From patchwork Tue Dec 10 16:13:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11282919 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 87CD915AB for ; Tue, 10 Dec 2019 16:13:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 632592077B for ; Tue, 10 Dec 2019 16:13:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727455AbfLJQNq (ORCPT ); Tue, 10 Dec 2019 11:13:46 -0500 Received: from muru.com ([72.249.23.125]:44632 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727431AbfLJQNq (ORCPT ); Tue, 10 Dec 2019 11:13:46 -0500 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 4935E80E1; Tue, 10 Dec 2019 16:14:24 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: "Andrew F . Davis" , Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH] bus: ti-sysc: Implement quirk handling for CLKDM_NOAUTO Date: Tue, 10 Dec 2019 08:13:42 -0800 Message-Id: <20191210161342.15142-1-tony@atomide.com> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org For dra7 dcan and dwc3 instances we need to block clockdomain autoidle. Let's do this with CLKDM_NOAUTO quirk flag and enable it for dcan and dwc3. Cc: Keerthy Cc: Roger Quadros Cc: Tero Kristo Signed-off-by: Tony Lindgren Acked-by: Roger Quadros --- drivers/bus/ti-sysc.c | 10 ++++++++-- include/linux/platform_data/ti-sysc.h | 1 + 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -473,7 +473,7 @@ static void sysc_clkdm_deny_idle(struct sysc *ddata) { struct ti_sysc_platform_data *pdata; - if (ddata->legacy_mode) + if (ddata->legacy_mode || (ddata->cfg.quirks & SYSC_QUIRK_CLKDM_NOAUTO)) return; pdata = dev_get_platdata(ddata->dev); @@ -485,7 +485,7 @@ static void sysc_clkdm_allow_idle(struct sysc *ddata) { struct ti_sysc_platform_data *pdata; - if (ddata->legacy_mode) + if (ddata->legacy_mode || (ddata->cfg.quirks & SYSC_QUIRK_CLKDM_NOAUTO)) return; pdata = dev_get_platdata(ddata->dev); @@ -1245,6 +1245,12 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { /* Quirks that need to be set based on detected module */ SYSC_QUIRK("aess", 0, 0, 0x10, -1, 0x40000000, 0xffffffff, SYSC_MODULE_QUIRK_AESS), + SYSC_QUIRK("dcan", 0x48480000, 0x20, -1, -1, 0xa3170504, 0xffffffff, + SYSC_QUIRK_CLKDM_NOAUTO), + SYSC_QUIRK("dwc3", 0x48880000, 0, 0x10, -1, 0x500a0200, 0xffffffff, + SYSC_QUIRK_CLKDM_NOAUTO), + SYSC_QUIRK("dwc3", 0x488c0000, 0, 0x10, -1, 0x500a0200, 0xffffffff, + SYSC_QUIRK_CLKDM_NOAUTO), SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x00000006, 0xffffffff, SYSC_MODULE_QUIRK_HDQ1W), SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x0000000a, 0xffffffff, diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h --- a/include/linux/platform_data/ti-sysc.h +++ b/include/linux/platform_data/ti-sysc.h @@ -49,6 +49,7 @@ struct sysc_regbits { s8 emufree_shift; }; +#define SYSC_QUIRK_CLKDM_NOAUTO BIT(21) #define SYSC_QUIRK_FORCE_MSTANDBY BIT(20) #define SYSC_MODULE_QUIRK_AESS BIT(19) #define SYSC_MODULE_QUIRK_SGX BIT(18)