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authorPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>2024-03-26 12:01:20 +0300
committerVinod Koul <vkoul@kernel.org>2024-04-05 14:49:15 +0300
commitbc13cf3f6e63dd708ccd160a28e6bb696af7e9f6 (patch)
treef0270ec3b90631b1bb64e9b010dd5b30242c345f /drivers/soundwire/cadence_master.c
parent59401c3c08e1a306e29a8d6c826685e2c5c6c794 (diff)
downloadlinux-bc13cf3f6e63dd708ccd160a28e6bb696af7e9f6.tar.xz
soundwire: clarify maximum allowed address
The existing code sets the maximum address at 0x80000000, which is not completely accurate. The last 2 Gbytes are indeed reserved, but so are the 896 Mbytes just before. The maximum address which can be used with paging or BRA is 0x47FFFFFF per Table 131 of the SoundWire 1.2.1 specification. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20240326090122.1051806-6-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire/cadence_master.c')
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