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From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, coresight@lists.linaro.org,
	rjw@rjwysocki.net, mathieu.poirier@linaro.org,
	Suzuki K Poulose <suzuki.poulose@arm.com>
Subject: [PATCH v3 12/30] coresight: stm: Rearrange probing the stimulus area
Date: Tue,  7 May 2019 11:52:39 +0100	[thread overview]
Message-ID: <1557226378-10131-13-git-send-email-suzuki.poulose@arm.com> (raw)
In-Reply-To: <1557226378-10131-1-git-send-email-suzuki.poulose@arm.com>

As we are about to refactor the platform specific handling
re-arrange some of the DT specific property handling.

Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
 drivers/hwtracing/coresight/coresight-stm.c | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index 8f50484..3992a35 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -683,14 +683,15 @@ static const struct attribute_group *coresight_stm_groups[] = {
 	NULL,
 };
 
-static int stm_get_resource_byname(struct device_node *np,
-				   char *ch_base, struct resource *res)
+#ifdef CONFIG_OF
+static int of_stm_get_stimulus_area(struct device *dev, struct resource *res)
 {
 	const char *name = NULL;
 	int index = 0, found = 0;
+	struct device_node *np = dev->of_node;
 
 	while (!of_property_read_string_index(np, "reg-names", index, &name)) {
-		if (strcmp(ch_base, name)) {
+		if (strcmp("stm-stimulus-base", name)) {
 			index++;
 			continue;
 		}
@@ -705,6 +706,20 @@ static int stm_get_resource_byname(struct device_node *np,
 
 	return of_address_to_resource(np, index, res);
 }
+#else
+static inline int of_stm_get_stimulus_area(struct device *dev,
+					   struct resource *res)
+{
+	return -ENOENT;
+}
+#endif
+
+static int stm_get_stimulus_area(struct device *dev, struct resource *res)
+{
+	if (is_of_node(dev_fwnode(dev)))
+		return of_stm_get_stimulus_area(dev, res);
+	return -ENOENT;
+}
 
 static u32 stm_fundamental_data_size(struct stm_drvdata *drvdata)
 {
@@ -819,7 +834,7 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
 		return PTR_ERR(base);
 	drvdata->base = base;
 
-	ret = stm_get_resource_byname(np, "stm-stimulus-base", &ch_res);
+	ret = stm_get_stimulus_area(dev, &ch_res);
 	if (ret)
 		return ret;
 	drvdata->chs.phys = ch_res.start;
-- 
2.7.4


  parent reply	other threads:[~2019-05-07 10:55 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-07 10:52 [PATCH v3 00/30] coresight: Support for ACPI bindings Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 01/30] coresight: funnel: Clean up device book keeping Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 02/30] coresight: replicator: Cleanup device tracking Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 03/30] coresight: tmc: Clean up device specific data Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 04/30] coresight: catu: Cleanup " Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 05/30] coresight: tpiu: Clean up " Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 06/30] coresight: stm: Cleanup " Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 07/30] coresight: etm: Clean up " Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 08/30] coresight: etb10: " Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 09/30] coresight: Use coresight device names for sinks in PMU attribute Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 10/30] coresight: Rename of_coresight to coresight-platform Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 11/30] coresight: etm3x: Rearrange cp14 access detection Suzuki K Poulose
2019-05-07 10:52 ` Suzuki K Poulose [this message]
2019-05-07 10:52 ` [PATCH v3 13/30] coresight: tmc-etr: Rearrange probing default buffer size Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 14/30] coresight: platform: Make memory allocation helper generic Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 15/30] coresight: Make sure device uses DT for obsolete compatible check Suzuki K Poulose
2019-05-13 16:18   ` Mathieu Poirier
2019-05-07 10:52 ` [PATCH v3 16/30] coresight: Introduce generic platform data helper Suzuki K Poulose
2019-05-13 16:39   ` Mathieu Poirier
2019-05-07 10:52 ` [PATCH v3 17/30] coresight: Make device to CPU mapping generic Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 18/30] coresight: Remove cpu field from platform data Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 19/30] coresight: Remove name from platform description Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 20/30] coresight: Cleanup coresight_remove_conns Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 21/30] coresight: Reuse platform data structure for connection tracking Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 22/30] coresight: Rearrange platform data probing Suzuki K Poulose
2019-05-13 17:21   ` Mathieu Poirier
2019-05-07 10:52 ` [PATCH v3 23/30] coresight: Add support for releasing platform specific data Suzuki K Poulose
2019-05-13 22:40   ` Mathieu Poirier
2019-05-07 10:52 ` [PATCH v3 24/30] coresight: platform: Use fwnode handle for device search Suzuki K Poulose
2019-05-13 17:39   ` Mathieu Poirier
2019-05-07 10:52 ` [PATCH v3 25/30] coresight: Use fwnode handle instead of device names Suzuki K Poulose
2019-05-13 17:59   ` Mathieu Poirier
2019-05-07 10:52 ` [PATCH v3 26/30] coresight: Use platform agnostic names Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 27/30] coresight: stm: ACPI support for parsing stimulus base Suzuki K Poulose
2019-05-07 10:52 ` [PATCH v3 28/30] coresight: Support for ACPI bindings Suzuki K Poulose
2019-05-13 22:28   ` Mathieu Poirier
2019-05-07 10:52 ` [PATCH v3 29/30] coresight: acpi: Support for AMBA components Suzuki K Poulose
2019-05-13 22:33   ` Mathieu Poirier
2019-05-07 10:52 ` [PATCH v3 30/30] coresight: acpi: Support for platform devices Suzuki K Poulose
2019-05-07 10:52 ` [TEST PATCH 31/30][EDK2] edk2-platform: juno: Update ACPI CoreSight Bindings Suzuki K Poulose

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