ARM: dts: exynos: Reduce assigned-clocks entries for SPI0 on Artik5 board

Commit 2024b130b0c8 ("ARM: dts: exynos: Add Ethernet to Artik 5 board")
added ethernet chip on SPI0 bus and the whole bunch of assigned clock
entries to ensure proper clock rates and topology. Limit the assigned
clock parents only to the direct clocks of the SPI0 device and assume
that MPLL clock is already properly configured.

The applied clock topology was incorrect as some clocks between were
missing, what resulted in the following warning:

clk: failed to reparent div_mpll_pre to mout_mpll: -22

Fixes: 2024b130b0c8 ("ARM: dts: exynos: Add Ethernet to Artik 5 board")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20201202122029.22198-1-m.szyprowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

diff --git a/arch/arm/boot/dts/exynos3250-artik5-eval.dts b/arch/arm/boot/dts/exynos3250-artik5-eval.dts
index 5461949..a1e22f6 100644 (file)
--- a/arch/arm/boot/dts/exynos3250-artik5-eval.dts
+++ b/arch/arm/boot/dts/exynos3250-artik5-eval.dts
@@ -42,12 +42,9 @@
        status = "okay";
        cs-gpios = <&gpx3 4 GPIO_ACTIVE_LOW>, <0>;
 
-       assigned-clocks = <&cmu CLK_MOUT_MPLL>, <&cmu CLK_DIV_MPLL_PRE>,
-                         <&cmu CLK_MOUT_SPI0>, <&cmu CLK_DIV_SPI0>,
+       assigned-clocks = <&cmu CLK_MOUT_SPI0>, <&cmu CLK_DIV_SPI0>,
                          <&cmu CLK_DIV_SPI0_PRE>, <&cmu CLK_SCLK_SPI0>;
-       assigned-clock-parents = <&cmu CLK_FOUT_MPLL>,    /* for: CLK_MOUT_MPLL */
-                                <&cmu CLK_MOUT_MPLL>,    /* for: CLK_DIV_MPLL_PRE */
-                                <&cmu CLK_DIV_MPLL_PRE>, /* for: CLK_MOUT_SPI0 */
+       assigned-clock-parents = <&cmu CLK_DIV_MPLL_PRE>, /* for: CLK_MOUT_SPI0 */
                                 <&cmu CLK_MOUT_SPI0>,    /* for: CLK_DIV_SPI0 */
                                 <&cmu CLK_DIV_SPI0>,     /* for: CLK_DIV_SPI0_PRE */
                                 <&cmu CLK_DIV_SPI0_PRE>; /* for: CLK_SCLK_SPI0 */