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316f569df7
Up to now st33zp24_remove() returns zero unconditionally. Make it return no value instead which makes it easier to see in the callers that there is no error to handle. Also the return value of i2c and spi remove callbacks is ignored anyway. Link: https://lore.kernel.org/r/20220104231103.227924-1-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220123175201.34839-4-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
38 lines
959 B
C
38 lines
959 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* STMicroelectronics TPM Linux driver for TPM ST33ZP24
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* Copyright (C) 2009 - 2016 STMicroelectronics
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*/
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#ifndef __LOCAL_ST33ZP24_H__
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#define __LOCAL_ST33ZP24_H__
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#define TPM_WRITE_DIRECTION 0x80
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#define ST33ZP24_BUFSIZE 2048
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struct st33zp24_dev {
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struct tpm_chip *chip;
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void *phy_id;
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const struct st33zp24_phy_ops *ops;
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int locality;
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int irq;
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u32 intrs;
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int io_lpcpd;
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wait_queue_head_t read_queue;
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};
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struct st33zp24_phy_ops {
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int (*send)(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size);
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int (*recv)(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size);
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};
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#ifdef CONFIG_PM_SLEEP
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int st33zp24_pm_suspend(struct device *dev);
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int st33zp24_pm_resume(struct device *dev);
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#endif
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int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops,
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struct device *dev, int irq, int io_lpcpd);
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void st33zp24_remove(struct tpm_chip *chip);
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#endif /* __LOCAL_ST33ZP24_H__ */
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