On Thu, Jul 07, 2016 at 03:20:57PM -0700, Stephen Boyd wrote:
quoted hunk ↗ jump to hunk
The ULPI phy on qcom platforms needs to be initialized and
powered on after a USB reset and before we toggle the run/stop
bit. Otherwise, the phy locks up and doesn't work properly.
Therefore, add a flag to skip any phy power management in the
core layer, leaving it up to the glue driver to manage.
Cc: Peter Chen <redacted>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <redacted>
---
drivers/usb/chipidea/core.c | 6 ++++++
include/linux/usb/chipidea.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 01390e02ee53..532085a096d9 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -361,6 +361,9 @@ static int _ci_usb_phy_init(struct ci_hdrc *ci)
*/
static void ci_usb_phy_exit(struct ci_hdrc *ci)
{
+ if (ci->platdata->flags & CI_HDRC_OVERRIDE_PHY_CONTROL)
+ return;
+
if (ci->phy) {
phy_power_off(ci->phy);
phy_exit(ci->phy);@@ -379,6 +382,9 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
{
int ret;
+ if (ci->platdata->flags & CI_HDRC_OVERRIDE_PHY_CONTROL)
+ return 0;
+
How you handle the code for PHY getting at probe?
--
Best Regards,
Peter Chen