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authorBryan O'Donoghue <bryan.odonoghue@linaro.org>2020-05-07 08:49:18 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-05-07 08:46:35 +0200
commit91edf63d5022bd0464788ffb4acc3d5febbaf81d (patch)
tree02e69f34df4b6de50e566fa09b8603420fc679f5 /drivers/usb
parent084d7e78467534eedaf0d6c72086a6817023d839 (diff)
downloadlinux-91edf63d5022bd0464788ffb4acc3d5febbaf81d.tar.bz2
usb: chipidea: msm: Ensure proper controller reset using role switch API
Currently we check to make sure there is no error state on the extcon handle for VBUS when writing to the HS_PHY_GENCONFIG_2 register. When using the USB role-switch API we still need to write to this register absent an extcon handle. This patch makes the appropriate update to ensure the write happens if role-switching is true. Fixes: 05559f10ed79 ("usb: chipidea: add role switch class support") Cc: stable <stable@vger.kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by: Peter Chen <peter.chen@nxp.com> Link: https://lore.kernel.org/r/20200507004918.25975-2-peter.chen@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/chipidea/ci_hdrc_msm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
index af648ba6544d..46105457e1ca 100644
--- a/drivers/usb/chipidea/ci_hdrc_msm.c
+++ b/drivers/usb/chipidea/ci_hdrc_msm.c
@@ -114,7 +114,7 @@ static int ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event)
hw_write_id_reg(ci, HS_PHY_GENCONFIG_2,
HS_PHY_ULPI_TX_PKT_EN_CLR_FIX, 0);
- if (!IS_ERR(ci->platdata->vbus_extcon.edev)) {
+ if (!IS_ERR(ci->platdata->vbus_extcon.edev) || ci->role_switch) {
hw_write_id_reg(ci, HS_PHY_GENCONFIG_2,
HS_PHY_SESS_VLD_CTRL_EN,
HS_PHY_SESS_VLD_CTRL_EN);