Re: [PATCHv2 03/10] mmc: dw_mmc: change the DW_MCI_FREQ_MIN from 400K to 100K
From: Shawn Lin <hidden>
Date: 2016-11-16 09:06:04
Also in:
linux-mmc
在 2016/11/15 18:12, Jaehoon Chung 写道:
If there is no property "clock-freq-min-max", mmc->f_min should be set to 400K by default. But Some SoC can be used 100K. When 100K is used, MMC core will try to check from 400K to 100K. Reported-by: Shawn Lin <redacted> Signed-off-by: Jaehoon Chung <redacted> Tested-by: Heiko Stuebner <redacted>
It makes more sense that the original 400KHz, thanks for improving that. Reviewed-by: Shawn Lin <redacted>
quoted hunk
--- drivers/mmc/host/dw_mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 6c0c4c5..be36f48 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c@@ -54,7 +54,7 @@ #define DW_MCI_DMA_THRESHOLD 16 #define DW_MCI_FREQ_MAX 200000000 /* unit: HZ */ -#define DW_MCI_FREQ_MIN 400000 /* unit: HZ */ +#define DW_MCI_FREQ_MIN 100000 /* unit: HZ */ #define IDMAC_INT_CLR (SDMMC_IDMAC_INT_AI | SDMMC_IDMAC_INT_NI | \ SDMMC_IDMAC_INT_CES | SDMMC_IDMAC_INT_DU | \
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