diff options
| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2019-05-22 11:34:46 +0100 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2019-06-04 11:46:52 -0600 |
| commit | daa60c7babc7b3c4e897d6a250a8339eb6cc5bf2 (patch) | |
| tree | 1d93163cf81d31d5046ab1ffad2b8e44165b9d9c | |
| parent | 73df08da2cc3c63090b27c36a6991d78301da34c (diff) | |
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: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c index 3b39f43c583d..9c5e615c1486 100644 --- a/drivers/hwtracing/coresight/coresight-tmc.c +++ b/drivers/hwtracing/coresight/coresight-tmc.c @@ -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; |