From: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org
Cc: Vinod Koul <vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Andy Gross <andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
David Brown <david.brown-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Dan Williams
<dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
yanhe-jfJNa2p1gH1BDgjK7y7TUQ@public.gmane.org,
ramkri-Rm6X0d1/PG5y9aJCnZT0Uw@public.gmane.org,
sdharia-jfJNa2p1gH1BDgjK7y7TUQ@public.gmane.org
Subject: Re: [PATCH 2/4] dmaengine: qcom: bam_dma: add num-channels binding for remotely controlled
Date: Mon, 29 Jan 2018 10:19:13 -0600 [thread overview]
Message-ID: <20180129161913.z6wgnbxcrf4q2gpm@rob-hp-laptop> (raw)
In-Reply-To: <20180116190236.14558-3-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
On Tue, Jan 16, 2018 at 07:02:34PM +0000, srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org wrote:
> From: Srinivas Kandagatla <srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
>
> When Linux is master of BAM, it can directly read registers to know number
> of supported channels, however when its remotely controlled reading these
> registers would trigger a crash if the BAM is not yet intialized/powered up
> on the remote side.
>
> This patch adds num-channels binding to specify number of supported
> dma channels on remotely controlled BAM.
>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> ---
> Documentation/devicetree/bindings/dma/qcom_bam_dma.txt | 2 ++
Reviewed-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> drivers/dma/qcom/bam_dma.c | 13 +++++++++++--
> 2 files changed, 13 insertions(+), 2 deletions(-)
--
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next prev parent reply other threads:[~2018-01-29 16:19 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-16 19:02 [PATCH 0/4] dmaengine: qcom: bam_dma: fixes for remotely controlled bam srinivas.kandagatla
2018-01-16 19:02 ` [PATCH 1/4] dmaengine: qcom: bam_dma: make bam clk optional srinivas.kandagatla
2018-01-16 19:38 ` Sagar Dharia
2018-01-17 9:46 ` Srinivas Kandagatla
2018-01-19 5:52 ` Vinod Koul
2018-01-22 9:55 ` Srinivas Kandagatla
[not found] ` <8dfa8ba1-6e98-a8e4-614c-592861cef571-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2018-01-23 9:19 ` Vinod Koul
2018-01-23 9:20 ` Srinivas Kandagatla
2018-01-16 19:02 ` [PATCH 3/4] dmaengine: qcom: bam_dma: do not write to global regs in remote mode srinivas.kandagatla
2018-01-16 19:02 ` [PATCH 4/4] dmaengine: qcom: bam_dma: Add num-ees dt binding for remotely controlled srinivas.kandagatla
[not found] ` <20180116190236.14558-5-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2018-01-29 16:21 ` Rob Herring
2018-01-30 9:18 ` Srinivas Kandagatla
[not found] ` <20180116190236.14558-1-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2018-01-16 19:02 ` [PATCH 2/4] dmaengine: qcom: bam_dma: add num-channels " srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A
2018-01-19 5:55 ` Vinod Koul
2018-01-22 9:55 ` Srinivas Kandagatla
[not found] ` <20180116190236.14558-3-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2018-01-29 16:19 ` Rob Herring [this message]
2018-01-17 10:18 ` [PATCH 0/4] dmaengine: qcom: bam_dma: fixes for remotely controlled bam Vinod Koul
2018-01-17 10:55 ` Srinivas Kandagatla
2018-01-17 15:59 ` Vinod Koul
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