9ec97169e7
Pull PWM subsystem from Thierry Reding: "The new PWM subsystem aims at collecting all implementations of the legacy PWM API and to eventually replace it completely. The subsystem has been in development for over half a year now and many drivers have already been converted. It has been in linux-next for a couple of weeks and there have been no major issues so I think it is ready for inclusion in your tree." Arnd Bergmann <arnd@arndb.de>: "Very much Ack on the new subsystem. It uses the interface declarations as the previously separate pwm drivers, so nothing changes for now in the drivers using it, although it enables us to change those more easily in the future if we want to. This work is also one of the missing pieces that are required to eventually build ARM kernels for multiple platforms, which is currently prohibited (amongs other things) by the fact that you cannot have more than one driver exporting the pwm functions." Tested-and-acked-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Philip, Avinash <avinashphilip@ti.com> # TI's AM33xx platforms Acked-By: Alexandre Pereira da Silva <aletes.xgr@gmail.com> # LPC32XX Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sachin Kamat <sachin.kamat@linaro.org> Fix up trivial conflicts with other cleanups and DT updates. * 'for-3.6' of git://gitorious.org/linux-pwm/linux-pwm: (36 commits) pwm: pwm-tiehrpwm: PWM driver support for EHRPWM pwm: pwm-tiecap: PWM driver support for ECAP APWM pwm: fix used-uninitialized warning in pwm_get() pwm: add lpc32xx PWM support pwm_backlight: pass correct brightness to callback pwm: Use pr_* functions in pwm-samsung.c file pwm: Convert pwm-samsung to use devm_* APIs pwm: Convert pwm-tegra to use devm_clk_get() pwm: pwm-mxs: Return proper error if pwmchip_remove() fails pwm: pwm-bfin: Return proper error if pwmchip_remove() fails pwm: pxa: Propagate pwmchip_remove() error pwm: Convert pwm-pxa to use devm_* APIs pwm: Convert pwm-vt8500 to use devm_* APIs pwm: Convert pwm-imx to use devm_* APIs pwm: Conflict with legacy PWM API pwm: pwm-mxs: add pinctrl support pwm: pwm-mxs: use devm_* managed functions pwm: pwm-mxs: use global reset function stmp_reset_block pwm: pwm-mxs: encode soc name in compatible string pwm: Take over maintainership of the PWM subsystem ...
95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
/*
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* arch/arm/mach-tegra/board-dt-tegra30.c
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*
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* NVIDIA Tegra30 device tree board support
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*
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* Copyright (C) 2011 NVIDIA Corporation
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*
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* Derived from:
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*
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* arch/arm/mach-tegra/board-dt-tegra20.c
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*
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* Copyright (C) 2010 Secret Lab Technologies, Ltd.
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* Copyright (C) 2010 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/of_fdt.h>
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#include <linux/of_irq.h>
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#include <linux/of_platform.h>
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#include <asm/mach/arch.h>
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#include <asm/hardware/gic.h>
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#include <mach/iomap.h>
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#include "board.h"
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#include "clock.h"
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struct of_dev_auxdata tegra30_auxdata_lookup[] __initdata = {
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OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000000, "sdhci-tegra.0", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000200, "sdhci-tegra.1", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000400, "sdhci-tegra.2", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000600, "sdhci-tegra.3", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C000, "tegra-i2c.0", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C400, "tegra-i2c.1", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C500, "tegra-i2c.2", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C700, "tegra-i2c.3", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000D000, "tegra-i2c.4", NULL),
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OF_DEV_AUXDATA("nvidia,tegra30-ahub", 0x70080000, "tegra30-ahub", NULL),
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OF_DEV_AUXDATA("nvidia,tegra30-apbdma", 0x6000a000, "tegra-apbdma", NULL),
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OF_DEV_AUXDATA("nvidia,tegra30-pwm", TEGRA_PWFM_BASE, "tegra-pwm", NULL),
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{}
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};
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static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
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/* name parent rate enabled */
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{ "uarta", "pll_p", 408000000, true },
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{ "pll_a", "pll_p_out1", 564480000, true },
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{ "pll_a_out0", "pll_a", 11289600, true },
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{ "extern1", "pll_a_out0", 0, true },
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{ "clk_out_1", "extern1", 0, true },
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{ "i2s0", "pll_a_out0", 11289600, false},
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{ "i2s1", "pll_a_out0", 11289600, false},
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{ "i2s2", "pll_a_out0", 11289600, false},
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{ "i2s3", "pll_a_out0", 11289600, false},
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{ "i2s4", "pll_a_out0", 11289600, false},
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{ NULL, NULL, 0, 0},
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};
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static void __init tegra30_dt_init(void)
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{
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tegra_clk_init_from_table(tegra_dt_clk_init_table);
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of_platform_populate(NULL, of_default_bus_match_table,
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tegra30_auxdata_lookup, NULL);
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}
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static const char *tegra30_dt_board_compat[] = {
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"nvidia,tegra30",
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NULL
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};
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DT_MACHINE_START(TEGRA30_DT, "NVIDIA Tegra30 (Flattened Device Tree)")
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.map_io = tegra_map_common_io,
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.init_early = tegra30_init_early,
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.init_irq = tegra_dt_init_irq,
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.handle_irq = gic_handle_irq,
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.timer = &tegra_timer,
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.init_machine = tegra30_dt_init,
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.init_late = tegra_init_late,
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.restart = tegra_assert_system_reset,
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.dt_compat = tegra30_dt_board_compat,
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MACHINE_END
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