forked from OERV-BSP/u-boot
e210e38a90
Add a new regulator driver to control the USB VBUS supply on the Renesas RZ/G2L and related SoCs. Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2024 Renesas Electronics Corporation
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*/
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#include <asm/io.h>
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#include <dm.h>
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#include <power/regulator.h>
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#include <renesas/rzg2l-usbphy.h>
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#define VBENCTL 0x03c
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#define VBENCTL_VBUS_SEL BIT(0)
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static int rzg2l_usbphy_regulator_set_enable(struct udevice *dev, bool enable)
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{
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struct rzg2l_usbphy_ctrl_priv *priv = dev_get_priv(dev->parent);
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if (enable)
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clrbits_le32(priv->regs + VBENCTL, VBENCTL_VBUS_SEL);
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else
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setbits_le32(priv->regs + VBENCTL, VBENCTL_VBUS_SEL);
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return 0;
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}
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static int rzg2l_usbphy_regulator_get_enable(struct udevice *dev)
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{
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struct rzg2l_usbphy_ctrl_priv *priv = dev_get_priv(dev->parent);
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return !!readl(priv->regs + VBENCTL) & VBENCTL_VBUS_SEL;
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}
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static const struct dm_regulator_ops rzg2l_usbphy_regulator_ops = {
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.get_enable = rzg2l_usbphy_regulator_get_enable,
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.set_enable = rzg2l_usbphy_regulator_set_enable,
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};
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U_BOOT_DRIVER(rzg2l_usbphy_regulator) = {
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.name = "rzg2l_usbphy_regulator",
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.id = UCLASS_REGULATOR,
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.ops = &rzg2l_usbphy_regulator_ops,
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};
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