diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-pcidrv.c | 1 | ||||
| -rw-r--r-- | drivers/regulator/anatop-regulator.c | 6 | ||||
| -rw-r--r-- | drivers/sh/clk/cpg.c | 77 | ||||
| -rw-r--r-- | drivers/staging/android/lowmemorykiller.c | 48 | ||||
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 30 |
5 files changed, 84 insertions, 78 deletions
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 37f42113af31..00e8f213f56e 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -182,7 +182,6 @@ static int i2c_dw_pci_resume(struct device *dev) pci_restore_state(pdev); i2c_dw_init(i2c); - i2c_dw_enable(i2c); return 0; } diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c index 53969af17558..81fd606e47bc 100644 --- a/drivers/regulator/anatop-regulator.c +++ b/drivers/regulator/anatop-regulator.c @@ -214,7 +214,7 @@ static struct of_device_id __devinitdata of_anatop_regulator_match_tbl[] = { { /* end */ } }; -static struct platform_driver anatop_regulator = { +static struct platform_driver anatop_regulator_driver = { .driver = { .name = "anatop_regulator", .owner = THIS_MODULE, @@ -226,13 +226,13 @@ static struct platform_driver anatop_regulator = { static int __init anatop_regulator_init(void) { - return platform_driver_register(&anatop_regulator); + return platform_driver_register(&anatop_regulator_driver); } postcore_initcall(anatop_regulator_init); static void __exit anatop_regulator_exit(void) { - platform_driver_unregister(&anatop_regulator); + platform_driver_unregister(&anatop_regulator_driver); } module_exit(anatop_regulator_exit); diff --git a/drivers/sh/clk/cpg.c b/drivers/sh/clk/cpg.c index 91b6d52f74eb..f0d015dd0fef 100644 --- a/drivers/sh/clk/cpg.c +++ b/drivers/sh/clk/cpg.c @@ -2,6 +2,7 @@ * Helper routines for SuperH Clock Pulse Generator blocks (CPG). * * Copyright (C) 2010 Magnus Damm + * Copyright (C) 2010 - 2012 Paul Mundt * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -13,26 +14,44 @@ #include <linux/io.h> #include <linux/sh_clk.h> -static int sh_clk_mstp32_enable(struct clk *clk) +static unsigned int sh_clk_read(struct clk *clk) { - iowrite32(ioread32(clk->mapped_reg) & ~(1 << clk->enable_bit), - clk->mapped_reg); + if (clk->flags & CLK_ENABLE_REG_8BIT) + return ioread8(clk->mapped_reg); + else if (clk->flags & CLK_ENABLE_REG_16BIT) + return ioread16(clk->mapped_reg); + + return ioread32(clk->mapped_reg); +} + +static void sh_clk_write(int value, struct clk *clk) +{ + if (clk->flags & CLK_ENABLE_REG_8BIT) + iowrite8(value, clk->mapped_reg); + else if (clk->flags & CLK_ENABLE_REG_16BIT) + iowrite16(value, clk->mapped_reg); + else + iowrite32(value, clk->mapped_reg); +} + +static int sh_clk_mstp_enable(struct clk *clk) +{ + sh_clk_write(sh_clk_read(clk) & ~(1 << clk->enable_bit), clk); return 0; } -static void sh_clk_mstp32_disable(struct clk *clk) +static void sh_clk_mstp_disable(struct clk *clk) { - iowrite32(ioread32(clk->mapped_reg) | (1 << clk->enable_bit), - clk->mapped_reg); + sh_clk_write(sh_clk_read(clk) | (1 << clk->enable_bit), clk); } -static struct sh_clk_ops sh_clk_mstp32_clk_ops = { - .enable = sh_clk_mstp32_enable, - .disable = sh_clk_mstp32_disable, +static struct sh_clk_ops sh_clk_mstp_clk_ops = { + .enable = sh_clk_mstp_enable, + .disable = sh_clk_mstp_disable, .recalc = followparent_recalc, }; -int __init sh_clk_mstp32_register(struct clk *clks, int nr) +int __init sh_clk_mstp_register(struct clk *clks, int nr) { struct clk *clkp; int ret = 0; @@ -40,7 +59,7 @@ int __init sh_clk_mstp32_register(struct clk *clks, int nr) for (k = 0; !ret && (k < nr); k++) { clkp = clks + k; - clkp->ops = &sh_clk_mstp32_clk_ops; + clkp->ops = &sh_clk_mstp_clk_ops; ret |= clk_register(clkp); } @@ -72,7 +91,7 @@ static unsigned long sh_clk_div6_recalc(struct clk *clk) clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, table, NULL); - idx = ioread32(clk->mapped_reg) & 0x003f; + idx = sh_clk_read(clk) & 0x003f; return clk->freq_table[idx].frequency; } @@ -98,10 +117,10 @@ static int sh_clk_div6_set_parent(struct clk *clk, struct clk *parent) if (ret < 0) return ret; - value = ioread32(clk->mapped_reg) & + value = sh_clk_read(clk) & ~(((1 << clk->src_width) - 1) << clk->src_shift); - iowrite32(value | (i << clk->src_shift), clk->mapped_reg); + sh_clk_write(value | (i << clk->src_shift), clk); /* Rebuild the frequency table */ clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, @@ -119,10 +138,10 @@ static int sh_clk_div6_set_rate(struct clk *clk, unsigned long rate) if (idx < 0) return idx; - value = ioread32(clk->mapped_reg); + value = sh_clk_read(clk); value &= ~0x3f; value |= idx; - iowrite32(value, clk->mapped_reg); + sh_clk_write(value, clk); return 0; } @@ -133,9 +152,9 @@ static int sh_clk_div6_enable(struct clk *clk) ret = sh_clk_div6_set_rate(clk, clk->rate); if (ret == 0) { - value = ioread32(clk->mapped_reg); + value = sh_clk_read(clk); value &= ~0x100; /* clear stop bit to enable clock */ - iowrite32(value, clk->mapped_reg); + sh_clk_write(value, clk); } return ret; } @@ -144,10 +163,10 @@ static void sh_clk_div6_disable(struct clk *clk) { unsigned long value; - value = ioread32(clk->mapped_reg); + value = sh_clk_read(clk); value |= 0x100; /* stop clock */ value |= 0x3f; /* VDIV bits must be non-zero, overwrite divider */ - iowrite32(value, clk->mapped_reg); + sh_clk_write(value, clk); } static struct sh_clk_ops sh_clk_div6_clk_ops = { @@ -182,7 +201,7 @@ static int __init sh_clk_init_parent(struct clk *clk) return -EINVAL; } - val = (ioread32(clk->mapped_reg) >> clk->src_shift); + val = (sh_clk_read(clk) >> clk->src_shift); val &= (1 << clk->src_width) - 1; if (val >= clk->parent_num) { @@ -252,7 +271,7 @@ static unsigned long sh_clk_div4_recalc(struct clk *clk) clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, table, &clk->arch_flags); - idx = (ioread32(clk->mapped_reg) >> clk->enable_bit) & 0x000f; + idx = (sh_clk_read(clk) >> clk->enable_bit) & 0x000f; return clk->freq_table[idx].frequency; } @@ -270,15 +289,15 @@ static int sh_clk_div4_set_parent(struct clk *clk, struct clk *parent) */ if (parent->flags & CLK_ENABLE_ON_INIT) - value = ioread32(clk->mapped_reg) & ~(1 << 7); + value = sh_clk_read(clk) & ~(1 << 7); else - value = ioread32(clk->mapped_reg) | (1 << 7); + value = sh_clk_read(clk) | (1 << 7); ret = clk_reparent(clk, parent); if (ret < 0) return ret; - iowrite32(value, clk->mapped_reg); + sh_clk_write(value, clk); /* Rebiuld the frequency table */ clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, @@ -295,10 +314,10 @@ static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate) if (idx < 0) return idx; - value = ioread32(clk->mapped_reg); + value = sh_clk_read(clk); value &= ~(0xf << clk->enable_bit); value |= (idx << clk->enable_bit); - iowrite32(value, clk->mapped_reg); + sh_clk_write(value, clk); if (d4t->kick) d4t->kick(clk); @@ -308,13 +327,13 @@ static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate) static int sh_clk_div4_enable(struct clk *clk) { - iowrite32(ioread32(clk->mapped_reg) & ~(1 << 8), clk->mapped_reg); + sh_clk_write(sh_clk_read(clk) & ~(1 << 8), clk); return 0; } static void sh_clk_div4_disable(struct clk *clk) { - iowrite32(ioread32(clk->mapped_reg) | (1 << 8), clk->mapped_reg); + sh_clk_write(sh_clk_read(clk) | (1 << 8), clk); } static struct sh_clk_ops sh_clk_div4_clk_ops = { diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c index 052b43e4e505..b91e4bc332a7 100644 --- a/drivers/staging/android/lowmemorykiller.c +++ b/drivers/staging/android/lowmemorykiller.c @@ -55,7 +55,6 @@ static int lowmem_minfree[6] = { }; static int lowmem_minfree_size = 4; -static struct task_struct *lowmem_deathpending; static unsigned long lowmem_deathpending_timeout; #define lowmem_print(level, x...) \ @@ -64,24 +63,6 @@ static unsigned long lowmem_deathpending_timeout; printk(x); \ } while (0) -static int -task_notify_func(struct notifier_block *self, unsigned long val, void *data); - -static struct notifier_block task_nb = { - .notifier_call = task_notify_func, -}; - -static int -task_notify_func(struct notifier_block *self, unsigned long val, void *data) -{ - struct task_struct *task = data; - - if (task == lowmem_deathpending) - lowmem_deathpending = NULL; - - return NOTIFY_OK; -} - static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc) { struct task_struct *tsk; @@ -97,19 +78,6 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc) int other_file = global_page_state(NR_FILE_PAGES) - global_page_state(NR_SHMEM); - /* - * If we already have a death outstanding, then - * bail out right away; indicating to vmscan - * that we have nothing further to offer on - * this pass. - * - * Note: Currently you need CONFIG_PROFILING - * for this to work correctly. - */ - if (lowmem_deathpending && - time_before_eq(jiffies, lowmem_deathpending_timeout)) - return 0; - if (lowmem_adj_size < array_size) array_size = lowmem_adj_size; if (lowmem_minfree_size < array_size) @@ -148,6 +116,12 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc) if (!p) continue; + if (test_tsk_thread_flag(p, TIF_MEMDIE) && + time_before_eq(jiffies, lowmem_deathpending_timeout)) { + task_unlock(p); + rcu_read_unlock(); + return 0; + } oom_score_adj = p->signal->oom_score_adj; if (oom_score_adj < min_score_adj) { task_unlock(p); @@ -174,15 +148,9 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc) lowmem_print(1, "send sigkill to %d (%s), adj %d, size %d\n", selected->pid, selected->comm, selected_oom_score_adj, selected_tasksize); - /* - * If CONFIG_PROFILING is off, then we don't want to stall - * the killer by setting lowmem_deathpending. - */ -#ifdef CONFIG_PROFILING - lowmem_deathpending = selected; lowmem_deathpending_timeout = jiffies + HZ; -#endif send_sig(SIGKILL, selected, 0); + set_tsk_thread_flag(selected, TIF_MEMDIE); rem -= selected_tasksize; } lowmem_print(4, "lowmem_shrink %lu, %x, return %d\n", @@ -198,7 +166,6 @@ static struct shrinker lowmem_shrinker = { static int __init lowmem_init(void) { - task_handoff_register(&task_nb); register_shrinker(&lowmem_shrinker); return 0; } @@ -206,7 +173,6 @@ static int __init lowmem_init(void) static void __exit lowmem_exit(void) { unregister_shrinker(&lowmem_shrinker); - task_handoff_unregister(&task_nb); } module_param_named(cost, lowmem_shrinker.seeks, int, S_IRUGO | S_IWUSR); diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 3158e17b665c..be31d85a50e3 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -1564,10 +1564,32 @@ static void sci_enable_ms(struct uart_port *port) static void sci_break_ctl(struct uart_port *port, int break_state) { - /* - * Not supported by hardware. Most parts couple break and rx - * interrupts together, with break detection always enabled. - */ + struct sci_port *s = to_sci_port(port); + struct plat_sci_reg *reg = sci_regmap[s->cfg->regtype] + SCSPTR; + unsigned short scscr, scsptr; + + /* check wheter the port has SCSPTR */ + if (!reg->size) { + /* + * Not supported by hardware. Most parts couple break and rx + * interrupts together, with break detection always enabled. + */ + return; + } + + scsptr = serial_port_in(port, SCSPTR); + scscr = serial_port_in(port, SCSCR); + + if (break_state == -1) { + scsptr = (scsptr | SCSPTR_SPB2IO) & ~SCSPTR_SPB2DT; + scscr &= ~SCSCR_TE; + } else { + scsptr = (scsptr | SCSPTR_SPB2DT) & ~SCSPTR_SPB2IO; + scscr |= SCSCR_TE; + } + + serial_port_out(port, SCSPTR, scsptr); + serial_port_out(port, SCSCR, scscr); } #ifdef CONFIG_SERIAL_SH_SCI_DMA |