de01fec4a7
The bootloader provides the partition table using the boot arguments and uses the name spi-nor and spi-nand for the different controllers. The old code was not setting the name any more because mtd->name was already set before. Move the setting of the name to the spi-mem code now. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
62 lines
1.8 KiB
Diff
62 lines
1.8 KiB
Diff
From f32bc2aa01edcba2f2ed5db151cf183eac9ef919 Mon Sep 17 00:00:00 2001
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From: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
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Date: Sat, 25 Feb 2017 16:42:50 +0000
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Subject: mtd: nor: support mtd name from device tree
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Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
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---
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drivers/mtd/spi-nor/spi-nor.c | 8 +++++++-
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1 file changed, 7 insertions(+), 1 deletion(-)
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--- a/drivers/spi/spi-mem.c
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+++ b/drivers/spi/spi-mem.c
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@@ -846,7 +846,9 @@ static int spi_mem_probe(struct spi_devi
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{
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struct spi_mem_driver *memdrv = to_spi_mem_drv(spi->dev.driver);
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struct spi_controller *ctlr = spi->controller;
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+ const char __maybe_unused *of_mtd_name = NULL;
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struct spi_mem *mem;
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+ int ret;
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mem = devm_kzalloc(&spi->dev, sizeof(*mem), GFP_KERNEL);
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if (!mem)
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@@ -854,10 +856,15 @@ static int spi_mem_probe(struct spi_devi
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mem->spi = spi;
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- if (ctlr->mem_ops && ctlr->mem_ops->get_name)
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+ if (ctlr->mem_ops && ctlr->mem_ops->get_name) {
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mem->name = ctlr->mem_ops->get_name(mem);
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- else
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- mem->name = dev_name(&spi->dev);
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+ } else {
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+ ret = device_property_read_string(&spi->dev, "linux,mtd-name", &of_mtd_name);
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+ if (!ret)
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+ mem->name = of_mtd_name;
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+ else
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+ mem->name = dev_name(&spi->dev);
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+ }
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if (IS_ERR_OR_NULL(mem->name))
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return PTR_ERR_OR_ZERO(mem->name);
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--- a/drivers/mtd/mtdcore.c
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+++ b/drivers/mtd/mtdcore.c
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@@ -870,6 +870,17 @@ out_error:
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*/
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static void mtd_set_dev_defaults(struct mtd_info *mtd)
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{
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+#ifdef CONFIG_MTD_OF_PARTS
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+ const char __maybe_unused *of_mtd_name = NULL;
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+ struct device_node *np;
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+
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+ np = mtd_get_of_node(mtd);
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+ if (np && !mtd->name) {
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+ of_property_read_string(np, "linux,mtd-name", &of_mtd_name);
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+ if (of_mtd_name)
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+ mtd->name = of_mtd_name;
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+ } else
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+#endif
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if (mtd->dev.parent) {
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if (!mtd->owner && mtd->dev.parent->driver)
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mtd->owner = mtd->dev.parent->driver->owner;
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