This patch adds a dts property cd-active-high for builtin-cd mode to make
it configurable instead of using hardcoded active-low.
Signed-off-by: Weijie Gao <weijie....@mediatek.com>
---
drivers/mmc/mtk-sd.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/mtk-sd.c b/drivers/mmc/mtk-sd.c
index 7069fe8948..814a1b5fe9 100644
--- a/drivers/mmc/mtk-sd.c
+++ b/drivers/mmc/mtk-sd.c
@@ -270,6 +270,7 @@ struct msdc_host {
/* 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 +853,12 @@ static int msdc_ops_get_cd(struct udevice *dev)
if (host->builtin_cd) {
val = readl(&host->base->msdc_ps);
- return !(val & MSDC_PS_CDSTS);
+ val &= MSDC_PS_CDSTS;
+
+ if (!host->cd_active_high)
+ val = !val;
+
+ return val;
}
#if CONFIG_IS_ENABLED(DM_GPIO)
@@ -1355,6 +1361,7 @@ static int msdc_ofdata_to_platdata(struct udevice *dev)
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;
}
--
2.17.1
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