[PATCHv2 0/4] serial: mxs-auart: devm conversion, clock rework, and IRQ ordering fixes

Rosen Penev rosenp at gmail.com
Tue Jun 9 15:37:13 PDT 2026


This series cleans up the mxs-auart driver by converting to devm-managed
resources, fixing clock prepare/enable ordering, and addressing IRQ
registration races.

Patch 1 fixes compilation on 64-bit build with W=1

Patch 2 reworks the clock handling to use devm_clk_get_enabled and
reorders clk_prepare_enable after clk_set_rate to avoid
CLK_SET_RATE_GATE failures.

Patch 3 converts iomem mapping and GPIO IRQ requests to devm,
removing the manual cleanup paths.

Patch 4 moves the main UART IRQ registration after uart_add_one_port
so the port state is initialized before the handler can run, and
manages the module clock for console vs non-console ports correctly.

v2: split off of_device_get_match_data change.

Rosen Penev (4):
  serial: mxs-auart: fix cast type for of_device_get_match_data
  serial: mxs-auart: rework clock handling in mxs_get_clks and probe
  serial: mxs-auart: use devm resources for iomem and GPIO IRQs
  serial: mxs-auart: fix IRQ registration ordering and manage console
    clock

 drivers/tty/serial/mxs-auart.c | 141 +++++++++++++++------------------
 1 file changed, 63 insertions(+), 78 deletions(-)

--
2.54.0




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