Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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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