Commit 64416ef0 authored by Wolfram Sang's avatar Wolfram Sang Committed by Geert Uytterhoeven

arm64: dts: renesas: r8a779f0: Fix SCIF "brg_int" clock

As serial communication requires a clean clock signal, the Serial
Communication Interfaces with FIFO (SCIF) are clocked by a clock that is
not affected by Spread Spectrum or Fractional Multiplication.

Hence change the clock input for the SCIF Baud Rate Generator internal
clock from the S0D3_PER clock to the SASYNCPERD1 clock (which has the
same clock rate), cfr. R-Car S4-8 Hardware User's Manual rev. 0.81.

Fixes: c62331e8 ("arm64: dts: renesas: Add Renesas R8A779F0 SoC support")
Fixes: 40753144 ("arm64: dts: renesas: r8a779f0: Add SCIF nodes")
Reported-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20221103143440.46449-5-wsa+renesas@sang-engineering.comSigned-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
parent a5101ef1
......@@ -657,7 +657,7 @@ scif0: serial@e6e60000 {
reg = <0 0xe6e60000 0 64>;
interrupts = <GIC_SPI 249 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 702>,
<&cpg CPG_CORE R8A779F0_CLK_S0D3_PER>,
<&cpg CPG_CORE R8A779F0_CLK_SASYNCPERD1>,
<&scif_clk>;
clock-names = "fck", "brg_int", "scif_clk";
dmas = <&dmac0 0x51>, <&dmac0 0x50>,
......@@ -674,7 +674,7 @@ scif1: serial@e6e68000 {
reg = <0 0xe6e68000 0 64>;
interrupts = <GIC_SPI 250 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 703>,
<&cpg CPG_CORE R8A779F0_CLK_S0D3_PER>,
<&cpg CPG_CORE R8A779F0_CLK_SASYNCPERD1>,
<&scif_clk>;
clock-names = "fck", "brg_int", "scif_clk";
dmas = <&dmac0 0x53>, <&dmac0 0x52>,
......@@ -691,7 +691,7 @@ scif3: serial@e6c50000 {
reg = <0 0xe6c50000 0 64>;
interrupts = <GIC_SPI 252 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 704>,
<&cpg CPG_CORE R8A779F0_CLK_S0D3_PER>,
<&cpg CPG_CORE R8A779F0_CLK_SASYNCPERD1>,
<&scif_clk>;
clock-names = "fck", "brg_int", "scif_clk";
dmas = <&dmac0 0x57>, <&dmac0 0x56>,
......@@ -708,7 +708,7 @@ scif4: serial@e6c40000 {
reg = <0 0xe6c40000 0 64>;
interrupts = <GIC_SPI 253 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 705>,
<&cpg CPG_CORE R8A779F0_CLK_S0D3_PER>,
<&cpg CPG_CORE R8A779F0_CLK_SASYNCPERD1>,
<&scif_clk>;
clock-names = "fck", "brg_int", "scif_clk";
dmas = <&dmac0 0x59>, <&dmac0 0x58>,
......
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