From patchwork Tue Mar 23 18:43:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guru Das Srinagesh X-Patchwork-Id: 407056 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C1825C433E2 for ; Tue, 23 Mar 2021 18:44:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 94689619C8 for ; Tue, 23 Mar 2021 18:44:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232332AbhCWSoD (ORCPT ); Tue, 23 Mar 2021 14:44:03 -0400 Received: from alexa-out-sd-02.qualcomm.com ([199.106.114.39]:40219 "EHLO alexa-out-sd-02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232278AbhCWSnx (ORCPT ); Tue, 23 Mar 2021 14:43:53 -0400 Received: from unknown (HELO ironmsg05-sd.qualcomm.com) ([10.53.140.145]) by alexa-out-sd-02.qualcomm.com with ESMTP; 23 Mar 2021 11:43:53 -0700 X-QCInternal: smtphost Received: from gurus-linux.qualcomm.com (HELO gurus-linux.localdomain) ([10.46.162.81]) by ironmsg05-sd.qualcomm.com with ESMTP; 23 Mar 2021 11:43:52 -0700 Received: by gurus-linux.localdomain (Postfix, from userid 383780) id AA44A1939; Tue, 23 Mar 2021 11:43:52 -0700 (PDT) From: Guru Das Srinagesh To: Mark Brown , Markus Elfring , Lee Jones , Rob Herring Cc: Bjorn Andersson , Greg KH , Guenter Roeck , Joe Perches , Subbaraman Narayanamurthy , David Collins , Anirudh Ghayal , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Guru Das Srinagesh Subject: [PATCH v4 2/2] regmap-irq: Add driver callback to configure virtual regs Date: Tue, 23 Mar 2021 11:43:51 -0700 Message-Id: <93e7e694e6dc26333a371a19b950919c3d80595e.1616488322.git.gurus@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Enable drivers to configure and modify "virtual" registers, which are non-standard registers that further configure irq type on some devices. Since they are non-standard, enable drivers to configure them according to their particular idiosyncrasies by specifying an optional callback function while registering with the framework. Signed-off-by: Guru Das Srinagesh --- drivers/base/regmap/regmap-irq.c | 5 +++++ include/linux/regmap.h | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index d1ade76..e6343ccc 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -333,6 +333,11 @@ static int regmap_irq_set_type(struct irq_data *data, unsigned int type) default: return -EINVAL; } + + if (d->chip->set_type_virt) + return d->chip->set_type_virt(d->virt_buf, type, data->hwirq, + reg); + return 0; } diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 4c75717..7cf143ce 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -1426,6 +1426,8 @@ struct regmap_irq_sub_irq_map { * before regmap_irq_handler process the interrupts. * @handle_post_irq: Driver specific callback to handle interrupt from device * after handling the interrupts in regmap_irq_handler(). + * @set_type_virt: Driver specific callback to extend regmap_irq_set_type() + * and configure virt regs. * @irq_drv_data: Driver specific IRQ data which is passed as parameter when * driver specific pre/post interrupt handler is called. * @@ -1473,6 +1475,8 @@ struct regmap_irq_chip { int (*handle_pre_irq)(void *irq_drv_data); int (*handle_post_irq)(void *irq_drv_data); + int (*set_type_virt)(unsigned int **buf, unsigned int type, + unsigned long hwirq, int reg); void *irq_drv_data; };