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Subject[PATCH v4 8/9] arm: tegra: Migrate to new clock code
Date
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>
---
arch/arm/mach-tegra/board-dt-tegra20.c | 30 ---------------------
arch/arm/mach-tegra/board-dt-tegra30.c | 31 ----------------------
arch/arm/mach-tegra/clock.c | 19 -------------
arch/arm/mach-tegra/common.c | 44 +------------------------------
arch/arm/mach-tegra/cpu-tegra.c | 2 +-
arch/arm/mach-tegra/include/mach/clk.h | 3 --
arch/arm/mach-tegra/pcie.c | 2 +-
arch/arm/mach-tegra/powergate.c | 2 +-
drivers/clk/tegra/clk-periph.c | 38 +++++++++++++++++++++++++++
drivers/clk/tegra/clk.c | 16 +++++++++++
drivers/dma/tegra20-apb-dma.c | 2 +-
drivers/gpu/drm/tegra/dc.c | 3 +-
drivers/gpu/drm/tegra/drm.c | 1 -
drivers/gpu/drm/tegra/hdmi.c | 3 +-
drivers/i2c/busses/i2c-tegra.c | 3 +-
drivers/input/keyboard/tegra-kbc.c | 2 +-
drivers/spi/spi-tegra20-sflash.c | 2 +-
drivers/spi/spi-tegra20-slink.c | 2 +-
drivers/staging/nvec/nvec.c | 3 +-
include/linux/clk/tegra.h | 5 +++
sound/soc/tegra/tegra30_ahub.c | 2 +-
21 files changed, 73 insertions(+), 142 deletions(-)

diff --git a/arch/arm/mach-tegra/board-dt-tegra20.c b/arch/arm/mach-tegra/board-dt-tegra20.c
index e1f87dd..0c11b8a 100644
--- a/arch/arm/mach-tegra/board-dt-tegra20.c
+++ b/arch/arm/mach-tegra/board-dt-tegra20.c
@@ -42,7 +42,6 @@
#include <asm/setup.h>

#include "board.h"
-#include "clock.h"
#include "common.h"
#include "iomap.h"

@@ -104,37 +103,8 @@ static struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
{}
};

-static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
- /* name parent rate enabled */
- { "uarta", "pll_p", 216000000, true },
- { "uartd", "pll_p", 216000000, true },
- { "usbd", "clk_m", 12000000, false },
- { "usb2", "clk_m", 12000000, false },
- { "usb3", "clk_m", 12000000, false },
- { "pll_a", "pll_p_out1", 56448000, true },
- { "pll_a_out0", "pll_a", 11289600, true },
- { "cdev1", NULL, 0, true },
- { "blink", "clk_32k", 32768, true },
- { "i2s1", "pll_a_out0", 11289600, false},
- { "i2s2", "pll_a_out0", 11289600, false},
- { "sdmmc1", "pll_p", 48000000, false},
- { "sdmmc3", "pll_p", 48000000, false},
- { "sdmmc4", "pll_p", 48000000, false},
- { "spi", "pll_p", 20000000, false },
- { "sbc1", "pll_p", 100000000, false },
- { "sbc2", "pll_p", 100000000, false },
- { "sbc3", "pll_p", 100000000, false },
- { "sbc4", "pll_p", 100000000, false },
- { "host1x", "pll_c", 150000000, false },
- { "disp1", "pll_p", 600000000, false },
- { "disp2", "pll_p", 600000000, false },
- { NULL, NULL, 0, 0},
-};
-
static void __init tegra_dt_init(void)
{
- tegra_clk_init_from_table(tegra_dt_clk_init_table);
-
/*
* Finished with the static registrations now; fill in the missing
* devices
diff --git a/arch/arm/mach-tegra/board-dt-tegra30.c b/arch/arm/mach-tegra/board-dt-tegra30.c
index cfe5fc0..92f6014 100644
--- a/arch/arm/mach-tegra/board-dt-tegra30.c
+++ b/arch/arm/mach-tegra/board-dt-tegra30.c
@@ -35,7 +35,6 @@
#include <asm/hardware/gic.h>

#include "board.h"
-#include "clock.h"
#include "common.h"
#include "iomap.h"

@@ -67,38 +66,8 @@ static struct of_dev_auxdata tegra30_auxdata_lookup[] __initdata = {
{}
};

-static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
- /* name parent rate enabled */
- { "uarta", "pll_p", 408000000, true },
- { "pll_a", "pll_p_out1", 564480000, true },
- { "pll_a_out0", "pll_a", 11289600, true },
- { "extern1", "pll_a_out0", 0, true },
- { "clk_out_1", "extern1", 0, true },
- { "blink", "clk_32k", 32768, true },
- { "i2s0", "pll_a_out0", 11289600, false},
- { "i2s1", "pll_a_out0", 11289600, false},
- { "i2s2", "pll_a_out0", 11289600, false},
- { "i2s3", "pll_a_out0", 11289600, false},
- { "i2s4", "pll_a_out0", 11289600, false},
- { "sdmmc1", "pll_p", 48000000, false},
- { "sdmmc3", "pll_p", 48000000, false},
- { "sdmmc4", "pll_p", 48000000, false},
- { "sbc1", "pll_p", 100000000, false},
- { "sbc2", "pll_p", 100000000, false},
- { "sbc3", "pll_p", 100000000, false},
- { "sbc4", "pll_p", 100000000, false},
- { "sbc5", "pll_p", 100000000, false},
- { "sbc6", "pll_p", 100000000, false},
- { "host1x", "pll_c", 150000000, false},
- { "disp1", "pll_p", 600000000, false},
- { "disp2", "pll_p", 600000000, false},
- { NULL, NULL, 0, 0},
-};
-
static void __init tegra30_dt_init(void)
{
- tegra_clk_init_from_table(tegra_dt_clk_init_table);
-
of_platform_populate(NULL, of_default_bus_match_table,
tegra30_auxdata_lookup, NULL);
}
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index 8c0ff06..baa0c5b 100644
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -31,9 +31,6 @@
#include "board.h"
#include "clock.h"

-/* Global data of Tegra CPU CAR ops */
-struct tegra_cpu_car_ops *tegra_cpu_car_ops;
-
/*
* Locking:
*
@@ -131,22 +128,6 @@ void tegra_clk_init_from_table(struct tegra_clk_init_table *table)
tegra_clk_init_one_from_table(table);
}

-void tegra_periph_reset_deassert(struct clk *c)
-{
- struct clk_tegra *clk = to_clk_tegra(__clk_get_hw(c));
- BUG_ON(!clk->reset);
- clk->reset(__clk_get_hw(c), false);
-}
-EXPORT_SYMBOL(tegra_periph_reset_deassert);
-
-void tegra_periph_reset_assert(struct clk *c)
-{
- struct clk_tegra *clk = to_clk_tegra(__clk_get_hw(c));
- BUG_ON(!clk->reset);
- clk->reset(__clk_get_hw(c), true);
-}
-EXPORT_SYMBOL(tegra_periph_reset_assert);
-
/* Several extended clock configuration bits (e.g., clock routing, clock
* phase control) are included in PLL and peripheral clock source
* registers. */
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 3efe80b..87dd69c 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -22,6 +22,7 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/of_irq.h>
+#include <linux/clk/tegra.h>

#include <asm/hardware/cache-l2x0.h>
#include <asm/hardware/gic.h>
@@ -29,7 +30,6 @@
#include <mach/powergate.h>

#include "board.h"
-#include "clock.h"
#include "common.h"
#include "fuse.h"
#include "iomap.h"
@@ -65,6 +65,7 @@ static const struct of_device_id tegra_dt_irq_match[] __initconst = {

void __init tegra_dt_init_irq(void)
{
+ tegra_clocks_init();
tegra_init_irq();
of_irq_init(tegra_dt_irq_match);
}
@@ -80,43 +81,6 @@ void tegra_assert_system_reset(char mode, const char *cmd)
writel_relaxed(reg, reset);
}

-#ifdef CONFIG_ARCH_TEGRA_2x_SOC
-static __initdata struct tegra_clk_init_table tegra20_clk_init_table[] = {
- /* name parent rate enabled */
- { "clk_m", NULL, 0, true },
- { "pll_p", "clk_m", 216000000, true },
- { "pll_p_out1", "pll_p", 28800000, true },
- { "pll_p_out2", "pll_p", 48000000, true },
- { "pll_p_out3", "pll_p", 72000000, true },
- { "pll_p_out4", "pll_p", 24000000, true },
- { "pll_c", "clk_m", 600000000, true },
- { "pll_c_out1", "pll_c", 120000000, true },
- { "sclk", "pll_c_out1", 120000000, true },
- { "hclk", "sclk", 120000000, true },
- { "pclk", "hclk", 60000000, true },
- { "csite", NULL, 0, true },
- { "emc", NULL, 0, true },
- { "cpu", NULL, 0, true },
- { NULL, NULL, 0, 0},
-};
-#endif
-
-#ifdef CONFIG_ARCH_TEGRA_3x_SOC
-static __initdata struct tegra_clk_init_table tegra30_clk_init_table[] = {
- /* name parent rate enabled */
- { "clk_m", NULL, 0, true },
- { "pll_p", "pll_ref", 408000000, true },
- { "pll_p_out1", "pll_p", 9600000, true },
- { "pll_p_out4", "pll_p", 102000000, true },
- { "sclk", "pll_p_out4", 102000000, true },
- { "hclk", "sclk", 102000000, true },
- { "pclk", "hclk", 51000000, true },
- { "csite", NULL, 0, true },
- { NULL, NULL, 0, 0},
-};
-#endif
-
-
static void __init tegra_init_cache(void)
{
#ifdef CONFIG_CACHE_L2X0
@@ -141,8 +105,6 @@ void __init tegra20_init_early(void)
tegra_cpu_reset_handler_init();
tegra_apb_io_init();
tegra_init_fuse();
- tegra2_init_clocks();
- tegra_clk_init_from_table(tegra20_clk_init_table);
tegra_init_cache();
tegra_pmc_init();
tegra_powergate_init();
@@ -155,8 +117,6 @@ void __init tegra30_init_early(void)
tegra_cpu_reset_handler_init();
tegra_apb_io_init();
tegra_init_fuse();
- tegra30_init_clocks();
- tegra_clk_init_from_table(tegra30_clk_init_table);
tegra_init_cache();
tegra_pmc_init();
tegra_powergate_init();
diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c
index 85d4a23..ebffed6 100644
--- a/arch/arm/mach-tegra/cpu-tegra.c
+++ b/arch/arm/mach-tegra/cpu-tegra.c
@@ -266,7 +266,7 @@ static int __init tegra_cpufreq_init(void)
if (IS_ERR(pll_x_clk))
return PTR_ERR(pll_x_clk);

- pll_p_clk = clk_get_sys(NULL, "pll_p");
+ pll_p_clk = clk_get_sys(NULL, "pll_p_cclk");
if (IS_ERR(pll_p_clk))
return PTR_ERR(pll_p_clk);

diff --git a/arch/arm/mach-tegra/include/mach/clk.h b/arch/arm/mach-tegra/include/mach/clk.h
index 95f3a54..85bbf10 100644
--- a/arch/arm/mach-tegra/include/mach/clk.h
+++ b/arch/arm/mach-tegra/include/mach/clk.h
@@ -31,9 +31,6 @@ enum tegra_clk_ex_param {
TEGRA_CLK_PLLD_MIPI_MUX_SEL,
};

-void tegra_periph_reset_deassert(struct clk *c);
-void tegra_periph_reset_assert(struct clk *c);
-
#ifndef CONFIG_COMMON_CLK
unsigned long clk_get_rate_all_locked(struct clk *c);
#endif
diff --git a/arch/arm/mach-tegra/pcie.c b/arch/arm/mach-tegra/pcie.c
index 53d0858..73993ce 100644
--- a/arch/arm/mach-tegra/pcie.c
+++ b/arch/arm/mach-tegra/pcie.c
@@ -33,11 +33,11 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/export.h>
+#include <linux/clk/tegra.h>

#include <asm/sizes.h>
#include <asm/mach/pci.h>

-#include <mach/clk.h>
#include <mach/powergate.h>

#include "board.h"
diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c
index 2cc1185..c6bc8f8 100644
--- a/arch/arm/mach-tegra/powergate.c
+++ b/arch/arm/mach-tegra/powergate.c
@@ -26,8 +26,8 @@
#include <linux/io.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
+#include <linux/clk/tegra.h>

-#include <mach/clk.h>
#include <mach/powergate.h>

#include "fuse.h"
diff --git a/drivers/clk/tegra/clk-periph.c b/drivers/clk/tegra/clk-periph.c
index ed0ded2..c4ccb01 100644
--- a/drivers/clk/tegra/clk-periph.c
+++ b/drivers/clk/tegra/clk-periph.c
@@ -112,6 +112,44 @@ 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 = container_of(hw, struct tegra_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 = container_of(hw, struct tegra_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 cf023a9..a603b9a 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 efdfffa..f5f8a52 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 0744103..cd2f8fa 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 3a503c9..d980dc7 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 ab40164..2f39d3b 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 dcea77b..c048c98 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 c76f968..54ac1dc 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 448a8cc..02feaa5 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 651167f..fa208a5 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 2830946..d51615b 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"

diff --git a/include/linux/clk/tegra.h b/include/linux/clk/tegra.h
index 0977f2a..a7e5a39 100644
--- a/include/linux/clk/tegra.h
+++ b/include/linux/clk/tegra.h
@@ -17,6 +17,8 @@
#ifndef __LINUX_CLK_TEGRA_H_
#define __LINUX_CLK_TEGRA_H_

+#include <linux/clk.h>
+
/*
* Tegra CPU clock and reset control ops
*
@@ -120,5 +122,8 @@ static inline void tegra_cpu_clock_resume(void)

void tegra20_cpu_car_ops_init(void);
void tegra30_cpu_car_ops_init(void);
+void tegra_periph_reset_deassert(struct clk *c);
+void tegra_periph_reset_assert(struct clk *c);
+void tegra_clocks_init(void);

#endif /* __LINUX_CLK_TEGRA_H_ */
diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c
index f354dc3..bb31c41 100644
--- a/sound/soc/tegra/tegra30_ahub.c
+++ b/sound/soc/tegra/tegra30_ahub.c
@@ -25,7 +25,7 @@
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/slab.h>
-#include <mach/clk.h>
+#include <linux/clk/tegra.h>
#include <sound/soc.h>
#include "tegra30_ahub.h"

--
1.7.4.1


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