AngeloGioacchino Del Regno 63cbabb003 spmi: mtk-pmif: Keep spinlock until read is fully done ... Move the spin unlocking to after reading the contents of the PMIF_SWINF_(x)_RDATA_31_0 register in pmif_spmi_read_cmd(): since this is the only register that we can read to get the data from all of the arbitered busses, a concurrent request for reading (especially on a busy arbiter) will show a race condition and a unexpected or corrupted value may be read. Doing the entire read sequence while spin locked guarantees that concurrent access to the arbiter doesn't happen. Fixes: f200fff8d0 ("spmi: mtk-pmif: Serialize PMIF status check and command submission") Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Fixes: b45b3ccef8 ("spmi: mediatek: Add support for MT6873/8192") Link: https://patch.msgid.link/20260123182039.224314-4-sboyd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2026-01-23 19:24:38 +01:00
..
hisi-spmi-controller.c	spmi: hisi-spmi-controller: Drop duplicated OF node assignment in spmi_controller_probe()	2025-01-17 12:58:49 +01:00
Kconfig	spmi: add a spmi driver for Apple SoC	2025-05-21 14:53:17 +02:00
Makefile	spmi: add a spmi driver for Apple SoC	2025-05-21 14:53:17 +02:00
spmi-apple-controller.c	spmi: add a spmi driver for Apple SoC	2025-05-21 14:53:17 +02:00
spmi-devres.c	spmi: Return meaningful errors in spmi_controller_alloc()	2023-12-15 17:27:04 +01:00
spmi-mtk-pmif.c	spmi: mtk-pmif: Keep spinlock until read is fully done	2026-01-23 19:24:38 +01:00
spmi-pmic-arb.c	irqdomain: spmi: Switch to irq_domain_create_tree()	2025-05-21 14:53:17 +02:00
spmi.c	spmi: Set fwnode for spmi devices	2025-01-17 12:58:49 +01:00