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mmc: tegra: Remove tegra_sdhci_writew() from tegra210_sdhci_ops 

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 <avienamo@nvidia.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Aapo Vienamo 2018-08-30 18:06:25 +03:00 committed by Ulf Hansson
parent 1070e83a34
commit f6a447fafa
1 changed files with 0 additions and 1 deletions
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1
drivers/mmc/host/sdhci-tegra.c
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@ -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,