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: 10667103 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 B64B31751 for ; Sun, 4 Nov 2018 18:42:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A939F296A9 for ; Sun, 4 Nov 2018 18:42:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9D414296B6; Sun, 4 Nov 2018 18:42:59 +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=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5BCE4296A9 for ; Sun, 4 Nov 2018 18:42:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B293B6E0B4; Sun, 4 Nov 2018 18:42:35 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.siol.net (mailoutvs32.siol.net [185.57.226.223]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4FD5E6E043 for ; Sun, 4 Nov 2018 18:27:43 +0000 (UTC) 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 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 X-Mailman-Approved-At: Sun, 04 Nov 2018 18:42:21 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, sboyd@kernel.org, mturquette@baylibre.com, jernej.skrabec@siol.net, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, airlied@linux.ie, linux-sunxi@googlegroups.com, robh+dt@kernel.org, Laurent.pinchart@ideasonboard.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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,