rk29_phone:disable pull down resistor of uart1

diff --git a/arch/arm/mach-rk29/board-rk29-a22.c b/arch/arm/mach-rk29/board-rk29-a22.c
old mode 100644 (file)
new mode 100755 (executable)
index 0da7ee9..599ce58
--- a/arch/arm/mach-rk29/board-rk29-a22.c
+++ b/arch/arm/mach-rk29/board-rk29-a22.c
@@ -2487,7 +2487,25 @@ struct platform_device rk29_device_vibrator ={
 
 static void __init rk29_board_iomux_init(void)
 {
-               int err;
+       int err;
+
+#ifdef CONFIG_UART1_RK29
+       //disable uart1 pull down
+       rk29_mux_api_set(GPIO2A5_UART1SOUT_NAME, GPIO2L_GPIO2A5);                       
+       rk29_mux_api_set(GPIO2A4_UART1SIN_NAME, GPIO2L_GPIO2A4);                
+
+       gpio_request(RK29_PIN2_PA5, NULL);
+       gpio_request(RK29_PIN2_PA4, NULL);
+
+       gpio_pull_updown(RK29_PIN2_PA5, PullDisable);
+       gpio_pull_updown(RK29_PIN2_PA4, PullDisable);
+
+       rk29_mux_api_set(GPIO2A5_UART1SOUT_NAME, GPIO2L_UART1_SOUT);                    
+       rk29_mux_api_set(GPIO2A4_UART1SIN_NAME, GPIO2L_UART1_SIN); 
+
+       gpio_free(RK29_PIN2_PA5);
+       gpio_free(RK29_PIN2_PA4);
+#endif
 
        #if CONFIG_ANDROID_TIMED_GPIO
        rk29_mux_api_set(GPIO1B5_PWM0_NAME, GPIO1L_GPIO1B5);//for timed gpio

diff --git a/arch/arm/mach-rk29/board-rk29-phonesdk.c b/arch/arm/mach-rk29/board-rk29-phonesdk.c
index 6e2b66b6d183e7e241f58b0fb3a8ced54fc0d617..47e0c7603bcbba5309f254f3c5aed4a996ea507c 100755 (executable)
--- a/arch/arm/mach-rk29/board-rk29-phonesdk.c
+++ b/arch/arm/mach-rk29/board-rk29-phonesdk.c
@@ -2454,6 +2454,24 @@ static struct platform_device gpio_wave_device = {
 static void __init rk29_board_iomux_init(void)
 {
        int err;
+
+#ifdef CONFIG_UART1_RK29
+       //disable uart1 pull down
+       rk29_mux_api_set(GPIO2A5_UART1SOUT_NAME, GPIO2L_GPIO2A5);                       
+       rk29_mux_api_set(GPIO2A4_UART1SIN_NAME, GPIO2L_GPIO2A4);                
+
+       gpio_request(RK29_PIN2_PA5, NULL);
+       gpio_request(RK29_PIN2_PA4, NULL);
+
+       gpio_pull_updown(RK29_PIN2_PA5, PullDisable);
+       gpio_pull_updown(RK29_PIN2_PA4, PullDisable);
+
+       rk29_mux_api_set(GPIO2A5_UART1SOUT_NAME, GPIO2L_UART1_SOUT);                    
+       rk29_mux_api_set(GPIO2A4_UART1SIN_NAME, GPIO2L_UART1_SIN); 
+
+       gpio_free(RK29_PIN2_PA5);
+       gpio_free(RK29_PIN2_PA4);
+#endif
        #ifdef CONFIG_RK29_PWM_REGULATOR
        rk29_mux_api_set(REGULATOR_PWM_MUX_NAME,REGULATOR_PWM_MUX_MODE);
        #endif