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Fix chip/imxrt_lpi2c.c:755:1: error: unused function 'imxrt_lpi2c_sem_waitstop'

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Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao 2022-11-19 12:09:42 +08:00 committed by Petro Karashchenko
parent 422272044b
commit 427f65ac28
1 changed files with 0 additions and 91 deletions
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91
arch/arm/src/imxrt/imxrt_lpi2c.c
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@ -243,8 +243,6 @@ static uint32_t imxrt_lpi2c_toticks(int msgc, struct i2c_msg_s *msgs);
static inline int
imxrt_lpi2c_sem_waitdone(struct imxrt_lpi2c_priv_s *priv);
static inline void
imxrt_lpi2c_sem_waitstop(struct imxrt_lpi2c_priv_s *priv);
#ifdef CONFIG_I2C_TRACE
static void imxrt_lpi2c_tracereset(struct imxrt_lpi2c_priv_s *priv);
@ -743,95 +741,6 @@ imxrt_lpi2c_sem_waitdone(struct imxrt_lpi2c_priv_s *priv)
}
#endif
/****************************************************************************
* Name: imxrt_lpi2c_sem_waitstop
*
* Description:
* Wait for a STOP to complete
*
****************************************************************************/
static inline void
imxrt_lpi2c_sem_waitstop(struct imxrt_lpi2c_priv_s *priv)
{
clock_t start;
clock_t elapsed;
clock_t timeout;
uint32_t regval;
/* Select a timeout */
#ifdef CONFIG_IMXRT_LPI2C_DYNTIMEO
timeout = USEC2TICK(CONFIG_IMXRT_LPI2C_DYNTIMEO_STARTSTOP);
#else
timeout = CONFIG_IMXRT_LPI2C_TIMEOTICKS;
#endif
/* Wait as stop might still be in progress; but stop might also
* be set because of a timeout error: "The [STOP] bit is set and
* cleared by software, cleared by hardware when a Stop condition is
* detected, set by hardware when a timeout error is detected."
*/
start = clock_systime_ticks();
do
{
/* Calculate the elapsed time */
elapsed = clock_systime_ticks() - start;
/* Check for STOP condition */
if (priv->config->mode == LPI2C_MASTER)
{
regval = imxrt_lpi2c_getreg(priv, IMXRT_LPI2C_MSR_OFFSET);
if ((regval & LPI2C_MSR_SDF) == LPI2C_MSR_SDF)
{
return;
}
}
/* Enable Interrupts when slave mode */
else
{
regval = imxrt_lpi2c_getreg(priv, IMXRT_LPI2C_SSR_OFFSET);
if ((regval & LPI2C_SSR_SDF) == LPI2C_SSR_SDF)
{
return;
}
}
/* Check for NACK error */
if (priv->config->mode == LPI2C_MASTER)
{
regval = imxrt_lpi2c_getreg(priv, IMXRT_LPI2C_MSR_OFFSET);
if ((regval & LPI2C_MSR_NDF) == LPI2C_MSR_NDF)
{
return;
}
}
/* Enable Interrupts when slave mode */
else
{
#warning Missing logic for I2C Slave
}
}
/* Loop until the stop is complete or a timeout occurs. */
while (elapsed < timeout);
/* If we get here then a timeout occurred with the STOP condition
* still pending.
*/
i2cinfo("Timeout with Status Register: %" PRIx32 "\n", regval);
}
/****************************************************************************
* Name: imxrt_dma_callback
*