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sunxi: musb: Add id pin support

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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>
This commit is contained in:
Hans de Goede 2015-06-14 17:40:37 +02:00
parent b41972e7d1
commit 71cbe0d681
4 changed files with 8 additions and 0 deletions
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1
configs/Ippo_q8h_v1_2_a33_1024x600_defconfig
View file

@ -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

1
configs/Ippo_q8h_v1_2_defconfig
View file

@ -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

1
configs/Ippo_q8h_v5_defconfig
View file

@ -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

5
drivers/usb/musb-new/sunxi.c
View file

@ -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 */
}