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- From 81fdc4983e33ef01935a9bf01187951aad34e2ac Mon Sep 17 00:00:00 2001
- From: Chaotian Jing <[email protected]>
- Date: Mon, 16 Oct 2017 09:46:39 +0800
- Subject: [PATCH 160/224] mmc: mediatek: perfer to use rise edge latching for
- cmd line
- data lines have applied to perfer to use rise edge, also need
- apply it to cmd line.
- Signed-off-by: Chaotian Jing <[email protected]>
- Tested-by: Sean Wang <[email protected]>
- Signed-off-by: Ulf Hansson <[email protected]>
- ---
- drivers/mmc/host/mtk-sd.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
- --- a/drivers/mmc/host/mtk-sd.c
- +++ b/drivers/mmc/host/mtk-sd.c
- @@ -1550,7 +1550,8 @@ static int msdc_tune_response(struct mmc
- }
- final_rise_delay = get_best_delay(host, rise_delay);
- /* if rising edge has enough margin, then do not scan falling edge */
- - if (final_rise_delay.maxlen >= 12 && final_rise_delay.start < 4)
- + if (final_rise_delay.maxlen >= 12 ||
- + (final_rise_delay.start == 0 && final_rise_delay.maxlen >= 4))
- goto skip_fall;
-
- sdr_set_bits(host->base + MSDC_IOCON, MSDC_IOCON_RSPL);
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