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clk: renesas: r8a779f0: Fix SCIF parent clocks
authorWolfram Sang <wsa+renesas@sang-engineering.com>
Thu, 3 Nov 2022 14:34:38 +0000 (15:34 +0100)
committerGeert Uytterhoeven <geert+renesas@glider.be>
Tue, 8 Nov 2022 13:23:59 +0000 (14:23 +0100)
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 parent clocks for the SCIF modules from the S0D12_PER
clock to the SASYNCPERD4 clock (which has the same clock rate), cfr.
R-Car S4-8 Hardware User's Manual rev. 0.81.

Fixes: 24aaff6a6ce4 ("clk: renesas: cpg-mssr: Add support for R-Car S4-8")
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20221103143440.46449-3-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
drivers/clk/renesas/r8a779f0-cpg-mssr.c patch | blob | history

diff --git a/drivers/clk/renesas/r8a779f0-cpg-mssr.c b/drivers/clk/renesas/r8a779f0-cpg-mssr.c
index fd1462425316fbd3d922b9dc693bb2af7ac4d197..800fdc104edd657ff2ef151ea0f8241d75870571 100644 (file)
--- a/drivers/clk/renesas/r8a779f0-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a779f0-cpg-mssr.c
@@ -144,10 +144,10 @@ static const struct mssr_mod_clk r8a779f0_mod_clks[] __initconst = {
        DEF_MOD("msiof3",       621,    R8A779F0_CLK_MSO),
        DEF_MOD("pcie0",        624,    R8A779F0_CLK_S0D2),
        DEF_MOD("pcie1",        625,    R8A779F0_CLK_S0D2),
-       DEF_MOD("scif0",        702,    R8A779F0_CLK_S0D12_PER),
-       DEF_MOD("scif1",        703,    R8A779F0_CLK_S0D12_PER),
-       DEF_MOD("scif3",        704,    R8A779F0_CLK_S0D12_PER),
-       DEF_MOD("scif4",        705,    R8A779F0_CLK_S0D12_PER),
+       DEF_MOD("scif0",        702,    R8A779F0_CLK_SASYNCPERD4),
+       DEF_MOD("scif1",        703,    R8A779F0_CLK_SASYNCPERD4),
+       DEF_MOD("scif3",        704,    R8A779F0_CLK_SASYNCPERD4),
+       DEF_MOD("scif4",        705,    R8A779F0_CLK_SASYNCPERD4),
        DEF_MOD("sdhi0",        706,    R8A779F0_CLK_SD0),
        DEF_MOD("sys-dmac0",    709,    R8A779F0_CLK_S0D3_PER),
        DEF_MOD("sys-dmac1",    710,    R8A779F0_CLK_S0D3_PER),
Domain: System / Kernel;