linux-kernel - [PATCH 2/3] usb: dwc2: stm32mp15: set otg

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Date:   Wed, 15 Sep 2021 09:54:32 +0200
From:   Fabrice Gasnier <fabrice.gasnier@...s.st.com>
To:     <hminas@...opsys.com>, <gregkh@...uxfoundation.org>,
        <robh+dt@...nel.org>, <alexandre.torgue@...s.st.com>
CC:     <balbi@...nel.org>, <linux-usb@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <devicetree@...r.kernel.org>, <amelie.delaunay@...s.st.com>,
        <fabrice.gasnier@...s.st.com>
Subject: [PATCH 2/3] usb: dwc2: stm32mp15: set otg_rev

STM32MP15 complies with the OTG 2.0. Set OTG revision accordingly. It is
useful for the of_usb_update_otg_caps() routine to check and update
otg_rev to the lower value between DT and provided params.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
---
 drivers/usb/dwc2/params.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index f8ab211..fe2e88f 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -170,6 +170,7 @@ static void dwc2_set_stm32mp15_fsotg_params(struct dwc2_hsotg *hsotg)
 	struct dwc2_core_params *p = &hsotg->params;
 
 	p->otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE;
+	p->otg_rev = 0x200;
 	p->speed = DWC2_SPEED_PARAM_FULL;
 	p->host_rx_fifo_size = 128;
 	p->host_nperio_tx_fifo_size = 96;
@@ -190,6 +191,7 @@ static void dwc2_set_stm32mp15_hsotg_params(struct dwc2_hsotg *hsotg)
 	struct dwc2_core_params *p = &hsotg->params;
 
 	p->otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE;
+	p->otg_rev = 0x200;
 	p->activate_stm_id_vb_detection = !device_property_read_bool(hsotg->dev, "usb-role-switch");
 	p->host_rx_fifo_size = 440;
 	p->host_nperio_tx_fifo_size = 256;
-- 
2.7.4