra_powergate_lock);
 
 static void __iomem *tegra_pmc_base;
 static bool tegra_pmc_invert_interrupt;
+static struct clk *tegra_pclk;
 
 static inline u32 tegra_pmc_readl(u32 reg)
 {
@@ -151,6 +153,8 @@ static void tegra_pmc_parse_dt(void)
 
        tegra_pmc_invert_interrupt = of_property_read_bool(np,
                                     "nvidia,invert-interrupt");
+       tegra_pclk = of_clk_get(np, 0);
+       WARN_ON_ONCE(IS_ERR(tegra_pclk));
 }
 
 void __init tegra_pmc_init(void)
-- 
1.8.1.5

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