From patchwork Thu Sep 12 13:26:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tero Kristo X-Patchwork-Id: 11143065 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 D942816B1 for ; Thu, 12 Sep 2019 13:26:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B777C20856 for ; Thu, 12 Sep 2019 13:26:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="R5Sx57oF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732114AbfILN0k (ORCPT ); Thu, 12 Sep 2019 09:26:40 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:41666 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732098AbfILN0k (ORCPT ); Thu, 12 Sep 2019 09:26:40 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id x8CDQbaQ049583; Thu, 12 Sep 2019 08:26:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1568294797; bh=K2Q92adlyOlFE+55nlrsCH8twyZ1qvVGlSQOn8cJ0jo=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=R5Sx57oFPzATZ7B13TRpt+LVvRAA0YJuP5aYxx+jWwNQS8vfMX2aRi0AnKQvVctj6 rd3Gyqgm0kY4w4SV8D22PnJimdgujRGc8b6mV/24mjp7YJFQ9zha7YqPb9IcnowqyP SLlcNO9g8efjY/UQmGU1UXuIXex4Rfpf5mIkFftk= Received: from DLEE115.ent.ti.com (dlee115.ent.ti.com [157.170.170.26]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id x8CDQbGA071418; Thu, 12 Sep 2019 08:26:37 -0500 Received: from DLEE101.ent.ti.com (157.170.170.31) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Thu, 12 Sep 2019 08:26:37 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE101.ent.ti.com (157.170.170.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Thu, 12 Sep 2019 08:26:37 -0500 Received: from sokoban.bb.dnainternet.fi (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id x8CDQFvZ130575; Thu, 12 Sep 2019 08:26:35 -0500 From: Tero Kristo To: , , , CC: , Subject: [PATCHv3 10/10] clk: ti: am33xx: drop idlest polling from pruss clkctrl clock Date: Thu, 12 Sep 2019 16:26:13 +0300 Message-ID: <20190912132613.28093-11-t-kristo@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190912132613.28093-1-t-kristo@ti.com> References: <20190912132613.28093-1-t-kristo@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org The PRUSS module on AM33xx SoCs has a hardreset line and is controlled by a PRCM reset line. Any clkctrl enable/disable operations cannot be checked for module enabled/disabled status independent of the reset operation, and this causes some unwanted timeouts in the kernel and unbalanced states for the PRUSS clocks. These details should be handled by the driver integration code itself. Add the CLKF_NO_IDLEST flag to the PRUSS clkctrl clock so that these module status checks are skipped. Signed-off-by: Tero Kristo --- drivers/clk/ti/clk-33xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/ti/clk-33xx.c b/drivers/clk/ti/clk-33xx.c index a360d3109555..935efb66b389 100644 --- a/drivers/clk/ti/clk-33xx.c +++ b/drivers/clk/ti/clk-33xx.c @@ -107,7 +107,7 @@ static const struct omap_clkctrl_reg_data am3_l4hs_clkctrl_regs[] __initconst = }; static const struct omap_clkctrl_reg_data am3_pruss_ocp_clkctrl_regs[] __initconst = { - { AM3_PRUSS_OCP_PRUSS_CLKCTRL, NULL, CLKF_SW_SUP, "pruss_ocp_gclk" }, + { AM3_PRUSS_OCP_PRUSS_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "pruss_ocp_gclk" }, { 0 }, };