From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/drivers/tty/serial/mpsc.c | 66 ++++++++++++++-------------------------- 1 file changed, 22 insertions(+), 44 deletions(-) (limited to 'kernel/drivers/tty/serial/mpsc.c') diff --git a/kernel/drivers/tty/serial/mpsc.c b/kernel/drivers/tty/serial/mpsc.c index 856fd5a5f..cadfd1cfa 100644 --- a/kernel/drivers/tty/serial/mpsc.c +++ b/kernel/drivers/tty/serial/mpsc.c @@ -55,8 +55,6 @@ #define SUPPORT_SYSRQ #endif -#include -#include #include #include #include @@ -755,7 +753,7 @@ static int mpsc_alloc_ring_mem(struct mpsc_port_info *pi) pi->port.line); if (!pi->dma_region) { - if (!dma_supported(pi->port.dev, 0xffffffff)) { + if (!dma_set_mask(pi->port.dev, 0xffffffff)) { printk(KERN_ERR "MPSC: Inadequate DMA support\n"); rc = -ENXIO; } else if ((pi->dma_region = dma_alloc_noncoherent(pi->port.dev, @@ -913,7 +911,8 @@ static int mpsc_make_ready(struct mpsc_port_info *pi) if (!pi->ready) { mpsc_init_hw(pi); - if ((rc = mpsc_alloc_ring_mem(pi))) + rc = mpsc_alloc_ring_mem(pi); + if (rc) return rc; mpsc_init_rings(pi); pi->ready = 1; @@ -1895,7 +1894,8 @@ static int mpsc_shared_drv_probe(struct platform_device *dev) int rc = -ENODEV; if (dev->id == 0) { - if (!(rc = mpsc_shared_map_regs(dev))) { + rc = mpsc_shared_map_regs(dev); + if (!rc) { pdata = (struct mpsc_shared_pdata *) dev_get_platdata(&dev->dev); @@ -2081,14 +2081,16 @@ static int mpsc_drv_probe(struct platform_device *dev) if (dev->id < MPSC_NUM_CTLRS) { pi = &mpsc_ports[dev->id]; - if (!(rc = mpsc_drv_map_regs(pi, dev))) { + rc = mpsc_drv_map_regs(pi, dev); + if (!rc) { mpsc_drv_get_platform_data(pi, dev, dev->id); pi->port.dev = &dev->dev; - if (!(rc = mpsc_make_ready(pi))) { + rc = mpsc_make_ready(pi); + if (!rc) { spin_lock_init(&pi->tx_lock); - if (!(rc = uart_add_one_port(&mpsc_reg, - &pi->port))) { + rc = uart_add_one_port(&mpsc_reg, &pi->port); + if (!rc) { rc = 0; } else { mpsc_release_port((struct uart_port *) @@ -2104,26 +2106,11 @@ static int mpsc_drv_probe(struct platform_device *dev) return rc; } -static int mpsc_drv_remove(struct platform_device *dev) -{ - pr_debug("mpsc_drv_exit: Removing MPSC %d\n", dev->id); - - if (dev->id < MPSC_NUM_CTLRS) { - uart_remove_one_port(&mpsc_reg, &mpsc_ports[dev->id].port); - mpsc_release_port((struct uart_port *) - &mpsc_ports[dev->id].port); - mpsc_drv_unmap_regs(&mpsc_ports[dev->id]); - return 0; - } else { - return -ENODEV; - } -} - static struct platform_driver mpsc_driver = { .probe = mpsc_drv_probe, - .remove = mpsc_drv_remove, .driver = { - .name = MPSC_CTLR_NAME, + .name = MPSC_CTLR_NAME, + .suppress_bind_attrs = true, }, }; @@ -2136,9 +2123,12 @@ static int __init mpsc_drv_init(void) memset(mpsc_ports, 0, sizeof(mpsc_ports)); memset(&mpsc_shared_regs, 0, sizeof(mpsc_shared_regs)); - if (!(rc = uart_register_driver(&mpsc_reg))) { - if (!(rc = platform_driver_register(&mpsc_shared_driver))) { - if ((rc = platform_driver_register(&mpsc_driver))) { + rc = uart_register_driver(&mpsc_reg); + if (!rc) { + rc = platform_driver_register(&mpsc_shared_driver); + if (!rc) { + rc = platform_driver_register(&mpsc_driver); + if (rc) { platform_driver_unregister(&mpsc_shared_driver); uart_unregister_driver(&mpsc_reg); } @@ -2149,22 +2139,10 @@ static int __init mpsc_drv_init(void) return rc; } +device_initcall(mpsc_drv_init); -static void __exit mpsc_drv_exit(void) -{ - platform_driver_unregister(&mpsc_driver); - platform_driver_unregister(&mpsc_shared_driver); - uart_unregister_driver(&mpsc_reg); - memset(mpsc_ports, 0, sizeof(mpsc_ports)); - memset(&mpsc_shared_regs, 0, sizeof(mpsc_shared_regs)); -} - -module_init(mpsc_drv_init); -module_exit(mpsc_drv_exit); - +/* MODULE_AUTHOR("Mark A. Greer "); MODULE_DESCRIPTION("Generic Marvell MPSC serial/UART driver"); -MODULE_VERSION(MPSC_VERSION); MODULE_LICENSE("GPL"); -MODULE_ALIAS_CHARDEV_MAJOR(MPSC_MAJOR); -MODULE_ALIAS("platform:" MPSC_CTLR_NAME); +*/ -- cgit 1.2.3-korg