/* * tegra20_das.h - Definitions for Tegra20 DAS driver * * Author: Stephen Warren * Copyright (C) 2010,2012 - NVIDIA, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #ifndef __TEGRA20_DAS_H__ #define __TEGRA20_DAS_H__ /* Register TEGRA20_DAS_DAP_CTRL_SEL */ #define TEGRA20_DAS_DAP_CTRL_SEL 0x00 #define TEGRA20_DAS_DAP_CTRL_SEL_COUNT 5 #define TEGRA20_DAS_DAP_CTRL_SEL_STRIDE 4 #define TEGRA20_DAS_DAP_CTRL_SEL_DAP_MS_SEL_P 31 #define TEGRA20_DAS_DAP_CTRL_SEL_DAP_MS_SEL_S 1 #define TEGRA20_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_P 30 #define TEGRA20_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_S 1 #define TEGRA20_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_P 29 #define TEGRA20_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_S 1 #define TEGRA20_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_P 0 #define TEGRA20_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_S 5 /* Values for field TEGRA20_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL */ #define TEGRA20_DAS_DAP_SEL_DAC1 0 #define TEGRA20_DAS_DAP_SEL_DAC2 1 #define TEGRA20_DAS_DAP_SEL_DAC3 2 #define TEGRA20_DAS_DAP_SEL_DAP1 16 #define TEGRA20_DAS_DAP_SEL_DAP2 17 #define TEGRA20_DAS_DAP_SEL_DAP3 18 #define TEGRA20_DAS_DAP_SEL_DAP4 19 #define TEGRA20_DAS_DAP_SEL_DAP5 20 /* Register TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL */ #define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL 0x40 #define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_COUNT 3 #define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_STRIDE 4 #define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_P 28 #define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_S 4 #define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_P 24 #define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_S 4 #define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_P 0 #define TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_S 4 /* * Values for: * TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL * TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL * TEGRA20_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL */ #define TEGRA20_DAS_DAC_SEL_DAP1 0 #define TEGRA20_DAS_DAC_SEL_DAP2 1 #define TEGRA20_DAS_DAC_SEL_DAP3 2 #define TEGRA20_DAS_DAC_SEL_DAP4 3 #define TEGRA20_DAS_DAC_SEL_DAP5 4 /* * Names/IDs of the DACs/DAPs. */ #define TEGRA20_DAS_DAP_ID_1 0 #define TEGRA20_DAS_DAP_ID_2 1 #define TEGRA20_DAS_DAP_ID_3 2 #define TEGRA20_DAS_DAP_ID_4 3 #define TEGRA20_DAS_DAP_ID_5 4 #define TEGRA20_DAS_DAC_ID_1 0 #define TEGRA20_DAS_DAC_ID_2 1 #define TEGRA20_DAS_DAC_ID_3 2 struct tegra20_das { struct device *dev; struct regmap *regmap; }; /* * Terminology: * DAS: Digital audio switch (HW module controlled by this driver) * DAP: Digital audio port (port/pins on Tegra device) * DAC: Digital audio controller (e.g. I2S or AC97 controller elsewhere) * * The Tegra DAS is a mux/cross-bar which can connect each DAP to a specific * DAC, or another DAP. When DAPs are connected, one must be the master and * one the slave. Each DAC allows selection of a specific DAP for input, to * cater for the case where N DAPs are connected to 1 DAC for broadcast * output. * * This driver is dumb; no attempt is made to ensure that a valid routing * configuration is programmed. */ /* * Connect a DAP to to a DAC * dap_id: DAP to connect: TEGRA20_DAS_DAP_ID_* * dac_sel: DAC to connect to: TEGRA20_DAS_DAP_SEL_DAC* */ extern int tegra20_das_connect_dap_to_dac(int dap_id, int dac_sel); /* * Connect a DAP to to another DAP * dap_id: DAP to connect: TEGRA20_DAS_DAP_ID_* * other_dap_sel: DAP to connect to: TEGRA20_DAS_DAP_SEL_DAP* * master: Is this DAP the master (1) or slave (0) * sdata1rx: Is this DAP's SDATA1 pin RX (1) or TX (0) * sdata2rx: Is this DAP's SDATA2 pin RX (1) or TX (0) */ extern int tegra20_das_connect_dap_to_dap(int dap_id, int other_dap_sel, int master, int sdata1rx, int sdata2rx); /* * Connect a DAC's input to a DAP * (DAC outputs are selected by the DAP) * dac_id: DAC ID to connect: TEGRA20_DAS_DAC_ID_* * dap_sel: DAP to receive input from: TEGRA20_DAS_DAC_SEL_DAP* */ extern int tegra20_das_connect_dac_to_dap(int dac_id, int dap_sel); #endif ='/cgit.cgi/linux/net-next.git/commit/fs/9p?id=4759d386d55fef452d692bf101167914437e848e'>4759d386d55fef452d692bf101167914437e848e (patch) treee7109c192ec589fcea2a98f9702aa3c0e4009581 /fs/9p parent238d1d0f79f619d75c2cc741d6770fb0986aef24 (diff)parent1db175428ee374489448361213e9c3b749d14900 (diff)
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull DAX updates from Dan Williams: "The completion of Jan's DAX work for 4.10. As I mentioned in the libnvdimm-for-4.10 pull request, these are some final fixes for the DAX dirty-cacheline-tracking invalidation work that was merged through the -mm, ext4, and xfs trees in -rc1. These patches were prepared prior to the merge window, but we waited for 4.10-rc1 to have a stable merge base after all the prerequisites were merged. Quoting Jan on the overall changes in these patches: "So I'd like all these 6 patches to go for rc2. The first three patches fix invalidation of exceptional DAX entries (a bug which is there for a long time) - without these patches data loss can occur on power failure even though user called fsync(2). The other three patches change locking of DAX faults so that ->iomap_begin() is called in a more relaxed locking context and we are safe to start a transaction there for ext4" These have received a build success notification from the kbuild robot, and pass the latest libnvdimm unit tests. There have not been any -next releases since -rc1, so they have not appeared there" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: ext4: Simplify DAX fault path dax: Call ->iomap_begin without entry lock during dax fault dax: Finish fault completely when loading holes dax: Avoid page invalidation races and unnecessary radix tree traversals mm: Invalidate DAX radix tree entries only if appropriate ext2: Return BH_New buffers for zeroed blocks
Diffstat (limited to 'fs/9p')