[PATCH 2/3] ARM: shmobile: r8a7790: specify multiple parents for cpg_clks
William Towle
william.towle at codethink.co.uk
Tue Feb 4 13:17:37 EST 2014
The current drivers/clk/shmobile/clk-rcar-gen2.c uses the
extal_clk reference for the parent of all the clocks that
it registers. However the lb, qspi, sdh, sd0 and sd1 clocks
are all parented to either pll1 or pll1_div2 which means
that the clock rates are incorrect.
This is part of the fix that corrects the SDHI0 clock
rate error where it reports 1MHz instead of 97.5:
sh_mobile_sdhi ee100000.sd: mmc0 base at 0xee100000 clock rate 1 MHz
Notes:
- May require cross-merge with clk-rcar-gen2.c fix
- Also not clear which clock "z" is to fix it.
[ben.dooks at codethink.co.uk: updated patch description]
Signed-off-by: William Towle <william.towle at codethink.co.uk>
Reviewed-by: Ben Dooks <ben.dooks at codethink.co.uk>
---
arch/arm/boot/dts/r8a7790.dtsi | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index ff55c6e..242e6e2 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -446,7 +446,13 @@
compatible = "renesas,r8a7790-cpg-clocks",
"renesas,rcar-gen2-cpg-clocks";
reg = <0 0xe6150000 0 0x1000>;
- clocks = <&extal_clk>;
+ clocks = <&extal_clk>, <&extal_clk>, <&extal_clk>, <&extal_clk>,
+ <&cpg_clocks R8A7790_CLK_PLL1>,
+ <&pll1_div2_clk>,
+ <&cpg_clocks R8A7790_CLK_PLL1>,
+ <&cpg_clocks R8A7790_CLK_PLL1>,
+ <&cpg_clocks R8A7790_CLK_PLL1>
+ /* not known for "z" ...,<> */;
#clock-cells = <1>;
clock-output-names = "main", "pll0", "pll1", "pll3",
"lb", "qspi", "sdh", "sd0", "sd1",
--
1.7.10.4
More information about the linux-arm-kernel
mailing list