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disp: msm: dp: inform multi-func support to usb driver

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The usb controller driver does not know if DP is
supported / connected and whether it is operating in
concurrent mode. So, whenever there is a ucsi role switch
call to the usb controller driver, it will reset the usb
phy irrespective of DP connection.

The phy reset while DP driver is still processing cable
connect or disconnect will cause aux timeout or NOC errors.
This change will inform the usb controller driver about the
multi_func mode support to convey how many lanes DP will
be using.

Change-Id: I9e96ed399e879820ddd238cf0fbed7069f1de60d
Signed-off-by: Sankeerth Billakanti <sbillaka@codeaurora.org>
This commit is contained in:
Sankeerth Billakanti 2020-09-23 12:53:33 +05:30 • committed by Gerrit - the friendly Code Review server
commit e3f86bb93a
1 changed files with 7 additions and 7 deletions
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14
msm/dp/dp_altmode.c
View file

@ -40,7 +40,8 @@ enum dp_altmode_pin_assignment {
DPAM_HPD_F,
};
static int dp_altmode_release_ss_lanes(struct dp_altmode_private *altmode)
static int dp_altmode_release_ss_lanes(struct dp_altmode_private *altmode,
bool multi_func)
{
int rc;
struct device_node *np;
@ -69,7 +70,7 @@ static int dp_altmode_release_ss_lanes(struct dp_altmode_private *altmode)
}
while (timeout) {
rc = dwc3_msm_release_ss_lane(&usb_pdev->dev);
rc = dwc3_msm_release_ss_lane(&usb_pdev->dev, multi_func);
if (rc != -EBUSY)
break;
@ -178,11 +179,10 @@ static int dp_altmode_notify(void *priv, void *data, size_t len)
altmode->dp_altmode.base.orientation = orientation;
if (!altmode->dp_altmode.base.multi_func) {
rc = dp_altmode_release_ss_lanes(altmode);
if (rc)
goto ack;
}
rc = dp_altmode_release_ss_lanes(altmode,
altmode->dp_altmode.base.multi_func);
if (rc)
goto ack;
if (altmode->dp_cb && altmode->dp_cb->configure)
altmode->dp_cb->configure(altmode->dev);