From d1cfcabb1f9e6cc1aa8fb7718dfcb9962d1780e7 Mon Sep 17 00:00:00 2001
From: Alexander Oryshchenko <a.oryshchenko@yahoo.com>
Date: Wed, 24 Jan 2018 06:58:47 -0600
Subject: [PATCH] arch/arm/src/stm32/stm32f40xxx_i2c.c: Correct some recent
changes to STM32F4 I2C that broke poll mode of operation.
---
arch/arm/src/stm32/stm32f40xxx_i2c.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/src/stm32/stm32f40xxx_i2c.c b/arch/arm/src/stm32/stm32f40xxx_i2c.c
index 86de66e7f5..9317b3608c 100644
--- a/arch/arm/src/stm32/stm32f40xxx_i2c.c
+++ b/arch/arm/src/stm32/stm32f40xxx_i2c.c
@@ -1273,7 +1273,7 @@ static int stm32_i2c_isr_process(struct stm32_i2c_priv_s *priv)
if (priv->dcnt == -1 && priv->msgc != 0 && (status & I2C_SR1_SB) == 0)
{
-#ifdef CONFIG_STM32_I2C_DMA
+#if defined(CONFIG_STM32_I2C_DMA) || defined(CONFIG_I2C_POLLED)
return OK;
#else
priv->status |= I2C_SR1_TIMEOUT;
@@ -2049,7 +2049,7 @@ static int stm32_i2c_isr_process(struct stm32_i2c_priv_s *priv)
/* Clear interrupt flags */
-#ifndef CONFIG_STM32_I2C_DMA
+#if !defined(CONFIG_STM32_I2C_DMA) && !defined(CONFIG_I2C_POLLED)
state_error:
#endif
stm32_i2c_putreg(priv, STM32_I2C_SR1_OFFSET, 0);
--
GitLab