Commit bb7a3fc2c976 for kernel
commit bb7a3fc2c976b5d0deb35a54ca237519816d7ba9
Merge: 348e77b81456 efdc383d1cc2
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun Feb 15 08:29:26 2026 -0800
Merge tag 'i2c-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- core: cleaner fwnode usage
- tegra: timing improvements and Tegra264 support
- lpi2c: fix SMBus block read NACK after byte count
- amd-mp2, designware, mlxbf, rtl9300, spacemit, tegra: cleanups
- designware:
- use a dedicated algorithm for AMD Navi
- replace magic numbers with named constants
- replace min_t() with min() to avoid u8 truncation
- refactor core to enable mode switching
- imx-lpi2c: add runtime PM support for IRQ and clock handling
- lan9691-i2c: add new driver
- rtl9300: use OF helpers directly and avoid fwnode handling
- spacemit: add bus reset support
- units: add HZ_PER_GHZ and use it in several i2c drivers
- at24 i2c eeprom:
- add a set of new compatibles to DT bindings
- use dev_err_probe() consistently in the driver
* tag 'i2c-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (46 commits)
i2c: imx-lpi2c: fix SMBus block read NACK after byte count
i2c: designware: Remove an unnecessary condition
i2c: designware: Enable mode swapping
i2c: designware: Combine the init functions
i2c: designware: Combine some of the common functions
i2c: designware: Use device_is_compatible() instead of custom approach
dt-bindings: eeprom: at24: Add compatible for Puya P24C128F
drivers/i2c/busses: use min() instead of min_t()
i2c: imx-lpi2c: Add runtime PM support for IRQ and clock management on i.MX8QXP/8QM
i2c: amd-mp2: clean up amd_mp2_find_device()
i2c: designware: Replace magic numbers with named constants
i2c: rtl9300: use of instead of fwnode
i2c: rtl9300: remove const cast
i2c: tegra: remove unused rst
i2c: designware: Remove not-going-to-be-supported code for Baikal SoC
i2c: spacemit: drop useless spaces
i2c: mlxbf: Use HZ_PER_KHZ in the driver
i2c: mlxbf: Remove unused bus speed definitions
i2c: core: Use dev_fwnode()
i2c: core: Replace custom implementation of device_match_fwnode()
...
diff --cc drivers/i2c/busses/i2c-imx-lpi2c.c
index d882126c1778,f97f73faec82..a01c23696481
--- a/drivers/i2c/busses/i2c-imx-lpi2c.c
+++ b/drivers/i2c/busses/i2c-imx-lpi2c.c
@@@ -592,13 -660,10 +660,17 @@@ static bool is_use_dma(struct lpi2c_imx
if (!lpi2c_imx->can_use_dma)
return false;
+ /* DMA is not suitable for SMBus block read */
+ if (msg->flags & I2C_M_RECV_LEN)
+ return false;
+
+ /*
+ * A system-wide suspend or resume transition is in progress. LPI2C should use PIO to
+ * transfer data to avoid issue caused by no ready DMA HW resource.
+ */
+ if (pm_suspend_in_progress())
+ return false;
+
/*
* When the length of data is less than I2C_DMA_THRESHOLD,
* cpu mode is used directly to avoid low performance.