Stephan Gerhold d4f35233a6 i2c: qup: Vote for interconnect bandwidth to DRAM ... When the I2C QUP controller is used together with a DMA engine it needs to vote for the interconnect path to the DRAM. Otherwise it may be unable to access the memory quickly enough. The requested peak bandwidth is dependent on the I2C core clock. To avoid sending votes too often the bandwidth is always requested when a DMA transfer starts, but dropped only on runtime suspend. Runtime suspend should only happen if no transfer is active. After resumption we can defer the next vote until the first DMA transfer actually happens. The implementation is largely identical to the one introduced for spi-qup in commit ecdaa94730 ("spi: qup: Vote for interconnect bandwidth to DRAM") since both drivers represent the same hardware block. Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20231128-i2c-qup-dvfs-v1-3-59a0e3039111@kernkonzept.com		2025-03-18 21:53:53 +01:00
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algos	i2c: algo: bit: allow getsda to be NULL	2023-01-23 23:15:49 +01:00
busses	i2c: qup: Vote for interconnect bandwidth to DRAM	2025-03-18 21:53:53 +01:00
muxes	i2c: mux: remove incorrect of_match_ptr annotations	2025-03-18 21:53:53 +01:00
i2c-atr.c	i2c: atr: Fix client detach	2025-01-09 11:08:01 +01:00
i2c-boardinfo.c
i2c-core-acpi.c	i2c: Force ELAN06FA touchpad I2C bus freq to 100KHz	2025-01-14 13:01:31 +01:00
i2c-core-base.c	i2c: core: Allocate temporary client dynamically	2025-02-22 10:27:37 +01:00
i2c-core-of-prober.c	module: Convert symbol namespace to string literal	2024-12-02 11:34:44 -08:00
i2c-core-of.c	Char/Misc drivers for 6.4-rc1	2023-04-27 12:07:50 -07:00
i2c-core-slave.c	i2c: simplify with scoped for each OF child loop	2024-09-03 12:01:52 +02:00
i2c-core-smbus.c	i2c: Fix whitespace style issue	2024-11-27 12:23:43 +01:00
i2c-core.h	i2c: core: Fix atomic xfer check for non-preempt config	2024-01-06 14:10:10 +01:00
i2c-dev.c	i2c: dev: Fix memory leak when underlying adapter does not support I2C	2024-11-14 11:22:57 +01:00
i2c-mux.c	i2c: mux: Remove class argument from i2c_mux_add_adapter()	2024-05-13 16:13:19 +02:00
i2c-slave-eeprom.c	i2c: slave-eeprom: Constify 'struct bin_attribute'	2025-01-09 10:48:44 +01:00
i2c-slave-testunit.c	i2c: testunit: on errors, repeat NACK until STOP	2025-01-15 19:44:21 +01:00
i2c-smbus.c	i2c: support gpio-binding for SMBAlerts	2024-10-08 11:04:20 +02:00
i2c-stub.c	i2c: stub: Don't let i2c adapters declare I2C_CLASS_SPD support if they support I2C_CLASS_HWMON	2024-01-18 21:10:41 +01:00
Kconfig	i2c: Remove I2C_COMPAT config symbol and related code	2024-09-07 18:31:28 +02:00
Makefile	i2c: Introduce OF component probe function	2024-11-27 12:04:10 +01:00