diff options
| author | Hauke Mehrtens <hauke@hauke-m.de> | 2017-10-03 18:02:59 +0200 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2017-10-11 22:32:39 +0200 |
| commit | 7bbf4117c6fe4b764d9d7c62fb2bcf6dd93bff2c (patch) | |
| tree | e42a4555f9845f78fb9baf7102da8d3d45adfacc /target/linux/ar71xx/patches-4.9/930-chipidea-pullup.patch | |
| parent | 2909a4b78e2bce5f6b9c35361866d5e9477a1bdc (diff) | |
| download | upstream-7bbf4117c6fe4b764d9d7c62fb2bcf6dd93bff2c.tar.gz upstream-7bbf4117c6fe4b764d9d7c62fb2bcf6dd93bff2c.tar.bz2 upstream-7bbf4117c6fe4b764d9d7c62fb2bcf6dd93bff2c.zip | |
ar71xx: Add kernel 4.9 support
This add support for kernel 4.9 to the ar71xx target.
It was compile tested with the generic, NAND and mikrotik subtarget.
Multiple members of the community tested it on their boards and did not
report any major problem so far.
Especially the NAND part received some changes to adapt to the new
kernel APIs. The serial driver hack used for the Arduino Yun was not
ported because the kernel changed there a lot.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Diffstat (limited to 'target/linux/ar71xx/patches-4.9/930-chipidea-pullup.patch')
| -rw-r--r-- | target/linux/ar71xx/patches-4.9/930-chipidea-pullup.patch | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-4.9/930-chipidea-pullup.patch b/target/linux/ar71xx/patches-4.9/930-chipidea-pullup.patch new file mode 100644 index 0000000000..ce31595d96 --- /dev/null +++ b/target/linux/ar71xx/patches-4.9/930-chipidea-pullup.patch @@ -0,0 +1,72 @@ +--- 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 +@@ -839,7 +839,7 @@ 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); + } + +@@ -890,6 +890,9 @@ 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"); +@@ -955,7 +958,7 @@ 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) && !ci->vbus_active) + 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 |