---

yaml
---
r: 294968
b: refs/heads/master
c: a121216
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f9331d115dadd4e63619ebb47960ec2b7d253700
+refs/heads/master: a1212162f493852e4becb7abf55f78d17872d8a8

trunk/drivers/media/video/s5p-fimc/mipi-csis.c

@@ -1,8 +1,8 @@
 /*
  * Samsung S5P/EXYNOS4 SoC series MIPI-CSI receiver driver
  *
- * Copyright (C) 2011 Samsung Electronics Co., Ltd.
- * Contact: Sylwester Nawrocki, <s.nawrocki@samsung.com>
+ * Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd.
+ * Sylwester Nawrocki, <s.nawrocki@samsung.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -100,7 +100,6 @@ enum {
  * @pads: CSIS pads array
  * @sd: v4l2_subdev associated with CSIS device instance
  * @pdev: CSIS platform device
- * @regs_res: requested I/O register memory resource
  * @regs: mmaped I/O registers memory
  * @clock: CSIS clocks
  * @irq: requested s5p-mipi-csis irq number
@@ -113,7 +112,6 @@ struct csis_state {
 	struct media_pad pads[CSIS_PADS_NUM];
 	struct v4l2_subdev sd;
 	struct platform_device *pdev;
-	struct resource *regs_res;
 	void __iomem *regs;
 	struct regulator_bulk_data supplies[CSIS_NUM_SUPPLIES];
 	struct clk *clock[NUM_CSIS_CLOCKS];
@@ -490,12 +488,11 @@ static int __devinit s5pcsis_probe(struct platform_device *pdev)
 {
 	struct s5p_platform_mipi_csis *pdata;
 	struct resource *mem_res;
-	struct resource *regs_res;
 	struct csis_state *state;
 	int ret = -ENOMEM;
 	int i;
 
-	state = kzalloc(sizeof(*state), GFP_KERNEL);
+	state = devm_kzalloc(&pdev->dev, sizeof(*state), GFP_KERNEL);
 	if (!state)
 		return -ENOMEM;
 
@@ -505,66 +502,51 @@ static int __devinit s5pcsis_probe(struct platform_device *pdev)
 	pdata = pdev->dev.platform_data;
 	if (pdata == NULL || pdata->phy_enable == NULL) {
 		dev_err(&pdev->dev, "Platform data not fully specified\n");
-		goto e_free;
+		return -EINVAL;
 	}
 
 	if ((pdev->id == 1 && pdata->lanes > CSIS1_MAX_LANES) ||
 	    pdata->lanes > CSIS0_MAX_LANES) {
-		ret = -EINVAL;
 		dev_err(&pdev->dev, "Unsupported number of data lanes: %d\n",
 			pdata->lanes);
-		goto e_free;
+		return -EINVAL;
 	}
 
 	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!mem_res) {
-		dev_err(&pdev->dev, "Failed to get IO memory region\n");
-		goto e_free;
-	}
-
-	regs_res = request_mem_region(mem_res->start, resource_size(mem_res),
-				      pdev->name);
-	if (!regs_res) {
-		dev_err(&pdev->dev, "Failed to request IO memory region\n");
-		goto e_free;
+	state->regs = devm_request_and_ioremap(&pdev->dev, mem_res);
+	if (state->regs == NULL) {
+		dev_err(&pdev->dev, "Failed to request and remap io memory\n");
+		return -ENXIO;
 	}
-	state->regs_res = regs_res;
-
-	state->regs = ioremap(mem_res->start, resource_size(mem_res));
-	if (!state->regs) {
-		dev_err(&pdev->dev, "Failed to remap IO region\n");
-		goto e_reqmem;
-	}
-
-	ret = s5pcsis_clk_get(state);
-	if (ret)
-		goto e_unmap;
-
-	clk_enable(state->clock[CSIS_CLK_MUX]);
-	if (pdata->clk_rate)
-		clk_set_rate(state->clock[CSIS_CLK_MUX], pdata->clk_rate);
-	else
-		dev_WARN(&pdev->dev, "No clock frequency specified!\n");
 
 	state->irq = platform_get_irq(pdev, 0);
 	if (state->irq < 0) {
-		ret = state->irq;
 		dev_err(&pdev->dev, "Failed to get irq\n");
-		goto e_clkput;
+		return state->irq;
 	}
 
 	for (i = 0; i < CSIS_NUM_SUPPLIES; i++)
 		state->supplies[i].supply = csis_supply_name[i];
 
 	ret = regulator_bulk_get(&pdev->dev, CSIS_NUM_SUPPLIES,
 				 state->supplies);
+	if (ret)
+		return ret;
+
+	ret = s5pcsis_clk_get(state);
 	if (ret)
 		goto e_clkput;
 
-	ret = request_irq(state->irq, s5pcsis_irq_handler, 0,
-			  dev_name(&pdev->dev), state);
+	clk_enable(state->clock[CSIS_CLK_MUX]);
+	if (pdata->clk_rate)
+		clk_set_rate(state->clock[CSIS_CLK_MUX], pdata->clk_rate);
+	else
+		dev_WARN(&pdev->dev, "No clock frequency specified!\n");
+
+	ret = devm_request_irq(&pdev->dev, state->irq, s5pcsis_irq_handler,
+			       0, dev_name(&pdev->dev), state);
 	if (ret) {
-		dev_err(&pdev->dev, "request_irq failed\n");
+		dev_err(&pdev->dev, "Interrupt request failed\n");
 		goto e_regput;
 	}
 
@@ -583,7 +565,7 @@ static int __devinit s5pcsis_probe(struct platform_device *pdev)
 	ret = media_entity_init(&state->sd.entity,
 				CSIS_PADS_NUM, state->pads, 0);
 	if (ret < 0)
-		goto e_irqfree;
+		goto e_clkput;
 
 	/* This allows to retrieve the platform device id by the host driver */
 	v4l2_set_subdevdata(&state->sd, pdev);
@@ -592,22 +574,13 @@ static int __devinit s5pcsis_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, &state->sd);
 
 	pm_runtime_enable(&pdev->dev);
-
 	return 0;
 
-e_irqfree:
-	free_irq(state->irq, state);
 e_regput:
 	regulator_bulk_free(CSIS_NUM_SUPPLIES, state->supplies);
 e_clkput:
 	clk_disable(state->clock[CSIS_CLK_MUX]);
 	s5pcsis_clk_put(state);
-e_unmap:
-	iounmap(state->regs);
-e_reqmem:
-	release_mem_region(regs_res->start, resource_size(regs_res));
-e_free:
-	kfree(state);
 	return ret;
 }
 
@@ -709,21 +682,15 @@ static int __devexit s5pcsis_remove(struct platform_device *pdev)
 {
 	struct v4l2_subdev *sd = platform_get_drvdata(pdev);
 	struct csis_state *state = sd_to_csis_state(sd);
-	struct resource *res = state->regs_res;
 
 	pm_runtime_disable(&pdev->dev);
 	s5pcsis_suspend(&pdev->dev);
 	clk_disable(state->clock[CSIS_CLK_MUX]);
 	pm_runtime_set_suspended(&pdev->dev);
-
 	s5pcsis_clk_put(state);
 	regulator_bulk_free(CSIS_NUM_SUPPLIES, state->supplies);
 
 	media_entity_cleanup(&state->sd.entity);
-	free_irq(state->irq, state);
-	iounmap(state->regs);
-	release_mem_region(res->start, resource_size(res));
-	kfree(state);
 
 	return 0;
 }