shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 10:58:48 +09:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
[ Upstream commit 64416ef0b0 ]

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: c62331e822 ("arm64: dts: renesas: Add Renesas R8A779F0 SoC support")
Fixes: 4075314425 ("arm64: dts: renesas: r8a779f0: Add SCIF nodes")
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20221103143440.46449-5-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wolfram Sang
2022-11-03 15:34:40 +01:00
committed by Greg Kroah-Hartman
parent e4d95cd9fb
commit 4bc03f485a
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm64/boot/dts/renesas/r8a779f0.dtsi
View File

@@ -657,7 +657,7 @@
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 @@
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 @@
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 @@
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>,