ARM: tegra: harmony: Beginnings of audio support

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>

diff --git a/arch/arm/mach-tegra/board-harmony-pinmux.c b/arch/arm/mach-tegra/board-harmony-pinmux.c
index 3ada474fbafbb39e56d676d6443bc3c95f2eb80d..4d63e2e97a8d44d08c539bc954dcf7b30d1d78f4 100644 (file)
--- a/arch/arm/mach-tegra/board-harmony-pinmux.c
+++ b/arch/arm/mach-tegra/board-harmony-pinmux.c
@@ -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},
@@ -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},
@@ -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)

diff --git a/arch/arm/mach-tegra/board-harmony.c b/arch/arm/mach-tegra/board-harmony.c
index 2c4a234f8acb8bafe2e3a1a20ea3392c511e7ac3..38c2ab864503de295f081a471dcc56aee448f8af 100644 (file)
--- a/arch/arm/mach-tegra/board-harmony.c
+++ b/arch/arm/mach-tegra/board-harmony.c
@@ -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
@@ -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>
@@ -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,
@@ -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},
 };
 

diff --git a/arch/arm/mach-tegra/board-harmony.h b/arch/arm/mach-tegra/board-harmony.h
index 4fe33b8daa9ddf573f8a924f51104d826b0844e7..9243521a1d190d45ad22824a5def630251316a7b 100644 (file)
--- a/arch/arm/mach-tegra/board-harmony.h
+++ b/arch/arm/mach-tegra/board-harmony.h
@@ -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);