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| author | Li Jun <b47624@freescale.com> | 2015-02-11 12:45:01 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-18 16:19:12 +0100 |
| commit | 6adb9b7b5fb64be3c3e4d57578ea1446da91a8f9 (patch) | |
| tree | 42736461049b926d4315d1e66c165f3fbe11dd12 /drivers/usb/chipidea/ci_hdrc_imx.c | |
| parent | ba1aff67f99a219b0c56bf7f10cea2c41cbd0583 (diff) | |
| download | lwn-6adb9b7b5fb64be3c3e4d57578ea1446da91a8f9.tar.gz lwn-6adb9b7b5fb64be3c3e4d57578ea1446da91a8f9.zip | |
usb: chipidea: add a flag for turn on vbus early for host
Some usb PHYs need power supply from vbus to make it work, eg mxs-phy, if
there is no vbus, USB PHY will not in correct state when the controller starts
to work, for host, this requires vbus should be turned on before setting port
power(PP) of ehci, to work with this kind of USB PHY design, this patch adds
a flag CI_HDRC_TURN_VBUS_EARLY_ON, can be checked by host driver to turn on
vbus while start host.
Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/ci_hdrc_imx.c')
| -rw-r--r-- | drivers/usb/chipidea/ci_hdrc_imx.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index f7f9fd45c9ea..389f0e034259 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -32,19 +32,23 @@ static const struct ci_hdrc_imx_platform_flag imx27_usb_data = { }; static const struct ci_hdrc_imx_platform_flag imx28_usb_data = { - .flags = CI_HDRC_IMX28_WRITE_FIX, + .flags = CI_HDRC_IMX28_WRITE_FIX | + CI_HDRC_TURN_VBUS_EARLY_ON, }; static const struct ci_hdrc_imx_platform_flag imx6q_usb_data = { - .flags = CI_HDRC_SUPPORTS_RUNTIME_PM, + .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | + CI_HDRC_TURN_VBUS_EARLY_ON, }; static const struct ci_hdrc_imx_platform_flag imx6sl_usb_data = { - .flags = CI_HDRC_SUPPORTS_RUNTIME_PM, + .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | + CI_HDRC_TURN_VBUS_EARLY_ON, }; static const struct ci_hdrc_imx_platform_flag imx6sx_usb_data = { - .flags = CI_HDRC_SUPPORTS_RUNTIME_PM, + .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | + CI_HDRC_TURN_VBUS_EARLY_ON, }; static const struct of_device_id ci_hdrc_imx_dt_ids[] = { |