clk: renesas: r8a779f0: Fix RSW2 clock divider

Commit Message

Geert Uytterhoeven Jan. 7, 2022, 2:34 p.m. UTC

According to Section 8.1.2 Figure 8.1.1 ("Block Diagram of CPG"), Note
22 ("RSW2 divider"), and Table 8.1.4d ("Lists of CPG clocks generated
from CPGMA1"), the RSwitch2 and PCI Express clock is generated from PLL5
by dividing by two, followed by the RSW2 divider.  As PLL5 runs at 3200
MHz, and RSW2 is fixed to 320 MHz, the RSW2 divider must be 5.

Correct the parent and the fixed divider.

Fixes: 24aaff6a6ce4c4de ("clk: renesas: cpg-mssr: Add support for R-Car S4-8")
Signed-off-by: Geert Uytterhoeven <[e-mail]>
---
To be queued in renesas-clk-for-v5.18, as this is non-critical.

 drivers/clk/renesas/r8a779f0-cpg-mssr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/drivers/clk/renesas/r8a779f0-cpg-mssr.c b/drivers/clk/renesas/r8a779f0-cpg-mssr.c
index e6ec02c2c2a8b83c..344957d533d811ad 100644
--- a/drivers/clk/renesas/r8a779f0-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a779f0-cpg-mssr.c
@@ -103,7 +103,7 @@  static const struct cpg_core_clk r8a779f0_core_clks[] __initconst = {
 	DEF_FIXED("s0d12_hsc",	R8A779F0_CLK_S0D12_HSC,	CLK_S0,		12, 1),
 	DEF_FIXED("cl16m_hsc",	R8A779F0_CLK_CL16M_HSC,	CLK_S0,		48, 1),
 	DEF_FIXED("s0d2_cc",	R8A779F0_CLK_S0D2_CC,	CLK_S0,		2, 1),
-	DEF_FIXED("rsw2",	R8A779F0_CLK_RSW2,	CLK_PLL5,	2, 1),
+	DEF_FIXED("rsw2",	R8A779F0_CLK_RSW2,	CLK_PLL5_DIV2,	5, 1),
 	DEF_FIXED("cbfusa",	R8A779F0_CLK_CBFUSA,	CLK_EXTAL,	2, 1),
 	DEF_FIXED("cpex",	R8A779F0_CLK_CPEX,	CLK_EXTAL,	2, 1),