iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

misc: rtsx: Fix clock timing for RTS5261

Browse Source 
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>
This commit is contained in:
Rui Feng 2020-11-03 17:55:21 +08:00 committed by Ulf Hansson
parent 1672617d51
commit 5eefe22d22
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/misc/cardreader/rts5261.c
View File

@ -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];