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From: Chen-Yu Tsai <wens@csie.org>
To: Maxime Ripard <maxime.ripard@free-electrons.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@codeaurora.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>
Cc: Chen-Yu Tsai <wens@csie.org>,
	linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org,
	linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com
Subject: [PATCH v3 03/10] clk: sunxi-ng: a83t: Support new timing mode for mmc2 clock
Date: Mon, 24 Jul 2017 21:58:58 +0800	[thread overview]
Message-ID: <20170724135905.28855-4-wens@csie.org> (raw)
In-Reply-To: <20170724135905.28855-1-wens@csie.org>

The MMC2 clock supports a new timing mode. When the new mode is active,
the output clock rate is halved.

This patch sets the feature flag for the new timing mode, and adds
a pre-divider based on the mode bit.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 drivers/clk/sunxi-ng/ccu-sun8i-a83t.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c b/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c
index 947f9f6e05d2..e43acebdfbcd 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c
@@ -418,14 +418,8 @@ static SUNXI_CCU_PHASE(mmc1_sample_clk, "mmc1-sample", "mmc1",
 static SUNXI_CCU_PHASE(mmc1_output_clk, "mmc1-output", "mmc1",
 		       0x08c, 8, 3, 0);
 
-/* TODO Support MMC2 clock's new timing mode. */
-static SUNXI_CCU_MP_WITH_MUX_GATE(mmc2_clk, "mmc2", mod0_default_parents,
-				  0x090,
-				  0, 4,		/* M */
-				  16, 2,	/* P */
-				  24, 2,	/* mux */
-				  BIT(31),	/* gate */
-				  0);
+static SUNXI_CCU_MP_MMC_WITH_MUX_GATE(mmc2_clk, "mmc2", mod0_default_parents,
+				      0x090, 0);
 
 static SUNXI_CCU_PHASE(mmc2_sample_clk, "mmc2-sample", "mmc2",
 		       0x090, 20, 3, 0);
-- 
2.13.3


  reply	other threads:[~2017-07-24 13:58 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-24 13:58 [PATCH v3 00/10] ARM: sun8i: a83t: Add support for MMC controllers Chen-Yu Tsai
2017-07-24 13:58 ` Chen-Yu Tsai [this message]
     [not found]   ` <20170724135905.28855-4-wens-jdAy2FN1RRM@public.gmane.org>
2017-07-25  7:33     ` [PATCH v3 03/10] clk: sunxi-ng: a83t: Support new timing mode for mmc2 clock Maxime Ripard
     [not found] ` <20170724135905.28855-1-wens-jdAy2FN1RRM@public.gmane.org>
2017-07-24 13:58   ` [PATCH v3 01/10] clk: sunxi-ng: Add interface to query or configure MMC timing modes Chen-Yu Tsai
2017-07-25  7:32     ` Maxime Ripard
2017-07-24 13:58   ` [PATCH v3 02/10] clk: sunxi-ng: Add MP_MMC clocks that support MMC timing modes switching Chen-Yu Tsai
2017-07-25  7:32     ` Maxime Ripard
2017-07-24 13:58   ` [PATCH v3 04/10] mmc: sunxi: Support controllers that can use both old and new timings Chen-Yu Tsai
2017-07-24 13:59   ` [PATCH v3 05/10] mmc: sunxi: Support MMC DDR52 transfer mode with new timing mode Chen-Yu Tsai
2017-07-24 13:59   ` [PATCH v3 06/10] mmc: sunxi: Add support for A83T eMMC (MMC2) Chen-Yu Tsai
2017-07-24 13:59   ` [PATCH v3 07/10] ARM: dts: sun8i: a83t: Add MMC controller device nodes Chen-Yu Tsai
     [not found]     ` <20170724135905.28855-8-wens-jdAy2FN1RRM@public.gmane.org>
2017-07-25  7:33       ` Maxime Ripard
2017-07-24 13:59   ` [PATCH v3 08/10] ARM: dts: sun8i: a83t: Add pingroup for 8-bit eMMC on mmc2 Chen-Yu Tsai
     [not found]     ` <20170724135905.28855-9-wens-jdAy2FN1RRM@public.gmane.org>
2017-07-25  7:35       ` Maxime Ripard
2017-07-24 13:59   ` [PATCH v3 09/10] ARM: dts: sun8i: a83t: cubietruck-plus: Enable micro-SD card and eMMC Chen-Yu Tsai
     [not found]     ` <20170724135905.28855-10-wens-jdAy2FN1RRM@public.gmane.org>
2017-07-25  7:38       ` Maxime Ripard
2017-07-24 13:59   ` [PATCH v3 10/10] ARM: dts: sun8i: a83t: h8homlet: Enable micro-SD card and onboard eMMC Chen-Yu Tsai
2017-07-25  7:39     ` Maxime Ripard
2017-07-26 14:09 ` [PATCH v3 00/10] ARM: sun8i: a83t: Add support for MMC controllers Chen-Yu Tsai
     [not found]   ` <CAGb2v66DQ3H2Mta7h+t1P+UzSRLnMABRebeYcopaPkN0gOiwxA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-07-26 19:45     ` Maxime Ripard
2017-08-03 11:19       ` Ulf Hansson
     [not found]         ` <CAPDyKFrssySjKW0E7sB3D-UjVea8_Yxvrkkr7sKf47x6jwgVSQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-03 11:25           ` Chen-Yu Tsai
     [not found]             ` <CAGb2v648K1Nguf8nVjfunow7+xwS0MHazzMXJd1xZ3uNM2WesA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-03 12:02               ` Ulf Hansson
2017-08-04  2:16                 ` Chen-Yu Tsai

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