mmc: sdhci-esdhc-imx: Propagate ESDHC_FLAG_HS400* only on 8bit bus

The core issues the warning "drop HS400 support since no 8-bit bus" when
one of the ESDHC_FLAG_HS400* flags is set on a non 8bit capable host. To
avoid this warning set these flags only on hosts that actually can do
8bit, i.e. have bus-width = <8> set in the device tree.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Fixes: 029e2476f9e6 ("mmc: sdhci-esdhc-imx: add HS400_ES support for i.MX8QXP")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221013093248.2220802-1-s.hauer@pengutronix.de
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 55981b0..747df79 100644 (file)
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1660,6 +1660,10 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
                host->mmc_host_ops.execute_tuning = usdhc_execute_tuning;
        }
 
+       err = sdhci_esdhc_imx_probe_dt(pdev, host, imx_data);
+       if (err)
+               goto disable_ahb_clk;
+
        if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING)
                sdhci_esdhc_ops.platform_execute_tuning =
                                        esdhc_executing_tuning;
@@ -1667,13 +1671,15 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
        if (imx_data->socdata->flags & ESDHC_FLAG_ERR004536)
                host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;
 
-       if (imx_data->socdata->flags & ESDHC_FLAG_HS400)
+       if (host->caps & MMC_CAP_8_BIT_DATA &&
+           imx_data->socdata->flags & ESDHC_FLAG_HS400)
                host->mmc->caps2 |= MMC_CAP2_HS400;
 
        if (imx_data->socdata->flags & ESDHC_FLAG_BROKEN_AUTO_CMD23)
                host->quirks2 |= SDHCI_QUIRK2_ACMD23_BROKEN;
 
-       if (imx_data->socdata->flags & ESDHC_FLAG_HS400_ES) {
+       if (host->caps & MMC_CAP_8_BIT_DATA &&
+           imx_data->socdata->flags & ESDHC_FLAG_HS400_ES) {
                host->mmc->caps2 |= MMC_CAP2_HS400_ES;
                host->mmc_host_ops.hs400_enhanced_strobe =
                                        esdhc_hs400_enhanced_strobe;
@@ -1695,10 +1701,6 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
                        goto disable_ahb_clk;
        }
 
-       err = sdhci_esdhc_imx_probe_dt(pdev, host, imx_data);
-       if (err)
-               goto disable_ahb_clk;
-
        sdhci_esdhc_imx_hwinit(host);
 
        err = sdhci_add_host(host);