sdhci_send_tuning uses mmc->ios.bus_width to determine the block size.
Without this patch the block size would be set incorrectly when the
bus_width == 8 which results in tuning failing.

Signed-off-by: Raul E Rangel <[email protected]>
---

 drivers/mmc/host/sdhci-pci-o2micro.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c 
b/drivers/mmc/host/sdhci-pci-o2micro.c
index b29bf4e7dcb48..dd21315922c87 100644
--- a/drivers/mmc/host/sdhci-pci-o2micro.c
+++ b/drivers/mmc/host/sdhci-pci-o2micro.c
@@ -115,6 +115,7 @@ static int sdhci_o2_execute_tuning(struct mmc_host *mmc, 
u32 opcode)
         */
        if (mmc->ios.bus_width == MMC_BUS_WIDTH_8) {
                current_bus_width = mmc->ios.bus_width;
+               mmc->ios.bus_width = MMC_BUS_WIDTH_4;
                sdhci_set_bus_width(host, MMC_BUS_WIDTH_4);
        }
 
@@ -126,8 +127,10 @@ static int sdhci_o2_execute_tuning(struct mmc_host *mmc, 
u32 opcode)
 
        sdhci_end_tuning(host);
 
-       if (current_bus_width == MMC_BUS_WIDTH_8)
+       if (current_bus_width == MMC_BUS_WIDTH_8) {
+               mmc->ios.bus_width = MMC_BUS_WIDTH_8;
                sdhci_set_bus_width(host, current_bus_width);
+       }
 
        host->flags &= ~SDHCI_HS400_TUNING;
        return 0;
-- 
2.22.0.rc2.383.gf4fbbf30c2-goog

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