clocksource: tegra: move to of_clk_get

The new clockframework introduced DT IDs for each clock. To be able to remove
the device registrations, this driver needs to be updated to use the DT IDs.
Note that the actual removal of the clk_register_clkdev() calls will be done
in a later series.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

3 files changed, 6 insertions, 2 deletions

diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 9a428931d042..37701d8727d8 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -144,6 +144,7 @@
                               0 1 0x04
                               0 41 0x04
                               0 42 0x04>;
+                clocks = <&tegra_car 5>;
         };
 
         tegra_car: clock {
@@ -303,6 +304,7 @@
                 compatible = "nvidia,tegra20-rtc";
                 reg = <0x7000e000 0x100>;
                 interrupts = <0 2 0x04>;
+                clocks = <&tegra_car 4>;
         };
 
         i2c@7000c000 {
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 767803e1fd55..7effa93ea9d9 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -147,6 +147,7 @@
                               0 42 0x04
                               0 121 0x04
                               0 122 0x04>;
+                clocks = <&tegra_car 5>;
         };
 
         tegra_car: clock {
@@ -290,6 +291,7 @@
                 compatible = "nvidia,tegra30-rtc", "nvidia,tegra20-rtc";
                 reg = <0x7000e000 0x100>;
                 interrupts = <0 2 0x04>;
+                clocks = <&tegra_car 4>;
         };
 
         i2c@7000c000 {
diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c
index 0bde03feb095..bc4b8ad78aea 100644
--- a/drivers/clocksource/tegra20_timer.c
+++ b/drivers/clocksource/tegra20_timer.c
@@ -189,7 +189,7 @@ static void __init tegra20_init_timer(void)
                 BUG();
         }
 
-        clk = clk_get_sys("timer", NULL);
+        clk = of_clk_get(np, 0);
         if (IS_ERR(clk)) {
                 pr_warn("Unable to get timer clock. Assuming 12Mhz input clock.\n");
                 rate = 12000000;
@@ -216,7 +216,7 @@ static void __init tegra20_init_timer(void)
          * rtc registers are used by read_persistent_clock, keep the rtc clock
          * enabled
          */
-        clk = clk_get_sys("rtc-tegra", NULL);
+        clk = of_clk_get(np, 0);
         if (IS_ERR(clk))
                 pr_warn("Unable to get rtc-tegra clock\n");
         else