linux-kernel - [RESEND][PATCH] pxa/hx4700: add platform device and I2C info for AK4641 codec

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Message-Id: <1315832560-1561-1-git-send-email-mad_soft@inbox.ru>
Date:	Mon, 12 Sep 2011 17:02:40 +0400
From:	Dmitry Artamonow <mad_soft@...ox.ru>
To:	Eric Miao <eric.y.miao@...il.com>
Cc:	Philipp Zabel <philipp.zabel@...il.com>,
	linux-arm-kernel@...ts.infradead.org,
	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
	Paul Parsons <lost.distance@...oo.com>
Subject: [RESEND][PATCH] pxa/hx4700: add platform device and I2C info for AK4641 codec

Also rename AK4641 power GPIOs to document the codec chip.

Signed-off-by: Philipp Zabel <philipp.zabel@...il.com>
Signed-off-by: Dmitry Artamonow <mad_soft@...ox.ru>
---
 arch/arm/mach-pxa/hx4700.c              |   25 +++++++++++++++++++++++++
 arch/arm/mach-pxa/include/mach/hx4700.h |    4 ++--
 2 files changed, 27 insertions(+), 2 deletions(-)

Most of the audio support for iPAQ hx4700 has been merged in 3.0, but
this little patch with platform glue has been lost somehow and never applied.
So here's resend - hope this time it'll be more lucky.

Patch is against current Linus' tree (3.1-rc5+). Please ping me, if it needs
rebasing on top of something else.

diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index c748a47..b23b746 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -45,6 +45,7 @@
 #include <mach/hx4700.h>
 #include <mach/irda.h>
 
+#include <sound/ak4641.h>
 #include <video/platform_lcd.h>
 #include <video/w100fb.h>
 
@@ -765,6 +766,28 @@ static struct i2c_board_info __initdata pi2c_board_info[] = {
 };
 
 /*
+ * Asahi Kasei AK4641 on I2C
+ */
+
+static struct ak4641_platform_data ak4641_info = {
+	.gpio_power = GPIO27_HX4700_AK4641_POWER,
+	.gpio_npdn  = GPIO109_HX4700_AK4641_nPDN,
+};
+
+static struct i2c_board_info i2c_board_info[] __initdata = {
+	{
+		I2C_BOARD_INFO("ak4641", 0x12),
+		.platform_data = &ak4641_info,
+	},
+};
+
+static struct platform_device audio = {
+	.name	= "hx4700-audio",
+	.id	= -1,
+};
+
+
+/*
  * PCMCIA
  */
 
@@ -790,6 +813,7 @@ static struct platform_device *devices[] __initdata = {
 	&gpio_vbus,
 	&power_supply,
 	&strataflash,
+	&audio,
 	&pcmcia,
 };
 
@@ -827,6 +851,7 @@ static void __init hx4700_init(void)
 	pxa_set_ficp_info(&ficp_info);
 	pxa27x_set_i2c_power_info(NULL);
 	pxa_set_i2c_info(NULL);
+	i2c_register_board_info(0, ARRAY_AND_SIZE(i2c_board_info));
 	i2c_register_board_info(1, ARRAY_AND_SIZE(pi2c_board_info));
 	pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
 	spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info));
diff --git a/arch/arm/mach-pxa/include/mach/hx4700.h b/arch/arm/mach-pxa/include/mach/hx4700.h
index 3740844..73cd586 100644
--- a/arch/arm/mach-pxa/include/mach/hx4700.h
+++ b/arch/arm/mach-pxa/include/mach/hx4700.h
@@ -29,7 +29,7 @@
 #define GPIO14_HX4700_nWLAN_IRQ			14
 #define GPIO18_HX4700_RDY			18
 #define GPIO22_HX4700_LCD_RL			22
-#define GPIO27_HX4700_CODEC_ON			27
+#define GPIO27_HX4700_AK4641_POWER		27
 #define GPIO32_HX4700_RS232_ON			32
 #define GPIO52_HX4700_CPU_nBATT_FAULT		52
 #define GPIO58_HX4700_TSC2046_nPENIRQ		58
@@ -67,7 +67,7 @@
 #define GPIO105_HX4700_nIR_ON			105
 #define GPIO106_HX4700_CPU_BT_nRESET		106
 #define GPIO107_HX4700_SPK_nSD			107
-#define GPIO109_HX4700_CODEC_nPDN		109
+#define GPIO109_HX4700_AK4641_nPDN		109
 #define GPIO110_HX4700_LCD_LVDD_3V3_ON		110
 #define GPIO111_HX4700_LCD_AVDD_3V3_ON		111
 #define GPIO112_HX4700_LCD_N2V7_7V3_ON		112
-- 
1.7.5.1.300.gc565c

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