Thread (12 messages) 12 messages, 3 authors, 2016-08-23

Re: [PATCH v2 2/5] clk: sunxi-ng: mux: support fixed pre-dividers on multiple parents

From: Maxime Ripard <hidden>
Date: 2016-08-23 09:59:20
Also in: linux-arm-kernel, linux-clk, lkml

On Tue, Aug 23, 2016 at 05:52:59PM +0800, Chen-Yu Tsai wrote:
quoted
quoted
 static const char * const ahb2_parents[] = { "ahb1" , "pll-periph0" };
+static const struct ccu_mux_fixed_prediv ahb2_fixed_predivs[] = {
+     { .index = 1, .div = 2 },
+     { },
+};

[...]
--- a/drivers/clk/sunxi-ng/ccu_mux.h
+++ b/drivers/clk/sunxi-ng/ccu_mux.h
@@ -5,15 +5,18 @@

 #include "ccu_common.h"

+struct ccu_mux_fixed_prediv {
+     u8      index;
+     u16     div;
+};
+
 struct ccu_mux_internal {
      u8              shift;
      u8              width;
      const u8        *table;

-     struct {
-             u8      index;
-             u16     div;
-     } fixed_prediv;
+     const struct ccu_mux_fixed_prediv       *fixed_predivs;
+     u8              n_predivs;
I don't think you're using it anywhere (at least you don't define it
in ahb2_clk, and the extra item in the array will introduce an
off-by-one error.
The truth is I forgot to update the change in ccu-sun8i-h3.c
It is used correctly in the subsequent a31 patch. Sorry.

I'm not sure what you mean by the off-by-one error though. IIRC
we initialize the structure using named fields.
What I meant was that remember to also remove the second empty field
in ahb2_fixed_predivs.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help