On some platforms, there are two xHCI IPs, but the old way of
usb wakeup doesn't support it, so use the new APIs of mtu_wakeup
to support it.
Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
---
drivers/usb/host/xhci-mtk.c | 39 +++++++++++++++++++++++----------------
drivers/usb/host/xhci-mtk.h | 2 ++
2 files changed, 25 insertions(+), 16 deletions(-)
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index b62a1d2..3176a10 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -19,6 +19,7 @@
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
+#include <linux/soc/mediatek/usb-wakeup.h>
#include "xhci.h"
#include "xhci-mtk.h"
@@ -366,7 +367,9 @@ static void usb_wakeup_line_state_dis(struct xhci_hcd_mtk *mtk)
static void usb_wakeup_enable(struct xhci_hcd_mtk *mtk)
{
- if (mtk->wakeup_src == SSUSB_WK_IP_SLEEP)
+ if (mtk->wakeup)
+ mtu_wakeup_enable(mtk->uwk);
+ else if (mtk->wakeup_src == SSUSB_WK_IP_SLEEP)
usb_wakeup_ip_sleep_en(mtk);
else if (mtk->wakeup_src == SSUSB_WK_LINE_STATE)
usb_wakeup_line_state_en(mtk);
@@ -374,7 +377,9 @@ static void usb_wakeup_enable(struct xhci_hcd_mtk *mtk)
static void usb_wakeup_disable(struct xhci_hcd_mtk *mtk)
{
- if (mtk->wakeup_src == SSUSB_WK_IP_SLEEP)
+ if (mtk->wakeup)
+ mtu_wakeup_disable(mtk->uwk);
+ else if (mtk->wakeup_src == SSUSB_WK_IP_SLEEP)
usb_wakeup_ip_sleep_dis(mtk);
else if (mtk->wakeup_src == SSUSB_WK_LINE_STATE)
usb_wakeup_line_state_dis(mtk);
@@ -383,24 +388,26 @@ static void usb_wakeup_disable(struct xhci_hcd_mtk *mtk)
static int usb_wakeup_of_property_parse(struct xhci_hcd_mtk *mtk,
struct device_node *dn)
{
- struct device *dev = mtk->dev;
+ /* try the new way first */
+ mtk->wakeup = of_property_read_bool(dn, "wakeup-source");
+ if (mtk->wakeup) {
+ mtk->uwk = devm_of_uwk_get_by_index(mtk->dev, dn, 0);
+ if (IS_ERR(mtk->uwk))
+ dev_err(mtk->dev, "fail to get uwk\n");
+
+ return PTR_ERR_OR_ZERO(mtk->uwk);
+ }
- /*
- * wakeup function is optional, so it is not an error if this property
- * does not exist, and in such case, no need to get relative
- * properties anymore.
- */
+ /* wakeup function is optional (deprecated, use the new way instead) */
of_property_read_u32(dn, "mediatek,wakeup-src", &mtk->wakeup_src);
- if (!mtk->wakeup_src)
- return 0;
-
- mtk->pericfg = syscon_regmap_lookup_by_phandle(dn,
+ if (mtk->wakeup_src) {
+ mtk->pericfg = syscon_regmap_lookup_by_phandle(dn,
"mediatek,syscon-wakeup");
- if (IS_ERR(mtk->pericfg)) {
- dev_err(dev, "fail to get pericfg regs\n");
- return PTR_ERR(mtk->pericfg);
+ if (IS_ERR(mtk->pericfg)) {
+ dev_err(mtk->dev, "fail to get pericfg regs\n");
+ return PTR_ERR(mtk->pericfg);
+ }
}
-
return 0;
}
diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h
index 6b74ce5..95bd6ca 100644
--- a/drivers/usb/host/xhci-mtk.h
+++ b/drivers/usb/host/xhci-mtk.h
@@ -124,6 +124,8 @@ struct xhci_hcd_mtk {
int num_phys;
int wakeup_src;
bool lpm_support;
+ struct mtu_wakeup *uwk;
+ bool wakeup;
};
static inline struct xhci_hcd_mtk *hcd_to_mtk(struct usb_hcd *hcd)
--
1.9.1
--
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