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Fri, 14 Mar 2025 08:38:16 -0700 (PDT) From: Peter Griffin Date: Fri, 14 Mar 2025 15:38:02 +0000 Subject: [PATCH 1/2] arm64: dts: exynos: gs101: ufs: add dma-coherent property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250314-ufs-dma-coherent-v1-1-bdf9f9be2919@linaro.org> References: <20250314-ufs-dma-coherent-v1-0-bdf9f9be2919@linaro.org> In-Reply-To: <20250314-ufs-dma-coherent-v1-0-bdf9f9be2919@linaro.org> To: =?utf-8?q?Andr=C3=A9_Draszik?= , Tudor Ambarus , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , Avri Altman , Bart Van Assche , "Martin K. Petersen" Cc: Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, kernel-team@android.com, willmcvicker@google.com, Peter Griffin , stable@vger.kernel.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1280; i=peter.griffin@linaro.org; h=from:subject:message-id; bh=HSyPEmJtBsHxDhCUULm5Dya2418jRqfFk0guvCilkbQ=; b=owEBbQKS/ZANAwAKAc7ouNYCNHK6AcsmYgBn1E1kYCQBmCyj5ZPX4kgCPL0qUhJeVs8SYMUGs jG0pHfrOVeJAjMEAAEKAB0WIQQO/I5vVXh1DVa1SfzO6LjWAjRyugUCZ9RNZAAKCRDO6LjWAjRy ukfOD/9qIbmRkrjri21mRCY4ydKJb92uYxQTmLzBqS9EoQqKw3ypCrcUPmvcJfpaXhH+DpWLSSy a2IioXKB+tQuqZRLgTsSzAmFr8d1n3q67OAnvPh1Lbf81/vs1hKRH8pfjjl6cuRfZLpo7J98uwD rXzds9tzH/JHEJMWfqNXb5PL0x8yDubYQPlrg7FM74C9YYnE9gVYi8CPuXyYuPIeq7wzPaZfcYk NC4fLOfTgMXIscvqeUd+ybPUSz4iJQTqn9r1yKZikyXqyr7zdY3vHR5jhgV1TkvyKA56I6wA7Cg 9mvSJgXSeglXhnLEnf7QqASjQxHkzcXPgQcsCmkfUsPWYuzil2U55RH2SI1Q33PhdjKsK4Vi9P+ leUhppTQRotRB3f38/g8gyh45DP3VdfDFAL4y0Hm0hZWnRFmSBzPBgjhLoayKeln75j7B1vgRgH /8znc1PSTMKIe9EcT7LNnGe8+kSwHMOSuKyawIBFRQI/gGgiFOYvnWMZej9B2ZTa3uQp0WSbV+3 /mxOVssXI9mS1r2sfTuMeV4BXfo8wPxsE7Bf10tVpbljxq17THjVCyjaD4qYpjWYBAYJ+NI6IZV vRqX3vpHKVMoL6e1KTNUEVHCDqmvnUCLNqOjia0oLpF/tAfqujQFEoig5Ck2h2ULDvvIB3trQ9k W+zbPT/ONn7vy5g== X-Developer-Key: i=peter.griffin@linaro.org; a=openpgp; fpr=0EFC8E6F5578750D56B549FCCEE8B8D6023472BA 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 nod= es") Cc: stable@vger.kernel.org Suggested-by: Will McVicker Signed-off-by: Peter Griffin Reviewed-by: Andr=C3=A9 Draszik Tested-by: Andr=C3=A9 Draszik Tested-by: Will McVicker --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot= /dts/exynos/google/gs101.dtsi index c5335dd59dfe9fcf8c64d66a466799600f8447b0..cf30128ef004568f01b1c7150c5= 585ba267d64bc 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 =3D "core_clk", "sclk_unipro_main", "fmp", "aclk", "pclk", "sysreg"; + dma-coherent; freq-table-hz =3D <0 0>, <0 0>, <0 0>, <0 0>, <0 0>, <0 0>; pinctrl-0 =3D <&ufs_rst_n &ufs_refclk_out>; pinctrl-names =3D "default"; --=20 2.49.0.rc1.451.g8f38331e32-goog