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Message-ID: <3c326e7c-4f82-2f40-d92d-8928d8cf773b@arm.com>
Date: Mon, 11 Sep 2023 10:21:17 +0100
From: Suzuki K Poulose <suzuki.poulose@....com>
To: Ruidong Tian <tianruidong@...ux.alibaba.com>,
linux-kernel@...r.kernel.org
Cc: james.clark@....com, coresight@...ts.linaro.org,
mike.leach@...aro.org, alexander.shishkin@...ux.intel.com,
linux-arm-kernel@...ts.infradead.org,
Jay Chen <jkchen@...ux.alibaba.com>
Subject: Re: [PATCH] coresight: etm4x: Add ACPI id for THEAD YiTian SOC
On 11/09/2023 08:25, Ruidong Tian wrote:
> From: Jay Chen <jkchen@...ux.alibaba.com>
>
> Add support for detcting ETE device of THEAD YiTian SOC.
>
> Signed-off-by: Jay Chen <jkchen@...ux.alibaba.com>
> Signed-off-by: Ruidong Tian <tianruidong@...ux.alibaba.com>
> ---
> drivers/hwtracing/coresight/coresight-etm4x-core.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
> index 77b0271ce6eb..329bb554b168 100644
> --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
> +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
> @@ -2351,6 +2351,7 @@ static const struct of_device_id etm4_sysreg_match[] = {
> #ifdef CONFIG_ACPI
> static const struct acpi_device_id etm4x_acpi_ids[] = {
> {"ARMHC500", 0}, /* ARM CoreSight ETM4x */
> + {"BABA6000", 0 }, /* THEAD CoreSight ETE */
Why don't we use ARMHC500 for the ETE ? See :
https://developer.arm.com/documentation/den0067/latest/
Suzuki
> {}
> };
> MODULE_DEVICE_TABLE(acpi, etm4x_acpi_ids);
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