Hi.
The first part is to document DT bindings for Keem Bay eMMC PHY.
The second is the driver file, loosely based on phy-rockchip-emmc.c
and phy-intel-emmc.c. The latter is not being reused as there are
quite a number of differences i.e. registers offset, supported clock
rates, bitfield to set.
The patch was tested with Keem Bay evaluation module board.
Thank you.
Best regards,
Zainie
Resend v5:
- Include missing changes done for phy-keembay-emmc.c (See Changes since v3)
Changes since v4:
- In Kconfig file, add depends on ARM64 || COMPILE_TEST and
depends on OF && HAS_IOMEM.
- In Kconfig file, reword the help section to be more verbose.
Changes since v3:
- Exit keembay_emmc_phy_power() with return ret;.
- In keembay_emmc_phy_init(), use PTR_ERR_OR_ZERO(...).
- In keembay_emmc_phy_probe(), devm_regmap_init_mmio(...) in single
line.
Changes since v2:
- Modify DT example to use single cell for address and size.
Changes since v1:
- Rework phy-keembay-emmc.c to make it similar to phy-intel-emmc.c.
- Use regmap_mmio, and remove reference to intel,syscon.
- Use node name phy@....
- Update license i.e. use dual license.
Wan Ahmad Zainie (2):
dt-bindings: phy: intel: Add Keem Bay eMMC PHY bindings
phy: intel: Add Keem Bay eMMC PHY support
.../bindings/phy/intel,keembay-emmc-phy.yaml | 44 +++
drivers/phy/intel/Kconfig | 12 +
drivers/phy/intel/Makefile | 1 +
drivers/phy/intel/phy-keembay-emmc.c | 316 ++++++++++++++++++
4 files changed, 373 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/intel,keembay-emmc-phy.yaml
create mode 100644 drivers/phy/intel/phy-keembay-emmc.c
--
2.17.1
Binding description for Intel Keem Bay eMMC PHY.
Signed-off-by: Wan Ahmad Zainie <[email protected]>
---
.../bindings/phy/intel,keembay-emmc-phy.yaml | 44 +++++++++++++++++++
1 file changed, 44 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/intel,keembay-emmc-phy.yaml
diff --git a/Documentation/devicetree/bindings/phy/intel,keembay-emmc-phy.yaml b/Documentation/devicetree/bindings/phy/intel,keembay-emmc-phy.yaml
new file mode 100644
index 000000000000..4cbbd3887c13
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/intel,keembay-emmc-phy.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/phy/intel,keembay-emmc-phy.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Intel Keem Bay eMMC PHY bindings
+
+maintainers:
+ - Wan Ahmad Zainie <[email protected]>
+
+properties:
+ compatible:
+ const: intel,keembay-emmc-phy
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: emmcclk
+
+ "#phy-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ phy@20290000 {
+ compatible = "intel,keembay-emmc-phy";
+ reg = <0x20290000 0x54>;
+ clocks = <&emmc>;
+ clock-names = "emmcclk";
+ #phy-cells = <0>;
+ };
--
2.17.1