diff options
Diffstat (limited to 'packages/linux/linux-omap2-git/beagleboard/TWL4030-02.patch')
| -rw-r--r-- | packages/linux/linux-omap2-git/beagleboard/TWL4030-02.patch | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/packages/linux/linux-omap2-git/beagleboard/TWL4030-02.patch b/packages/linux/linux-omap2-git/beagleboard/TWL4030-02.patch new file mode 100644 index 0000000000..18b2f589c1 --- /dev/null +++ b/packages/linux/linux-omap2-git/beagleboard/TWL4030-02.patch @@ -0,0 +1,114 @@ +X-Mozilla-Status: 0001 +X-Mozilla-Status2: 00000000 +Return-Path: <linux-omap-owner@vger.kernel.org> +X-Spam-Checker-Version: SpamAssassin 3.2.2 (2007-07-23) on + morningsun.geekisp.com +X-Spam-Level: +X-Spam-Status: No, score=-3.0 required=5.0 tests=AWL,DKIM_POLICY_SIGNSOME, + DK_POLICY_SIGNSOME,RCVD_IN_DNSWL_MED autolearn=ham version=3.2.2 +Delivered-To: balister.org-philip@balister.org +Received: (qmail 17413 invoked by uid 1003); 18 Jul 2008 01:35:27 -0000 +Received: from vger.kernel.org (209.132.176.167) + by mail.geekisp.com with SMTP; 18 Jul 2008 01:35:27 -0000 +Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand + id S1757296AbYGRBf1 (ORCPT <rfc822;philip@balister.org>); + Thu, 17 Jul 2008 21:35:27 -0400 +Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751582AbYGRBf0 + (ORCPT <rfc822;linux-omap-outgoing>); + Thu, 17 Jul 2008 21:35:26 -0400 +Received: from utopia.booyaka.com ([72.9.107.138]:49362 "EHLO + utopia.booyaka.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org + with ESMTP id S1754168AbYGRBfY (ORCPT + <rfc822;linux-omap@vger.kernel.org>); Thu, 17 Jul 2008 21:35:24 -0400 +Received: (qmail 13872 invoked by uid 526); 18 Jul 2008 01:35:23 -0000 +MBOX-Line: From nobody Thu Jul 17 19:34:50 2008 +From: Paul Walmsley <paul@pwsan.com> +Subject: [PATCH 2/9] TWL4030: clear TWL GPIO interrupt status registers +To: linux-omap@vger.kernel.org +Date: Thu, 17 Jul 2008 19:34:50 -0600 +Message-ID: <20080718013449.18943.78895.stgit@localhost.localdomain> +In-Reply-To: <20080718013205.18943.34047.stgit@localhost.localdomain> +References: <20080718013205.18943.34047.stgit@localhost.localdomain> +User-Agent: StGIT/0.14.3.163.g06f9 +MIME-Version: 1.0 +Content-Type: text/plain; charset="utf-8" +Content-Transfer-Encoding: 7bit +Sender: linux-omap-owner@vger.kernel.org +Precedence: bulk +List-ID: <linux-omap.vger.kernel.org> +X-Mailing-List: linux-omap@vger.kernel.org + +twl_init_irq() does not clear the TWL GPIO ISR registers, but the PIH +ISR thinks that it has. This causes any previously-latched GPIO interrupts +to be stuck on until twl4030-gpio.c initializes, often drowning the console in + + TWL4030 module irq 368 is disabled but can't be masked! + +messages. This seems to be a particular problem when booting on Beagle. + +Signed-off-by: Paul Walmsley <paul@pwsan.com> +--- + + drivers/i2c/chips/twl4030-core.c | 42 ++++++++++++++++++++++++++++++++++++++ + 1 files changed, 42 insertions(+), 0 deletions(-) + +diff --git a/drivers/i2c/chips/twl4030-core.c b/drivers/i2c/chips/twl4030-core.c +index ff662bc..dfc3805 100644 +--- a/drivers/i2c/chips/twl4030-core.c ++++ b/drivers/i2c/chips/twl4030-core.c +@@ -857,6 +857,48 @@ static void twl_init_irq(void) + return; + } + ++ /* GPIO_ISR1A */ ++ res = twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x19); ++ if (res < 0) { ++ pr_err("%s[%d][%d]\n", msg, res, __LINE__); ++ return; ++ } ++ ++ /* GPIO_ISR2A */ ++ res = twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x1a); ++ if (res < 0) { ++ pr_err("%s[%d][%d]\n", msg, res, __LINE__); ++ return; ++ } ++ ++ /* GPIO_ISR3A */ ++ res = twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x1b); ++ if (res < 0) { ++ pr_err("%s[%d][%d]\n", msg, res, __LINE__); ++ return; ++ } ++ ++ /* GPIO_ISR1B */ ++ res = twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x1f); ++ if (res < 0) { ++ pr_err("%s[%d][%d]\n", msg, res, __LINE__); ++ return; ++ } ++ ++ /* GPIO_ISR2B */ ++ res = twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x20); ++ if (res < 0) { ++ pr_err("%s[%d][%d]\n", msg, res, __LINE__); ++ return; ++ } ++ ++ /* GPIO_ISR3B */ ++ res = twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x21); ++ if (res < 0) { ++ pr_err("%s[%d][%d]\n", msg, res, __LINE__); ++ return; ++ } ++ + /* install an irq handler for each of the PIH modules */ + for (i = TWL4030_IRQ_BASE; i < TWL4030_IRQ_END; i++) { + set_irq_chip(i, &twl4030_irq_chip); + + +-- +To unsubscribe from this list: send the line "unsubscribe linux-omap" in +the body of a message to majordomo@vger.kernel.org +More majordomo info at http://vger.kernel.org/majordomo-info.html + |