From 9c664c3b9bcfbb302adbee62fff8eb6635ccbefb Mon Sep 17 00:00:00 2001 From: Alan Tull Date: Wed, 27 Oct 2010 10:44:34 -0500 Subject: ENGR00133149 MX50: external speaker amp shutdown Use gpio_6_15 to shutdown external speaker amp when not in use. Signed-off-by: Alan Tull --- arch/arm/mach-mx5/mx50_rdp.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-mx5/mx50_rdp.c b/arch/arm/mach-mx5/mx50_rdp.c index 5d87d04ee9fa..377de3c9f105 100644 --- a/arch/arm/mach-mx5/mx50_rdp.c +++ b/arch/arm/mach-mx5/mx50_rdp.c @@ -112,6 +112,7 @@ #define CSPI_CS1 (3*32 + 13) /*GPIO_4_13 */ #define CSPI_CS2 (3*32 + 11) /*GPIO_4_11*/ #define SGTL_OSCEN (5*32 + 8) /*GPIO_6_8*/ +#define SGTL_AMP_SHDN (5*32 + 15) /*GPIO_6_15*/ #define FEC_EN (5*32 + 23) /*GPIO_6_23*/ #define FEC_RESET_B (3*32 + 12) /*GPIO_4_12*/ #define USB_OTG_PWR (5*32 + 25) /*GPIO_6_25*/ @@ -266,6 +267,10 @@ static struct pad_desc mx50_rdp[] = { /* SGTL500_OSC_EN */ MX50_PAD_UART1_CTS__GPIO_6_8, + + /* SGTL_AMP_SHDN */ + MX50_PAD_UART3_RXD__GPIO_6_15, + /* Keypad */ MX50_PAD_KEY_COL0__KEY_COL0, MX50_PAD_KEY_ROW0__KEY_ROW0, @@ -999,7 +1004,7 @@ static struct mxc_mmc_platform_data mmc3_data = { static int mxc_sgtl5000_amp_enable(int enable) { -/* TO DO */ + gpio_set_value(SGTL_AMP_SHDN, !enable); return 0; } @@ -1279,6 +1284,9 @@ static void __init mx50_rdp_io_init(void) gpio_request(SGTL_OSCEN, "sgtl5000-osc-en"); gpio_direction_output(SGTL_OSCEN, 1); + gpio_request(SGTL_AMP_SHDN, "sgtl5000-amp-shdn"); + gpio_direction_output(SGTL_AMP_SHDN, 1); + gpio_request(FEC_EN, "fec-en"); gpio_direction_output(FEC_EN, 0); -- cgit v1.2.3