coresight: trbe: Add a representative coresight_platform_data for TRBE
TRBE coresight devices do not need regular connections information, as the paths get built between all percpu source and their respective percpu sink devices. Please refer 'commit 2cd87a7b ("coresight: core: Add support for dedicated percpu sinks")' which added support for percpu sink devices. coresight_register() expect device connections via the platform_data. TRBE devices do not have any graph connections and thus is empty. With upcoming ACPI support for TRBE, we do not get a real acpi_device and thus coresight_get_platform_dat() will end up in failures. Hence this allocates a zeroed coresight_platform_data structure and assigns that back into the device. Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by:Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by:
Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230829135405.1159449-2-anshuman.khandual@arm.com
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