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ARM: tegra: harmony: Beginnings of audio support
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This change includes everything required to enable audio on Harmony, except
those parts which rely on code not currently in Tegra's for-next branch, i.e.
except those parts which rely on merges of the Tegra I2C driver or latest
ASoC subsystem.

* Define GPIO names for audio-related GPIOs
* Set up platform data and platform device for ASoC machine driver
* Register audio-related platform devices
* Initialize audio-related clocks
* Correctly configure pinmux and GPIO enables for audio-related pins

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Stephen Warren authored and Olof Johansson committed Mar 7, 2011
1 parent 986afbe commit ef2b1a0
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Showing 3 changed files with 43 additions and 6 deletions.
16 changes: 10 additions & 6 deletions arch/arm/mach-tegra/board-harmony-pinmux.c
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Original file line number Diff line number Diff line change
Expand Up @@ -27,11 +27,11 @@ static struct tegra_pingroup_config harmony_pinmux[] = {
{TEGRA_PINGROUP_ATC, TEGRA_MUX_NAND, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_ATD, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_ATE, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_CDEV1, TEGRA_MUX_OSC, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_CDEV1, TEGRA_MUX_PLLA_OUT, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_CDEV2, TEGRA_MUX_PLLP_OUT4, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_CRTP, TEGRA_MUX_CRT, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_CSUS, TEGRA_MUX_VI_SENSOR_CLK, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_DAP1, TEGRA_MUX_DAP1, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_DAP1, TEGRA_MUX_DAP1, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_DAP2, TEGRA_MUX_DAP2, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_DAP3, TEGRA_MUX_DAP3, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_DAP4, TEGRA_MUX_DAP4, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE},
Expand Down Expand Up @@ -114,13 +114,13 @@ static struct tegra_pingroup_config harmony_pinmux[] = {
{TEGRA_PINGROUP_SLXK, TEGRA_MUX_PCIE, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_SPDI, TEGRA_MUX_RSVD2, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_SPDO, TEGRA_MUX_RSVD2, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_SPIA, TEGRA_MUX_GMI, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_SPIB, TEGRA_MUX_GMI, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_SPIC, TEGRA_MUX_GMI, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SPIA, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SPIB, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SPIC, TEGRA_MUX_GMI, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_SPID, TEGRA_MUX_SPI1, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_SPIE, TEGRA_MUX_SPI1, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_SPIF, TEGRA_MUX_SPI1, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_SPIG, TEGRA_MUX_SPI2_ALT, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_SPIG, TEGRA_MUX_SPI2_ALT, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_SPIH, TEGRA_MUX_SPI2_ALT, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_UAA, TEGRA_MUX_ULPI, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE},
{TEGRA_PINGROUP_UAB, TEGRA_MUX_ULPI, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE},
Expand All @@ -147,6 +147,10 @@ static struct tegra_gpio_table gpio_table[] = {
{ .gpio = TEGRA_GPIO_SD4_CD, .enable = true },
{ .gpio = TEGRA_GPIO_SD4_WP, .enable = true },
{ .gpio = TEGRA_GPIO_SD4_POWER, .enable = true },
{ .gpio = TEGRA_GPIO_CDC_IRQ, .enable = true },
{ .gpio = TEGRA_GPIO_HP_DET, .enable = true },
{ .gpio = TEGRA_GPIO_INT_MIC_EN, .enable = true },
{ .gpio = TEGRA_GPIO_EXT_MIC_EN, .enable = true },
};

void harmony_pinmux_init(void)
Expand Down
26 changes: 26 additions & 0 deletions arch/arm/mach-tegra/board-harmony.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
* arch/arm/mach-tegra/board-harmony.c
*
* Copyright (C) 2010 Google, Inc.
* Copyright (C) 2011 NVIDIA, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
Expand All @@ -22,12 +23,14 @@
#include <linux/dma-mapping.h>
#include <linux/pda_power.h>
#include <linux/io.h>
#include <linux/gpio.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/setup.h>

#include <mach/harmony_audio.h>
#include <mach/iomap.h>
#include <mach/irqs.h>
#include <mach/sdhci.h>
Expand Down Expand Up @@ -60,11 +63,30 @@ static struct platform_device debug_uart = {
},
};

static struct harmony_audio_platform_data harmony_audio_pdata = {
.gpio_spkr_en = TEGRA_GPIO_SPKR_EN,
.gpio_hp_det = TEGRA_GPIO_HP_DET,
.gpio_int_mic_en = TEGRA_GPIO_INT_MIC_EN,
.gpio_ext_mic_en = TEGRA_GPIO_EXT_MIC_EN,
};

static struct platform_device harmony_audio_device = {
.name = "tegra-snd-harmony",
.id = 0,
.dev = {
.platform_data = &harmony_audio_pdata,
},
};

static struct platform_device *harmony_devices[] __initdata = {
&debug_uart,
&tegra_sdhci_device1,
&tegra_sdhci_device2,
&tegra_sdhci_device4,
&tegra_i2s_device1,
&tegra_das_device,
&tegra_pcm_device,
&harmony_audio_device,
};

static void __init tegra_harmony_fixup(struct machine_desc *desc,
Expand All @@ -80,6 +102,10 @@ static void __init tegra_harmony_fixup(struct machine_desc *desc,
static __initdata struct tegra_clk_init_table harmony_clk_init_table[] = {
/* name parent rate enabled */
{ "uartd", "pll_p", 216000000, true },
{ "pll_a", "pll_p_out1", 56448000, true },
{ "pll_a_out0", "pll_a", 11289600, true },
{ "cdev1", NULL, 0, true },
{ "i2s1", "pll_a_out0", 11289600, false},
{ NULL, NULL, 0, 0},
};

Expand Down
7 changes: 7 additions & 0 deletions arch/arm/mach-tegra/board-harmony.h
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Original file line number Diff line number Diff line change
Expand Up @@ -17,12 +17,19 @@
#ifndef _MACH_TEGRA_BOARD_HARMONY_H
#define _MACH_TEGRA_BOARD_HARMONY_H

#define HARMONY_GPIO_WM8903(_x_) (TEGRA_NR_GPIOS + (_x_))

#define TEGRA_GPIO_SD2_CD TEGRA_GPIO_PI5
#define TEGRA_GPIO_SD2_WP TEGRA_GPIO_PH1
#define TEGRA_GPIO_SD2_POWER TEGRA_GPIO_PT3
#define TEGRA_GPIO_SD4_CD TEGRA_GPIO_PH2
#define TEGRA_GPIO_SD4_WP TEGRA_GPIO_PH3
#define TEGRA_GPIO_SD4_POWER TEGRA_GPIO_PI6
#define TEGRA_GPIO_CDC_IRQ TEGRA_GPIO_PX3
#define TEGRA_GPIO_SPKR_EN HARMONY_GPIO_WM8903(2)
#define TEGRA_GPIO_HP_DET TEGRA_GPIO_PW2
#define TEGRA_GPIO_INT_MIC_EN TEGRA_GPIO_PX0
#define TEGRA_GPIO_EXT_MIC_EN TEGRA_GPIO_PX1

void harmony_pinmux_init(void);

Expand Down

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