Covert the Spreadtrum SDHCI controller bindings to DT schema. Rename the file to match compatible. Drop assigned-* properties as these should not be needed. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Signed-off-by: Stanislav Jakubek <stano.jakubek@xxxxxxxxx> --- Node name adjustments in DTS are being handled as part of: https://lore.kernel.org/lkml/cover.1720112081.git.stano.jakubek@xxxxxxxxx/ Changes in V2: - drop assigned-* properties, these shouldn't be needed (Krzysztof) - reflect this change in the commit description .../devicetree/bindings/mmc/sdhci-sprd.txt | 67 ----------- .../bindings/mmc/sprd,sdhci-r11.yaml | 112 ++++++++++++++++++ 2 files changed, 112 insertions(+), 67 deletions(-) delete mode 100644 Documentation/devicetree/bindings/mmc/sdhci-sprd.txt create mode 100644 Documentation/devicetree/bindings/mmc/sprd,sdhci-r11.yaml diff --git a/Documentation/devicetree/bindings/mmc/sdhci-sprd.txt b/Documentation/devicetree/bindings/mmc/sdhci-sprd.txt deleted file mode 100644 index eb7eb1b529f0..000000000000 --- a/Documentation/devicetree/bindings/mmc/sdhci-sprd.txt +++ /dev/null @@ -1,67 +0,0 @@ -* Spreadtrum SDHCI controller (sdhci-sprd) - -The Secure Digital (SD) Host controller on Spreadtrum SoCs provides an interface -for MMC, SD and SDIO types of cards. - -This file documents differences between the core properties in mmc.txt -and the properties used by the sdhci-sprd driver. - -Required properties: -- compatible: Should contain "sprd,sdhci-r11". -- reg: physical base address of the controller and length. -- interrupts: Interrupts used by the SDHCI controller. -- clocks: Should contain phandle for the clock feeding the SDHCI controller -- clock-names: Should contain the following: - "sdio" - SDIO source clock (required) - "enable" - gate clock which used for enabling/disabling the device (required) - "2x_enable" - gate clock controlling the device for some special platforms (optional) - -Optional properties: -- assigned-clocks: the same with "sdio" clock -- assigned-clock-parents: the default parent of "sdio" clock -- pinctrl-names: should be "default", "state_uhs" -- pinctrl-0: should contain default/high speed pin control -- pinctrl-1: should contain uhs mode pin control - -PHY DLL delays are used to delay the data valid window, and align the window -to sampling clock. PHY DLL delays can be configured by following properties, -and each property contains 4 cells which are used to configure the clock data -write line delay value, clock read command line delay value, clock read data -positive edge delay value and clock read data negative edge delay value. -Each cell's delay value unit is cycle of the PHY clock. - -- sprd,phy-delay-legacy: Delay value for legacy timing. -- sprd,phy-delay-sd-highspeed: Delay value for SD high-speed timing. -- sprd,phy-delay-sd-uhs-sdr50: Delay value for SD UHS SDR50 timing. -- sprd,phy-delay-sd-uhs-sdr104: Delay value for SD UHS SDR50 timing. -- sprd,phy-delay-mmc-highspeed: Delay value for MMC high-speed timing. -- sprd,phy-delay-mmc-ddr52: Delay value for MMC DDR52 timing. -- sprd,phy-delay-mmc-hs200: Delay value for MMC HS200 timing. -- sprd,phy-delay-mmc-hs400: Delay value for MMC HS400 timing. -- sprd,phy-delay-mmc-hs400es: Delay value for MMC HS400 enhanced strobe timing. - -Examples: - -sdio0: sdio@20600000 { - compatible = "sprd,sdhci-r11"; - reg = <0 0x20600000 0 0x1000>; - interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>; - - clock-names = "sdio", "enable"; - clocks = <&ap_clk CLK_EMMC_2X>, - <&apahb_gate CLK_EMMC_EB>; - assigned-clocks = <&ap_clk CLK_EMMC_2X>; - assigned-clock-parents = <&rpll CLK_RPLL_390M>; - - pinctrl-names = "default", "state_uhs"; - pinctrl-0 = <&sd0_pins_default>; - pinctrl-1 = <&sd0_pins_uhs>; - - sprd,phy-delay-sd-uhs-sdr104 = <0x3f 0x7f 0x2e 0x2e>; - bus-width = <8>; - non-removable; - no-sdio; - no-sd; - cap-mmc-hw-reset; - status = "okay"; -}; diff --git a/Documentation/devicetree/bindings/mmc/sprd,sdhci-r11.yaml b/Documentation/devicetree/bindings/mmc/sprd,sdhci-r11.yaml new file mode 100644 index 000000000000..b08081bc018b --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/sprd,sdhci-r11.yaml @@ -0,0 +1,112 @@ +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/sprd,sdhci-r11.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Spreadtrum SDHCI controller + +maintainers: + - Orson Zhai <orsonzhai@xxxxxxxxx> + - Baolin Wang <baolin.wang7@xxxxxxxxx> + - Chunyan Zhang <zhang.lyra@xxxxxxxxx> + +properties: + compatible: + const: sprd,sdhci-r11 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + minItems: 2 + items: + - description: SDIO source clock + - description: gate clock for enabling/disabling the device + - description: gate clock controlling the device for some special platforms (optional) + + clock-names: + minItems: 2 + items: + - const: sdio + - const: enable + - const: 2x_enable + + pinctrl-0: + description: default/high speed pin control + maxItems: 1 + + pinctrl-1: + description: UHS mode pin control + maxItems: 1 + + pinctrl-names: + minItems: 1 + items: + - const: default + - const: state_uhs + +patternProperties: + "^sprd,phy-delay-(legacy|mmc-(ddr52|highspeed|hs[24]00|hs400es)|sd-(highspeed|uhs-sdr(50|104)))$": + $ref: /schemas/types.yaml#/definitions/uint32-array + items: + - description: clock data write line delay value + - description: clock read command line delay value + - description: clock read data positive edge delay value + - description: clock read data negative edge delay value + description: + PHY DLL delays are used to delay the data valid window, and align + the window to the sampling clock. Each cell's delay value unit is + cycle of the PHY clock. + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +allOf: + - $ref: sdhci-common.yaml# + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/sprd,sc9860-clk.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/interrupt-controller/irq.h> + + mmc@50430000 { + compatible = "sprd,sdhci-r11"; + reg = <0x50430000 0x1000>; + interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; + + clocks = <&aon_prediv CLK_EMMC_2X>, + <&apahb_gate CLK_EMMC_EB>, + <&aon_gate CLK_EMMC_2X_EN>; + clock-names = "sdio", "enable", "2x_enable"; + + pinctrl-0 = <&sd0_pins_default>; + pinctrl-1 = <&sd0_pins_uhs>; + pinctrl-names = "default", "state_uhs"; + + bus-width = <8>; + cap-mmc-hw-reset; + mmc-hs400-enhanced-strobe; + mmc-hs400-1_8v; + mmc-hs200-1_8v; + mmc-ddr-1_8v; + non-removable; + no-sdio; + no-sd; + + sprd,phy-delay-mmc-ddr52 = <0x3f 0x75 0x14 0x14>; + sprd,phy-delay-mmc-hs200 = <0x0 0x8c 0x8c 0x8c>; + sprd,phy-delay-mmc-hs400 = <0x44 0x7f 0x2e 0x2e>; + sprd,phy-delay-mmc-hs400es = <0x3f 0x3f 0x2e 0x2e>; + }; +... -- 2.34.1
