Re: [PATCH] atmel_lcdfb: Fix STN LCD support

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Haavard Skinnemoen :
On Fri, 15 Jun 2007 10:50:12 +0200
Nicolas Ferre <[email protected]> wrote:

From: Nicolas Ferre <[email protected]>

Fixes STN LCD support for the atmel_lcdfb framebuffer driver.

Signed-off-by: Nicolas Ferre <[email protected]>

Looks correct to me. Although...

Index: b/drivers/video/Kconfig
===================================================================
--- a/drivers/video/Kconfig	2007-05-14 11:02:16.000000000 +0200
+++ b/drivers/video/Kconfig	2007-06-13 11:04:10.000000000 +0200
@@ -701,6 +701,16 @@
 	  Say Y if you want to map Frame Buffer in internal SRAM. Say N if you want
 	  to let frame buffer in external SDRAM.
+config FB_ATMEL_STN
+	bool "Use a STN display with AT91/AT32 LCD Controller"
+	depends on FB_ATMEL && ARCH_AT91SAM9261
+	default n
+	help
+	  Say Y if you want to connect a STN LCD display to the AT91/AT32 LCD
+	  Controller. Say N if you want to connect a TFT.
+
+	  If unsure, say N.
+

I don't think it's appropriate to include chip-specific options here.
This option will not affect the driver at all, it will only affect the
board-specific setup code, so IMO it should be under Platform-specific
options or something like that.

True in a "code centric" point of view. I do not think it is very usable to move this switch in the board setup : The user will have to check if an option is appearing in the board menu while he select the Atmel LCD driver. He is supposed to have already selected the chip'n'board he is using. Moreover, this option will not show its nose until the board that implements it is not included in depends. (It is basically the same case with the option just above, with the very same arguments).

Also, the text says AT91/AT32 but it depends on one particular AT91
chip.

Ok, will move it to a board switch (MACH_AT91SAM9261EK for instance). This will grow as STN configuration will be implemented for boards.

Regards,
--
Nicolas Ferre


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