From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Chen-Yu Tsai , Maxime Ripard Subject: [PATCH 3.10 50/62] clk: sunxi: Support factor clocks with N factor starting not from 0 Date: Mon, 16 Mar 2015 15:10:07 +0100 Message-Id: <20150316140935.443296876@linuxfoundation.org> In-Reply-To: <20150316140933.139548981@linuxfoundation.org> References: <20150316140933.139548981@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chen-Yu Tsai commit 9a5e6c7eb5ccbb5f0d3a1dffce135f0a727f40e1 upstream. The PLLs on newer Allwinner SoC's, such as the A31 and A23, have a N multiplier factor that starts from 1, not 0. This patch adds an option to the factor clk driver's config data structures to specify the base value of N. Signed-off-by: Chen-Yu Tsai Acked-by: Maxime Ripard Signed-off-by: Maxime Ripard Signed-off-by: Greg Kroah-Hartman --- drivers/clk/sunxi/clk-factors.c | 2 +- drivers/clk/sunxi/clk-factors.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) --- a/drivers/clk/sunxi/clk-factors.c +++ b/drivers/clk/sunxi/clk-factors.c @@ -70,7 +70,7 @@ static unsigned long clk_factors_recalc_ p = FACTOR_GET(config->pshift, config->pwidth, reg); /* Calculate the rate */ - rate = (parent_rate * n * (k + 1) >> p) / (m + 1); + rate = (parent_rate * (n + config->n_start) * (k + 1) >> p) / (m + 1); return rate; } --- a/drivers/clk/sunxi/clk-factors.h +++ b/drivers/clk/sunxi/clk-factors.h @@ -15,6 +15,7 @@ struct clk_factors_config { u8 mwidth; u8 pshift; u8 pwidth; + u8 n_start; }; struct clk *clk_register_factors(struct device *dev, const char *name,