[PATCH 5/7] arm64: dts: exynos7870-a2corelte: add bus-width to mmc0 node

Kaustabh Chakraborty posted 7 patches 4 months, 2 weeks ago
[PATCH 5/7] arm64: dts: exynos7870-a2corelte: add bus-width to mmc0 node
Posted by Kaustabh Chakraborty 4 months, 2 weeks ago
Add the bus-width property in &mmc0 node. The Exynos DWMMC driver
assumes bus width to be 8 if not present in devicetree, so at least with
respect to the Linux kernel, this doesn't introduce any functional
changes. But other drivers referring to it may not. Either way, without
the bus-width property the hardware description remains incomplete.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
---
 arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts b/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts
index f8a7610abeb77cab9f38aaf48d441d99ec61ab5f..1193f0f7dcc171762fefccee23c2c294a41c46c9 100644
--- a/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts
@@ -447,6 +447,7 @@ &mmc0 {
 	vmmc-supply = <&vdd_ldo26>;
 	vqmmc-supply = <&vdd_ldo27>;
 
+	bus-width = <8>;
 	fifo-depth = <64>;
 	samsung,dw-mshc-ciu-div = <3>;
 	samsung,dw-mshc-sdr-timing = <0 4>;

-- 
2.51.0
Re: (subset) [PATCH 5/7] arm64: dts: exynos7870-a2corelte: add bus-width to mmc0 node
Posted by Krzysztof Kozlowski 3 months, 4 weeks ago
On Sun, 28 Sep 2025 22:13:56 +0530, Kaustabh Chakraborty wrote:
> Add the bus-width property in &mmc0 node. The Exynos DWMMC driver
> assumes bus width to be 8 if not present in devicetree, so at least with
> respect to the Linux kernel, this doesn't introduce any functional
> changes. But other drivers referring to it may not. Either way, without
> the bus-width property the hardware description remains incomplete.
> 
> 
> [...]

Applied, thanks!

[5/7] arm64: dts: exynos7870-a2corelte: add bus-width to mmc0 node
      https://git.kernel.org/krzk/linux/c/5b33bce0bd31ca3ebc5e3a75b3053141540ec644

Best regards,
-- 
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>