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mmc: tmio: reset the controller after power-up
This fixes two reported problems: 1. after a system resume the controller isn't functioning until a command runs on a timeout and a controller reset is performed. 2. if a card is ejected during a running write operation, its re-insertion isn't detected. Reported-by: Nguyen Viet Dung <nv-dung@jinso.co.jp> Reported-by: Nguyen Hong Ky <nh-ky@jinso.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Tested-by: Nguyen Viet Dung <nv-dung@jinso.co.jp> Tested-by: Nguyen Hong Ky <nh-ky@jinso.co.jp> Signed-off-by: Chris Ball <cjb@laptop.org>
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1 changed files with 2 additions and 1 deletions
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@ -867,6 +867,8 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
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host->resuming = false;
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}
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}
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if (host->power == TMIO_MMC_OFF_STOP)
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tmio_mmc_reset(host);
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tmio_mmc_set_clock(host, ios->clock);
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if (host->power == TMIO_MMC_OFF_STOP)
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/* power up SD card and the bus */
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@ -1186,7 +1188,6 @@ int tmio_mmc_host_runtime_resume(struct device *dev)
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struct mmc_host *mmc = dev_get_drvdata(dev);
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struct tmio_mmc_host *host = mmc_priv(mmc);
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tmio_mmc_reset(host);
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tmio_mmc_enable_dma(host, true);
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return 0;
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