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| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2022-11-03 15:34:38 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2022-11-08 14:23:59 +0100 |
| commit | 2e0d7d3eabce3babae1fd66d7650e00c848a3b45 (patch) | |
| tree | fc8da9e89d57a8b2027109547a05610dc68b0aba /drivers/clk/renesas | |
| parent | c258e3ab639112d8f5ae9df9a873750ae2623ce2 (diff) | |
| download | linux-stable-2e0d7d3eabce3babae1fd66d7650e00c848a3b45.tar.gz linux-stable-2e0d7d3eabce3babae1fd66d7650e00c848a3b45.tar.bz2 linux-stable-2e0d7d3eabce3babae1fd66d7650e00c848a3b45.zip | |
clk: renesas: r8a779f0: Fix SCIF parent clocks
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>
Diffstat (limited to 'drivers/clk/renesas')
| -rw-r--r-- | drivers/clk/renesas/r8a779f0-cpg-mssr.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/clk/renesas/r8a779f0-cpg-mssr.c b/drivers/clk/renesas/r8a779f0-cpg-mssr.c index fd1462425316..800fdc104edd 100644 --- 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), |