openwrt/target/linux/ar71xx/patches-4.4/930-chipidea-pullup.patch
Kevin Darbyshire-Bryant 088e28772c kernel: update kernel 4.4 to version 4.4.69
Refresh patches. A number of patches have landed upstream & hence are no
longer required locally:

062-[1-6]-MIPS-* series
042-0004-mtd-bcm47xxpart-fix-parsing-first-block

Reintroduced lantiq/patches-4.4/0050-MIPS-Lantiq-Fix-cascaded-IRQ-setup
as it was incorrectly included upstream thus dropped from LEDE.
As it has now been reverted upstream it needs to be included again for
LEDE.

Run tested ar71xx Archer C7 v2 and lantiq.

Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
[update from 4.4.68 to 4.4.69]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-05-21 21:48:16 +02:00

73 lines
2.2 KiB
Diff

--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -199,6 +199,7 @@ struct hw_bank {
* @in_lpm: if the core in low power mode
* @wakeup_int: if wakeup interrupt occur
* @rev: The revision number for controller
+ * @dp_always_pullup: keep dp always pullup at device mode
*/
struct ci_hdrc {
struct device *dev;
@@ -248,6 +249,7 @@ struct ci_hdrc {
bool in_lpm;
bool wakeup_int;
enum ci_revision rev;
+ bool dp_always_pullup;
};
static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci)
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -851,7 +851,7 @@ static inline void ci_role_destroy(struc
{
ci_hdrc_gadget_destroy(ci);
ci_hdrc_host_destroy(ci);
- if (ci->is_otg)
+ if (!ci->dp_always_pullup && ci->roles[CI_ROLE_GADGET])
ci_hdrc_otg_destroy(ci);
}
@@ -902,6 +902,9 @@ static int ci_hdrc_probe(struct platform
ci->supports_runtime_pm = !!(ci->platdata->flags &
CI_HDRC_SUPPORTS_RUNTIME_PM);
+ ci->dp_always_pullup = !!(ci->platdata->flags &
+ CI_HDRC_DP_ALWAYS_PULLUP);
+
ret = hw_device_init(ci, base);
if (ret < 0) {
dev_err(dev, "can't initialize hardware\n");
@@ -967,7 +970,7 @@ static int ci_hdrc_probe(struct platform
goto deinit_phy;
}
- if (ci->is_otg && ci->roles[CI_ROLE_GADGET]) {
+ if (!ci->dp_always_pullup && ci->roles[CI_ROLE_GADGET]) {
ret = ci_hdrc_otg_init(ci);
if (ret) {
dev_err(dev, "init otg fails, ret = %d\n", ret);
--- a/drivers/usb/chipidea/otg.c
+++ b/drivers/usb/chipidea/otg.c
@@ -131,8 +131,10 @@ enum ci_role ci_otg_role(struct ci_hdrc
void ci_handle_vbus_change(struct ci_hdrc *ci)
{
- if (!ci->is_otg)
+ if (ci->dp_always_pullup) {
+ usb_gadget_vbus_connect(&ci->gadget);
return;
+ }
if (hw_read_otgsc(ci, OTGSC_BSV))
usb_gadget_vbus_connect(&ci->gadget);
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -57,6 +57,7 @@ struct ci_hdrc_platform_data {
#define CI_HDRC_OVERRIDE_AHB_BURST BIT(9)
#define CI_HDRC_OVERRIDE_TX_BURST BIT(10)
#define CI_HDRC_OVERRIDE_RX_BURST BIT(11)
+#define CI_HDRC_DP_ALWAYS_PULLUP BIT(12)
enum usb_dr_mode dr_mode;
#define CI_HDRC_CONTROLLER_RESET_EVENT 0
#define CI_HDRC_CONTROLLER_STOPPED_EVENT 1