There are various customizable parameters, so several variants for this IP. A generic compatible like "denali,denali-nand-dt" is useless. Moreover, there are multiple things wrong with this string. (Refer to Rob's comment [1]) The denali_dt.c was split out and this compatible was added by Altera for the SOCFPGA port. So, replace it with a more specific string. The Denali IP on SOCFPGA incorporates the hardware ECC fixup feature. So, this capability should be associated with the compatible string. [1] https://lkml.org/lkml/2016/12/1/450 Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> --- Changes in v2: - Add caps flag to of_device_id data, not hard-code in driver code - Add Altera-specific compatible. Documentation/devicetree/bindings/mtd/denali-nand.txt | 5 +++-- drivers/mtd/nand/denali_dt.c | 14 ++++++++++---- 2 files changed, 13 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/mtd/denali-nand.txt b/Documentation/devicetree/bindings/mtd/denali-nand.txt index b04d03a..6f4ab4c 100644 --- a/Documentation/devicetree/bindings/mtd/denali-nand.txt +++ b/Documentation/devicetree/bindings/mtd/denali-nand.txt @@ -1,7 +1,8 @@ * Denali NAND controller Required properties: - - compatible : should be "denali,denali-nand-dt" + - compatible : should be one of the following: + "altr,socfpga-denali-nand" - for Altera SOCFPGA - reg : should contain registers location and length for data and reg. - reg-names: Should contain the reg names "nand_data" and "denali_reg" - interrupts : The interrupt number. @@ -15,7 +16,7 @@ Examples: nand: nand@ff900000 { #address-cells = <1>; #size-cells = <1>; - compatible = "denali,denali-nand-dt"; + compatible = "altr,socfpga-denali-nand"; reg = <0xff900000 0x100000>, <0xffb80000 0x10000>; reg-names = "nand_data", "denali_reg"; interrupts = <0 144 4>; diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c index 293ddb8..9577bfd 100644 --- a/drivers/mtd/nand/denali_dt.c +++ b/drivers/mtd/nand/denali_dt.c @@ -33,11 +33,17 @@ struct denali_dt_data { unsigned int caps; }; -static const struct of_device_id denali_nand_dt_ids[] = { - { .compatible = "denali,denali-nand-dt" }, - { /* sentinel */ } - }; +static const struct denali_dt_data denali_socfpga_data = { + .caps = DENALI_CAP_HW_ECC_FIXUP, +}; +static const struct of_device_id denali_nand_dt_ids[] = { + { + .compatible = "altr,socfpga-denali-nand", + .data = &denali_socfpga_data, + }, + { /* sentinel */ } +}; MODULE_DEVICE_TABLE(of, denali_nand_dt_ids); static u64 denali_dma_mask; -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
