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Tue, 29 Oct 2019 10:36:51 +0000 (GMT) Subject: Re: [PATCH] clk: samsung: exynos5420: Preserve CPU clocks configuration during suspend/resume To: Marian Mihailescu Cc: linux-samsung-soc@vger.kernel.org, linux-clk From: Sylwester Nawrocki Message-ID: <97a6583c-3c5c-40c0-3bcf-9017e9bc2773@samsung.com> Date: Tue, 29 Oct 2019 11:36:50 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20191029005025.4476-1-mihailescu2m@gmail.com> Content-Language: en-GB Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpjleLIzCtJLcpLzFFi42LZduznOV1nsR2xBpf+qlp87LnHajHj/D4m i/XTfrI6MHvsnHWX3ePzJrkApigum5TUnMyy1CJ9uwSujItHnjEWLOGsmLy+qIHxNnsXIyeH hICJxNQnzWxdjFwcQgIrGCXu/PvODuF8YZT49f0/lPOZUeJP9x5mmJZz004zgthCAssZJd7t q4Aoesso8WPOSxaQhLBAhsStR69YQWwRAT2J/wt3sYHYzAI+Eq/bm8F2swkYSvQe7QMbxCtg J7H69W2wGhYBVYlTDQeYuhg5OEQFIiROf02EKBGUODnzCdh4TgFria13dzJCjBSXaPqykhXC lpfY/nYOM8g9EgL/2SRu7znNCnG0i8Tcef+YIGxhiVfHt0D9LyNxenIPC0RDM6NEz+7b7BDO BEaJ+8cXMEJUWUscPn6RFeQiZgFNifW79CHCjhJvDuwCO1RCgE/ixltBiCP4JCZtm84MEeaV 6GgTgqhWkfi9ajrUCVIS3U/+s0xgVJqF5LVZSN6ZheSdWQh7FzCyrGIUTy0tzk1PLTbMSy3X K07MLS7NS9dLzs/dxAhMHaf/Hf+0g/HrpaRDjAIcjEo8vBMub4sVYk0sK67MPcQowcGsJMJ7 8QxQiDclsbIqtSg/vqg0J7X4EKM0B4uSOG81w4NoIYH0xJLU7NTUgtQimCwTB6dUA2OK4V2L q4uaz50X8NoVdJb3QoH40loPma7Oc9fM15gKna8xUVgntmy1/0XXz8erQ/+6Pb830zqqpOdq jPLJvba5x3KiAi/tmpm3d24219Hfn9L02DJupHikJldNS5ll6jed8UhZob72OzuJ+Ak9Hhkp GxOzGH5dcTL885B9UvecFXtMXuy4ckyJpTgj0VCLuag4EQAfx2HzGQMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprJIsWRmVeSWpSXmKPExsVy+t/xu7rOYjtiDf7uF7b42HOP1WLG+X1M Fuun/WR1YPbYOesuu8fnTXIBTFF6NkX5pSWpChn5xSW2StGGFkZ6hpYWekYmlnqGxuaxVkam Svp2NimpOZllqUX6dgl6GRePPGMsWMJZMXl9UQPjbfYuRk4OCQETiXPTTjN2MXJxCAksZZQ4 +HkaSxcjB1BCSmJ+ixJEjbDEn2tdbBA1rxkluu9tZARJCAtkSNx69IoVxBYR0JP4v3AXVFEf o8S8S9uZQRLMAj4Sr9ubwbaxCRhK9B7tA2vmFbCTWP36NhuIzSKgKnGq4QATiC0qECHxfPsN qBpBiZMzn7CA2JwC1hJb7+5khJipLvFn3iWo+eISTV9WskLY8hLb385hnsAoNAtJ+ywkLbOQ tMxC0rKAkWUVo0hqaXFuem6xoV5xYm5xaV66XnJ+7iZGYLRsO/Zz8w7GSxuDDzEKcDAq8fBO uLwtVog1say4MvcQowQHs5II78UzQCHelMTKqtSi/Pii0pzU4kOMpkDPTWSWEk3OB0ZyXkm8 oamhuYWlobmxubGZhZI4b4fAwRghgfTEktTs1NSC1CKYPiYOTqkGRtfoH11xC+x7DSdsvikx QXvL+oJu/s7MOVsrWLcnyc3IvXTT7cpX5bPtRhob83ce6lX3ZGtz69BwiJ71noe9XmvXw9Xh v9dMftuz7z27Xt6hzEYLi1NS+w40aD0J4t15YqJMzZmHc5ZF7N/yfsrCex/cfzddd5uYuqhq zhGp74kXz3HeWjH1XKASS3FGoqEWc1FxIgAtrSBRrAIAAA== X-CMS-MailID: 20191029103651eucas1p17564e2615c30666d791249cf73a5f7a6 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20191029005041epcas3p3be88dd1df53b124f5642259784d8b1c6 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20191029005041epcas3p3be88dd1df53b124f5642259784d8b1c6 References: <20191029005025.4476-1-mihailescu2m@gmail.com> Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org On 10/29/19 01:50, Marian Mihailescu wrote: > Save and restore top PLL related configuration registers for big (APLL) > and LITTLE (KPLL) cores during suspend/resume cycle. So far, CPU clocks > were reset to default values after suspend/resume cycle and performance > after system resume was affected when performance governor has been selected. > > Fixes: 773424326b51 ("clk: samsung: exynos5420: add more registers to restore list") > Signed-off-by: Marian Mihailescu Patch applied, thank you. Please remember to also Cc in future any clk patches to the linux-clk@vger.kernel.org mailing list. > --- > drivers/clk/samsung/clk-exynos5420.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c > index 403b5a367a5b..3a991ca1ee36 100644 > --- a/drivers/clk/samsung/clk-exynos5420.c > +++ b/drivers/clk/samsung/clk-exynos5420.c > @@ -165,6 +165,8 @@ static const unsigned long exynos5x_clk_regs[] __initconst = { > GATE_BUS_CPU, > GATE_SCLK_CPU, > CLKOUT_CMU_CPU, > + APLL_CON0, > + KPLL_CON0, > CPLL_CON0, > DPLL_CON0, > EPLL_CON0,