forked from ~ljy/RK356X_SDK_RELEASE
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hc
2024-05-10 61598093bbdd283a7edc367d900f223070ead8d2 
 kernel/drivers/i2c/busses/i2c-owl.c
....@@ -87,9 +87,6 @@
8787 
8888 #define OWL_I2C_MAX_RETRIES	50
8989 
90
-#define OWL_I2C_DEF_SPEED_HZ	100000
91
-#define OWL_I2C_MAX_SPEED_HZ	400000
92
-
9390 struct owl_i2c_dev {
9491 	struct i2c_adapter	adap;
9592 	struct i2c_msg		*msg;
....@@ -168,10 +165,9 @@
168165 {
169166 	struct owl_i2c_dev *i2c_dev = _dev;
170167 	struct i2c_msg *msg = i2c_dev->msg;
171
-	unsigned long flags;
172168 	unsigned int stat, fifostat;
173169 
174
-	spin_lock_irqsave(&i2c_dev->lock, flags);
170
+	spin_lock(&i2c_dev->lock);
175171 
176172 	i2c_dev->err = 0;
177173 
....@@ -217,7 +213,7 @@
217213 			   OWL_I2C_STAT_IRQP, true);
218214 
219215 	complete_all(&i2c_dev->msg_complete);
220
-	spin_unlock_irqrestore(&i2c_dev->lock, flags);
216
+	spin_unlock(&i2c_dev->lock);
221217 
222218 	return IRQ_HANDLED;
223219 }
....@@ -405,31 +401,27 @@
405401 {
406402 	struct device *dev = &pdev->dev;
407403 	struct owl_i2c_dev *i2c_dev;
408
-	struct resource *res;
409404 	int ret, irq;
410405 
411406 	i2c_dev = devm_kzalloc(dev, sizeof(*i2c_dev), GFP_KERNEL);
412407 	if (!i2c_dev)
413408 		return -ENOMEM;
414409 
415
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
416
-	i2c_dev->base = devm_ioremap_resource(dev, res);
410
+	i2c_dev->base = devm_platform_ioremap_resource(pdev, 0);
417411 	if (IS_ERR(i2c_dev->base))
418412 		return PTR_ERR(i2c_dev->base);
419413 
420414 	irq = platform_get_irq(pdev, 0);
421
-	if (irq < 0) {
422
-		dev_err(dev, "failed to get IRQ number\n");
415
+	if (irq < 0)
423416 		return irq;
424
-	}
425417 
426418 	if (of_property_read_u32(dev->of_node, "clock-frequency",
427419 				 &i2c_dev->bus_freq))
428
-		i2c_dev->bus_freq = OWL_I2C_DEF_SPEED_HZ;
420
+		i2c_dev->bus_freq = I2C_MAX_STANDARD_MODE_FREQ;
429421 
430422 	/* We support only frequencies of 100k and 400k for now */
431
-	if (i2c_dev->bus_freq != OWL_I2C_DEF_SPEED_HZ &&
432
-	    i2c_dev->bus_freq != OWL_I2C_MAX_SPEED_HZ) {
423
+	if (i2c_dev->bus_freq != I2C_MAX_STANDARD_MODE_FREQ &&
424
+	    i2c_dev->bus_freq != I2C_MAX_FAST_MODE_FREQ) {
433425 		dev_err(dev, "invalid clock-frequency %d\n", i2c_dev->bus_freq);
434426 		return -EINVAL;
435427 	}
....@@ -481,6 +473,7 @@
481473 }
482474 
483475 static const struct of_device_id owl_i2c_of_match[] = {
476
+	{ .compatible = "actions,s700-i2c" },
484477 	{ .compatible = "actions,s900-i2c" },
485478 	{ /* sentinel */ }
486479 };