From: jh80.chung@samsung•com (Jaehoon Chung)
To: linux-arm-kernel@lists•infradead.org
Subject: [RFC PATCH v4 0/9]
Date: Thu, 06 Aug 2015 16:33:42 +0900 [thread overview]
Message-ID: <55C30DD6.8020802@samsung.com> (raw)
In-Reply-To: <55C30D52.6040802@rock-chips.com>
On 08/06/2015 04:31 PM, Shawn Lin wrote:
> ? 2015/8/6 15:08, Jaehoon Chung ??:
>> Hi, Shawn.
>>
>> I remembered that Krzysztof has mentioned "Fix the title of cover letter."
>> Your cover letter's title is nothing.. "[RFC PATCH v4 0/9] " ??
>> [RFC PATCH v4 0/9] your title...
> Sorry, I forgot it, and will fix in next version...
No problem :)
At next time, add the title at your cover-letter, plz.
Best Regards,
Jaehoon Chung
>
>> Best Regards,
>> Jaehoon Chung
>>
>> On 08/06/2015 03:44 PM, Shawn Lin wrote:
>>> Add external dma support for Synopsys MSHC
>>>
>>> Synopsys DesignWare mobile storage host controller supports three
>>> types of transfer mode: pio, internal dma and external dma. However,
>>> dw_mmc can only supports pio and internal dma now. Thus some platforms
>>> using dw-mshc integrated with generic dma can't work in dma mode. So we
>>> submit this patch to achieve it.
>>>
>>> And the config option, CONFIG_MMC_DW_IDMAC, was added by Will Newton
>>> (commit:f95f3850) for the first version of dw_mmc and never be touched since
>>> then. At that time dt-bindings hadn't been introduced into dw_mmc yet means
>>> we should select CONFIG_MMC_DW_IDMAC to enable internal dma mode at compile
>>> time. Nowadays, device-tree helps us to support a variety of boards with one
>>> kernel. That's why we need to remove it and decide the transfer mode by reading
>>> dw_mmc's HCON reg at runtime.
>>>
>>> This RFC patch needs lots of ACKs. I know it's hard, but it does need someone
>>> to make the running.
>>>
>>> Patch does the following things:
>>> - remove CONFIG_MMC_DW_IDMAC config option
>>> - add bindings for edmac used by synopsys-dw-mshc
>>> at runtime
>>> - add edmac support for synopsys-dw-mshc
>>>
>>> Patch is based on next of git://git.linaro.org/people/ulf.hansson/mmc
>>>
>>>
>>> Changes in v4:
>>> - remove "host->trans_mode" and use "host->use_dma" to indicate
>>> transfer mode.
>>> - remove all bt-bindings' changes since we don't need new properities.
>>> - check transfer mode at runtime by reading HCON reg
>>> - spilt defconfig changes for each sub-architecture
>>> - fix the title of cover letter
>>> - reuse some code for reducing code size
>>>
>>> Changes in v3:
>>> - choose transfer mode at runtime
>>> - remove all CONFIG_MMC_DW_IDMAC config option
>>> - add supports-idmac property for some platforms
>>>
>>> Changes in v2:
>>> - Fix typo of dev_info msg
>>> - remove unused dmach from declaration of dw_mci_dma_slave
>>>
>>> Shawn Lin (9):
>>> mmc: dw_mmc: Add external dma interface support
>>> Documentation: synopsys-dw-mshc: add bindings for idmac and edmac
>>> mips: pistachio_defconfig: remove CONFIG_MMC_DW_IDMAC
>>> arc: axs10x_defconfig: remove CONFIG_MMC_DW_IDMAC
>>> arm: exynos_defconfig: remove CONFIG_MMC_DW_IDMAC
>>> arm: hisi_defconfig: remove CONFIG_MMC_DW_IDMAC
>>> arm: lpc18xx_defconfig: remove CONFIG_MMC_DW_IDMAC
>>> arm: multi_v7_defconfig: remove CONFIG_MMC_DW_IDMAC
>>> arm: zx_defconfig: remove CONFIG_MMC_DW_IDMAC
>>>
>>> .../devicetree/bindings/mmc/synopsys-dw-mshc.txt | 25 ++
>>> arch/arc/configs/axs101_defconfig | 1 -
>>> arch/arc/configs/axs103_defconfig | 1 -
>>> arch/arc/configs/axs103_smp_defconfig | 1 -
>>> arch/arm/configs/exynos_defconfig | 1 -
>>> arch/arm/configs/hisi_defconfig | 1 -
>>> arch/arm/configs/lpc18xx_defconfig | 1 -
>>> arch/arm/configs/multi_v7_defconfig | 1 -
>>> arch/arm/configs/zx_defconfig | 1 -
>>> arch/mips/configs/pistachio_defconfig | 1 -
>>> drivers/mmc/host/Kconfig | 11 +-
>>> drivers/mmc/host/dw_mmc-pltfm.c | 2 +
>>> drivers/mmc/host/dw_mmc.c | 258 +++++++++++++++++----
>>> include/linux/mmc/dw_mmc.h | 27 ++-
>>> 14 files changed, 257 insertions(+), 75 deletions(-)
>>>
>>
>>
>>
>
>
next prev parent reply other threads:[~2015-08-06 7:33 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1438843469-23807-1-git-send-email-shawn.lin@rock-chips.com>
2015-08-06 7:08 ` [RFC PATCH v4 0/9] Jaehoon Chung
[not found] ` <55C30D52.6040802@rock-chips.com>
2015-08-06 7:33 ` Jaehoon Chung [this message]
[not found] ` <1438843539-24017-1-git-send-email-shawn.lin@rock-chips.com>
2015-08-06 7:08 ` [RFC PATCH v4 5/9] arm: exynos_defconfig: remove CONFIG_MMC_DW_IDMAC Krzysztof Kozlowski
[not found] ` <1438843515-23935-1-git-send-email-shawn.lin@rock-chips.com>
2015-08-06 9:05 ` [RFC PATCH v4 3/9] mips: pistachio_defconfig: " Govindraj Raja
2015-08-06 13:17 ` Ralf Baechle
2015-08-12 22:05 ` Ralf Baechle
2015-08-13 0:08 ` Shawn Lin
[not found] ` <1438843526-23976-1-git-send-email-shawn.lin@rock-chips.com>
2015-08-07 5:48 ` [RFC PATCH v4 4/9] arc: axs10x_defconfig: " Vineet Gupta
[not found] ` <1438843491-23853-1-git-send-email-shawn.lin@rock-chips.com>
2015-08-06 7:08 ` [RFC PATCH v4 1/9] mmc: dw_mmc: Add external dma interface support Krzysztof Kozlowski
[not found] ` <55C30C1C.6070801@rock-chips.com>
2015-08-06 7:37 ` Krzysztof Kozlowski
2015-08-07 21:32 ` Joachim Eastwood
2015-08-07 23:37 ` Shawn Lin
2015-08-10 18:03 ` Alim Akhtar
[not found] ` <1438843590-24101-1-git-send-email-shawn.lin@rock-chips.com>
2015-08-07 21:34 ` [RFC PATCH v4 7/9] arm: lpc18xx_defconfig: remove CONFIG_MMC_DW_IDMAC Joachim Eastwood
[not found] ` <1438843553-24058-1-git-send-email-shawn.lin@rock-chips.com>
2015-08-13 10:18 ` [RFC PATCH v4 6/9] arm: hisi_defconfig: " Wei Xu
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