mmc: renesas_sdhi: drop local flag for tuning

The MMC core has now a generic check if some tuning is in progress. Its
protected area is a bit larger than the custom one in this driver but we
concluded that this works equally well for the intended case. So, drop
the local flag and switch to the generic one.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20200922172253.4458-1-wsa@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/renesas_sdhi.h b/drivers/mmc/host/renesas_sdhi.h
index 24958de..cb962c7 100644 (file)
--- a/drivers/mmc/host/renesas_sdhi.h
+++ b/drivers/mmc/host/renesas_sdhi.h
@@ -63,7 +63,6 @@ struct renesas_sdhi {
        u32 scc_tappos_hs400;
        const u8 *adjust_hs400_calib_table;
        bool needs_adjust_hs400;
-       bool doing_tune;
 
        /* Tuning values: 1 for success, 0 for failure */
        DECLARE_BITMAP(taps, BITS_PER_LONG);

diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index d621a4a..20e5eb6 100644 (file)
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -581,7 +581,6 @@ static int renesas_sdhi_select_tuning(struct tmio_mmc_host *host)
        unsigned int taps_size = priv->tap_num * 2, min_tap_row;
        unsigned long *bitmap;
 
-       priv->doing_tune = false;
        sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_RVSREQ, 0);
 
        /*
@@ -656,7 +655,6 @@ static int renesas_sdhi_execute_tuning(struct mmc_host *mmc, u32 opcode)
                return -EINVAL;
        }
 
-       priv->doing_tune = true;
        bitmap_zero(priv->taps, priv->tap_num * 2);
        bitmap_zero(priv->smpcmp, priv->tap_num * 2);
 
@@ -765,7 +763,7 @@ static bool renesas_sdhi_check_scc_error(struct tmio_mmc_host *host)
            !(host->mmc->ios.timing == MMC_TIMING_MMC_HS400 && !use_4tap))
                return false;
 
-       if (mmc_doing_retune(host->mmc) || priv->doing_tune)
+       if (mmc_doing_tune(host->mmc))
                return false;
 
        if (sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL) &