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8d09a13386
The register region is ioremap'ed in the tmio_mmc_host_probe(), i.e. drivers cannot get access to the hardware before mmc_add_host(). Actually, renesas_sdhi_core.c reads out the CTL_VERSION register to complete the platform-specific settings. However, at this point, the MMC host is already running. Move the register ioremap to tmio_mmc_host_alloc() so that drivers can perform platform-specific settings between tmio_mmc_host_alloc() and tmio_mmc_host_probe(). I changed tmio_mmc_host_alloc() to return an error pointer to propagate the return code from devm_ioremap_resource(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> |
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| Kconfig | ||
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