From b0e880b04c336b3c3d7b4da7dfa477fb9c295b97 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Wed, 3 May 2017 18:26:24 -0600
Subject: [PATCH] Revert "STM32 I2C:  More backward tests of CONFIG_I2C_POLLED.
  Needs to be reviewed."

This reverts commit 1e054a2d3b1e3fb7be4348d88e35db3773e836b9.
---
 arch/arm/src/stm32/stm32_i2c.c       | 4 ++--
 arch/arm/src/stm32/stm32f30xxx_i2c.c | 4 ++--
 arch/arm/src/stm32f0/stm32f0_i2c.c   | 4 ++--
 arch/arm/src/stm32f7/stm32_i2c.c     | 4 ++--
 arch/arm/src/stm32l4/stm32l4_i2c.c   | 4 ++--
 5 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/arm/src/stm32/stm32_i2c.c b/arch/arm/src/stm32/stm32_i2c.c
index 6a08e14143..5f3e1c2c5c 100644
--- a/arch/arm/src/stm32/stm32_i2c.c
+++ b/arch/arm/src/stm32/stm32_i2c.c
@@ -1272,7 +1272,7 @@ static int stm32_i2c_isr_process(struct stm32_i2c_priv_s *priv)
            * device.
            */
 
-#ifndef CONFIG_I2C_POLLED
+#ifdef CONFIG_I2C_POLLED
           irqstate_t flags = enter_critical_section();
 #endif
           /* Receive a byte */
@@ -1287,7 +1287,7 @@ static int stm32_i2c_isr_process(struct stm32_i2c_priv_s *priv)
               stm32_i2c_modifyreg(priv, STM32_I2C_CR1_OFFSET, I2C_CR1_ACK, 0);
             }
 
-#ifndef CONFIG_I2C_POLLED
+#ifdef CONFIG_I2C_POLLED
           leave_critical_section(flags);
 #endif
         }
diff --git a/arch/arm/src/stm32/stm32f30xxx_i2c.c b/arch/arm/src/stm32/stm32f30xxx_i2c.c
index 9d616b7489..539305194d 100644
--- a/arch/arm/src/stm32/stm32f30xxx_i2c.c
+++ b/arch/arm/src/stm32/stm32f30xxx_i2c.c
@@ -1332,7 +1332,7 @@ static int stm32_i2c_isr_process(struct stm32_i2c_priv_s *priv)
            * device.
            */
 
-#ifndef CONFIG_I2C_POLLED
+#ifdef CONFIG_I2C_POLLED
           irqstate_t flags = enter_critical_section();
 #endif
           /* Receive a byte */
@@ -1347,7 +1347,7 @@ static int stm32_i2c_isr_process(struct stm32_i2c_priv_s *priv)
               /* autoend? */
             }
 
-#ifndef CONFIG_I2C_POLLED
+#ifdef CONFIG_I2C_POLLED
           leave_critical_section(flags);
 #endif
         }
diff --git a/arch/arm/src/stm32f0/stm32f0_i2c.c b/arch/arm/src/stm32f0/stm32f0_i2c.c
index b8f7ede7d6..c782754fc3 100644
--- a/arch/arm/src/stm32f0/stm32f0_i2c.c
+++ b/arch/arm/src/stm32f0/stm32f0_i2c.c
@@ -1306,7 +1306,7 @@ static int stm32f0_i2c_isr_process(struct stm32f0_i2c_priv_s *priv)
            * device.
            */
 
-#ifndef CONFIG_I2C_POLLED
+#ifdef CONFIG_I2C_POLLED
           irqstate_t flags = enter_critical_section();
 #endif
           /* Receive a byte */
@@ -1321,7 +1321,7 @@ static int stm32f0_i2c_isr_process(struct stm32f0_i2c_priv_s *priv)
               /* autoend? */
             }
 
-#ifndef CONFIG_I2C_POLLED
+#ifdef CONFIG_I2C_POLLED
           leave_critical_section(flags);
 #endif
         }
diff --git a/arch/arm/src/stm32f7/stm32_i2c.c b/arch/arm/src/stm32f7/stm32_i2c.c
index d85023e6c5..be3122ea4e 100644
--- a/arch/arm/src/stm32f7/stm32_i2c.c
+++ b/arch/arm/src/stm32f7/stm32_i2c.c
@@ -1776,7 +1776,7 @@ static int stm32_i2c_isr_process(struct stm32_i2c_priv_s *priv)
            * sequence.  Otherwise, additional bytes may be received.
            */
 
-#ifndef CONFIG_I2C_POLLED
+#ifdef CONFIG_I2C_POLLED
           irqstate_t state = enter_critical_section();
 #endif
           /* Receive a byte */
@@ -1793,7 +1793,7 @@ static int stm32_i2c_isr_process(struct stm32_i2c_priv_s *priv)
 
           priv->dcnt--;
 
-#ifndef CONFIG_I2C_POLLED
+#ifdef CONFIG_I2C_POLLED
           leave_critical_section(state);
 #endif
         }
diff --git a/arch/arm/src/stm32l4/stm32l4_i2c.c b/arch/arm/src/stm32l4/stm32l4_i2c.c
index 956dd8c788..58c2fa780f 100644
--- a/arch/arm/src/stm32l4/stm32l4_i2c.c
+++ b/arch/arm/src/stm32l4/stm32l4_i2c.c
@@ -1384,7 +1384,7 @@ static int stm32l4_i2c_isr_process(struct stm32l4_i2c_priv_s *priv)
            * device.
            */
 
-#ifndef CONFIG_I2C_POLLED
+#ifdef CONFIG_I2C_POLLED
           irqstate_t flags = enter_critical_section();
 #endif
           /* Receive a byte */
@@ -1399,7 +1399,7 @@ static int stm32l4_i2c_isr_process(struct stm32l4_i2c_priv_s *priv)
               /* autoend? */
             }
 
-#ifndef CONFIG_I2C_POLLED
+#ifdef CONFIG_I2C_POLLED
           leave_critical_section(flags);
 #endif
         }