Re: [PATCH 06/13] usb: xhci-mtk: support ip-sleep wakeup for MT8183

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Hello!

On 22.03.2021 6:13, Chunfeng Yun wrote:

Add support ip-sleep wakeup for MT8183, it's similar to MT8173,
             ^ for

and it's also a specific one, but not follow IPM rule.

   Following?

Due to the index 2 already used by many DTS, it's better to keep
it unchanged for backward compatible, treat specific ones without

   Compatibility.

following IPM rule as revision 1.x, meanwhile reserve 3~10 for
later revision that follows the IPM rule.

Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
---
  drivers/usb/host/xhci-mtk.c | 13 +++++++++++++
  1 file changed, 13 insertions(+)

diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 09f2ddbfe8b9..8ba1f914cb75 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -57,12 +57,19 @@
  #define CTRL_U2_FORCE_PLL_STB	BIT(28)
/* usb remote wakeup registers in syscon */
+
  /* mt8173 etc */
  #define PERI_WK_CTRL1	0x4
  #define WC1_IS_C(x)	(((x) & 0xf) << 26)  /* cycle debounce */
  #define WC1_IS_EN	BIT(25)
  #define WC1_IS_P	BIT(6)  /* polarity for ip sleep */
+/* mt8183 */
+#define PERI_WK_CTRL0	0x0
+#define WC0_IS_C(x)	(((x) & 0xf) << 28)  /* cycle debounce */
+#define WC0_IS_P	BIT(12)	/* polarity */
+#define WC0_IS_EN	BIT(6)
+
  /* mt2712 etc */
  #define PERI_SSUSB_SPM_CTRL	0x0
  #define SSC_IP_SLEEP_EN	BIT(4)
@@ -71,6 +78,7 @@
  enum ssusb_uwk_vers {
  	SSUSB_UWK_V1 = 1,
  	SSUSB_UWK_V2,
+	SSUSB_UWK_V11 = 11,	/* specific revision 1.1 */

   SSUSB_UWK_V1_1, maybe?

[...]

MBR, Sergei



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