Thread (28 messages) 28 messages, 7 authors, 2011-01-06

Re: [PATCH 9/9] ARM i.MX51 babbage: Add framebuffer support

From: Sascha Hauer <s.hauer@pengutronix.de>
Date: 2010-12-13 11:43:35
Also in: linux-arm-kernel, lkml

On Sun, Dec 12, 2010 at 09:37:38AM +0800, Liu Ying wrote:
Hello, Sascha,

I have following 3 comments to this patch:
1) I think DISP1_DATx pins need not be set specially, as they keep the
default register values.
We do not want to depend on default register values in the Linux Kernel.
2) Please define 'MX51_PAD_DI_GP4__IPU_DI2_PIN15' in
arch/arm/plat-mxc/include/mach/iomux-mx51.h, and rename the pin to be
'MX51_PAD_DI_GP4__DI2_PIN15', as we name it according to the MX51
iomux reference manual.
I'm not sure. Normally it's good practice to code the unit into the
name. Otherwise we end up with names like MX51_PAD_xyz__TX which could
be the tx pin of just about any unit.

3) It is better to exchange the following two lines or just remove the
first line:
+       gpio_set_value(GPIO_DVI_RESET, 0);
+       gpio_direction_output(GPIO_DVI_RESET, 0);
ok.

Sascha


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