[PATCH v3 3/4] memory: omap-gpmc: Use a compatible match table when checking for NAND controller
From: Roger Quadros <rogerq@kernel.org>
Date: 2021-12-17 10:30:07
Also in:
linux-omap, lkml
Subsystem:
memory controller drivers, memory technology devices (mtd), nand flash subsystem, omap general purpose memory controller support, the rest · Maintainers:
Krzysztof Kozlowski, Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Roger Quadros, Tony Lindgren, Linus Torvalds
As more compatibles can be added to the GPMC NAND controller driver use a compatible match table. Signed-off-by: Roger Quadros <rogerq@kernel.org> --- drivers/memory/omap-gpmc.c | 8 +++++++- drivers/mtd/nand/raw/omap2.c | 2 +- include/linux/platform_data/mtd-nand-omap2.h | 5 +++++ 3 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index 624153048182..814ddb45c13d 100644
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c@@ -2091,6 +2091,7 @@ static int gpmc_probe_generic_child(struct platform_device *pdev, u32 val; struct gpio_desc *waitpin_desc = NULL; struct gpmc_device *gpmc = platform_get_drvdata(pdev); + bool is_nand = false; if (of_property_read_u32(child, "reg", &cs) < 0) { dev_err(&pdev->dev, "%pOF has no 'reg' property\n",
@@ -2183,7 +2184,12 @@ static int gpmc_probe_generic_child(struct platform_device *pdev, } } - if (of_device_is_compatible(child, "ti,omap2-nand")) { +#if defined(CONFIG_MTD_NAND_OMAP2) + if (of_match_node(omap_nand_ids, child)) + is_nand = true; +#endif + + if (is_nand) { /* NAND specific setup */ val = 8; of_property_read_u32(child, "nand-bus-width", &val);
diff --git a/drivers/mtd/nand/raw/omap2.c b/drivers/mtd/nand/raw/omap2.c
index b26d4947af02..fff834ee726f 100644
--- a/drivers/mtd/nand/raw/omap2.c
+++ b/drivers/mtd/nand/raw/omap2.c@@ -2352,7 +2352,7 @@ static int omap_nand_remove(struct platform_device *pdev) return ret; } -static const struct of_device_id omap_nand_ids[] = { +const struct of_device_id omap_nand_ids[] = { { .compatible = "ti,omap2-nand", }, {}, };
diff --git a/include/linux/platform_data/mtd-nand-omap2.h b/include/linux/platform_data/mtd-nand-omap2.h
index de6ada739121..e1bb90a8db03 100644
--- a/include/linux/platform_data/mtd-nand-omap2.h
+++ b/include/linux/platform_data/mtd-nand-omap2.h@@ -61,4 +61,9 @@ struct gpmc_nand_regs { void __iomem *gpmc_bch_result5[GPMC_BCH_NUM_REMAINDER]; void __iomem *gpmc_bch_result6[GPMC_BCH_NUM_REMAINDER]; }; + +#if defined(CONFIG_MTD_NAND_OMAP2) +extern const struct of_device_id omap_nand_ids[]; +#endif + #endif
--
2.17.1