From: Suzuki K Poulose suzuki.poulose@arm.com
mainline inclusion from mainline-v6.5-rc1 commit 134124acb57f8ad59634d0e4530812205bf55250 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I89TNS CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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Drop ETM4X ACPI ID from the AMBA ACPI device list, and instead just move it inside the new ACPI devices list detected and used via platform driver.
Cc: "Rafael J. Wysocki" rafael@kernel.org Cc: Len Brown lenb@kernel.org Cc: Mathieu Poirier mathieu.poirier@linaro.org Cc: Suzuki K Poulose suzuki.poulose@arm.com Cc: Mike Leach mike.leach@linaro.org Cc: Leo Yan leo.yan@linaro.org Cc: Sudeep Holla sudeep.holla@arm.com Cc: Lorenzo Pieralisi lpieralisi@kernel.org Cc: linux-acpi@vger.kernel.org Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Sudeep Holla sudeep.holla@arm.com (for ACPI specific changes) Acked-by: "Rafael J. Wysocki" rafael@kernel.org Signed-off-by: Suzuki K Poulose suzuki.poulose@arm.com Signed-off-by: Anshuman Khandual anshuman.khandual@arm.com Tested-by: Tanmay Jagdale tanmay@marvell.com Link: https://lore.kernel.org/r/20230710062500.45147-7-anshuman.khandual@arm.com Signed-off-by: Junhao He hejunhao3@huawei.com --- drivers/acpi/acpi_amba.c | 1 - drivers/hwtracing/coresight/coresight-etm4x-core.c | 10 ++++++++++ 2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/acpi_amba.c b/drivers/acpi/acpi_amba.c index ab8a4e0191b1..a681929bba29 100644 --- a/drivers/acpi/acpi_amba.c +++ b/drivers/acpi/acpi_amba.c @@ -21,7 +21,6 @@
static const struct acpi_device_id amba_id_list[] = { {"ARMH0061", 0}, /* PL061 GPIO Device */ - {"ARMHC500", 0}, /* ARM CoreSight ETM4x */ {"ARMHC501", 0}, /* ARM CoreSight ETR */ {"ARMHC502", 0}, /* ARM CoreSight STM */ {"ARMHC503", 0}, /* ARM CoreSight Debug */ diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index a9bf84c40b9e..7f0f78868e9f 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -3,6 +3,7 @@ * Copyright (c) 2014, The Linux Foundation. All rights reserved. */
+#include <linux/acpi.h> #include <linux/bitops.h> #include <linux/kernel.h> #include <linux/moduleparam.h> @@ -2222,12 +2223,21 @@ 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 */ + {} +}; +MODULE_DEVICE_TABLE(acpi, etm4x_acpi_ids); +#endif + static struct platform_driver etm4_platform_driver = { .probe = etm4_probe_platform_dev, .remove = etm4_remove_platform_dev, .driver = { .name = "coresight-etm4x", .of_match_table = etm4_sysreg_match, + .acpi_match_table = ACPI_PTR(etm4x_acpi_ids), .suppress_bind_attrs = true, .pm = &etm4_dev_pm_ops, },