On 08/06/2015 04:31 PM, Shawn Lin wrote: > 在 2015/8/6 15:08, Jaehoon Chung 写道: >> 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(-) >>> >> >> >> > > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
