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Date: Tue, 07 Apr 2015 16:46:46 +0900 From: Joonyoung Shim <jy0922.shim@...sung.com> To: linux-clk@...r.kernel.org Cc: linux-kernel@...r.kernel.org, mturquette@...aro.org, sboyd@...eaurora.org, haojian.zhuang@...il.com, james.hogan@...tec.com, jy0922.shim@...sung.com Subject: [PATCH 2/2] clk: divider: fix to set parent rate from CLK_DIVIDER_READ_ONLY flag The round_rate callback function will returns alway same parent clk rate of divider with CLK_DIVIDER_READ_ONLY flag. If be used CLK_SET_RATE_PARENT flag with CLK_DIVIDER_READ_ONLY flag, then never change parent clk rate anymore. >From this case, this patch allows to change parent clk rate. Signed-off-by: Joonyoung Shim <jy0922.shim@...sung.com> --- drivers/clk/clk-divider.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c index ce34d29a..37e285e 100644 --- a/drivers/clk/clk-divider.c +++ b/drivers/clk/clk-divider.c @@ -352,6 +352,11 @@ static long clk_divider_round_rate(struct clk_hw *hw, unsigned long rate, bestdiv = readl(divider->reg) >> divider->shift; bestdiv &= div_mask(divider->width); bestdiv = _get_div(divider->table, bestdiv, divider->flags); + + if ((__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT)) + *prate = __clk_round_rate(__clk_get_parent(hw->clk), + rate); + return DIV_ROUND_UP(*prate, bestdiv); } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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