Thread (42 messages) 42 messages, 6 authors, 2015-05-11

Re: [PATCH 02/12] clocksource: sti: Provide support for the ST LPC Clocksource IP

From: Lee Jones <hidden>
Date: 2015-05-08 10:28:43
Also in: linux-arm-kernel, linux-rtc, linux-watchdog, lkml

On Fri, 08 May 2015, Paul Bolle wrote:
On Thu, 2015-05-07 at 14:38 +0100, Lee Jones wrote:
quoted
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
quoted
+config CLKSRC_ST_LPC
+	bool
+	depends on ARCH_STI
By itself this does nothing. You can't set this symbol to 'y', even if
ARCH_STI is 'y', right? Of course, ARCH_STI will select this symbol (see
11/12) otherwise it would be inert. But as ARCH_STI selects
CLKSRC_ST_LPC I'd say this dependency isn't actually needed.
I guess this is more of a representative dependency, but you're right,
the likelihood is that no one is likely to accidentally enable it.

I can remove it.
Are other selects of CLKSRC_ST_LPC expected to be added in the future?
If not, CLKSRC_ST_LPC should operate in lockstep with ARCH_STI. In that
case you might as well not bother with CLKSRC_ST_LPC and use ARCH_STI
directly. (But that forces you to move the select statement below into
the ARCH_STI entry, which might be ugly.)
Although true, there might be cases where we need to stop this from
being enabled on all ARCH_STI platforms.  It'll be easier to move
CLKSRC_ST_LPC around in arch code than to start renaming this symbol.

I'd prefer to keep this as CLKSRC_ST_LPC if you're not passionate
about the alternative.
quoted
+	select CLKSRC_OF if OF
+	help
+	  Enable this option to use the Low Power controller timer
+	  as clocksource.
(Please add an empty line.)
I believe the new line comes in the next patch.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help