kernel/git/next/linux-next.git/drivers/base/regmap, branch akpm

Merge remote-tracking branch 'regmap/for-5.20' into regmap-next

2022-06-27T20:32:43+00:00

regmap: Don't warn about cache only mode for devices with no cache

2022-06-27T12:21:59+00:00

For devices with no cache it can make sense to use cache only mode as a mechanism for trapping writes to hardware which is inaccessible but since no cache is equivalent to cache bypass we force such devices into bypass mode. This means that our check that bypass and cache only mode aren't both enabled simultanously is less sensible for devices without a cache so relax it. Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20220622171723.1235749-1-broonie@kernel.org Signed-off-by: Mark Brown

regmap-irq: Fix offset/index mismatch in read_sub_irq_data()

2022-06-22T10:59:52+00:00

We need to divide the sub-irq status register offset by register stride to get an index for the status buffer to avoid an out of bounds write when the register stride is greater than 1. Fixes: a2d21848d921 ("regmap: regmap-irq: Add main status register support") Signed-off-by: Aidan MacDonald Link: https://lore.kernel.org/r/20220620200644.1961936-3-aidanmacdonald.0x0@gmail.com Signed-off-by: Mark Brown

regmap-irq: Fix a bug in regmap_irq_enable() for type_in_mask chips

2022-06-22T10:59:51+00:00

When enabling a type_in_mask irq, the type_buf contents must be AND'd with the mask of the IRQ we're enabling to avoid enabling other IRQs by accident, which can happen if several type_in_mask irqs share a mask register. Fixes: bc998a730367 ("regmap: irq: handle HW using separate rising/falling edge interrupts") Signed-off-by: Aidan MacDonald Link: https://lore.kernel.org/r/20220620200644.1961936-2-aidanmacdonald.0x0@gmail.com Signed-off-by: Mark Brown

regmap: Wire up regmap_config provided bulk write in missed functions

2022-06-20T15:51:29+00:00

There are some functions that were missed by commit d77e74561368 ("regmap: Add bulk read/write callbacks into regmap_config") when support to define bulk read/write callbacks in regmap_config was introduced. The regmap_bulk_write() and regmap_noinc_write() functions weren't changed to use the added map->write instead of the map->bus->write handler. Also, the regmap_can_raw_write() was not modified to take map->write into account. So will only return true if a bus with a .write callback is set. Fixes: d77e74561368 ("regmap: Add bulk read/write callbacks into regmap_config") Signed-off-by: Javier Martinez Canillas Reviewed-by: Marek Vasut Link: https://lore.kernel.org/r/20220616073435.1988219-4-javierm@redhat.com Signed-off-by: Mark Brown

regmap: Make regmap_noinc_read() return -ENOTSUPP if map->read isn't set

2022-06-20T15:51:28+00:00

Before adding support to define bulk read/write callbacks in regmap_config by the commit d77e74561368 ("regmap: Add bulk read/write callbacks into regmap_config"), the regmap_noinc_read() function returned an errno early a map->bus->read callback wasn't set. But that commit dropped the check and now a call to _regmap_raw_read() is attempted even when bulk read operations are not supported. That function checks for map->read anyways but there's no point to continue if the read can't succeed. Also is a fragile assumption to make so is better to make it fail earlier. Fixes: d77e74561368 ("regmap: Add bulk read/write callbacks into regmap_config") Signed-off-by: Javier Martinez Canillas Reviewed-by: Marek Vasut Link: https://lore.kernel.org/r/20220616073435.1988219-3-javierm@redhat.com Signed-off-by: Mark Brown

regmap: Re-introduce bulk read support check in regmap_bulk_read()

2022-06-20T15:51:26+00:00

Support for drivers to define bulk read/write callbacks in regmap_config was introduced by the commit d77e74561368 ("regmap: Add bulk read/write callbacks into regmap_config"), but this commit wrongly dropped a check in regmap_bulk_read() to determine whether bulk reads can be done or not. Before that commit, it was checked if map->bus was set. Now has to check if a map->read callback has been set. Fixes: d77e74561368 ("regmap: Add bulk read/write callbacks into regmap_config") Signed-off-by: Javier Martinez Canillas Reviewed-by: Marek Vasut Link: https://lore.kernel.org/r/20220616073435.1988219-2-javierm@redhat.com Signed-off-by: Mark Brown

Merge tag 'regmap-field-bit-helpers' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into regmap-5.20

2022-06-15T17:03:19+00:00

regmap: Add regmap_field helpers for simple bit operations Add simple bit operations for setting, clearing and testing specific bits with regmap_field.

regmap: provide regmap_field helpers for simple bit operations

2022-06-15T10:17:45+00:00

We have set/clear/test operations for regmap, but not for regmap_field yet. So let's introduce regmap_field helpers too. In many instances regmap_field_update_bits() is used for simple bit setting and clearing. In these cases the last argument is redundant and we can hide it with a static inline function. This adds three new helpers for simple bit operations: set_bits, clear_bits and test_bits (the last one defined as a regular function). Signed-off-by: Li Chen Link: https://lore.kernel.org/r/180eef422c3.deae9cd960729.8518395646822099769@zohomail.com Signed-off-by: Mark Brown

regmap: cache: Fix syntax errors in comments

2022-06-06T11:38:59+00:00

Delete the redundant word 'the'. Signed-off-by: Xiang wangx Link: https://lore.kernel.org/r/20220604041603.9697-1-wangxiang@cdjrlc.com Signed-off-by: Mark Brown