Commit 538eca25 authored by Suzuki K Poulose's avatar Suzuki K Poulose Committed by Greg Kroah-Hartman
Browse files

coresight: tmc-etr: Rearrange probing default buffer size 



As we are about to refactor the platform specific handling,
make the default buffer size probing generic.

Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 18e46e11

drivers/hwtracing/coresight/coresight-tmc.c

+12 −9
Original line number Diff line number Diff line
@@ -378,6 +378,15 @@ static int tmc_etr_setup_caps(struct device *parent, u32 devid, void *dev_caps) 
	return rc;

}



static u32 tmc_etr_get_default_buffer_size(struct device *dev)

{

	u32 size;



	if (fwnode_property_read_u32(dev->fwnode, "arm,buffer-size", &size))

		size = SZ_1M;

	return size;

}



static int tmc_probe(struct amba_device *adev, const struct amba_id *id)

{

	int ret = 0;
@@ -423,16 +432,10 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id) 
	/* This device is not associated with a session */

	drvdata->pid = -1;



	if (drvdata->config_type == TMC_CONFIG_TYPE_ETR) {

		if (np)

			ret = of_property_read_u32(np,

						   "arm,buffer-size",

						   &drvdata->size);

		if (ret)

			drvdata->size = SZ_1M;

	} else {

	if (drvdata->config_type == TMC_CONFIG_TYPE_ETR)

		drvdata->size = tmc_etr_get_default_buffer_size(dev);

	else

		drvdata->size = readl_relaxed(drvdata->base + TMC_RSZ) * 4;

	}



	desc.pdata = pdata;

	desc.dev = dev;

CRA Git | Maintained and supported by SUSTech CRA and CCSE