From: root <root@dxj.(none)>
Date: Mon, 26 Jul 2010 14:00:25 +0000 (+0800)
Subject: 恢复控制器的cs控制
X-Git-Tag: firefly_0821_release~11338
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e1fd39597ec53ae7e6a27d176928b332d105f12b;p=firefly-linux-kernel-4.4.55.git

恢复控制器的cs控制
---

diff --git a/drivers/spi/rk2818_spim.c b/drivers/spi/rk2818_spim.c
index 5013c30aa603..638ec7dc99b5 100644
--- 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);