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V4L/DVB (6876): ivtv: mspx4xx needs a longer i2c udelay

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Hans Verkuil 17 年之前
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共有 1 個文件被更改,包括 3 次插入0 次删除
  1. 3 0
      drivers/media/video/ivtv/ivtv-i2c.c

+ 3 - 0
drivers/media/video/ivtv/ivtv-i2c.c

@@ -718,6 +718,9 @@ int init_ivtv_i2c(struct ivtv *itv)
 		       sizeof(struct i2c_adapter));
 		       sizeof(struct i2c_adapter));
 		memcpy(&itv->i2c_algo, &ivtv_i2c_algo_template,
 		memcpy(&itv->i2c_algo, &ivtv_i2c_algo_template,
 		       sizeof(struct i2c_algo_bit_data));
 		       sizeof(struct i2c_algo_bit_data));
+		/* The mspx4xx chips need a longer delay for some reason */
+		if (itv->hw_flags & IVTV_HW_MSP34XX)
+			itv->i2c_algo.udelay = 10;
 		itv->i2c_algo.data = itv;
 		itv->i2c_algo.data = itv;
 		itv->i2c_adap.algo_data = &itv->i2c_algo;
 		itv->i2c_adap.algo_data = &itv->i2c_algo;
 	}
 	}