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From: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
	industrypack-devel@lists.sourceforge.net,
	Jens Taprogge <jens.taprogge@taprogge.org>,
	Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Subject: [PATCH 02/24] Staging: ipack/bridges/tpci200: Remove side effects of tpci200_{request,free}_irq.
Date: Wed, 12 Sep 2012 14:55:24 +0200	[thread overview]
Message-ID: <1347454546-23236-2-git-send-email-siglesias@igalia.com> (raw)
In-Reply-To: <1347454546-23236-1-git-send-email-siglesias@igalia.com>

From: Jens Taprogge <jens.taprogge@taprogge.org>

Use the __tpci200_{set,clear}_mask routines to access control
register.  Do not overwrite flags unrelated to interrupt handling.

Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
---
 drivers/staging/ipack/bridges/tpci200.c |   31 ++++++-------------------------
 1 file changed, 6 insertions(+), 25 deletions(-)

diff --git a/drivers/staging/ipack/bridges/tpci200.c b/drivers/staging/ipack/bridges/tpci200.c
index 2560519..3285dad 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)
-- 
1.7.10.4


  reply	other threads:[~2012-09-12 13:06 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-12 12:55 [PATCH 01/24] Staging: ipack/bridges/tpci200: add helpers for writing control regs Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` Samuel Iglesias Gonsalvez [this message]
2012-09-12 12:55 ` [PATCH 03/24] Staging: ipack/bridges/tpci200: Clean up interrupt handler Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 04/24] Staging: ipack/devices/ipoctal: split ipoctal_channel from ipoctal Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 05/24] Staging: ipack/devices/ipoctal: Directly use ioread/iowrite function Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 06/24] Staging: ipack/devices/ipoctal: put ipoctal_channel into tty->driver_data Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 07/24] Staging: ipack/devices/ipoctal: Store isr masks in ipoctal_channel Samuel Iglesias Gonsalvez
2012-09-13 17:43   ` Dan Carpenter
2012-09-13 17:49     ` Dan Carpenter
2012-09-13 18:19       ` Joe Perches
2012-09-13 18:43         ` Jens Taprogge
2012-09-13 19:17           ` Dan Carpenter
2012-09-14  0:25             ` Joe Perches
2012-09-12 12:55 ` [PATCH 08/24] Staging: ipack/devices/ipoctal: Split interrupt service routine Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 09/24] Staging: ipack/devices/ipoctal: remove superfluous function Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 10/24] Staging: ipack/bridges/tpci200: RCU protect slot_irq pointers Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 11/24] Staging: ipack/bridges/tpci200: Protect device registers with spinlock Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 12/24] Staging: ipack/bridges/tpci200: Clean up interrupt handling Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 13/24] Staging: ipack/bridges/tpci200: Cleanup in tpci200_slot_irq() and tpci200_interrupt() Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 14/24] Staging: ipack/bridges/tpci200: More cleanups Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 15/24] Staging: ipack/bridges/tpci200: move tpci200_free_irq() and tpci200_request_irq() Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 16/24] Staging: ipack: Let interrupts return irqreturn_t Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 17/24] Staging: ipack/devices/ipoctal: Clean up device removal Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 18/24] Staging: ipack/devices/ipoctal: Check tty_register_device return value Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 19/24] Staging: ipack/devices/ipoctal: Use KBUILD_MODNAME instead of hardcoded string Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 20/24] Staging: ipack/devices/ipoctal: Get rid of ipoctal_list Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 21/24] Staging: ipack/devices/ipoctal: read more than one character from RX FIFO Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 22/24] Staging: ipack: update TODO file Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 23/24] Staging: ipack/devices/ipoctal: Unmap memory on device removal Samuel Iglesias Gonsalvez
2012-09-12 12:55 ` [PATCH 24/24] staging: ipack/bridges/tpci200: Use endianess-aware types where applicable Samuel Iglesias Gonsalvez

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