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ARM: tegra: migrate to new clock code

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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>
This commit is contained in:
Prashant Gaikwad 2013-01-11 13:16:26 +05:30 committed by Stephen Warren
parent b08e8c0ecc
commit 61fd290d21
21 changed files with 73 additions and 142 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
arch/arm/mach-tegra/board-dt-tegra20.c
View File

@ -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

31
arch/arm/mach-tegra/board-dt-tegra30.c
View File

@ -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);
}

19
arch/arm/mach-tegra/clock.c
View File

@ -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. */

44
arch/arm/mach-tegra/common.c
View File

@ -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();

2
arch/arm/mach-tegra/cpu-tegra.c
View File

@ -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);

3
arch/arm/mach-tegra/include/mach/clk.h
View File

@ -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

2
arch/arm/mach-tegra/pcie.c
View File

@ -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"

2
arch/arm/mach-tegra/powergate.c
View File

@ -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"

38
drivers/clk/tegra/clk-periph.c
View File

@ -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,

16
drivers/clk/tegra/clk.c
View File

@ -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);
}

2
drivers/dma/tegra20-apb-dma.c
View File

@ -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

3
drivers/gpu/drm/tegra/dc.c
View File

@ -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"

1
drivers/gpu/drm/tegra/drm.c
View File

@ -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>

3
drivers/gpu/drm/tegra/hdmi.c
View File

@ -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"

3
drivers/i2c/busses/i2c-tegra.c
View File

@ -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

2
drivers/input/keyboard/tegra-kbc.c
View File

@ -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

2
drivers/spi/spi-tegra20-sflash.c
View File

@ -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)

2
drivers/spi/spi-tegra20-slink.c
View File

@ -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)

3
drivers/staging/nvec/nvec.c
View File

@ -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"

5
include/linux/clk/tegra.h
View File

@ -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_ */

2
sound/soc/tegra/tegra30_ahub.c
View File

@ -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"