From mboxrd@z Thu Jan 1 00:00:00 1970 From: srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org Subject: [PATCH v2 0/5] dmaengine: qcom: bam_dma: fixes for remotely controlled bam Date: Wed, 14 Feb 2018 14:44:54 +0000 Message-ID: <20180214144459.29813-1-srinivas.kandagatla@linaro.org> Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, david.brown-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, 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, Srinivas Kandagatla List-Id: devicetree@vger.kernel.org From: Srinivas Kandagatla Hi Andy, I did hit few issues while trying out SLIMBus BAM on DB820c, this BAM instance is remotely controlled and powered up after ADSP is booted using QMI commands. Firstly some of the master registers are written even when the BAM is remotely controlled, and secondly reading registers when bam is not ready yet. These 4 patches address these issues, there are few more issues like doing PM in simillar usecase, these will be addressed soon. Thanks, Srini Changes since v1: - Move dt bindings to separate patch - merge num-channels and num-ees driver changes - fixed few typos. - added runtime pm disable, as suggested by Sagar Srinivas Kandagatla (5): dmaengine: qcom: bam_dma: make bam clk optional dt-bindings: dmaengine: bam_dma: add remote controlled bindings dmaengine: qcom: bam_dma: get num-channels and num-ees from dt dmaengine: qcom: bam_dma: do not write to global regs in remote mode dmaengine: qcom: bam_dma: disable runtime pm on remote controlled .../devicetree/bindings/dma/qcom_bam_dma.txt | 4 ++ drivers/dma/qcom/bam_dma.c | 66 +++++++++++++++------- 2 files changed, 51 insertions(+), 19 deletions(-) -- 2.15.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html