From: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
[ Upstream commit 02c96ed9e4cd1f47bfcd10296fec6b0b69d6b3c6 ]
As per RZ/G2L HW(Rev.1.10) manual, reset monitor register value 0 means
reset signal is not applied (deassert state) and 1 means reset signal
is applied (assert state).
reset_control_status() expects a positive value if the reset line is
asserted. But rzg2l_cpg_status function returns zero for asserted
state.
This patch fixes the issue by adding double inverted logic, so that
reset_control_status returns a positive value if the reset line is
asserted.
Fixes: ef3c613ccd68 ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC")
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220531071657.104121-1-biju.das.jz@xxxxxxxxxxxxxx
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/clk/renesas/rzg2l-cpg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c
index e2999ab2b53c..3ff6ecd61756 100644
--- a/drivers/clk/renesas/rzg2l-cpg.c
+++ b/drivers/clk/renesas/rzg2l-cpg.c
@@ -1180,7 +1180,7 @@ static int rzg2l_cpg_status(struct reset_controller_dev *rcdev,
s8 monbit = info->resets[id].monbit;
if (info->has_clk_mon_regs) {
- return !(readl(priv->base + CLK_MRST_R(reg)) & bitmask);
+ return !!(readl(priv->base + CLK_MRST_R(reg)) & bitmask);
} else if (monbit >= 0) {
u32 monbitmask = BIT(monbit);
--
2.35.1
