[PATCH V2] mmc: sdhci-sprd: Fix minimum clock limit
From: Wenchao Chen
Date: Tue Oct 11 2022 - 06:49:56 EST
From: Wenchao Chen <wenchao.chen@xxxxxxxxxx>
v1 -> v2:
- Address Adrian's suggestions
Our controller supports 100K. During the test, it was found that mmc_rescan
failed to scan the card at 400K, and did not try 300K, 200K, and 100K. After
modifying the minimum clock limit to 100K, the card scan was successful
Signed-off-by: Wenchao Chen <wenchao.chen@xxxxxxxxxx>
Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Fixes: fb8bd90f83c4 ("mmc: sdhci-sprd: Add Spreadtrum's initial host controller")
---
drivers/mmc/host/sdhci-sprd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c
index 46c55ab4884c..b92a408f138d 100644
--- a/drivers/mmc/host/sdhci-sprd.c
+++ b/drivers/mmc/host/sdhci-sprd.c
@@ -309,7 +309,7 @@ static unsigned int sdhci_sprd_get_max_clock(struct sdhci_host *host)
static unsigned int sdhci_sprd_get_min_clock(struct sdhci_host *host)
{
- return 400000;
+ return 100000;
}
static void sdhci_sprd_set_uhs_signaling(struct sdhci_host *host,
--
2.17.1