diff mbox

clk: probe common clock drivers earlier

Message ID 1462435037-27979-1-git-send-email-yamada.masahiro@socionext.com
State New
Headers show

Commit Message

Masahiro Yamada May 5, 2016, 7:57 a.m. UTC
Several SoCs implement platform drivers for clocks rather than
CLK_OF_DECLARE().  Clocks should come earlier because they are
prerequisites for many of other drivers.  It will help to mitigate
EPROBE_DEFER issues.

Also, drop the comment since it does not look valuable.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

---

 drivers/Makefile | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

-- 
1.9.1

Comments

Masahiro Yamada July 16, 2016, 4:57 a.m. UTC | #1
2016-07-16 11:11 GMT+09:00 Michael Turquette <mturquette@baylibre.com>:
> Quoting Masahiro Yamada (2016-05-05 00:57:17)

>> Several SoCs implement platform drivers for clocks rather than

>> CLK_OF_DECLARE().  Clocks should come earlier because they are

>> prerequisites for many of other drivers.  It will help to mitigate

>> EPROBE_DEFER issues.

>>

>> Also, drop the comment since it does not look valuable.

>>

>> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

>

> Acked-by: Michael Turquette <mturquette@baylibre.com>

>

> Regards,

> Mike

>


Thanks for taking a look at this patch.

While I was wondering where is the best place for
"obj-y += clk/", I thought it can be probed even earlier.

So, v2 is here:
https://patchwork.kernel.org/patch/9129749/

Please consider it as a applicable candidate.

Thanks!


-- 
Best Regards
Masahiro Yamada
Masahiro Yamada July 21, 2016, 12:59 a.m. UTC | #2
2016-07-20 19:58 GMT+09:00 Geert Uytterhoeven <geert@linux-m68k.org>:
> On Sat, Jul 16, 2016 at 6:57 AM, Masahiro Yamada

> <yamada.masahiro@socionext.com> wrote:

>> 2016-07-16 11:11 GMT+09:00 Michael Turquette <mturquette@baylibre.com>:

>>> Quoting Masahiro Yamada (2016-05-05 00:57:17)

>>>> Several SoCs implement platform drivers for clocks rather than

>>>> CLK_OF_DECLARE().  Clocks should come earlier because they are

>>>> prerequisites for many of other drivers.  It will help to mitigate

>

> As are regulators, DMA engines, power domains, ..., but the actual ordering

> needed depends on the SoC.



Right.


The *mitigate* is a keyword in my git-log.

I am not saying this commit can completely suppress EPROBE_DEFER,
but moving "obj-y += clk/" up is
a right thing for *most* of SoCs.


-- 
Best Regards
Masahiro Yamada
diff mbox

Patch

diff --git a/drivers/Makefile b/drivers/Makefile
index 8f5d076..a2a4922 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -44,6 +44,7 @@  obj-$(CONFIG_REGULATOR)		+= regulator/
 
 # reset controllers early, since gpu drivers might rely on them to initialize
 obj-$(CONFIG_RESET_CONTROLLER)	+= reset/
+obj-y				+= clk/
 
 # tty/ comes before char/ so that the VT console is the boot-time
 # default.
@@ -141,8 +142,6 @@  obj-$(CONFIG_VHOST_RING)	+= vhost/
 obj-$(CONFIG_VLYNQ)		+= vlynq/
 obj-$(CONFIG_STAGING)		+= staging/
 obj-y				+= platform/
-#common clk code
-obj-y				+= clk/
 
 obj-$(CONFIG_MAILBOX)		+= mailbox/
 obj-$(CONFIG_HWSPINLOCK)	+= hwspinlock/