[PATCH 3/3] remoteproc: da8xx: Reorder resource fetching in probe()

[Andrew Davis <afd@ti.com>]

Currently several resource are fetched before we allocate our instance
data struct. The is unlike most other drivers that fill in the instance
data with resources as they are fetched. Move these down which is more
natural and also removes the need for several temporarily locals.

Signed-off-by: Andrew Davis <afd@ti.com>
---
 drivers/remoteproc/da8xx_remoteproc.c | 75 ++++++++++++---------------
 1 file changed, 32 insertions(+), 43 deletions(-)

diff --git a/drivers/remoteproc/da8xx_remoteproc.c b/drivers/remoteproc/da8xx_remoteproc.c
index f44bee303eb5e..ea82500165cb6 100644
--- a/drivers/remoteproc/da8xx_remoteproc.c
+++ b/drivers/remoteproc/da8xx_remoteproc.c
@@ -242,45 +242,9 @@ static int da8xx_rproc_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct da8xx_rproc *drproc;
 	struct rproc *rproc;
-	struct irq_data *irq_data;
-	struct clk *dsp_clk;
-	struct reset_control *dsp_reset;
-	void __iomem *chipsig;
-	void __iomem *bootreg;
 	int irq;
 	int ret;
 
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0)
-		return irq;
-
-	irq_data = irq_get_irq_data(irq);
-	if (!irq_data)
-		return dev_err_probe(dev, -EINVAL, "irq_get_irq_data(%d): NULL\n", irq);
-
-	bootreg = devm_platform_ioremap_resource_byname(pdev, "host1cfg");
-	if (IS_ERR(bootreg))
-		return PTR_ERR(bootreg);
-
-	chipsig = devm_platform_ioremap_resource_byname(pdev, "chipsig");
-	if (IS_ERR(chipsig))
-		return PTR_ERR(chipsig);
-
-	dsp_clk = devm_clk_get(dev, NULL);
-	if (IS_ERR(dsp_clk))
-		return dev_err_probe(dev, PTR_ERR(dsp_clk), "clk_get error\n");
-
-	dsp_reset = devm_reset_control_get_exclusive(dev, NULL);
-	if (IS_ERR(dsp_reset))
-		return dev_err_probe(dev, PTR_ERR(dsp_reset), "unable to get reset control\n");
-
-	if (dev->of_node) {
-		ret = of_reserved_mem_device_init(dev);
-		if (ret)
-			return dev_err_probe(dev, ret, "device does not have specific CMA pool\n");
-		devm_add_action_or_reset(&pdev->dev, da8xx_rproc_mem_release, &pdev->dev);
-	}
-
 	rproc = devm_rproc_alloc(dev, "dsp", &da8xx_rproc_ops, da8xx_fw_name,
 				 sizeof(*drproc));
 	if (!rproc)
@@ -291,14 +255,43 @@ static int da8xx_rproc_probe(struct platform_device *pdev)
 
 	drproc = rproc->priv;
 	drproc->rproc = rproc;
-	drproc->dsp_clk = dsp_clk;
-	drproc->dsp_reset = dsp_reset;
 	rproc->has_iommu = false;
 
+	drproc->dsp_clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(drproc->dsp_clk))
+		return dev_err_probe(dev, PTR_ERR(drproc->dsp_clk), "clk_get error\n");
+
+	drproc->dsp_reset = devm_reset_control_get_exclusive(dev, NULL);
+	if (IS_ERR(drproc->dsp_reset))
+		return dev_err_probe(dev, PTR_ERR(drproc->dsp_reset), "unable to get reset control\n");
+
+	if (dev->of_node) {
+		ret = of_reserved_mem_device_init(dev);
+		if (ret)
+			return dev_err_probe(dev, ret, "device does not have specific CMA pool\n");
+		devm_add_action_or_reset(&pdev->dev, da8xx_rproc_mem_release, &pdev->dev);
+	}
+
 	ret = da8xx_rproc_get_internal_memories(pdev, drproc);
 	if (ret)
 		return ret;
 
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	drproc->irq_data = irq_get_irq_data(irq);
+	if (!drproc->irq_data)
+		return dev_err_probe(dev, -EINVAL, "irq_get_irq_data(%d): NULL\n", irq);
+
+	drproc->chipsig = devm_platform_ioremap_resource_byname(pdev, "chipsig");
+	if (IS_ERR(drproc->chipsig))
+		return PTR_ERR(drproc->chipsig);
+
+	drproc->bootreg = devm_platform_ioremap_resource_byname(pdev, "host1cfg");
+	if (IS_ERR(drproc->bootreg))
+		return PTR_ERR(drproc->bootreg);
+
 	/* everything the ISR needs is now setup, so hook it up */
 	ret = devm_request_threaded_irq(dev, irq, da8xx_rproc_callback,
 					handle_event, 0, "da8xx-remoteproc",
@@ -311,14 +304,10 @@ static int da8xx_rproc_probe(struct platform_device *pdev)
 	 * *not* in reset, but da8xx_rproc_start() needs the DSP to be
 	 * held in reset at the time it is called.
 	 */
-	ret = reset_control_assert(dsp_reset);
+	ret = reset_control_assert(drproc->dsp_reset);
 	if (ret)
 		return ret;
 
-	drproc->chipsig = chipsig;
-	drproc->bootreg = bootreg;
-	drproc->irq_data = irq_data;
-
 	ret = devm_rproc_add(dev, rproc);
 	if (ret)
 		return dev_err_probe(dev, ret, "rproc_add failed\n");
-- 
2.39.2