linux-kernel - [PATCH] ARM: imx6q: Add missing esai

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Message-ID: <1389236699-10387-1-git-send-email-Guangyu.Chen@freescale.com>
Date:	Thu, 9 Jan 2014 11:04:59 +0800
From:	Nicolin Chen <Guangyu.Chen@...escale.com>
To:	<shawn.guo@...aro.org>, <kernel@...gutronix.de>
CC:	<linux@....linux.org.uk>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <rob.herring@...xeda.com>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<devicetree@...r.kernel.org>, <rob@...dley.net>
Subject: [PATCH] ARM: imx6q: Add missing esai_ahb clock to current clock tree

esai_ahb clock is derived from ahb and used to provide ESAI the capability of
register accessing and FSYS clock source for I2S clocks dividing. Although the
gate of this esai_ahb is duplicated with esai clock -- the baud clock, yet
considering about the differences of their clock rates, it's quite essential
to patch this missing clock.

Signed-off-by: Nicolin Chen <Guangyu.Chen@...escale.com>
---
 Documentation/devicetree/bindings/clock/imx6q-clock.txt | 1 +
 arch/arm/mach-imx/clk-imx6q.c                           | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.txt b/Documentation/devicetree/bindings/clock/imx6q-clock.txt
index 6aab72b..90ec91f 100644
--- a/Documentation/devicetree/bindings/clock/imx6q-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx6q-clock.txt
@@ -220,6 +220,7 @@ clocks and IDs.
 	lvds2_sel		205
 	lvds1_gate		206
 	lvds2_gate		207
+	esai_ahb		208
 
 Examples:
 
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index af2e582..20215b9 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -107,7 +107,7 @@ enum mx6q_clks {
 	sata_ref, sata_ref_100m, pcie_ref, pcie_ref_125m, enet_ref, usbphy1_gate,
 	usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, eim_slow,
 	spdif, cko2_sel, cko2_podf, cko2, cko, vdoa, pll4_audio_div,
-	lvds1_sel, lvds2_sel, lvds1_gate, lvds2_gate, clk_max
+	lvds1_sel, lvds2_sel, lvds1_gate, lvds2_gate, esai_ahb, clk_max
 };
 
 static struct clk *clk[clk_max];
@@ -355,6 +355,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	clk[ecspi5]       = imx_clk_gate2("ecspi5",        "ecspi_root",        base + 0x6c, 8);
 	clk[enet]         = imx_clk_gate2("enet",          "ipg",               base + 0x6c, 10);
 	clk[esai]         = imx_clk_gate2("esai",          "esai_podf",         base + 0x6c, 16);
+	clk[esai_ahb]     = imx_clk_gate2("esai_ahb",      "ahb",               base + 0x6c, 16);
 	clk[gpt_ipg]      = imx_clk_gate2("gpt_ipg",       "ipg",               base + 0x6c, 20);
 	clk[gpt_ipg_per]  = imx_clk_gate2("gpt_ipg_per",   "ipg_per",           base + 0x6c, 22);
 	if (cpu_is_imx6dl())
-- 
1.8.4


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