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authorRui Feng <rui_feng@realsil.com.cn>2020-11-03 12:55:21 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2020-11-16 13:59:30 +0300
commit5eefe22d223573a32afb9be7e53bff2acff6423a (patch)
tree37ac2c05fdcff392c79c271580fb01a367aea58b /drivers/misc/cardreader
parent1672617d512880f31d1d43ca0eb0d13d50b8c680 (diff)
downloadlinux-5eefe22d223573a32afb9be7e53bff2acff6423a.tar.xz
misc: rtsx: Fix clock timing for RTS5261
This patch fix clock timing for RTS5261, using 256 divide for the version higher than version C. Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/1604397321-3026-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/misc/cardreader')
-rw-r--r--drivers/misc/cardreader/rts5261.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/misc/cardreader/rts5261.c b/drivers/misc/cardreader/rts5261.c
index 2ada973a0f33..6c64dade8e1a 100644
--- a/drivers/misc/cardreader/rts5261.c
+++ b/drivers/misc/cardreader/rts5261.c
@@ -649,7 +649,7 @@ int rts5261_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock,
if (initial_mode) {
/* We use 250k(around) here, in initial stage */
- if (is_version(pcr, PID_5261, IC_VER_D)) {
+ if (is_version_higher_than(pcr, PID_5261, IC_VER_C)) {
clk_divider = SD_CLK_DIVIDE_256;
card_clock = 60000000;
} else {
@@ -700,7 +700,7 @@ int rts5261_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock,
div++;
}
- n = (n / 2);
+ n = (n / 2) - 1;
pcr_dbg(pcr, "n = %d, div = %d\n", n, div);
ssc_depth = depth[ssc_depth];