From patchwork Sun Nov 4 18:26:41 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Jernej_=C5=A0krabec?= X-Patchwork-Id: 10667053 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7DB1315E9 for ; Sun, 4 Nov 2018 18:30:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6E9E229634 for ; Sun, 4 Nov 2018 18:30:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 62F0829642; Sun, 4 Nov 2018 18:30:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0A68E29634 for ; Sun, 4 Nov 2018 18:30:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387466AbeKEDnh (ORCPT ); Sun, 4 Nov 2018 22:43:37 -0500 Received: from mailoutvs22.siol.net ([185.57.226.213]:47155 "EHLO mail.siol.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2387431AbeKEDng (ORCPT ); Sun, 4 Nov 2018 22:43:36 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTP id 9AB16521282; Sun, 4 Nov 2018 19:27:41 +0100 (CET) X-Virus-Scanned: amavisd-new at psrvmta11.zcs-production.pri Received: from mail.siol.net ([127.0.0.1]) by localhost (psrvmta11.zcs-production.pri [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id G4lkHGgKQoEC; Sun, 4 Nov 2018 19:27:41 +0100 (CET) Received: from mail.siol.net (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTPS id 4BA94521270; Sun, 4 Nov 2018 19:27:41 +0100 (CET) Received: from localhost.localdomain (cpe1-8-82.cable.triera.net [213.161.8.82]) (Authenticated sender: 031275009) by mail.siol.net (Postfix) with ESMTPSA id D047E521282; Sun, 4 Nov 2018 19:27:38 +0100 (CET) From: Jernej Skrabec To: maxime.ripard@bootlin.com, wens@csie.org Cc: robh+dt@kernel.org, mturquette@baylibre.com, sboyd@kernel.org, airlied@linux.ie, architt@codeaurora.org, a.hajda@samsung.com, Laurent.pinchart@ideasonboard.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sunxi@googlegroups.com, jernej.skrabec@siol.net Subject: [PATCH v3 04/28] clk: sunxi-ng: h6: Set video PLLs limits Date: Sun, 4 Nov 2018 19:26:41 +0100 Message-Id: <20181104182705.18047-5-jernej.skrabec@siol.net> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181104182705.18047-1-jernej.skrabec@siol.net> References: <20181104182705.18047-1-jernej.skrabec@siol.net> MIME-Version: 1.0 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Video PLL factors can be set in a way that final PLL rate is outside stable range. H6 user manual specifically says that N factor should not be below 12. While it doesn't says anything about maximum stable rate, it is clear that PLL doesn't work at 6.096 GHz (254 * 24 MHz). Set minimum allowed PLL video rate to 288 MHz (12 * 24 MHz) and maximum to 2.4 GHz, which is maximum in BSP driver. Signed-off-by: Jernej Skrabec --- drivers/clk/sunxi-ng/ccu-sun50i-h6.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c index 2193e1495086..19ff09f610e4 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c +++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c @@ -120,6 +120,8 @@ static struct ccu_nm pll_video0_clk = { .n = _SUNXI_CCU_MULT_MIN(8, 8, 12), .m = _SUNXI_CCU_DIV(1, 1), /* input divider */ .fixed_post_div = 4, + .min_rate = 288000000, + .max_rate = 2400000000UL, .common = { .reg = 0x040, .features = CCU_FEATURE_FIXED_POSTDIV, @@ -136,6 +138,8 @@ static struct ccu_nm pll_video1_clk = { .n = _SUNXI_CCU_MULT_MIN(8, 8, 12), .m = _SUNXI_CCU_DIV(1, 1), /* input divider */ .fixed_post_div = 4, + .min_rate = 288000000, + .max_rate = 2400000000UL, .common = { .reg = 0x048, .features = CCU_FEATURE_FIXED_POSTDIV,