恢复控制器的cs控制

diff --git a/drivers/spi/rk2818_spim.c b/drivers/spi/rk2818_spim.c
index 5013c30aa603f8b7b2ea432d65954fae6a3de872..638ec7dc99b5a1c6d3bfd36b148c54463350d56c 100644 (file)
--- a/drivers/spi/rk2818_spim.c
+++ b/drivers/spi/rk2818_spim.c
@@ -185,14 +185,15 @@ static void flush(struct rk2818_spi *dws)
 
 static void null_cs_control(u32 command)
 {
-               if(command == 2)        
-                       gpio_direction_output(RK2818_PIN_PB0,GPIO_LOW);
-               else if(command == 1)
-                       gpio_direction_output(RK2818_PIN_PB4,GPIO_LOW);
-               else{
-                       gpio_direction_output(RK2818_PIN_PB0,GPIO_HIGH);
-                       gpio_direction_output(RK2818_PIN_PB4,GPIO_HIGH);
-               }
+    //printk("null_cs_control [%d]\n", command);
+       if(command == 2)        
+               gpio_direction_output(RK2818_PIN_PB0,GPIO_LOW);
+       else if(command == 1)
+               gpio_direction_output(RK2818_PIN_PB4,GPIO_LOW);
+       else{
+               gpio_direction_output(RK2818_PIN_PB0,GPIO_HIGH);
+               gpio_direction_output(RK2818_PIN_PB4,GPIO_HIGH);
+       }
 }
 
 static int null_writer(struct rk2818_spi *dws)
@@ -436,7 +437,7 @@ static void spi_chip_sel(struct rk2818_spi *dws, u16 cs)
        if (dws->cs_control){
            dws->cs_control(cs+1);
        }
-       //rk2818_writel(dws, SPIM_SER, 1 << cs);
+       rk2818_writel(dws, SPIM_SER, 1 << cs);
 }
 
 static void pump_transfers(unsigned long data)
@@ -655,7 +656,7 @@ static void pump_messages(struct work_struct *work)
                                                struct spi_transfer,
                                                transfer_list);
        dws->cur_chip = spi_get_ctldata(dws->cur_msg->spi);
-    dws->prev_chip = NULL; //ÿ¸öpump messageʱǿÖƸüÐÂcs dxj
+    //dws->prev_chip = NULL; //ÿ¸öpump messageʱǿÖƸüÐÂcs dxj
     
        /* Mark as busy and launch transfers */
        tasklet_schedule(&dws->pump_transfers);