linux-kernel - [PATCH 3.19.y-ckt 16/86] ARM: dts: omap3-beagle: make i2c3, ddc and tfp410 gpio work again

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Message-Id: <1445981426-19727-17-git-send-email-kamal@canonical.com>
Date:	Tue, 27 Oct 2015 14:29:16 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Carl Frederik Werner <frederik@...w.eu>,
	Tony Lindgren <tony@...mide.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 16/86] ARM: dts: omap3-beagle: make i2c3, ddc and tfp410 gpio work again

3.19.8-ckt9 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Carl Frederik Werner <frederik@...w.eu>

commit 3a2fa775bd1d0579113666c1a2e37654a34018a0 upstream.

Let's fix pinmux address of gpio 170 used by tfp410 powerdown-gpio.

According to the OMAP35x Technical Reference Manual
  CONTROL_PADCONF_I2C3_SDA[15:0]  0x480021C4 mode0: i2c3_sda
  CONTROL_PADCONF_I2C3_SDA[31:16] 0x480021C4 mode4: gpio_170
the pinmux address of gpio 170 must be 0x480021C6.

The former wrong address broke i2c3 (used by hdmi ddc), resulting in
kernel message:
  omap_i2c 48060000.i2c: controller timed out

Fixes: 8cecf52befd7 ("ARM: omap3-beagle.dts: add display information")
Signed-off-by: Carl Frederik Werner <frederik@...w.eu>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 arch/arm/boot/dts/omap3-beagle.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts
index c792391..cbcbc8a 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -204,7 +204,7 @@
 
 	tfp410_pins: pinmux_tfp410_pins {
 		pinctrl-single,pins = <
-			0x194 (PIN_OUTPUT | MUX_MODE4)	/* hdq_sio.gpio_170 */
+			0x196 (PIN_OUTPUT | MUX_MODE4)	/* hdq_sio.gpio_170 */
 		>;
 	};
 
-- 
1.9.1

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