[components][SPI][spi-bit-ops]xfer返回值优化

RT-Thread · Jul 1, 2024 · e42691b · e42691b
1 parent d8a1219
commit e42691b
Showing 1 changed file with 6 additions and 21 deletions.
diff --git a/components/drivers/spi/spi-bit-ops.c b/components/drivers/spi/spi-bit-ops.c
@@ -423,6 +423,7 @@ rt_ssize_t spi_bit_xfer(struct rt_spi_device *device, struct rt_spi_message *mes
     struct rt_spi_bit_ops *ops = obj->ops;
     struct rt_spi_configuration *config = &obj->config;
     rt_base_t cs_pin = device->cs_pin;
+    rt_ssize_t length = 0;
 
     RT_ASSERT(device != NULL);
     RT_ASSERT(message != NULL);
@@ -468,38 +469,22 @@ rt_ssize_t spi_bit_xfer(struct rt_spi_device *device, struct rt_spi_message *mes
     {
         if (config->data_width <= 8)
         {
-            spi_xfer_3line_data8(ops,
-                                 config,
-                                 message->send_buf,
-                                 message->recv_buf,
-                                 message->length);
+            length = spi_xfer_3line_data8(ops, config, message->send_buf, message->recv_buf, message->length);
         }
         else if (config->data_width <= 16)
         {
-            spi_xfer_3line_data16(ops,
-                                  config,
-                                  message->send_buf,
-                                  message->recv_buf,
-                                  message->length);
+            length = spi_xfer_3line_data16(ops, config, message->send_buf, message->recv_buf, message->length);
         }
     }
     else
     {
         if (config->data_width <= 8)
         {
-            spi_xfer_4line_data8(ops,
-                                 config,
-                                 message->send_buf,
-                                 message->recv_buf,
-                                 message->length);
+            length = spi_xfer_4line_data8(ops, config, message->send_buf, message->recv_buf, message->length);
         }
         else if (config->data_width <= 16)
         {
-            spi_xfer_4line_data16(ops,
-                                  config,
-                                  message->send_buf,
-                                  message->recv_buf,
-                                  message->length);
+            length = spi_xfer_4line_data16(ops, config, message->send_buf, message->recv_buf, message->length);
         }
     }
 
@@ -518,7 +503,7 @@ rt_ssize_t spi_bit_xfer(struct rt_spi_device *device, struct rt_spi_message *mes
         LOG_I("spi release cs\n");
     }
 
-    return message->length;
+    return length;
 }
 
 static const struct rt_spi_ops spi_bit_bus_ops =