From 2eab123b6e643c0a11d9bc31f8a63078bf38734d Mon Sep 17 00:00:00 2001 From: Dave Penkler Date: Fri, 18 Apr 2025 19:34:29 +0200 Subject: [PATCH] staging: gpib: Enable SRQ irq on request_system_control The SRQ irq was being enabled on attach but the board is not set up to handle it until it becomes system controller. Move the enabling of the SRQ irq to bb_request_system_control. Fixes: 4cd654f84769 ("staging: gpib: Add gpio bitbang GPIB driver") Tested-by: Dave Penkler Signed-off-by: Dave Penkler Link: https://lore.kernel.org/r/20250418173434.2892-4-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/staging/gpib/gpio/gpib_bitbang.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/staging/gpib/gpio/gpib_bitbang.c b/drivers/staging/gpib/gpio/gpib_bitbang.c index a92c4eda99a0..ac9ecb6e0aad 100644 --- a/drivers/staging/gpib/gpio/gpib_bitbang.c +++ b/drivers/staging/gpib/gpio/gpib_bitbang.c @@ -884,6 +884,8 @@ static int bb_go_to_standby(struct gpib_board *board) static int bb_request_system_control(struct gpib_board *board, int request_control) { + struct bb_priv *priv = board->private_data; + dbg_printk(2, "%d\n", request_control); if (!request_control) return -EINVAL; @@ -895,6 +897,8 @@ static int bb_request_system_control(struct gpib_board *board, int request_contr gpiod_direction_input(SRQ); + ENABLE_IRQ(priv->irq_SRQ, IRQ_TYPE_EDGE_FALLING); + return 0; } @@ -1299,8 +1303,6 @@ static int bb_attach(struct gpib_board *board, const struct gpib_board_config *c IRQF_TRIGGER_NONE)) goto bb_attach_fail_r; - ENABLE_IRQ(priv->irq_SRQ, IRQ_TYPE_EDGE_FALLING); - dbg_printk(0, "attached board %d\n", board->minor); goto bb_attach_out; -- 2.51.0