ARM: tegra: migrate to new clock code

Migrate Tegra clock support to drivers/clk/tegra, this involves
moving:
1. definition of tegra_cpu_car_ops to clk.c
2. definition of reset functions to clk-peripheral.c
3. change parent of cpu clock.
4. Remove legacy clock initialization.
5. Initialize clocks using DT.
6. Remove all instance of mach/clk.h

Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
[swarren: use to_clk_periph_gate().]
Signed-off-by: Stephen Warren <swarren@nvidia.com>

11 files changed, 62 insertions, 13 deletions

diff --git a/drivers/clk/tegra/clk-periph.c b/drivers/clk/tegra/clk-periph.c
index 5978e81b175b..788486e6331a 100644
--- a/drivers/clk/tegra/clk-periph.c
+++ b/drivers/clk/tegra/clk-periph.c
@@ -110,6 +110,44 @@ static void clk_periph_disable(struct clk_hw *hw)
         gate_ops->disable(gate_hw);
 }
 
+void tegra_periph_reset_deassert(struct clk *c)
+{
+        struct clk_hw *hw = __clk_get_hw(c);
+        struct tegra_clk_periph *periph = to_clk_periph(hw);
+        struct tegra_clk_periph_gate *gate;
+
+        if (periph->magic != TEGRA_CLK_PERIPH_MAGIC) {
+                gate = to_clk_periph_gate(hw);
+                if (gate->magic != TEGRA_CLK_PERIPH_GATE_MAGIC) {
+                        WARN_ON(1);
+                        return;
+                }
+        } else {
+                gate = &periph->gate;
+        }
+
+        tegra_periph_reset(gate, 0);
+}
+
+void tegra_periph_reset_assert(struct clk *c)
+{
+        struct clk_hw *hw = __clk_get_hw(c);
+        struct tegra_clk_periph *periph = to_clk_periph(hw);
+        struct tegra_clk_periph_gate *gate;
+
+        if (periph->magic != TEGRA_CLK_PERIPH_MAGIC) {
+                gate = to_clk_periph_gate(hw);
+                if (gate->magic != TEGRA_CLK_PERIPH_GATE_MAGIC) {
+                        WARN_ON(1);
+                        return;
+                }
+        } else {
+                gate = &periph->gate;
+        }
+
+        tegra_periph_reset(gate, 1);
+}
+
 const struct clk_ops tegra_clk_periph_ops = {
         .get_parent = clk_periph_get_parent,
         .set_parent = clk_periph_set_parent,
diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c
index cf023a937208..a603b9af0ad3 100644
--- a/drivers/clk/tegra/clk.c
+++ b/drivers/clk/tegra/clk.c
@@ -16,9 +16,14 @@
 
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/clk/tegra.h>
 
 #include "clk.h"
 
+/* Global data of Tegra CPU CAR ops */
+struct tegra_cpu_car_ops *tegra_cpu_car_ops;
+
 void __init tegra_init_dup_clks(struct tegra_clk_duplicate *dup_list,
                                 struct clk *clks[], int clk_max)
 {
@@ -67,3 +72,14 @@ void __init tegra_init_from_table(struct tegra_clk_init_table *tbl,
                         }
         }
 }
+
+static const struct of_device_id tegra_dt_clk_match[] = {
+        { .compatible = "nvidia,tegra20-car", .data = tegra20_clock_init },
+        { .compatible = "nvidia,tegra30-car", .data = tegra30_clock_init },
+        { }
+};
+
+void __init tegra_clocks_init(void)
+{
+        of_clk_init(tegra_dt_clk_match);
+}
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index c39e61bc8172..afc9b89e20f4 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -31,8 +31,8 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
+#include <linux/clk/tegra.h>
 
-#include <mach/clk.h>
 #include "dmaengine.h"
 
 #define TEGRA_APBDMA_GENERAL                    0x0
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 656b2e3334a6..56813f967c8f 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -12,8 +12,7 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
-
-#include <mach/clk.h>
+#include <linux/clk/tegra.h>
 
 #include "drm.h"
 #include "dc.h"
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 3a503c9e4686..d980dc75788c 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -11,7 +11,6 @@
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 
-#include <mach/clk.h>
 #include <linux/dma-mapping.h>
 #include <asm/dma-iommu.h>
 
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index e060c7e6434d..92ad276cc5e0 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -14,8 +14,7 @@
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
-
-#include <mach/clk.h>
+#include <linux/clk/tegra.h>
 
 #include "hdmi.h"
 #include "drm.h"
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 7b38877ffec1..c7aca35e38fd 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -29,11 +29,10 @@
 #include <linux/of_i2c.h>
 #include <linux/of_device.h>
 #include <linux/module.h>
+#include <linux/clk/tegra.h>
 
 #include <asm/unaligned.h>
 
-#include <mach/clk.h>
-
 #define TEGRA_I2C_TIMEOUT (msecs_to_jiffies(1000))
 #define BYTES_PER_FIFO_WORD 4
 
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index c76f96872d31..54ac1dc7d477 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -30,7 +30,7 @@
 #include <linux/clk.h>
 #include <linux/slab.h>
 #include <linux/input/tegra_kbc.h>
-#include <mach/clk.h>
+#include <linux/clk/tegra.h>
 
 #define KBC_MAX_DEBOUNCE_CNT    0x3ffu
 
diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 448a8cc71df3..02feaa51a0fa 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -34,7 +34,7 @@
 #include <linux/of_device.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi-tegra.h>
-#include <mach/clk.h>
+#include <linux/clk/tegra.h>
 
 #define SPI_COMMAND                             0x000
 #define SPI_GO                                  BIT(30)
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index 651167f2e0af..fa208a5cc612 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -35,7 +35,7 @@
 #include <linux/of_device.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi-tegra.h>
-#include <mach/clk.h>
+#include <linux/clk/tegra.h>
 
 #define SLINK_COMMAND                   0x000
 #define SLINK_BIT_LENGTH(x)             (((x) & 0x1f) << 0)
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 2830946860d1..d51615b19797 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -37,8 +37,7 @@
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
-
-#include <mach/clk.h>
+#include <linux/clk/tegra.h>
 
 #include "nvec.h"