aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/mediatek/patches-4.4/0073-of-mtd-prepare-helper-reading-NAND-ECC-algo-from-DT.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/mediatek/patches-4.4/0073-of-mtd-prepare-helper-reading-NAND-ECC-algo-from-DT.patch')
-rw-r--r--target/linux/mediatek/patches-4.4/0073-of-mtd-prepare-helper-reading-NAND-ECC-algo-from-DT.patch91
1 files changed, 0 insertions, 91 deletions
diff --git a/target/linux/mediatek/patches-4.4/0073-of-mtd-prepare-helper-reading-NAND-ECC-algo-from-DT.patch b/target/linux/mediatek/patches-4.4/0073-of-mtd-prepare-helper-reading-NAND-ECC-algo-from-DT.patch
deleted file mode 100644
index aa45441afa..0000000000
--- a/target/linux/mediatek/patches-4.4/0073-of-mtd-prepare-helper-reading-NAND-ECC-algo-from-DT.patch
+++ /dev/null
@@ -1,91 +0,0 @@
-From 410a91f6efa1c4c3c4369d1dd2c31286749dff33 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
-Date: Wed, 23 Mar 2016 11:19:01 +0100
-Subject: [PATCH 073/102] of: mtd: prepare helper reading NAND ECC algo from
- DT
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-NAND subsystem is being slightly reworked to store ECC details in
-separated fields. In future we'll want to add support for more DT
-properties as specifying every possible setup with a single
-"nand-ecc-mode" is a pretty bad idea.
-To allow this let's add a helper that will support something like
-"nand-ecc-algo" in future. Right now we use it for keeping backward
-compatibility.
-
-Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
-Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
----
- drivers/of/of_mtd.c | 36 ++++++++++++++++++++++++++++++++++++
- include/linux/of_mtd.h | 6 ++++++
- 2 files changed, 42 insertions(+)
-
---- a/drivers/of/of_mtd.c
-+++ b/drivers/of/of_mtd.c
-@@ -50,6 +50,42 @@ int of_get_nand_ecc_mode(struct device_n
- EXPORT_SYMBOL_GPL(of_get_nand_ecc_mode);
-
- /**
-+ * of_get_nand_ecc_algo - Get nand ecc algorithm for given device_node
-+ * @np: Pointer to the given device_node
-+ *
-+ * The function gets ecc algorithm and returns its enum value, or errno in error
-+ * case.
-+ */
-+int of_get_nand_ecc_algo(struct device_node *np)
-+{
-+ const char *pm;
-+ int err;
-+
-+ /*
-+ * TODO: Read ECC algo OF property and map it to enum nand_ecc_algo.
-+ * It's not implemented yet as currently NAND subsystem ignores
-+ * algorithm explicitly set this way. Once it's handled we should
-+ * document & support new property.
-+ */
-+
-+ /*
-+ * For backward compatibility we also read "nand-ecc-mode" checking
-+ * for some obsoleted values that were specifying ECC algorithm.
-+ */
-+ err = of_property_read_string(np, "nand-ecc-mode", &pm);
-+ if (err < 0)
-+ return err;
-+
-+ if (!strcasecmp(pm, "soft"))
-+ return NAND_ECC_HAMMING;
-+ else if (!strcasecmp(pm, "soft_bch"))
-+ return NAND_ECC_BCH;
-+
-+ return -ENODEV;
-+}
-+EXPORT_SYMBOL_GPL(of_get_nand_ecc_algo);
-+
-+/**
- * of_get_nand_ecc_step_size - Get ECC step size associated to
- * the required ECC strength (see below).
- * @np: Pointer to the given device_node
---- a/include/linux/of_mtd.h
-+++ b/include/linux/of_mtd.h
-@@ -13,6 +13,7 @@
-
- #include <linux/of.h>
- int of_get_nand_ecc_mode(struct device_node *np);
-+int of_get_nand_ecc_algo(struct device_node *np);
- int of_get_nand_ecc_step_size(struct device_node *np);
- int of_get_nand_ecc_strength(struct device_node *np);
- int of_get_nand_bus_width(struct device_node *np);
-@@ -24,6 +25,11 @@ static inline int of_get_nand_ecc_mode(s
- {
- return -ENOSYS;
- }
-+
-+static inline int of_get_nand_ecc_algo(struct device_node *np)
-+{
-+ return -ENOSYS;
-+}
-
- static inline int of_get_nand_ecc_step_size(struct device_node *np)
- {