[PATCH v4 6/7] arm64: dts: mediatek: mt8173: Drop VDEC_SYS reg from decoder

From: Nícolas F. R. A. Prado
Date: Tue Jun 27 2023 - 17:47:08 EST


Remove the VDEC_SYS register space from the decoder, so that the node
address becomes that of VDEC_MISC, solving the long-standing conflicting
addresses between this node and the vdecsys clock-controller node:

arch/arm64/boot/dts/mediatek/mt8173.dtsi:1365.38-1369.5: Warning (unique_unit_address_if_enabled): /soc/clock-controller@16000000: duplicate unit-address (also used in node /soc/vcodec@16000000)

The driver makes use of this register space, however, so also add a
phandle to the VDEC_SYS syscon to maintain functionality.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>

---

Changes in v4:
- Added this commit

arch/arm64/boot/dts/mediatek/mt8173.dtsi | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index c47d7d900f28..cac4cd0a0320 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -1368,10 +1368,9 @@ vdecsys: clock-controller@16000000 {
#clock-cells = <1>;
};

- vcodec_dec: vcodec@16000000 {
+ vcodec_dec: vcodec@16020000 {
compatible = "mediatek,mt8173-vcodec-dec";
- reg = <0 0x16000000 0 0x100>, /* VDEC_SYS */
- <0 0x16020000 0 0x1000>, /* VDEC_MISC */
+ reg = <0 0x16020000 0 0x1000>, /* VDEC_MISC */
<0 0x16021000 0 0x800>, /* VDEC_LD */
<0 0x16021800 0 0x800>, /* VDEC_TOP */
<0 0x16022000 0 0x1000>, /* VDEC_CM */
@@ -1382,6 +1381,8 @@ vcodec_dec: vcodec@16000000 {
<0 0x16027000 0 0x800>, /* VDEC_HWQ */
<0 0x16027800 0 0x800>, /* VDEC_HWB */
<0 0x16028400 0 0x400>; /* VDEC_HWG */
+ reg-names = "misc", "ld", "top", "cm", "ad", "av", "pp",
+ "hwd", "hwq", "hwb", "hwg";
interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_LOW>;
iommus = <&iommu M4U_PORT_HW_VDEC_MC_EXT>,
<&iommu M4U_PORT_HW_VDEC_PP_EXT>,
@@ -1392,6 +1393,7 @@ vcodec_dec: vcodec@16000000 {
<&iommu M4U_PORT_HW_VDEC_VLD_EXT>,
<&iommu M4U_PORT_HW_VDEC_VLD2_EXT>;
mediatek,vpu = <&vpu>;
+ mediatek,vdecsys = <&vdecsys>;
power-domains = <&spm MT8173_POWER_DOMAIN_VDEC>;
clocks = <&apmixedsys CLK_APMIXED_VCODECPLL>,
<&topckgen CLK_TOP_UNIVPLL_D2>,
--
2.41.0