kernel/linux.git/drivers/spi, branch master

spi: cadence: Probe and unbind fixes

2026-05-01T01:14:39+00:00

Several fixes from Johan for issues with unbind and error handling in probe.

spi: cadence-quadspi: Probe and unbind fixes

2026-05-01T01:12:57+00:00

Several fixes from Johan for probe failure and unbind issues in the cadence-quadspi driver.

spi: amlogic-spisg: initialize completion before requesting IRQ

2026-04-28T00:57:15+00:00

Move init_completion(&spisg->completion) to before devm_request_irq() to avoid a potential race condition where an interrupt could fire before the completion structure is initialized. Fixes: cef9991e04ae ("spi: Add Amlogic SPISG driver") Signed-off-by: Felix Gu Link: https://patch.msgid.link/20260428-amlogic-spisg-v1-1-8eecc3b446d6@gmail.com Signed-off-by: Mark Brown

spi: axiado: replace usleep_range() with udelay() in IRQ path

2026-04-27T23:35:59+00:00

ax_spi_fill_tx_fifo() can be called from ax_spi_irq() which is a hard irq handler. Replace usleep_range(10, 10) with udelay(10) in atomic context. Fixes: e75a6b00ad79 ("spi: axiado: Add driver for Axiado SPI DB controller") Signed-off-by: Felix Gu Link: https://patch.msgid.link/20260428-axiado-v1-1-cd767500af72@gmail.com Signed-off-by: Mark Brown

spi: cadence-quadspi: fix runtime pm and clock imbalance on unbind

2026-04-26T23:26:37+00:00

Make sure to balance the runtime PM usage count before returning on probe failure (to allow the controller to suspend after a probe deferral) and to only drop the usage count on driver unbind to avoid a clock disable imbalance. Also restore the autosuspend setting. Fixes: 0578a6dbfe75 ("spi: spi-cadence-quadspi: add runtime pm support") Cc: stable@vger.kernel.org # 6.7 Cc: Dhruva Gole Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260421125354.1534871-5-johan@kernel.org Signed-off-by: Mark Brown

spi: cadence-quadspi: fix unclocked access on unbind

2026-04-26T23:26:36+00:00

Make sure that the controller is runtime resumed before disabling it during driver unbind to avoid an unclocked register access. This issue was flagged by Sashiko when reviewing a controller deregistration fix. Fixes: 0578a6dbfe75 ("spi: spi-cadence-quadspi: add runtime pm support") Cc: stable@vger.kernel.org # 6.7 Cc: Dhruva Gole Link: https://sashiko.dev/#/patchset/20260414134319.978196-1-johan%40kernel.org?part=2 Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260421125354.1534871-4-johan@kernel.org Signed-off-by: Mark Brown

spi: cadence-quadspi: fix clock imbalance on probe failure

2026-04-26T23:26:35+00:00

Drop the bogus runtime PM get on probe failures that was never needed and that leaks a usage count reference while preventing the clocks from being disabled (as runtime PM has not yet been enabled). Fixes: 1889dd208197 ("spi: cadence-quadspi: Fix clock disable on probe failure path") Cc: stable@vger.kernel.org # 6.19 Cc: Anurag Dutta Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260421125354.1534871-3-johan@kernel.org Signed-off-by: Mark Brown

spi: cadence-quadspi: fix runtime pm disable imbalance on probe failure

2026-04-26T23:26:35+00:00

A recent attempt to fix the probe error handling introduced a runtime PM disable depth imbalance by incorrectly disabling runtime PM on early failures (e.g. probe deferral). Fixes: f18c8cfa4f1a ("spi: cadence-qspi: Fix probe error path and remove") Cc: stable@vger.kernel.org # 7.0 Cc: Miquel Raynal (Schneider Electric) Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260421125354.1534871-2-johan@kernel.org Signed-off-by: Mark Brown

spi: cadence: fix clock imbalance on probe failure

2026-04-26T23:25:49+00:00

Make sure that the controller is active before disabling clocks on probe failure to avoid unbalanced clock disable. Also drop the usage count before returning (so that the controller can be suspended after a probe deferral) and restore the autosuspend setting. Fixes: d36ccd9f7ea4 ("spi: cadence: Runtime pm adaptation") Cc: stable@vger.kernel.org # 4.7 Cc: Shubhrajyoti Datta Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260421123615.1533617-3-johan@kernel.org Signed-off-by: Mark Brown

spi: cadence: fix unclocked access on unbind

2026-04-26T23:25:48+00:00

Make sure that the controller is runtime resumed before disabling it during driver unbind to avoid unclocked register access and unbalanced clock disable. Also restore the autosuspend setting. This issue was flagged by Sashiko when reviewing a controller deregistration fix. Fixes: d36ccd9f7ea4 ("spi: cadence: Runtime pm adaptation") Cc: stable@vger.kernel.org # 4.7 Cc: Shubhrajyoti Datta Link: https://sashiko.dev/#/patchset/20260414134319.978196-1-johan%40kernel.org?part=1 Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260421123615.1533617-2-johan@kernel.org Signed-off-by: Mark Brown