Re: [PATCH 5/6] ARM: dts: sunxi: Add Allwinner H3 DTSI
From: Chen-Yu Tsai <hidden>
Date: 2015-05-11 08:12:15
Also in:
linux-arm-kernel, lkml
On Sat, May 9, 2015 at 7:44 PM, Maxime Ripard [off-list ref] wrote:
On Wed, May 06, 2015 at 10:47:33PM +0200, Jens Kuske wrote:quoted
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+ * You should have received a copy of the GNU General Public + * License along with this file; if not, write to the Free + * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USACould you remove that last paragraph? It generates a checkpatch warning.Sure, will be removed. Just copied it from some other sunxi dtsi.Yeah, I know, I'm even the one that introduced this in the first place :) I sent a patch earlier this week to remove it from the other DT.quoted
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+ ahb12_rst: reset@01c202c0 { + #reset-cells = <1>; + compatible = "allwinner,sun6i-a31-clock-reset"; + reg = <0x01c202c0 0xc>; + };This reset controller also resets the timers, it should be initialised much earlier. What about having an allwinner,sun8i-h3-bus-reset, and adding it to the list of compatibles to initialise earlier in drivers/reset/reset-sunxi.c? Of course, it would cover the other reset controllers that you have below.You mean using a single bus_rst instead of the three?Yes.quoted
Or, why not using allwinner,sun6i-a31-ahb1-reset for ahb12_rstStrictly speaking, they do not control the same set of devices. I'd prefer to have a different compatible in case we need to setup a particular behaviour on a given SoC (for example, force out of reset a particular device, even if no driver is actually using it), without impacting the other.quoted
and adding a .init_time = sun6i_timer_init to the sun8i machine.But we will need to do that yes.quoted
I'm a bit confused here now, because for A23, which is almost identical, it got removed after your comment: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-June/265064.htmlHmmmm, I think I somehow overlooked the fact that the timer was there, even though Chen-Yu said it. My bad :/
On the A23, the high speed timer block only has 1 timer. The sun5i-hrtimer driver requires 2, and turns out we weren't using them anyway, so I just dropped sun5i-hrtimer support on A23. If the other sun8i SoCs have 2 or more timers, feel free to support them. ChenYu