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From: Dinh Nguyen <dinguyen@kernel.org>
To: hminas@synopsys.com
Cc: dinguyen@kernel.org, gregkh@linuxfoundation.org,
	robh+dt@kernel.org, linux-usb@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: [PATCH 2/3] usb: dwc2: Add platform specific data for Intel's Agilex
Date: Tue, 25 Jan 2022 10:18:20 -0600	[thread overview]
Message-ID: <20220125161821.1951906-2-dinguyen@kernel.org> (raw)
In-Reply-To: <20220125161821.1951906-1-dinguyen@kernel.org>

The DWC2 IP on the Agilex platform does not support clock-gating.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
---
 drivers/usb/dwc2/params.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index d300ae3d9274..1306f4ec788d 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -82,6 +82,14 @@ static void dwc2_set_s3c6400_params(struct dwc2_hsotg *hsotg)
 	p->phy_utmi_width = 8;
 }
 
+static void dwc2_set_socfpga_agilex_params(struct dwc2_hsotg *hsotg)
+{
+	struct dwc2_core_params *p = &hsotg->params;
+
+	p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
+	p->no_clock_gating = true;
+}
+
 static void dwc2_set_rk_params(struct dwc2_hsotg *hsotg)
 {
 	struct dwc2_core_params *p = &hsotg->params;
@@ -239,6 +247,8 @@ const struct of_device_id dwc2_of_match_table[] = {
 	  .data = dwc2_set_stm32mp15_fsotg_params },
 	{ .compatible = "st,stm32mp15-hsotg",
 	  .data = dwc2_set_stm32mp15_hsotg_params },
+	{ .compatible = "intel,socfpga-agilex-hsotg",
+	  .data = dwc2_set_socfpga_agilex_params },
 	{},
 };
 MODULE_DEVICE_TABLE(of, dwc2_of_match_table);
-- 
2.25.1


  reply	other threads:[~2022-01-25 16:21 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-25 16:18 [PATCH 1/3] dt-bindings: usb: dwc2: add compatible "intel,socfpga-agilex-hsotg" Dinh Nguyen
2022-01-25 16:18 ` Dinh Nguyen [this message]
2022-02-01  5:15   ` [PATCH 2/3] usb: dwc2: Add platform specific data for Intel's Agilex Minas Harutyunyan
2022-01-25 16:18 ` [PATCH 3/3] arm64: dts: agilex: use the compatible "intel,socfpga-agilex-hsotg" Dinh Nguyen
2022-03-18 14:34   ` Krzysztof Kozlowski
2022-02-09  3:19 ` [PATCH 1/3] dt-bindings: usb: dwc2: add " Rob Herring
2022-03-18 14:40 ` Krzysztof Kozlowski

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