[{"id":1773631,"web_url":"http://patchwork.ozlabs.org/comment/1773631/","msgid":"<0540562c-889d-bced-d36f-a08f3d40bc53@samsung.com>","list_archive_url":null,"date":"2017-09-22T14:15:36","subject":"Re: [U-Boot] [PATCH v3 0/2] power: Add a driver to handle the PBIAS\n\tcell of the TI SOCs","submitter":{"id":8006,"url":"http://patchwork.ozlabs.org/api/people/8006/","name":"Jaehoon Chung","email":"jh80.chung@samsung.com"},"content":"On 09/22/2017 12:03 AM, Jean-Jacques Hiblot wrote:\n> In the TI SOCs a PBIAS cell exists to provide a bias voltage to the MMC1\n> IO cells. Without this bias voltage these I/O cells can not function\n> properly. This bias voltage is either 1.8v or 3.0v.\n> \n> The first patch adds 2 functions to the DM core: to count strings in a\n> stringlist and get a string from a stringlist based on its position in the\n> list.\n> The second patch implements the support for this PBIAS cell as a regulator\n> driver.\n\nApplied to u-boot-mmc for pmic.\n\nBest Regards,\nJaehoon Chung\n\n> \n> Jean-Jacques\n> \n> \n> changes since v2:\n> * rebased on u-boot/master\n> * automatically select REGMAP and SYSCON if PBIAS is selected.\n> \n> changes since v1:\n> - add new functions to get strings from a stringlist in DM core\n> - use the dev_read_*() API to access the DT\n> - automatically select the PBIAS driver if DM_REGULATOR, DM_MMC and\n> MMC_OMAP_HS are set.\n> - removed the patch touching the DRA7 and AM57 config files.\n> \n> \n> Jean-Jacques Hiblot (2):\n> dm: core: Add functions to get strings and the string count from a\n> stringlist\n> regulator: pbias: Add PBIAS regulator for proper voltage switching on\n> MMC1\n> \n> drivers/core/read.c | 11 ++\n> drivers/mmc/Kconfig | 1 +\n> drivers/power/regulator/Kconfig | 13 ++\n> drivers/power/regulator/Makefile | 1 +\n> drivers/power/regulator/pbias_regulator.c | 301 ++++++++++++++++++++++++++++++\n> include/dm/read.h | 36 ++++\n> 6 files changed, 363 insertions(+)\n> create mode 100644 drivers/power/regulator/pbias_regulator.c\n>","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.denx.de\n\t(client-ip=81.169.180.215; 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