linux-kernel - [PATCH 2/2] mmc: mmc_spi: enable Highspeed for above 25MHz

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Message-ID: <5eaae8e215d84dd3a4f7e09782478a29@hyperstone.com>
Date:   Thu, 31 Mar 2022 07:29:37 +0000
From:   Christian Löhle <CLoehle@...erstone.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        "andriy.shevchenko@...ux.intel.com" 
        <andriy.shevchenko@...ux.intel.com>,
        Christian Löhle <CLoehle@...erstone.com>
CC:     "adrian.hunter@...el.com" <adrian.hunter@...el.com>,
        "digetx@...il.com" <digetx@...il.com>,
        "avri.altman@....com" <avri.altman@....com>
Subject: [PATCH 2/2] mmc: mmc_spi: enable Highspeed for above 25MHz

Any setup supporting more than 25MHz is able to utilize
highspeed, so enable it even when not explicitly specified.

Signed-off-by: Christian Loehle <cloehle@...erstone.com>
---
 drivers/mmc/host/mmc_spi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 106dd204b1a7..0a74c2f55542 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1378,6 +1378,9 @@ static int mmc_spi_probe(struct spi_device *spi)
 	mmc->f_min = 400000;
 	mmc->f_max = spi->max_speed_hz;
 
+	if (mmc->f_max > 25000000)
+		mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
+
 	host = mmc_priv(mmc);
 	host->mmc = mmc;
 	host->spi = spi;
-- 
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