From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Subject: Re: [PATCH] arm64: dts: renesas: r8a7796: Add CMT device nodes References: <1540542307-63158-1-git-send-email-biju.das@bp.renesas.com> From: Daniel Lezcano Message-ID: <1be47ef6-1a92-e032-12c1-1deae5b67960@linaro.org> Date: Mon, 19 Nov 2018 11:26:29 +0100 MIME-Version: 1.0 In-Reply-To: <1540542307-63158-1-git-send-email-biju.das@bp.renesas.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit To: Biju Das , Rob Herring , Mark Rutland Cc: Simon Horman , Magnus Damm , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, Geert Uytterhoeven , Chris Paterson , Thomas Gleixner , John Stultz , Fabrizio Castro List-ID: On 26/10/2018 10:25, Biju Das wrote: > This patch adds CMT{0|1|2|3} device nodes for r8a7796 SoC. > > Signed-off-by: Biju Das > --- > This patch is tested against renesas-dev > > I have executed on inconsistency-check, nanosleep and clocksource_switch > selftests on this arm64 SoC. The inconsistency-check and nanosleep tests > are working fine.The clocksource_switch asynchronous test is failing due > to inconsistency-check failure on "arch_sys_counter". > > But if i skip the clocksource_switching of "arch_sys_counter", the > asynchronous test is passing for CMT0/1/2/3 timer. > > Has any one noticed this issue? So now that you mention that, I've been through the clocksource_switch on another ARM64 platform (hikey960) and disabled the ARM64_ERRATUM_858921 config option. I can see the same issue. Is this option set on your config ? -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog