sunxi: musb: Add id pin support

When in host mode check if there is a host cable inserted into the otg
port by checking the id pin. If there is no host cable return an error to
make usb_lowlevel_init() exit early, rather then waiting for 1 second
for a device which will never show up.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

diff --git a/configs/Ippo_q8h_v1_2_a33_1024x600_defconfig b/configs/Ippo_q8h_v1_2_a33_1024x600_defconfig
index 012a25b..fda7683 100644 (file)
--- a/configs/Ippo_q8h_v1_2_a33_1024x600_defconfig
+++ b/configs/Ippo_q8h_v1_2_a33_1024x600_defconfig
@@ -5,6 +5,7 @@ CONFIG_DRAM_CLK=480
 CONFIG_DRAM_ZQ=15291
 CONFIG_USB0_VBUS_PIN="AXP0-VBUS-ENABLE"
 CONFIG_USB0_VBUS_DET="AXP0-VBUS-DETECT"
+CONFIG_USB0_ID_DET="PH8"
 CONFIG_AXP_GPIO=y
 CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:51000,le:159,ri:160,up:22,lo:12,hs:1,vs:1,sync:3,vmode:0"
 CONFIG_VIDEO_LCD_DCLK_PHASE=0

diff --git a/configs/Ippo_q8h_v1_2_defconfig b/configs/Ippo_q8h_v1_2_defconfig
index 783467b..490cbe2 100644 (file)
--- a/configs/Ippo_q8h_v1_2_defconfig
+++ b/configs/Ippo_q8h_v1_2_defconfig
@@ -5,6 +5,7 @@ CONFIG_DRAM_CLK=432
 CONFIG_DRAM_ZQ=63306
 CONFIG_USB0_VBUS_PIN="AXP0-VBUS-ENABLE"
 CONFIG_USB0_VBUS_DET="AXP0-VBUS-DETECT"
+CONFIG_USB0_ID_DET="PH8"
 CONFIG_AXP_GPIO=y
 CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:87,ri:167,up:31,lo:13,hs:1,vs:1,sync:3,vmode:0"
 CONFIG_VIDEO_LCD_DCLK_PHASE=0

diff --git a/configs/Ippo_q8h_v5_defconfig b/configs/Ippo_q8h_v5_defconfig
index 29e3c89..aa1eb69 100644 (file)
--- a/configs/Ippo_q8h_v5_defconfig
+++ b/configs/Ippo_q8h_v5_defconfig
@@ -5,6 +5,7 @@ CONFIG_DRAM_CLK=480
 CONFIG_DRAM_ZQ=63351
 CONFIG_USB0_VBUS_PIN="AXP0-VBUS-ENABLE"
 CONFIG_USB0_VBUS_DET="AXP0-VBUS-DETECT"
+CONFIG_USB0_ID_DET="PH8"
 CONFIG_AXP_GPIO=y
 CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:87,ri:168,up:31,lo:13,hs:1,vs:1,sync:3,vmode:0"
 CONFIG_VIDEO_LCD_DCLK_PHASE=0

diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
index ee018c7..cafb480 100644 (file)
--- a/drivers/usb/musb-new/sunxi.c
+++ b/drivers/usb/musb-new/sunxi.c
@@ -217,6 +217,11 @@ static int sunxi_musb_enable(struct musb *musb)
                        printf("A charger is plugged into the OTG: ");
                        return -ENODEV;
                }
+               ret = sunxi_usb_phy_id_detect(0);
+               if (ret == 1) {
+                       printf("No host cable detected: ");
+                       return -ENODEV;
+               }
                sunxi_usb_phy_power_on(0); /* port power on */
        }