threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
39 lines
930 B
C
39 lines
930 B
C
// SPDX-License-Identifier: GPL-2.0
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#include "tw5864.h"
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void tw5864_indir_writeb(struct tw5864_dev *dev, u16 addr, u8 data)
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{
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int retries = 30000;
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while (tw_readl(TW5864_IND_CTL) & BIT(31) && --retries)
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;
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if (!retries)
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dev_err(&dev->pci->dev,
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"tw_indir_writel() retries exhausted before writing\n");
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tw_writel(TW5864_IND_DATA, data);
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tw_writel(TW5864_IND_CTL, addr << 2 | TW5864_RW | TW5864_ENABLE);
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}
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u8 tw5864_indir_readb(struct tw5864_dev *dev, u16 addr)
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{
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int retries = 30000;
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while (tw_readl(TW5864_IND_CTL) & BIT(31) && --retries)
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;
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if (!retries)
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dev_err(&dev->pci->dev,
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"tw_indir_readl() retries exhausted before reading\n");
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tw_writel(TW5864_IND_CTL, addr << 2 | TW5864_ENABLE);
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retries = 30000;
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while (tw_readl(TW5864_IND_CTL) & BIT(31) && --retries)
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;
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if (!retries)
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dev_err(&dev->pci->dev,
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"tw_indir_readl() retries exhausted at reading\n");
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return tw_readl(TW5864_IND_DATA);
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}
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