[PATCH 10/25] coresight: tpiu: Clean up device specific data

[Suzuki K Poulose]

Switch to using the coresight device instead of the parent
amba device.

Cc: Mathieu Poirier <mathieu.poir...@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poul...@arm.com>
---
 drivers/hwtracing/coresight/coresight-tpiu.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-tpiu.c 
b/drivers/hwtracing/coresight/coresight-tpiu.c
index b2f72a1..9763721 100644
--- a/drivers/hwtracing/coresight/coresight-tpiu.c
+++ b/drivers/hwtracing/coresight/coresight-tpiu.c
@@ -48,15 +48,13 @@
 
 /**
  * @base:      memory mapped base address for this component.
- * @dev:       the device entity associated to this component.
+ * @dev:       the coresight device entity associated to this component.
  * @atclk:     optional clock for the core parts of the TPIU.
- * @csdev:     component vitals needed by the framework.
  */
 struct tpiu_drvdata {
        void __iomem            *base;
        struct device           *dev;
        struct clk              *atclk;
-       struct coresight_device *csdev;
 };
 
 static void tpiu_enable_hw(struct tpiu_drvdata *drvdata)
@@ -121,6 +119,7 @@ static int tpiu_probe(struct amba_device *adev, const 
struct amba_id *id)
        struct tpiu_drvdata *drvdata;
        struct resource *res = &adev->res;
        struct coresight_desc desc = { 0 };
+       struct coresight_device *csdev;
        struct device_node *np = adev->dev.of_node;
 
        if (np) {
@@ -134,7 +133,6 @@ static int tpiu_probe(struct amba_device *adev, const 
struct amba_id *id)
        if (!drvdata)
                return -ENOMEM;
 
-       drvdata->dev = &adev->dev;
        drvdata->atclk = devm_clk_get(&adev->dev, "atclk"); /* optional */
        if (!IS_ERR(drvdata->atclk)) {
                ret = clk_prepare_enable(drvdata->atclk);
@@ -160,9 +158,11 @@ static int tpiu_probe(struct amba_device *adev, const 
struct amba_id *id)
        desc.ops = &tpiu_cs_ops;
        desc.pdata = pdata;
        desc.dev = dev;
-       drvdata->csdev = coresight_register(&desc);
+       csdev = coresight_register(&desc);
+       if (!IS_ERR(csdev))
+               drvdata->dev = &csdev->dev;
 
-       return PTR_ERR_OR_ZERO(drvdata->csdev);
+       return PTR_ERR_OR_ZERO(csdev);
 }
 
 #ifdef CONFIG_PM
-- 
2.7.4