/* * i2sbus driver -- bus control routines * * Copyright 2006 Johannes Berg * * GPL v2, can be found in COPYING. */ #include #include #include #include #include #include #include #include #include #include "i2sbus.h" int i2sbus_control_init(struct macio_dev* dev, struct i2sbus_control **c) { *c = kzalloc(sizeof(struct i2sbus_control), GFP_KERNEL); if (!*c) return -ENOMEM; INIT_LIST_HEAD(&(*c)->list); (*c)->macio = dev->bus->chip; return 0; } void i2sbus_control_destroy(struct i2sbus_control *c) { kfree(c); } /* this is serialised externally */ int i2sbus_control_add_dev(struct i2sbus_control *c, struct i2sbus_dev *i2sdev) { struct device_node *np; np = i2sdev->sound.ofdev.dev.of_node; i2sdev->enable = pmf_find_function(np, "enable"); i2sdev->cell_enable = pmf_find_function(np, "cell-enable"); i2sdev->clock_enable = pmf_find_function(np, "clock-enable"); i2sdev->cell_disable = pmf_find_function(np, "cell-disable"); i2sdev->clock_disable = pmf_find_function(np, "clock-disable"); /* if the bus number is not 0 or 1 we absolutely need to use * the platform functions -- there's nothing in Darwin that * would allow seeing a system behind what the FCRs are then, * and I don't want to go parsing a bunch of platform functions * by hand to try finding a system... */ if (i2sdev->bus_number != 0 && i2sdev->bus_number != 1 && (!i2sdev->enable || !i2sdev->cell_enable || !i2sdev->clock_enable || !i2sdev->cell_disable || !i2sdev->clock_disable)) { pmf_put_function(i2sdev->enable); pmf_put_function(i2sdev->cell_enable); pmf_put_function(i2sdev->clock_enable); pmf_put_function(i2sdev->cell_disable); pmf_put_function(i2sdev->clock_disable); return -ENODEV; } list_add(&i2sdev->item, &c->list); return 0; } void i2sbus_control_remove_dev(struct i2sbus_control *c, struct i2sbus_dev *i2sdev) { /* this is serialised externally */ list_del(&i2sdev->item); if (list_empty(&c->list)) i2sbus_control_destroy(c); } int i2sbus_control_enable(struct i2sbus_control *c, struct i2sbus_dev *i2sdev) { struct pmf_args args = { .count = 0 }; struct macio_chip *macio = c->macio; if (i2sdev->enable) return pmf_call_one(i2sdev->enable, &args); if (macio == NULL || macio->base == NULL) return -ENODEV; switch (i2sdev->bus_number) { case 0: /* these need to be locked or done through * newly created feature calls! */ MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_ENABLE); break; case 1: MACIO_BIS(KEYLARGO_FCR1, KL1_I2S1_ENABLE); break; default: return -ENODEV; } return 0; } int i2sbus_control_cell(struct i2sbus_control *c, struct i2sbus_dev *i2sdev, int enable) { struct pmf_args args = { .count = 0 }; struct macio_chip *macio = c->macio; switch (enable) { case 0: if (i2sdev->cell_disable) return pmf_call_one(i2sdev->cell_disable, &args); break; case 1: if (i2sdev->cell_enable) return pmf_call_one(i2sdev->cell_enable, &args); break; default: printk(KERN_ERR "i2sbus: INVALID CELL ENABLE VALUE\n"); return -ENODEV; } if (macio == NULL || macio->base == NULL) return -ENODEV; switch (i2sdev->bus_number) { case 0: if (enable) MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_CELL_ENABLE); else MACIO_BIC(KEYLARGO_FCR1, KL1_I2S0_CELL_ENABLE); break; case 1: if (enable) MACIO_BIS(KEYLARGO_FCR1, KL1_I2S1_CELL_ENABLE); else MACIO_BIC(KEYLARGO_FCR1, KL1_I2S1_CELL_ENABLE); break; default: return -ENODEV; } return 0; } int i2sbus_control_clock(struct i2sbus_control *c, struct i2sbus_dev *i2sdev, int enable) { struct pmf_args args = { .count = 0 }; struct macio_chip *macio = c->macio; switch (enable) { case 0: if (i2sdev->clock_disable) return pmf_call_one(i2sdev->clock_disable, &args); break; case 1: if (i2sdev->clock_enable) return pmf_call_one(i2sdev->clock_enable, &args); break; default: printk(KERN_ERR "i2sbus: INVALID CLOCK ENABLE VALUE\n"); return -ENODEV; } if (macio == NULL || macio->base == NULL) return -ENODEV; switch (i2sdev->bus_number) { case 0: if (enable) MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_CLK_ENABLE_BIT); else MACIO_BIC(KEYLARGO_FCR1, KL1_I2S0_CLK_ENABLE_BIT); break; case 1: if (enable) MACIO_BIS(KEYLARGO_FCR1, KL1_I2S1_CLK_ENABLE_BIT); else MACIO_BIC(KEYLARGO_FCR1, KL1_I2S1_CLK_ENABLE_BIT); break; default: return -ENODEV; } return 0; } e='30'>30space:mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-30 15:47:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-30 15:47:19 -0800
commitf9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b (patch)
tree4078d3ae27d4ebb85bdcd4d84e9b9a4d059f22bb /tools/testing/selftests/powerpc/pmu/ebb/Makefile
parent751321b3dd5040dc5be19bd23f985e80c914621a (diff)
parent54791b276b4000b307339f269d3bf7db877d536f (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller: "Several small bug fixes and tidies, along with a fix for non-resumable memory errors triggered by userspace" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Handle PIO & MEM non-resumable errors. sparc64: Zero pages on allocation for mondo and error queues. sparc: Fixed typo in sstate.c. Replaced panicing with panicking sparc: use symbolic names for tsb indexing
Diffstat (limited to 'tools/testing/selftests/powerpc/pmu/ebb/Makefile')