arm64: zynqmp: Disable Tri-state for SDIO

Since the zynqmp pinctrl driver now includes support for the
tri-state registers, ensure that the pins needing output-enable
are correctly configured for SOMs.

Currently, there is an issue with the detection of the MMC for
the SOM kv260, resulting in the following error:
ZynqMP> mmc dev 1
Card did not respond to voltage select! : -110

To address this problem, configure the SDIO pins for output-enable
to enable MMC detection.

Signed-off-by: Tejas Bhumkar <tejas.arvind.bhumkar@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20240321085220.2920792-2-tejas.arvind.bhumkar@amd.com

diff --git a/arch/arm/dts/zynqmp-sck-kv-g-revA.dtso b/arch/arm/dts/zynqmp-sck-kv-g-revA.dtso
index 6d0d5c487d2e7aae178474befa54165239f61a0e..561b546e37f779aed9d3621f19964c73079c2490 100644 (file)
--- a/arch/arm/dts/zynqmp-sck-kv-g-revA.dtso
+++ b/arch/arm/dts/zynqmp-sck-kv-g-revA.dtso
@@ -342,6 +342,7 @@
                        slew-rate = <SLEW_RATE_SLOW>;
                        power-source = <IO_STANDARD_LVCMOS18>;
                        bias-disable;
+                       output-enable;
                };
 
                conf-cd {

diff --git a/arch/arm/dts/zynqmp-sck-kv-g-revB.dtso b/arch/arm/dts/zynqmp-sck-kv-g-revB.dtso
index a4b4465d2038f083eac82b95bb1bf06dee41fa2f..13876fb47db1d58de3d1ffa9a576a5e45eab451b 100644 (file)
--- a/arch/arm/dts/zynqmp-sck-kv-g-revB.dtso
+++ b/arch/arm/dts/zynqmp-sck-kv-g-revB.dtso
@@ -329,6 +329,7 @@
                        slew-rate = <SLEW_RATE_SLOW>;
                        power-source = <IO_STANDARD_LVCMOS18>;
                        bias-disable;
+                       output-enable;
                };
 
                conf-cd {