From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To: linux-mmc@vger.kernel.org
Cc: Linus Walleij <linus.walleij@linaro.org>,
Chris Ball <chris@printf.net>,
Ulf Hansson <ulf.hansson@linaro.org>,
Russell King <linux@arm.linux.org.uk>,
linux-kernel@vger.kernel.org, agross@codeaurora.org,
linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH v1] mmc: mmci: Add qcom dml support to the driver.
Date: Thu, 17 Jul 2014 20:41:05 +0100 [thread overview]
Message-ID: <53C826D1.1020609@linaro.org> (raw)
In-Reply-To: <1405625780-13503-1-git-send-email-srinivas.kandagatla@linaro.org>
On 17/07/14 20:36, Srinivas Kandagatla wrote:
> On Qualcomm APQ8064 SOCs, SD card controller has an additional glue
> called DML (Data Mover Local/Lite) to assist dma transfers.
> This hardware needs to be setup before any dma transfer is requested.
> DML itself is not a DMA engine, its just a gule between the SD card
> controller and dma controller.
>
> Most of this code has been ported from qualcomm's 3.4 kernel.
>
> This patch adds the code necessary to intialize the hardware and setup
> before doing any dma transfers.
>
> Tested-by: Prakash Burla <prakash.burla@smartplayin.com>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
Here is the change log which I forgot in the original patch
Changes since RFC:
- Moved qcom_dml.* to mmci_qcom_dml.* as suggested by Linus W.
- added BAM DMA dependency in Kconfig as suggested by Linus W
> drivers/mmc/host/Kconfig | 11 +++
> drivers/mmc/host/Makefile | 1 +
> drivers/mmc/host/mmci.c | 19 ++++-
> drivers/mmc/host/mmci_qcom_dml.c | 171 +++++++++++++++++++++++++++++++++++++++
> drivers/mmc/host/mmci_qcom_dml.h | 17 ++++
> 5 files changed, 218 insertions(+), 1 deletion(-)
> create mode 100644 drivers/mmc/host/mmci_qcom_dml.c
> create mode 100644 drivers/mmc/host/mmci_qcom_dml.h
>
thanks,
srini
next prev parent reply other threads:[~2014-07-17 19:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-11 11:48 [RFC PATCH] mmc: mmci: Add qcom dml support to the driver Srinivas Kandagatla
2014-07-11 13:49 ` Linus Walleij
2014-07-11 19:36 ` Srinivas Kandagatla
2014-07-17 19:36 ` [PATCH v1] " Srinivas Kandagatla
2014-07-17 19:41 ` Srinivas Kandagatla [this message]
2014-07-17 23:06 ` Stephen Boyd
2014-07-18 6:42 ` Srinivas Kandagatla
2014-07-18 20:53 ` [PATCH v2] " Srinivas Kandagatla
2014-07-23 14:52 ` Linus Walleij
2014-07-23 22:58 ` Stephen Boyd
2014-07-25 4:07 ` Srinivas Kandagatla
2014-07-28 6:22 ` [PATCH v3] " Srinivas Kandagatla
2014-07-29 2:50 ` [PATCH v4] " Srinivas Kandagatla
2014-07-29 17:55 ` Stephen Boyd
2014-07-30 4:12 ` Srinivas Kandagatla
2014-08-12 8:40 ` Ulf Hansson
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