linux-kernel - [PATCH] mmc: sdhci_am654: Set HIGH_SPEED

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Date:   Thu, 16 Mar 2023 13:34:51 +0530
From:   Bhavya Kapoor <b-kapoor@...com>
To:     <linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>
CC:     <b-kapoor@...com>, <ulf.hansson@...aro.org>,
        <adrian.hunter@...el.com>, <vigneshr@...com>
Subject: [PATCH] mmc: sdhci_am654: Set HIGH_SPEED_ENA for SDR25 and SDR50

Timing Information in Datasheet assumes that HIGH_SPEED_ENA=1 should be
set for SDR25 and SDR50 modes. But sdhci_am654 driver clears
HIGH_SPEED_ENA register. Thus, Modify sdhci_am654 to not clear
HIGH_SPEED_ENA (HOST_CONTROL[2]) bit for SDR12 and SDR25 speed modes.

Fixes: e374e87538f4 ("mmc: sdhci_am654: Clear HISPD_ENA in some lower speed modes")
Signed-off-by: Bhavya Kapoor <b-kapoor@...com>
---
 drivers/mmc/host/sdhci_am654.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c
index 7ef828942df3..ac90e86bb0a0 100644
--- a/drivers/mmc/host/sdhci_am654.c
+++ b/drivers/mmc/host/sdhci_am654.c
@@ -351,8 +351,6 @@ static void sdhci_am654_write_b(struct sdhci_host *host, u8 val, int reg)
 		 */
 		case MMC_TIMING_SD_HS:
 		case MMC_TIMING_MMC_HS:
-		case MMC_TIMING_UHS_SDR12:
-		case MMC_TIMING_UHS_SDR25:
 			val &= ~SDHCI_CTRL_HISPD;
 		}
 	}
-- 
2.34.1