linux/drivers/mtd/maps/gpio-addr-flash.c, branch v5.8-rc3

mtd: maps: Merge gpio-addr-flash.c into physmap-core.c

2018-11-05T21:24:43Z

Controlling some MSB address lines using GPIOs is just a small deviation from the generic physmap logic, and merging those two drivers allows us to share most of the probe logic, which is a good thing. Also, the gpio-addr-flash driver is unused since the removal of the blackfin arch in v4.17, so we can safely remove the old driver without risking breaking existing boards. Signed-off-by: Boris Brezillon Reviewed-by: Ricardo Ribalda Delgado Tested-by: Ricardo Ribalda Delgado Acked-by: Linus Walleij

mtd: maps: gpio-addr-flash: Convert to gpiod

2018-10-08T19:32:58Z

Convert from legacy gpio API to gpiod. Board files will have to use gpiod_lookup_tables. Signed-off-by: Ricardo Ribalda Delgado Suggested-by: Boris Brezillon Signed-off-by: Boris Brezillon

mtd: maps: gpio-addr-flash: Replace array with an integer

2018-10-08T19:32:57Z

By replacing the array with an integer we can avoid completely the bit comparison loop if the value has not changed (by far the most common case). Signed-off-by: Ricardo Ribalda Delgado Signed-off-by: Boris Brezillon

mtd: maps: gpio-addr-flash: Use order instead of size

2018-10-08T19:32:49Z

By using the order of the window instead of the size, we can replace a lot of expensive division and modulus on the code with simple bit operations. Signed-off-by: Ricardo Ribalda Delgado Signed-off-by: Boris Brezillon

mtd: maps: gpio-addr-flash: Use devm_* functions

2018-10-05T08:20:34Z

By using devm functions we can make the code cleaner. Signed-off-by: Ricardo Ribalda Delgado Signed-off-by: Boris Brezillon

mtd: maps: gpio-addr-flash: Fix ioremapped size

2018-10-05T08:20:32Z

We should only iomap the area of the chip that is memory mapped. Otherwise we could be mapping devices beyond the memory space or that belong to other devices. Signed-off-by: Ricardo Ribalda Delgado Fixes: ebd71e3a4861 ("mtd: maps: gpio-addr-flash: fix warnings and make more portable") Cc: Signed-off-by: Boris Brezillon

mtd: maps: gpio-addr-flash: Replace custom printk

2018-10-05T08:20:31Z

Use preferred print methods dev_* Signed-off-by: Ricardo Ribalda Delgado Signed-off-by: Boris Brezillon

mtd: maps: gpio-addr-flash: add error handling for ioremap_nocache

2018-07-07T08:48:36Z

When ioremap_nocache fails, the lack of error-handling code may cause unexpected results. This patch adds error-handling code after calling ioremap_nocache. Signed-off-by: Zhouyang Jia Signed-off-by: Boris Brezillon

mtd: maps: gpio-addr-flash: show parent device in sysfs

2015-10-13T19:56:18Z

Fix a bug where mtd parent device symlinks aren't shown in sysfs. Signed-off-by: Frans Klaver Signed-off-by: Brian Norris

mtd: gpio_flash: handle case where offset + len exceeds the window size

2014-08-19T18:53:10Z

Fix the bug in handling gpio flash read/write when offset + len from MTD exceeds the window size Signed-off-by: Aaron Wu [Brian: made some commentary edits. Also note that the BUG_ON() was provably false for all non-negative inputs (since x % y <= x), so we dropped it.] Signed-off-by: Brian Norris