mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-07-22 04:37:32 -04:00
949af038b6
Add support for UFS v5.0 JEDEC attributes qTxEQGnSettings and wTxEQGnSettingsExt to enable persistent storage and retrieval of optimal TX Equalization settings. This provides a fast-path for TX Equalization by reusing previously stored optimal settings, avoiding TX Equalization Training (EQTR) procedures during subsequent Power Mode changes. When no valid TX Equalization settings are found, fall back to full TX EQTR procedures and optionally save the results for future use. The validity of one set of TX Equalization settings is indicated by Bit[15] in wTxEQGnSettingsExt. Signed-off-by: Can Guo <can.guo@oss.qualcomm.com> Reviewed-by: Peter Wang <peter.wang@mediatek.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Link: https://patch.msgid.link/20260424151420.111675-3-can.guo@oss.qualcomm.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>