Add per-Generation fallback bindings for R-Car SoCs. This is in keeping with the compatibility string scheme is being adopted for drivers for Renesas SoCs.
Signed-off-by: Simon Horman <[email protected]> --- Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt | 17 ++++++++++++++--- drivers/i2c/busses/i2c-sh_mobile.c | 2 ++ 2 files changed, 16 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt index 214f94c25d37..7716acc55dec 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt @@ -1,8 +1,7 @@ Device tree configuration for Renesas IIC (sh_mobile) driver Required properties: -- compatible : "renesas,iic-<soctype>". "renesas,rmobile-iic" as fallback - Examples with soctypes are: +- compatible : - "renesas,iic-r8a73a4" (R-Mobile APE6) - "renesas,iic-r8a7740" (R-Mobile A1) - "renesas,iic-r8a7790" (R-Car H2) @@ -12,6 +11,17 @@ Required properties: - "renesas,iic-r8a7794" (R-Car E2) - "renesas,iic-r8a7795" (R-Car H3) - "renesas,iic-sh73a0" (SH-Mobile AG5) + - "renesas,rcar-gen2-iic" (generic R-Car Gen2 compatible device) + - "renesas,rcar-gen3-iic" (generic R-Car Gen3 compatible device) + - "renesas,rmobile-iic" (generic device) + + When compatible with a generic R-Car version, nodes + must list the SoC-specific version corresponding to + the platform first followed by the generic R-Car + version. + + renesas,rmobile-iic must always follow. + - reg : address start and address range size of device - interrupts : interrupt of device - clocks : clock for device @@ -31,7 +41,8 @@ Pinctrl properties might be needed, too. See there. Example: iic0: i2c@e6500000 { - compatible = "renesas,iic-r8a7790", "renesas,rmobile-iic"; + compatible = "renesas,iic-r8a7790", "renesas,rcar-gen2-iic", + "renesas,rmobile-iic"; reg = <0 0xe6500000 0 0x425>; interrupts = <0 174 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp3_clks R8A7790_CLK_IIC0>; diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c index 6335ad35902d..3d9ebe6e5716 100644 --- a/drivers/i2c/busses/i2c-sh_mobile.c +++ b/drivers/i2c/busses/i2c-sh_mobile.c @@ -834,7 +834,9 @@ static const struct of_device_id sh_mobile_i2c_dt_ids[] = { { .compatible = "renesas,iic-r8a7792", .data = &fast_clock_dt_config }, { .compatible = "renesas,iic-r8a7793", .data = &fast_clock_dt_config }, { .compatible = "renesas,iic-r8a7794", .data = &fast_clock_dt_config }, + { .compatible = "renesas,rcar-gen2-iic", .data = &fast_clock_dt_config }, { .compatible = "renesas,iic-r8a7795", .data = &fast_clock_dt_config }, + { .compatible = "renesas,rcar-gen3-iic", .data = &fast_clock_dt_config }, { .compatible = "renesas,iic-sh73a0", .data = &fast_clock_dt_config }, { .compatible = "renesas,rmobile-iic", .data = &default_dt_config }, {}, -- 2.7.0.rc3.207.g0ac5344
