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Date: Fri, 28 Feb 2014 17:37:18 +0100 From: Maxime Ripard <maxime.ripard@...e-electrons.com> To: Emilio Lopez <emilio@...pez.com.ar>, Dan Williams <dan.j.williams@...el.com>, Vinod Koul <vinod.koul@...el.com> Cc: Mike Turquette <mturquette@...aro.org>, linux-arm-kernel@...ts.infradead.org, dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, linux-sunxi@...glegroups.com, kevin.z.m.zh@...il.com, sunny@...winnertech.com, shuge@...winnertech.com, zhuzhenhua@...winnertech.com, Maxime Ripard <maxime.ripard@...e-electrons.com> Subject: [PATCH v2 3/5] clk: sun6i: Protect SDRAM gating bit Prevent the SDRAM controller from being gated by force-enabling it in the clock driver. Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com> --- drivers/clk/sunxi/clk-sunxi.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index a5c5882..bbbc5c0 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -1302,6 +1302,11 @@ static void __init sunxi_clock_protect(void) clk_put(clk); } + /* DDR Gating clock - sun6i */ + clk = clk_get(NULL, "ahb1_sdram"); + if (!IS_ERR(clk)) + clk_prepare_enable(clk); + /* CPU clocks - sun6i */ clk = clk_get(NULL, "cpu"); if (!IS_ERR(clk)) -- 1.9.0 -- 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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