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1// SPDX-License-Identifier: GPL-2.02#include "tw5864.h"3 4void tw5864_indir_writeb(struct tw5864_dev *dev, u16 addr, u8 data)5{6 int retries = 30000;7 8 while (tw_readl(TW5864_IND_CTL) & BIT(31) && --retries)9 ;10 if (!retries)11 dev_err(&dev->pci->dev,12 "tw_indir_writel() retries exhausted before writing\n");13 14 tw_writel(TW5864_IND_DATA, data);15 tw_writel(TW5864_IND_CTL, addr << 2 | TW5864_RW | TW5864_ENABLE);16}17 18u8 tw5864_indir_readb(struct tw5864_dev *dev, u16 addr)19{20 int retries = 30000;21 22 while (tw_readl(TW5864_IND_CTL) & BIT(31) && --retries)23 ;24 if (!retries)25 dev_err(&dev->pci->dev,26 "tw_indir_readl() retries exhausted before reading\n");27 28 tw_writel(TW5864_IND_CTL, addr << 2 | TW5864_ENABLE);29 30 retries = 30000;31 while (tw_readl(TW5864_IND_CTL) & BIT(31) && --retries)32 ;33 if (!retries)34 dev_err(&dev->pci->dev,35 "tw_indir_readl() retries exhausted at reading\n");36 37 return tw_readl(TW5864_IND_DATA);38}39