From 61c3e773301eaf4f2549a915c2540c99b3b12626 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Thu, 18 Jul 2019 00:33:53 -0700 Subject: [PATCH] doc: driver-model: Convert i2c-howto.txt to reST Convert plain text documentation to reStructuredText format and add it to Sphinx TOC tree. No essential content change. Signed-off-by: Bin Meng --- .../{i2c-howto.txt => i2c-howto.rst} | 36 ++++++++++--------- doc/driver-model/index.rst | 1 + 2 files changed, 20 insertions(+), 17 deletions(-) rename doc/driver-model/{i2c-howto.txt => i2c-howto.rst} (82%) diff --git a/doc/driver-model/i2c-howto.txt b/doc/driver-model/i2c-howto.rst similarity index 82% rename from doc/driver-model/i2c-howto.txt rename to doc/driver-model/i2c-howto.rst index 8ba2f6e267..938b707d3d 100644 --- a/doc/driver-model/i2c-howto.txt +++ b/doc/driver-model/i2c-howto.rst @@ -1,21 +1,23 @@ -How to port a serial driver to driver model -=========================================== +.. SPDX-License-Identifier: GPL-2.0+ + +How to port an I2C driver to driver model +========================================= Over half of the I2C drivers have been converted as at November 2016. These ones remain: - adi_i2c - davinci_i2c - fti2c010 - ihs_i2c - kona_i2c - lpc32xx_i2c - pca9564_i2c - ppc4xx_i2c - rcar_i2c - sh_i2c - soft_i2c - zynq_i2c + * adi_i2c + * davinci_i2c + * fti2c010 + * ihs_i2c + * kona_i2c + * lpc32xx_i2c + * pca9564_i2c + * ppc4xx_i2c + * rcar_i2c + * sh_i2c + * soft_i2c + * zynq_i2c The deadline for this work is the end of June 2017. If no one steps forward to convert these, at some point there may come a patch to remove them! @@ -27,14 +29,14 @@ model. Please feel free to update this file with your ideas and suggestions. - Define CONFIG_DM_I2C for your board, vendor or architecture - If the board does not already use driver model, you need CONFIG_DM also - Your board should then build, but will not work fully since there will be - no I2C driver + no I2C driver - Add the U_BOOT_DRIVER piece at the end (e.g. copy tegra_i2c.c for example) - Add a private struct for the driver data - avoid using static variables - Implement each of the driver methods, perhaps by calling your old methods - You may need to adjust the function parameters so that the old and new - implementations can share most of the existing code + implementations can share most of the existing code - If you convert all existing users of the driver, remove the pre-driver-model - code + code In terms of patches a conversion series typically has these patches: - clean up / prepare the driver for conversion diff --git a/doc/driver-model/index.rst b/doc/driver-model/index.rst index 6b8f181db1..ce857a3596 100644 --- a/doc/driver-model/index.rst +++ b/doc/driver-model/index.rst @@ -9,4 +9,5 @@ Driver Model design fdt-fixup fs_firmware_loader + i2c-howto migration -- 2.25.1