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Groups > linux.kernel > #1201482
| From | Jaehoon Chung <jh80.chung@samsung.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC PATCH v4 0/9] |
| Date | 2015-08-06 09:10 +0200 |
| Message-ID | <pUnto-1Db-7@gated-at.bofh.it> (permalink) |
| References | <pUna2-10Y-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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... 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(-) > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[RFC PATCH v4 0/9] Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 08:50 +0200
[RFC PATCH v4 2/9] Documentation: synopsys-dw-mshc: add bindings for idmac and edmac Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 08:50 +0200
[RFC PATCH v4 5/9] arm: exynos_defconfig: remove CONFIG_MMC_DW_IDMAC Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 08:50 +0200
Re: [RFC PATCH v4 5/9] arm: exynos_defconfig: remove CONFIG_MMC_DW_IDMAC Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-08-06 09:10 +0200
[RFC PATCH v4 6/9] arm: hisi_defconfig: remove CONFIG_MMC_DW_IDMAC Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 08:50 +0200
Re: [RFC PATCH v4 6/9] arm: hisi_defconfig: remove CONFIG_MMC_DW_IDMAC Wei Xu <xuwei5@hisilicon.com> - 2015-08-13 12:30 +0200
[RFC PATCH v4 3/9] mips: pistachio_defconfig: remove CONFIG_MMC_DW_IDMAC Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 08:50 +0200
RE: [RFC PATCH v4 3/9] mips: pistachio_defconfig: remove CONFIG_MMC_DW_IDMAC Govindraj Raja <Govindraj.Raja@imgtec.com> - 2015-08-06 11:10 +0200
Re: [RFC PATCH v4 3/9] mips: pistachio_defconfig: remove CONFIG_MMC_DW_IDMAC Ralf Baechle <ralf@linux-mips.org> - 2015-08-06 15:20 +0200
Re: [RFC PATCH v4 3/9] mips: pistachio_defconfig: remove CONFIG_MMC_DW_IDMAC Ralf Baechle <ralf@linux-mips.org> - 2015-08-13 00:10 +0200
Re: [RFC PATCH v4 3/9] mips: pistachio_defconfig: remove CONFIG_MMC_DW_IDMAC Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-13 02:10 +0200
[RFC PATCH v4 1/9] mmc: dw_mmc: Add external dma interface support Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 08:50 +0200
Re: [RFC PATCH v4 1/9] mmc: dw_mmc: Add external dma interface support Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-08-06 09:10 +0200
Re: [RFC PATCH v4 1/9] mmc: dw_mmc: Add external dma interface support Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 09:30 +0200
Re: [RFC PATCH v4 1/9] mmc: dw_mmc: Add external dma interface support Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-08-06 09:40 +0200
Re: [RFC PATCH v4 1/9] mmc: dw_mmc: Add external dma interface support Joachim Eastwood <manabian@gmail.com> - 2015-08-07 23:40 +0200
Re: [RFC PATCH v4 1/9] mmc: dw_mmc: Add external dma interface support Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-08 02:00 +0200
Re: [RFC PATCH v4 1/9] mmc: dw_mmc: Add external dma interface support Alim Akhtar <alim.akhtar@gmail.com> - 2015-08-10 20:10 +0200
Re: [RFC PATCH v4 1/9] mmc: dw_mmc: Add external dma interface support Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-11 01:40 +0200
[RFC PATCH v4 4/9] arc: axs10x_defconfig: remove CONFIG_MMC_DW_IDMAC Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 08:50 +0200
Re: [RFC PATCH v4 4/9] arc: axs10x_defconfig: remove CONFIG_MMC_DW_IDMAC Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2015-08-07 07:50 +0200
[RFC PATCH v4 9/9] arm: zx_defconfig: remove CONFIG_MMC_DW_IDMAC Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 09:00 +0200
[RFC PATCH v4 7/9] arm: lpc18xx_defconfig: remove CONFIG_MMC_DW_IDMAC Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 09:00 +0200
Re: [RFC PATCH v4 7/9] arm: lpc18xx_defconfig: remove CONFIG_MMC_DW_IDMAC Joachim Eastwood <manabian@gmail.com> - 2015-08-07 23:40 +0200
[RFC PATCH v4 8/9] arm: multi_v7_defconfig: remove CONFIG_MMC_DW_IDMAC Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 09:00 +0200
Re: [RFC PATCH v4 0/9] Jaehoon Chung <jh80.chung@samsung.com> - 2015-08-06 09:10 +0200
Re: [RFC PATCH v4 0/9] Jaehoon Chung <jh80.chung@samsung.com> - 2015-08-06 09:40 +0200
Re: [RFC PATCH v4 0/9] Shawn Lin <shawn.lin@rock-chips.com> - 2015-08-06 09:40 +0200
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