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From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
To: Felipe Balbi <balbi@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Thinh.Nguyen@synopsys.com, linux-usb@vger.kernel.org
Cc: John Youn <John.Youn@synopsys.com>
Subject: [PATCH 1/2] usb: dwc3: Capture new capability register GHWPARAMS9
Date: Thu, 22 Apr 2021 16:51:36 -0700	[thread overview]
Message-ID: <f76cc4a9c8c4ab325f5babe03c57b039166360b0.1619134559.git.Thinh.Nguyen@synopsys.com> (raw)
In-Reply-To: <cover.1619134559.git.Thinh.Nguyen@synopsys.com>

DWC_usb32 introduces a new HW capability register GHWPARAMS9. Capture
this in the dwc->hwparams.hwparams9 field.

Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
---
 drivers/usb/dwc3/core.c | 3 +++
 drivers/usb/dwc3/core.h | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 2f118ad43571..b6e53d8212cd 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -570,6 +570,9 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc)
 	parms->hwparams6 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS6);
 	parms->hwparams7 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS7);
 	parms->hwparams8 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS8);
+
+	if (DWC3_IP_IS(DWC32))
+		parms->hwparams9 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS9);
 }
 
 static int dwc3_core_ulpi_init(struct dwc3 *dwc)
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 7e3afa5378e8..b678200cc51e 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -143,6 +143,7 @@
 #define DWC3_GHWPARAMS8		0xc600
 #define DWC3_GUCTL3		0xc60c
 #define DWC3_GFLADJ		0xc630
+#define DWC3_GHWPARAMS9		0xc680
 
 /* Device Registers */
 #define DWC3_DCFG		0xc700
@@ -857,6 +858,7 @@ struct dwc3_hwparams {
 	u32	hwparams6;
 	u32	hwparams7;
 	u32	hwparams8;
+	u32	hwparams9;
 };
 
 /* HWPARAMS0 */
-- 
2.28.0


  reply	other threads:[~2021-04-22 23:51 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-22 23:51 [PATCH 0/2] usb: dwc3: gadget: Check new capability Thinh Nguyen
2021-04-22 23:51 ` Thinh Nguyen [this message]
2021-04-23  6:08   ` [PATCH 1/2] usb: dwc3: Capture new capability register GHWPARAMS9 Felipe Balbi
2021-04-22 23:51 ` [PATCH 2/2] usb: dwc3: gadget: Handle DEV_TXF_FLUSH_BYPASS capability Thinh Nguyen
2021-04-23  6:09   ` Felipe Balbi
2021-04-26 21:27     ` Thinh Nguyen

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