| Message ID | 20250314-ufs-dma-coherent-v1-1-bdf9f9be2919@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | Add dma-coherent for gs101 UFS dt node | expand |
On Fri, 2025-03-14 at 15:38 +0000, Peter Griffin wrote: > ufs-exynos driver configures the sysreg shareability as > cacheable for gs101 so we need to set the dma-coherent > property so the descriptors are also allocated cacheable. > > This fixes the UFS stability issues we have seen with > the upstream UFS driver on gs101. > > Fixes: 4c65d7054b4c ("arm64: dts: exynos: gs101: Add ufs and ufs-phy dt nodes") > Cc: stable@vger.kernel.org > Suggested-by: Will McVicker <willmcvicker@google.com> > Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Tested-by: André Draszik <andre.draszik@linaro.org> Reviewed-by: André Draszik <andre.draszik@linaro.org>
diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index c5335dd59dfe9fcf8c64d66a466799600f8447b0..cf30128ef004568f01b1c7150c5585ba267d64bc 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -1360,6 +1360,7 @@ ufs_0: ufs@14700000 { <&cmu_hsi2 CLK_GOUT_HSI2_SYSREG_HSI2_PCLK>; clock-names = "core_clk", "sclk_unipro_main", "fmp", "aclk", "pclk", "sysreg"; + dma-coherent; freq-table-hz = <0 0>, <0 0>, <0 0>, <0 0>, <0 0>, <0 0>; pinctrl-0 = <&ufs_rst_n &ufs_refclk_out>; pinctrl-names = "default";
ufs-exynos driver configures the sysreg shareability as cacheable for gs101 so we need to set the dma-coherent property so the descriptors are also allocated cacheable. This fixes the UFS stability issues we have seen with the upstream UFS driver on gs101. Fixes: 4c65d7054b4c ("arm64: dts: exynos: gs101: Add ufs and ufs-phy dt nodes") Cc: stable@vger.kernel.org Suggested-by: Will McVicker <willmcvicker@google.com> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 1 + 1 file changed, 1 insertion(+)