From c18c1f103503981bfbb3b9c3cdf3d2ea14f8e010 Mon Sep 17 00:00:00 2001 From: Rui Feng Date: Wed, 15 Apr 2020 10:37:17 +0800 Subject: misc: rtsx: Improve compatibility for rts5261 Change initial clock to improve compatibility for rts5261 Signed-off-by: Rui Feng Link: https://lore.kernel.org/r/1586918237-3016-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Greg Kroah-Hartman --- drivers/misc/cardreader/rts5261.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers/misc/cardreader') diff --git a/drivers/misc/cardreader/rts5261.c b/drivers/misc/cardreader/rts5261.c index 78c3b1d424c3..4ed86122eaec 100644 --- a/drivers/misc/cardreader/rts5261.c +++ b/drivers/misc/cardreader/rts5261.c @@ -639,8 +639,13 @@ int rts5261_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock, if (initial_mode) { /* We use 250k(around) here, in initial stage */ - clk_divider = SD_CLK_DIVIDE_128; - card_clock = 30000000; + if (is_version(pcr, PID_5261, IC_VER_D)) { + clk_divider = SD_CLK_DIVIDE_256; + card_clock = 60000000; + } else { + clk_divider = SD_CLK_DIVIDE_128; + card_clock = 30000000; + } } else { clk_divider = SD_CLK_DIVIDE_0; } -- cgit v1.2.3