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phy: mediatek: add helpers to update bits of registers

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Add three helpers mtk_phy_clear/set/update_bits() for registers operation

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20211218082802.5256-3-chunfeng.yun@mediatek.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Chunfeng Yun 2021-12-18 16:28:00 +08:00 committed by Vinod Koul
parent 6f2b033cb8
commit 1371b9a563
1 changed files with 38 additions and 0 deletions
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38
drivers/phy/mediatek/phy-mtk-io.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2021 MediaTek Inc.
*
* Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
*/
#ifndef __PHY_MTK_H__
#define __PHY_MTK_H__
#include <linux/io.h>
static inline void mtk_phy_clear_bits(void __iomem *reg, u32 bits)
{
u32 tmp = readl(reg);
tmp &= ~bits;
writel(tmp, reg);
}
static inline void mtk_phy_set_bits(void __iomem *reg, u32 bits)
{
u32 tmp = readl(reg);
tmp |= bits;
writel(tmp, reg);
}
static inline void mtk_phy_update_bits(void __iomem *reg, u32 mask, u32 val)
{
u32 tmp = readl(reg);
tmp &= ~mask;
tmp |= val & mask;
writel(tmp, reg);
}
#endif