tmakin/tegra-linux-noble
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

pinctrl: renesas: rzg2l: Limit 2.5V power supply to Ethernet interfaces

Browse Source 
BugLink: https://bugs.launchpad.net/bugs/2073603

[ Upstream commit cd27553b0dee6fdc4a2535ab9fc3c8fbdd811d13 ]

The RZ/G3S SoC supports configurable supply voltages for several of its
I/O interfaces. All of these interfaces support both 1.8V and 3.3V
supplies, but only the Ethernet and XSPI interfaces support a 2.5V
supply.

Voltage selection for the XSPI interface is not yet supported, so this
leaves only the Ethernet interfaces currently supporting selection of a
2.5V supply. So we need to return an error if there is an attempt to
select a 2.5V supply for any non-Ethernet interface.

Fixes: 51996952b8 ("pinctrl: renesas: rzg2l: Add support to select power source for Ethernet pins")
Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240417114132.6605-1-paul.barker.ct@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Portia Stephens <portia.stephens@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Paul Barker
2024-04-17 12:41:31 +01:00
committed by Roxana Nicolescu
parent 5b3c2a874e
commit 5d5733b125
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/pinctrl/renesas/pinctrl-rzg2l.c
+2
View File
@@ -668,6 +668,8 @@ static int rzg2l_set_power_source(struct rzg2l_pinctrl *pctrl, u32 pin, u32 caps
val = PVDD_1800;
break;
case 2500:
if (!(caps & (PIN_CFG_IO_VMC_ETH0 | PIN_CFG_IO_VMC_ETH1)))
return -EINVAL;
val = PVDD_2500;
break;
case 3300: