From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754382AbdG3QsI (ORCPT ); Sun, 30 Jul 2017 12:48:08 -0400 Received: from mailoutvs7.siol.net ([213.250.19.138]:35940 "EHLO mail.siol.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754214AbdG3QsE (ORCPT ); Sun, 30 Jul 2017 12:48:04 -0400 From: Jernej Skrabec To: maxime.ripard@free-electrons.com Cc: wens@csie.org, mturquette@baylibre.com, sboyd@codeaurora.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com Subject: [PATCH 0/4] clk: sunxi-ng: Fix issues with fractional mode Date: Sun, 30 Jul 2017 18:41:46 +0200 Message-Id: <20170730164150.26302-1-jernej.skrabec@siol.net> X-Mailer: git-send-email 2.13.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org During development of H3 HDMI driver, I found some issues with setting video clock rate. It turned out that clock driver decided to use fractional mode and selected right frequency, but it didn't enable it. Additionally, fractional helpers don't wait on lock. Patch 1 adds a call to N-M clock driver which enables fractional mode. It also clears M factor before that as required by most SoCs. Patch 2 adds a call to N clock driver which enables fractional mode. Patch 3 makes fractional helpers less chatty. Patch 4 adds a wait for lock to fractional helpers. Jernej Skrabec (4): clk: sunxi-ng: Fix fractional mode for N-M clocks clk: sunxi-ng: multiplier: Fix fractional mode clk: sunxi-ng: Make fractional helper less chatty clk: sunxi-ng: Wait for lock when using fractional mode drivers/clk/sunxi-ng/ccu_frac.c | 14 ++++++++------ drivers/clk/sunxi-ng/ccu_frac.h | 2 +- drivers/clk/sunxi-ng/ccu_mult.c | 10 +++++++--- drivers/clk/sunxi-ng/ccu_nm.c | 19 ++++++++++++++++--- 4 files changed, 32 insertions(+), 13 deletions(-) -- 2.13.3