kernel/linux.git/drivers/base/regmap, branch v6.2.6

regmap: apply reg_base and reg_downshift for single register ops

2023-03-10T08:28:36+00:00

[ Upstream commit 697c3892d825fb78f42ec8e53bed065dd728db3e ] reg_base and reg_downshift currently don't have any effect if used with a regmap_bus or regmap_config which only offers single register operations (ie. reg_read, reg_write and optionally reg_update_bits). Fix that and take them into account also for regmap_bus with only reg_read and read_write operations by applying reg_base and reg_downshift in _regmap_bus_reg_write, _regmap_bus_reg_read. Also apply reg_base and reg_downshift in _regmap_update_bits, but only in case the operation is carried out with a reg_update_bits call defined in either regmap_bus or regmap_config. Fixes: 0074f3f2b1e43d ("regmap: allow a defined reg_base to be added to every address") Fixes: 86fc59ef818beb ("regmap: add configurable downshift for addresses") Signed-off-by: Daniel Golle Tested-by: Colin Foster Link: https://lore.kernel.org/r/Y9clyVS3tQEHlUhA@makrotopia.org Signed-off-by: Mark Brown Signed-off-by: Sasha Levin

regmap: Merge fix for where we get the number of registers from

2022-12-12T11:50:58+00:00

This didn't get sent for 6.1 since we should do a better fix but that didn't happen in time.

regmap-irq: Add handle_mask_sync() callback

2022-12-09T17:39:33+00:00

Provide a public callback handle_mask_sync() that drivers can use when they have more complex IRQ masking logic. The default implementation is regmap_irq_handle_mask_sync(), used if the chip doesn't provide its own callback. Cc: Mark Brown Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/e083474b3d467a86e6cb53da8072de4515bd6276.1669100542.git.william.gray@linaro.org Signed-off-by: Mark Brown

fsi: Add regmap and refactor sbefifo

2022-11-25T21:26:29+00:00

Merge series from Eddie James : The SBEFIFO hardware can now be attached over a new I2C endpoint interface called the I2C Responder (I2CR). In order to use the existing SBEFIFO driver, add a regmap driver for the FSI bus and an endpoint driver for the I2CR. Then, refactor the SBEFIFO and OCC drivers to clean up and use the new regmap driver or the I2CR interface. This branch just has the regmap change so it can be shared with the FSI code.

regmap: Add FSI bus support

2022-11-25T19:17:02+00:00

Add regmap support for the FSI bus. Signed-off-by: Eddie James Link: https://lore.kernel.org/r/20221102205148.1334459-2-eajames@linux.ibm.com Signed-off-by: Mark Brown

regmap: add regmap_might_sleep()

2022-11-22T12:23:17+00:00

With the dawn of MMIO gpio-regmap users, it is desirable to let gpio-regmap ask the regmap if it might sleep during an access so it can pass that information to gpiochip. Add a new regmap_might_sleep() to query the regmap. Signed-off-by: Michael Walle Link: https://lore.kernel.org/r/20221121150843.1562603-1-michael@walle.cc Signed-off-by: Mark Brown

regmap-irq: Use the new num_config_regs property in regmap_add_irq_chip_fwnode

2022-11-09T18:30:44+00:00

Commit faa87ce9196d ("regmap-irq: Introduce config registers for irq types") added the num_config_regs, then commit 9edd4f5aee84 ("regmap-irq: Deprecate type registers and virtual registers") suggested to replace num_type_reg with it. However, regmap_add_irq_chip_fwnode wasn't modified to use the new property. Later on, commit 255a03bb1bb3 ("ASoC: wcd9335: Convert irq chip to config regs") removed the old num_type_reg property from the WCD9335 driver's struct regmap_irq_chip, causing a null pointer dereference in regmap_irq_set_type when it tried to index d->type_buf as it was never allocated in regmap_add_irq_chip_fwnode: [ 39.199374] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 39.200006] Call trace: [ 39.200014] regmap_irq_set_type+0x84/0x1c0 [ 39.200026] __irq_set_trigger+0x60/0x1c0 [ 39.200040] __setup_irq+0x2f4/0x78c [ 39.200051] request_threaded_irq+0xe8/0x1a0 Use num_config_regs in regmap_add_irq_chip_fwnode instead of num_type_reg, and fall back to it if num_config_regs isn't defined to maintain backward compatibility. Fixes: faa87ce9196d ("regmap-irq: Introduce config registers for irq types") Signed-off-by: Yassine Oudjana Link: https://lore.kernel.org/r/20221107202114.823975-1-y.oudjana@protonmail.com Signed-off-by: Mark Brown

Merge tag 'regmap-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

2022-10-05T02:12:16+00:00

Pull regmap updates from Mark Brown: "This has been a busy release for regmap with one thing and other, there's been an especially large interest in MMIO regmaps for some reason. The bulk of the changes are cleanups but there are several user visible changes too: - Support for I/O ports in regmap-mmio - Support for accelerated noinc operations in regmap-mmio - Support for tracing the register values in bulk operations" * tag 'regmap-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: mmio: replace return 0 with break in switch statement regmap: spi-avmm: Use swabXX_array() helpers regmap: mmio: Use swabXX_array() helpers swab: Add array operations regmap: trace: Remove unneeded blank lines regmap: trace: Remove explicit castings regmap: trace: Remove useless check for NULL for bulk ops regmap: mmio: Fix rebase error regmap: check right noinc bounds in debug print regmap: introduce value tracing for regmap bulk operations regmap/hexagon: Properly fix the generic IO helpers regmap: mmio: Support accelerared noinc operations regmap: Support accelerated noinc operations regmap: Make use of get_unaligned_be24(), put_unaligned_be24() regmap: mmio: Fix MMIO accessors to avoid talking to IO port regmap: mmio: Introduce IO accessors that can talk to IO port regmap: mmio: Get rid of broken 64-bit IO regmap: mmio: Remove mmio_relaxed member from context

regmap: mmio: replace return 0 with break in switch statement

2022-09-22T11:33:18+00:00

Variable min_stride is assigned a value that is never read, fix this by replacing the return 0 with a break statement. This also makes the case statement consistent with the other cases in the switch statement. Signed-off-by: Colin Ian King Link: https://lore.kernel.org/r/20220922080445.818020-1-colin.i.king@gmail.com Signed-off-by: Mark Brown

regmap: spi-avmm: Use swabXX_array() helpers

2022-09-07T11:42:27+00:00

Since we have a few helpers to swab elements of a given size in an array use them instead of open coded variants. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20220831212744.56435-3-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown