mmc: mtk-sd: add a dts property cd-active-high for builtin-cd mode
This patch adds a dts property cd-active-high for builtin-cd mode to make
it configurable instead of using hardcoded active-low.
diff --git a/drivers/mmc/mtk-sd.c b/drivers/mmc/mtk-sd.c
index 7069fe8..ffd647f 100644
--- a/drivers/mmc/mtk-sd.c
+++ b/drivers/mmc/mtk-sd.c
@@ -270,6 +270,7 @@
/* whether to use gpio detection or built-in hw detection */
bool builtin_cd;
+ bool cd_active_high;
/* card detection / write protection GPIOs */
#if CONFIG_IS_ENABLED(DM_GPIO)
@@ -852,7 +853,9 @@
if (host->builtin_cd) {
val = readl(&host->base->msdc_ps);
- return !(val & MSDC_PS_CDSTS);
+ val = !!(val & MSDC_PS_CDSTS);
+
+ return !val ^ host->cd_active_high;
}
#if CONFIG_IS_ENABLED(DM_GPIO)
@@ -1355,6 +1358,7 @@
host->latch_ck = dev_read_u32_default(dev, "latch-ck", 0);
host->r_smpl = dev_read_u32_default(dev, "r_smpl", 0);
host->builtin_cd = dev_read_u32_default(dev, "builtin-cd", 0);
+ host->cd_active_high = dev_read_bool(dev, "cd-active-high");
return 0;
}