From: Jens Taprogge Date: Wed, 12 Sep 2012 12:55:24 +0000 (+0200) Subject: Staging: ipack/bridges/tpci200: Remove side effects of tpci200_{request,free}_irq. X-Git-Tag: firefly_0821_release~3680^2~1977^2~283 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9b27adbced2455bfd7e5d1b76a7f151de3d25dec;p=firefly-linux-kernel-4.4.55.git Staging: ipack/bridges/tpci200: Remove side effects of tpci200_{request,free}_irq. Use the __tpci200_{set,clear}_mask routines to access control register. Do not overwrite flags unrelated to interrupt handling. Signed-off-by: Jens Taprogge Signed-off-by: Samuel Iglesias Gonsalvez Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/ipack/bridges/tpci200.c b/drivers/staging/ipack/bridges/tpci200.c index 25605196dbac..3285dade2dd8 100644 --- a/drivers/staging/ipack/bridges/tpci200.c +++ b/drivers/staging/ipack/bridges/tpci200.c @@ -278,37 +278,18 @@ out_disable_pci: static int __tpci200_request_irq(struct tpci200_board *tpci200, struct ipack_device *dev) { - unsigned short slot_ctrl; - - /* Set the default parameters of the slot - * INT0 enabled, level sensitive - * INT1 enabled, level sensitive - * error interrupt disabled - * timeout interrupt disabled - * recover time disabled - * clock rate 8 MHz - */ - slot_ctrl = TPCI200_INT0_EN | TPCI200_INT1_EN; - writew(slot_ctrl, &tpci200->info->interface_regs->control[dev->slot]); - + __tpci200_set_mask( + &tpci200->info->interface_regs->control[dev->slot], + TPCI200_INT0_EN | TPCI200_INT1_EN); return 0; } static void __tpci200_free_irq(struct tpci200_board *tpci200, struct ipack_device *dev) { - unsigned short slot_ctrl; - - /* Set the default parameters of the slot - * INT0 disabled, level sensitive - * INT1 disabled, level sensitive - * error interrupt disabled - * timeout interrupt disabled - * recover time disabled - * clock rate 8 MHz - */ - slot_ctrl = 0; - writew(slot_ctrl, &tpci200->info->interface_regs->control[dev->slot]); + __tpci200_clear_mask( + &tpci200->info->interface_regs->control[dev->slot], + TPCI200_INT0_EN | TPCI200_INT1_EN); } static int tpci200_free_irq(struct ipack_device *dev)