From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1X9rS6-0002a6-FI for barebox@lists.infradead.org; Wed, 23 Jul 2014 07:59:07 +0000 From: Sascha Hauer Date: Wed, 23 Jul 2014 09:58:41 +0200 Message-Id: <1406102321-14416-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH] clk: clk-divider: divider calculation in clk_set_rate needs DIV_ROUND_UP To: barebox@lists.infradead.org To make the resulting rate is always smaller than the desired rate, and not bigger. Signed-off-by: Sascha Hauer --- drivers/clk/clk-divider.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c index 67783da..506a966 100644 --- a/drivers/clk/clk-divider.c +++ b/drivers/clk/clk-divider.c @@ -186,7 +186,7 @@ static int clk_divider_set_rate(struct clk *clk, unsigned long rate, div = clk_divider_bestdiv(clk, rate, &best_parent_rate); clk_set_rate(clk_get_parent(clk), best_parent_rate); } else { - div = parent_rate / rate; + div = DIV_ROUND_UP(parent_rate, rate); } value = _get_val(divider, div); -- 2.0.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox