tegra_sdhci_writew() defers the write to SDHCI_TRANSFER_MODE until SDHCI_COMMAND is written. This is not necessary on Tegra210 and Tegra186 and it breaks read-modify-write operations on SDHCI_TRANSFER_MODE because writes to SDHCI_TRANSFER_MODE aren't visible until SDHCI_COMMAND has been written to. This results in tuning failures on Tegra210.
Signed-off-by: Aapo Vienamo <[email protected]> --- drivers/mmc/host/sdhci-tegra.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index f68557a01d5d..0bdce437e752 100644 --- a/drivers/mmc/host/sdhci-tegra.c +++ b/drivers/mmc/host/sdhci-tegra.c @@ -834,7 +834,6 @@ static const struct sdhci_tegra_soc_data soc_data_tegra124 = { static const struct sdhci_ops tegra210_sdhci_ops = { .get_ro = tegra_sdhci_get_ro, .read_w = tegra_sdhci_readw, - .write_w = tegra_sdhci_writew, .write_l = tegra_sdhci_writel, .set_clock = tegra_sdhci_set_clock, .set_bus_width = sdhci_set_bus_width, -- 2.18.0
