From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759427AbbA0TGG (ORCPT ); Tue, 27 Jan 2015 14:06:06 -0500 Received: from mail-oi0-f46.google.com ([209.85.218.46]:49039 "EHLO mail-oi0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751970AbbA0TGE (ORCPT ); Tue, 27 Jan 2015 14:06:04 -0500 From: Soren Brinkmann To: Michal Simek , Mike Turquette , Stephen Boyd Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Soren Brinkmann , stable@vger.kernel.org Subject: [PATCH v2] clk: zynq: Force CPU_2X clock to be ungated Date: Tue, 27 Jan 2015 11:05:27 -0800 Message-Id: <1422385549-2550-1-git-send-email-soren.brinkmann@xilinx.com> X-Mailer: git-send-email 2.2.2.1.g63c5777 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The CPU_2X clock does not have a classical in-kernel user, but is, amongst other things, required for OCM and debug access. Make sure this clock is not mistakenly disabled during boot up by enabling it in the platform's clock driver. Cc: stable@vger.kernel.org # 3.11+ Fixes: 0ee52b157b8e 'clk: zynq: Add clock controller driver' Signed-off-by: Soren Brinkmann --- v2: - Fixed some typo's in the commit message - added Fixes and Cc tags to commit message As reference, the v1 submission: https://patchwork.kernel.org/patch/5698251/ --- drivers/clk/zynq/clkc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c index 9037bebd69f7..f870aad57711 100644 --- a/drivers/clk/zynq/clkc.c +++ b/drivers/clk/zynq/clkc.c @@ -303,6 +303,7 @@ static void __init zynq_clk_setup(struct device_node *np) clks[cpu_2x] = clk_register_gate(NULL, clk_output_name[cpu_2x], "cpu_2x_div", CLK_IGNORE_UNUSED, SLCR_ARM_CLK_CTRL, 26, 0, &armclk_lock); + clk_prepare_enable(clks[cpu_2x]); clk = clk_register_fixed_factor(NULL, "cpu_1x_div", "cpu_div", 0, 1, 4 + 2 * tmp); -- 2.2.2.1.g63c5777 From mboxrd@z Thu Jan 1 00:00:00 1970 From: soren.brinkmann@xilinx.com (Soren Brinkmann) Date: Tue, 27 Jan 2015 11:05:27 -0800 Subject: [PATCH v2] clk: zynq: Force CPU_2X clock to be ungated Message-ID: <1422385549-2550-1-git-send-email-soren.brinkmann@xilinx.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The CPU_2X clock does not have a classical in-kernel user, but is, amongst other things, required for OCM and debug access. Make sure this clock is not mistakenly disabled during boot up by enabling it in the platform's clock driver. Cc: stable at vger.kernel.org # 3.11+ Fixes: 0ee52b157b8e 'clk: zynq: Add clock controller driver' Signed-off-by: Soren Brinkmann --- v2: - Fixed some typo's in the commit message - added Fixes and Cc tags to commit message As reference, the v1 submission: https://patchwork.kernel.org/patch/5698251/ --- drivers/clk/zynq/clkc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c index 9037bebd69f7..f870aad57711 100644 --- a/drivers/clk/zynq/clkc.c +++ b/drivers/clk/zynq/clkc.c @@ -303,6 +303,7 @@ static void __init zynq_clk_setup(struct device_node *np) clks[cpu_2x] = clk_register_gate(NULL, clk_output_name[cpu_2x], "cpu_2x_div", CLK_IGNORE_UNUSED, SLCR_ARM_CLK_CTRL, 26, 0, &armclk_lock); + clk_prepare_enable(clks[cpu_2x]); clk = clk_register_fixed_factor(NULL, "cpu_1x_div", "cpu_div", 0, 1, 4 + 2 * tmp); -- 2.2.2.1.g63c5777