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You can see another patch [sg2042-dwcmshc], which I am working on to add SG2042 to sdhci-of-dwcmshc. By the way, although I believe this patch only optimizes the framework of the code and does not change the specific logic, simple verification is certainly better. Since I don't have rk35xx/th1520 related hardware, it would be greatly appreciated if someone could help verify it. Tested-by: Drew Fustini # TH1520 --- Changes in v3: The patch series is based on latest 'next' branch of [mmc-git]. Improved the dirvier code as per comments from Adrian Hunter. Define new structure for dwcmshc platform data/ops. In addition, I organized the code and classified the helper functions. Since the file changes were relatively large (though the functional logic did not change much), I split the original patch into four for the convenience of review. Changes in v2: Rebased on latest 'next' branch of [mmc-git]. You can simply review or test the patches at the link [2]. Changes in v1: The patch series is based on v6.9-rc1. You can simply review or test the patches at the link [1]. Link: https://lore.kernel.org/linux-mmc/cover.1713258948.git.unicorn_wang@outlook.com/ [sg2042-dwcmshc] Link: git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git [mmc-git] Link: https://lore.kernel.org/linux-mmc/cover.1713257181.git.unicorn_wang@outlook.com/ [1] Link: https://lore.kernel.org/linux-mmc/cover.1714270290.git.unicorn_wang@outlook.com/ [2] --- Chen Wang (4): mmc: sdhci-of-dwcmshc: adjust positions of helper routines mmc: sdhci-of-dwcmshc: unify the naming of soc helper functions mmc: sdhci-of-dwcmshc: extract init function for rk35xx/th1520 mmc: sdhci-of-dwcmshc: add callback functions for dwcmshc drivers/mmc/host/sdhci-of-dwcmshc.c | 598 ++++++++++++++++------------ 1 file changed, 339 insertions(+), 259 deletions(-) base-commit: d6cd1206ffaaa890e81f5d1134856d9edd406ec6