Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753439AbaBXQZM (ORCPT ); Mon, 24 Feb 2014 11:25:12 -0500 Received: from top.free-electrons.com ([176.31.233.9]:54491 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752578AbaBXQZJ (ORCPT ); Mon, 24 Feb 2014 11:25:09 -0500 From: Maxime Ripard To: Emilio Lopez , Dan Williams , Vinod Koul Cc: Mike Turquette , linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-sunxi@googlegroups.com, Maxime Ripard Subject: [PATCH 3/5] clk: sun6i: Protect SDRAM gating bit Date: Mon, 24 Feb 2014 17:22:45 +0100 Message-Id: <1393258967-4843-4-git-send-email-maxime.ripard@free-electrons.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1393258967-4843-1-git-send-email-maxime.ripard@free-electrons.com> References: <1393258967-4843-1-git-send-email-maxime.ripard@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Prevent the SDRAM controller from being gated by force-enabling it in the clock driver. Signed-off-by: Maxime Ripard --- drivers/clk/sunxi/clk-sunxi.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index 6cfcd23..d9b4a41 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -1302,6 +1302,13 @@ static void __init sunxi_clock_protect(void) clk_put(clk); } + /* DDR Gating clock - sun6i */ + clk = clk_get(NULL, "ahb1_sdram"); + if (!IS_ERR(clk)) { + clk_prepare_enable(clk); + clk_put(clk); + } + /* CPU clocks - sun6i */ clk = clk_get(NULL, "cpu"); if (!IS_ERR(clk)) { -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/