From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Date: Wed, 30 Sep 2015 06:44:35 +0000 Subject: Re: [PATCH 30/31] ARM: shmobile: r8a7791: add USB-DMAC device nodes Message-Id: List-Id: References: <560B11FF.3010305@cogentembedded.com> In-Reply-To: <560B11FF.3010305@cogentembedded.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org Hi Sergei, On Wed, Sep 30, 2015 at 12:34 AM, Sergei Shtylyov wrote: > On 05/14/2015 04:06 AM, Simon Horman wrote: > >> From: Yoshihiro Shimoda >> >> Signed-off-by: Yoshihiro Shimoda >> Acked-by: Geert Uytterhoeven >> Signed-off-by: Simon Horman >> --- >> arch/arm/boot/dts/r8a7791.dtsi | 22 ++++++++++++++++++++++ >> 1 file changed, 22 insertions(+) > > > When the USB-DMAC driver is enabled, this causes kernel oops on at least > the R8A7791 Henninger/Porter boards (haven't checked the others yet) with > renesas-devel-20150928-v4.3-rc3 and even earlier tag. The oops can only be > seen with the earlyprintk=serial kernel parameter, otherwise the kernel just > hangs with a blank console. My current kernel on r8a7791/koelsch has CONFIG_RENESAS_USB_DMAC=y and boots fine. renesas-devel-20150928-v4.3-rc3 with shmobile_defconfig + CONFIG_RENESAS_USB_DMAC=y also boots fine. Do I need to enable/disable config options to trigger this? Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds From mboxrd@z Thu Jan 1 00:00:00 1970 From: geert@linux-m68k.org (Geert Uytterhoeven) Date: Wed, 30 Sep 2015 08:44:35 +0200 Subject: [PATCH 30/31] ARM: shmobile: r8a7791: add USB-DMAC device nodes In-Reply-To: <560B11FF.3010305@cogentembedded.com> References: <560B11FF.3010305@cogentembedded.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Sergei, On Wed, Sep 30, 2015 at 12:34 AM, Sergei Shtylyov wrote: > On 05/14/2015 04:06 AM, Simon Horman wrote: > >> From: Yoshihiro Shimoda >> >> Signed-off-by: Yoshihiro Shimoda >> Acked-by: Geert Uytterhoeven >> Signed-off-by: Simon Horman >> --- >> arch/arm/boot/dts/r8a7791.dtsi | 22 ++++++++++++++++++++++ >> 1 file changed, 22 insertions(+) > > > When the USB-DMAC driver is enabled, this causes kernel oops on at least > the R8A7791 Henninger/Porter boards (haven't checked the others yet) with > renesas-devel-20150928-v4.3-rc3 and even earlier tag. The oops can only be > seen with the earlyprintk=serial kernel parameter, otherwise the kernel just > hangs with a blank console. My current kernel on r8a7791/koelsch has CONFIG_RENESAS_USB_DMAC=y and boots fine. renesas-devel-20150928-v4.3-rc3 with shmobile_defconfig + CONFIG_RENESAS_USB_DMAC=y also boots fine. Do I need to enable/disable config options to trigger this? Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds