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drivers: usb: sam: Update to use clock control

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This update Atmel SAM usbhs driver to use clock control driver.

Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
This commit is contained in:
Gerson Fernando Budke 2023-03-07 20:12:54 +01:00 committed by Marti Bolivar
parent 033c7eddec
commit 5522e65581
5 changed files with 15 additions and 13 deletions
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14
drivers/usb/device/usb_dc_sam_usbhs.c
View file

@ -7,6 +7,7 @@
#define DT_DRV_COMPAT atmel_sam_usbhs
#include <zephyr/usb/usb_device.h>
#include <zephyr/drivers/clock_control/atmel_sam_pmc.h>
#include <zephyr/irq.h>
#include <zephyr/kernel.h>
#include <soc.h>
@ -309,10 +310,12 @@ static void usb_dc_isr(void)
/* Attach USB for device connection */
int usb_dc_attach(void)
{
const struct atmel_sam_pmc_config clock_cfg = SAM_DT_INST_CLOCK_PMC_CFG(0);
uint32_t regval;
/* Start the peripheral clock */
soc_pmc_peripheral_enable(DT_INST_PROP(0, peripheral_id));
/* Enable USBHS clock in PMC */
(void)clock_control_on(SAM_DT_PMC_CONTROLLER,
(clock_control_subsys_t *)&clock_cfg);
/* Enable the USB controller in device mode with the clock frozen */
USBHS->USBHS_CTRL = USBHS_CTRL_UIMOD | USBHS_CTRL_USBE |
@ -359,6 +362,8 @@ int usb_dc_attach(void)
/* Detach the USB device */
int usb_dc_detach(void)
{
const struct atmel_sam_pmc_config clock_cfg = SAM_DT_INST_CLOCK_PMC_CFG(0);
/* Detach the device */
USBHS->USBHS_DEVCTRL |= USBHS_DEVCTRL_DETACH;
@ -368,8 +373,9 @@ int usb_dc_detach(void)
/* Disable the USB controller and freeze the clock */
USBHS->USBHS_CTRL = USBHS_CTRL_UIMOD | USBHS_CTRL_FRZCLK;
/* Disable the peripheral clock */
soc_pmc_peripheral_enable(DT_INST_PROP(0, peripheral_id));
/* Disable USBHS clock in PMC */
(void)clock_control_off(SAM_DT_PMC_CONTROLLER,
(clock_control_subsys_t *)&clock_cfg);
/* Disable interrupt */
irq_disable(DT_INST_IRQN(0));

2
dts/arm/atmel/sam4l.dtsi
View file

@ -166,7 +166,7 @@
interrupt-names = "usbc";
maximum-speed = "full-speed";
num-bidir-endpoints = <8>;
peripheral-id = <101>;
clocks = <&pmc PMC_TYPE_PERIPHERAL 101>;
status = "disabled";
};

2
dts/arm/atmel/same70.dtsi
View file

@ -314,7 +314,7 @@
interrupt-names = "usbhs";
maximum-speed = "high-speed";
num-bidir-endpoints = <10>;
peripheral-id = <34>;
clocks = <&pmc PMC_TYPE_PERIPHERAL 34>;
status = "disabled";
};

6
dts/bindings/usb/atmel,sam-usbc.yaml
View file

@ -1,5 +1,5 @@
# Copyright (c) 2018 Aurelien Jarno
# Copyright (c) 2020 Gerson Fernando Budke <nandojve@gmail.com>
# Copyright (c) 2020*2023 Gerson Fernando Budke <nandojve@gmail.com>
# SPDX-License-Identifier: Apache-2.0
description: |
@ -18,7 +18,5 @@ properties:
interrupts:
required: true
peripheral-id:
type: int
clocks:
required: true
description: peripheral ID

4
dts/bindings/usb/atmel,sam-usbhs.yaml
View file

@ -17,7 +17,5 @@ properties:
interrupts:
required: true
peripheral-id:
type: int
clocks:
required: true
description: peripheral ID