lkml.org 
[lkml]   [2022]   [Oct]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH V2] mmc: sdhci-sprd: Fix minimum clock limit
Date
From: Wenchao Chen <wenchao.chen@unisoc.com>

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@unisoc.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
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
\
 
 \ /
  Last update: 2022-10-11 12:50    [W:0.825 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site