ARM: dts: am335x-evm: fix comments for lcd pins

Message ID	1399648580-14487-1-git-send-email-wsa@the-dreams.de (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-omap-owner@kernel.org> From: Wolfram Sang <wsa@the-dreams.de> To: linux-arm-kernel@lists.infradead.org Cc: Wolfram Sang <wsa@sang-engineering.com>, Benoit Parrot <bparrot@ti.com>, =?UTF-8?q?Beno=C3=AEt=20Cousson?= <bcousson@baylibre.com>, Tony Lindgren <tony@atomide.com>, linux-omap@vger.kernel.org Subject: [PATCH] ARM: dts: am335x-evm: fix comments for lcd pins Date: Fri, 9 May 2014 17:15:50 +0200 Message-Id: <1399648580-14487-1-git-send-email-wsa@the-dreams.de> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk

Wolfram Sang May 9, 2014, 3:15 p.m. UTC

From: Wolfram Sang <wsa@sang-engineering.com>

In the comments, LCD pins 16-23 were numbered in the wrong order.
Fix this and use proper pinmux constants for all entries while we are

Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Cc: Benoit Parrot <bparrot@ti.com>
---
 arch/arm/boot/dts/am335x-evm.dts | 56 ++++++++++++++++++++--------------------
 1 file changed, 28 insertions(+), 28 deletions(-)

Etheridge, Darren May 9, 2014, 3:59 p.m. UTC | #1

Wolfram,

Wolfram Sang <wsa@the-dreams.de> wrote on Fri [2014-May-09 17:15:50 +0200]:
> From: Wolfram Sang <wsa@sang-engineering.com>
> 
> In the comments, LCD pins 16-23 were numbered in the wrong order.
> Fix this and use proper pinmux constants for all entries while we are
> 
Looks like you are absolutely correct - I just confirmed this from both
the AM335x-EVM schematic and the AM335x pinmux utility.

The same mistake is also in my EVMSK LCD enabling patch that is floating
around on this list at the moment.  I will fix that and resend it.
BeagleBone Black only uses the first 16 LCD pins so the dts for that is
correct.

Thanks for finding and fixing it.

Darren

> Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
> Cc: Benoit Parrot <bparrot@ti.com>
> ---
>  arch/arm/boot/dts/am335x-evm.dts | 56 ++++++++++++++++++++--------------------
>  1 file changed, 28 insertions(+), 28 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
> index 6028217ace0f..1b642f1cd469 100644
> --- a/arch/arm/boot/dts/am335x-evm.dts
> +++ b/arch/arm/boot/dts/am335x-evm.dts
> @@ -268,34 +268,34 @@
>  
>  	lcd_pins_s0: lcd_pins_s0 {
>  		pinctrl-single,pins = <
> -			0x20 0x01	/* gpmc_ad8.lcd_data16, OUTPUT | MODE1 */
> -			0x24 0x01	/* gpmc_ad9.lcd_data17, OUTPUT | MODE1 */
> -			0x28 0x01	/* gpmc_ad10.lcd_data18, OUTPUT | MODE1 */
> -			0x2c 0x01	/* gpmc_ad11.lcd_data19, OUTPUT | MODE1 */
> -			0x30 0x01	/* gpmc_ad12.lcd_data20, OUTPUT | MODE1 */
> -			0x34 0x01	/* gpmc_ad13.lcd_data21, OUTPUT | MODE1 */
> -			0x38 0x01	/* gpmc_ad14.lcd_data22, OUTPUT | MODE1 */
> -			0x3c 0x01	/* gpmc_ad15.lcd_data23, OUTPUT | MODE1 */
> -			0xa0 0x00	/* lcd_data0.lcd_data0, OUTPUT | MODE0 */
> -			0xa4 0x00	/* lcd_data1.lcd_data1, OUTPUT | MODE0 */
> -			0xa8 0x00	/* lcd_data2.lcd_data2, OUTPUT | MODE0 */
> -			0xac 0x00	/* lcd_data3.lcd_data3, OUTPUT | MODE0 */
> -			0xb0 0x00	/* lcd_data4.lcd_data4, OUTPUT | MODE0 */
> -			0xb4 0x00	/* lcd_data5.lcd_data5, OUTPUT | MODE0 */
> -			0xb8 0x00	/* lcd_data6.lcd_data6, OUTPUT | MODE0 */
> -			0xbc 0x00	/* lcd_data7.lcd_data7, OUTPUT | MODE0 */
> -			0xc0 0x00	/* lcd_data8.lcd_data8, OUTPUT | MODE0 */
> -			0xc4 0x00	/* lcd_data9.lcd_data9, OUTPUT | MODE0 */
> -			0xc8 0x00	/* lcd_data10.lcd_data10, OUTPUT | MODE0 */
> -			0xcc 0x00	/* lcd_data11.lcd_data11, OUTPUT | MODE0 */
> -			0xd0 0x00	/* lcd_data12.lcd_data12, OUTPUT | MODE0 */
> -			0xd4 0x00	/* lcd_data13.lcd_data13, OUTPUT | MODE0 */
> -			0xd8 0x00	/* lcd_data14.lcd_data14, OUTPUT | MODE0 */
> -			0xdc 0x00	/* lcd_data15.lcd_data15, OUTPUT | MODE0 */
> -			0xe0 0x00	/* lcd_vsync.lcd_vsync, OUTPUT | MODE0 */
> -			0xe4 0x00	/* lcd_hsync.lcd_hsync, OUTPUT | MODE0 */
> -			0xe8 0x00	/* lcd_pclk.lcd_pclk, OUTPUT | MODE0 */
> -			0xec 0x00	/* lcd_ac_bias_en.lcd_ac_bias_en, OUTPUT | MODE0 */
> +			0x20 (PIN_OUTPUT | MUX_MODE1)		/* gpmc_ad8.lcd_data23 */
> +			0x24 (PIN_OUTPUT | MUX_MODE1)		/* gpmc_ad9.lcd_data22 */
> +			0x28 (PIN_OUTPUT | MUX_MODE1)		/* gpmc_ad10.lcd_data21 */
> +			0x2c (PIN_OUTPUT | MUX_MODE1)		/* gpmc_ad11.lcd_data20 */
> +			0x30 (PIN_OUTPUT | MUX_MODE1)		/* gpmc_ad12.lcd_data19 */
> +			0x34 (PIN_OUTPUT | MUX_MODE1)		/* gpmc_ad13.lcd_data18 */
> +			0x38 (PIN_OUTPUT | MUX_MODE1)		/* gpmc_ad14.lcd_data17 */
> +			0x3c (PIN_OUTPUT | MUX_MODE1)		/* gpmc_ad15.lcd_data16 */
> +			0xa0 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data0.lcd_data0 */
> +			0xa4 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data1.lcd_data1 */
> +			0xa8 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data2.lcd_data2 */
> +			0xac (PIN_OUTPUT | MUX_MODE0)		/* lcd_data3.lcd_data3 */
> +			0xb0 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data4.lcd_data4 */
> +			0xb4 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data5.lcd_data5 */
> +			0xb8 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data6.lcd_data6 */
> +			0xbc (PIN_OUTPUT | MUX_MODE0)		/* lcd_data7.lcd_data7 */
> +			0xc0 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data8.lcd_data8 */
> +			0xc4 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data9.lcd_data9 */
> +			0xc8 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data10.lcd_data10 */
> +			0xcc (PIN_OUTPUT | MUX_MODE0)		/* lcd_data11.lcd_data11 */
> +			0xd0 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data12.lcd_data12 */
> +			0xd4 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data13.lcd_data13 */
> +			0xd8 (PIN_OUTPUT | MUX_MODE0)		/* lcd_data14.lcd_data14 */
> +			0xdc (PIN_OUTPUT | MUX_MODE0)		/* lcd_data15.lcd_data15 */
> +			0xe0 (PIN_OUTPUT | MUX_MODE0)		/* lcd_vsync.lcd_vsync */
> +			0xe4 (PIN_OUTPUT | MUX_MODE0)		/* lcd_hsync.lcd_hsync */
> +			0xe8 (PIN_OUTPUT | MUX_MODE0)		/* lcd_pclk.lcd_pclk */
> +			0xec (PIN_OUTPUT | MUX_MODE0)		/* lcd_ac_bias_en.lcd_ac_bias_en */
>  		>;
>  	};
>  
> -- 
> 1.9.2
> 
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Wolfram Sang May 9, 2014, 4:09 p.m. UTC | #2

> The same mistake is also in my EVMSK LCD enabling patch that is floating
> around on this list at the moment.  I will fix that and resend it.
> BeagleBone Black only uses the first 16 LCD pins so the dts for that is
> correct.

Well, even in the TI-based-3.2-kernel I originally got with the custom
hardware, this mistake was present in mach-omap2/mux33xx.c. No wonder it
spread from there :)

> Thanks for finding and fixing it.

Very welcome!

Etheridge, Darren May 9, 2014, 5:38 p.m. UTC | #3

Darren Etheridge <detheridge@ti.com> wrote on Fri [2014-May-09 10:59:30 -0500]:
> Wolfram,
> 
> Wolfram Sang <wsa@the-dreams.de> wrote on Fri [2014-May-09 17:15:50 +0200]:
> > From: Wolfram Sang <wsa@sang-engineering.com>
> > 
> > In the comments, LCD pins 16-23 were numbered in the wrong order.
> > Fix this and use proper pinmux constants for all entries while we are
> > 
> Looks like you are absolutely correct - I just confirmed this from both
> the AM335x-EVM schematic and the AM335x pinmux utility.
> 
> The same mistake is also in my EVMSK LCD enabling patch that is floating
> around on this list at the moment.  I will fix that and resend it.
> BeagleBone Black only uses the first 16 LCD pins so the dts for that is
> correct.
> 
> Thanks for finding and fixing it.
> 

In the process of fixing up my EVMSK patch I applied this patch and tested it
on a 3.15-rc4 kernel running on an AM335x-EVM.  Worked great - so your
pinmux constant conversion appears to be correct.

Tested-by: Darren Etheridge <detheridge@ti.com>
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Uwe Kleine-König May 12, 2014, 6:03 a.m. UTC | #4

Hi Wolfram,

On Fri, May 09, 2014 at 05:15:50PM +0200, Wolfram Sang wrote:
> From: Wolfram Sang <wsa@sang-engineering.com>
> 
> In the comments, LCD pins 16-23 were numbered in the wrong order.
> Fix this and use proper pinmux constants for all entries while we are
> 
Your sentence misses a word at the

Uwe
> Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
> Cc: Benoit Parrot <bparrot@ti.com>

Tony Lindgren May 13, 2014, 4:58 p.m. UTC | #5

* Uwe Kleine-König <u.kleine-koenig@pengutronix.de> [140511 23:04]:
> Hi Wolfram,
> 
> On Fri, May 09, 2014 at 05:15:50PM +0200, Wolfram Sang wrote:
> > From: Wolfram Sang <wsa@sang-engineering.com>
> > 
> > In the comments, LCD pins 16-23 were numbered in the wrong order.
> > Fix this and use proper pinmux constants for all entries while we are
> > 
> Your sentence misses a word at the

I'll fix and apply it into

Tony
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ARM: dts: am335x-evm: fix comments for lcd pins

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