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authorAlan Tull <alan.tull@freescale.com>2010-10-27 10:44:34 -0500
committerAlan Tull <alan.tull@freescale.com>2010-10-28 16:26:33 -0500
commit9c664c3b9bcfbb302adbee62fff8eb6635ccbefb (patch)
tree7efe2fb2a82e415478571acaa2847ed720a4fbac
parent8fe652143ad912f852da7bf78c766972c6d799c9 (diff)
ENGR00133149 MX50: external speaker amp shutdownrel_imx_2.6.35_10.10.01
Use gpio_6_15 to shutdown external speaker amp when not in use. Signed-off-by: Alan Tull <alan.tull@freescale.com>
-rw-r--r--arch/arm/mach-mx5/mx50_rdp.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm/mach-mx5/mx50_rdp.c b/arch/arm/mach-mx5/mx50_rdp.c
index 5d87d04..377de3c 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);