diff options
Diffstat (limited to 'drivers/media/pci/cobalt/cobalt-driver.h')
| -rw-r--r-- | drivers/media/pci/cobalt/cobalt-driver.h | 84 |
1 files changed, 39 insertions, 45 deletions
diff --git a/drivers/media/pci/cobalt/cobalt-driver.h b/drivers/media/pci/cobalt/cobalt-driver.h index 00f773ec359a..12c33e035904 100644 --- a/drivers/media/pci/cobalt/cobalt-driver.h +++ b/drivers/media/pci/cobalt/cobalt-driver.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * cobalt driver internal defines and structures * @@ -5,24 +6,12 @@ * * Copyright 2012-2015 Cisco Systems, Inc. and/or its affiliates. * All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. */ #ifndef COBALT_DRIVER_H #define COBALT_DRIVER_H +#include <linux/bitops.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/spinlock.h> @@ -73,37 +62,37 @@ #define COBALT_CLK 50000000 /* System status register */ -#define COBALT_SYSSTAT_DIP0_MSK (1 << 0) -#define COBALT_SYSSTAT_DIP1_MSK (1 << 1) -#define COBALT_SYSSTAT_HSMA_PRSNTN_MSK (1 << 2) -#define COBALT_SYSSTAT_FLASH_RDYBSYN_MSK (1 << 3) -#define COBALT_SYSSTAT_VI0_5V_MSK (1 << 4) -#define COBALT_SYSSTAT_VI0_INT1_MSK (1 << 5) -#define COBALT_SYSSTAT_VI0_INT2_MSK (1 << 6) -#define COBALT_SYSSTAT_VI0_LOST_DATA_MSK (1 << 7) -#define COBALT_SYSSTAT_VI1_5V_MSK (1 << 8) -#define COBALT_SYSSTAT_VI1_INT1_MSK (1 << 9) -#define COBALT_SYSSTAT_VI1_INT2_MSK (1 << 10) -#define COBALT_SYSSTAT_VI1_LOST_DATA_MSK (1 << 11) -#define COBALT_SYSSTAT_VI2_5V_MSK (1 << 12) -#define COBALT_SYSSTAT_VI2_INT1_MSK (1 << 13) -#define COBALT_SYSSTAT_VI2_INT2_MSK (1 << 14) -#define COBALT_SYSSTAT_VI2_LOST_DATA_MSK (1 << 15) -#define COBALT_SYSSTAT_VI3_5V_MSK (1 << 16) -#define COBALT_SYSSTAT_VI3_INT1_MSK (1 << 17) -#define COBALT_SYSSTAT_VI3_INT2_MSK (1 << 18) -#define COBALT_SYSSTAT_VI3_LOST_DATA_MSK (1 << 19) -#define COBALT_SYSSTAT_VIHSMA_5V_MSK (1 << 20) -#define COBALT_SYSSTAT_VIHSMA_INT1_MSK (1 << 21) -#define COBALT_SYSSTAT_VIHSMA_INT2_MSK (1 << 22) -#define COBALT_SYSSTAT_VIHSMA_LOST_DATA_MSK (1 << 23) -#define COBALT_SYSSTAT_VOHSMA_INT1_MSK (1 << 24) -#define COBALT_SYSSTAT_VOHSMA_PLL_LOCKED_MSK (1 << 25) -#define COBALT_SYSSTAT_VOHSMA_LOST_DATA_MSK (1 << 26) -#define COBALT_SYSSTAT_AUD_PLL_LOCKED_MSK (1 << 28) -#define COBALT_SYSSTAT_AUD_IN_LOST_DATA_MSK (1 << 29) -#define COBALT_SYSSTAT_AUD_OUT_LOST_DATA_MSK (1 << 30) -#define COBALT_SYSSTAT_PCIE_SMBCLK_MSK (1 << 31) +#define COBALT_SYSSTAT_DIP0_MSK BIT(0) +#define COBALT_SYSSTAT_DIP1_MSK BIT(1) +#define COBALT_SYSSTAT_HSMA_PRSNTN_MSK BIT(2) +#define COBALT_SYSSTAT_FLASH_RDYBSYN_MSK BIT(3) +#define COBALT_SYSSTAT_VI0_5V_MSK BIT(4) +#define COBALT_SYSSTAT_VI0_INT1_MSK BIT(5) +#define COBALT_SYSSTAT_VI0_INT2_MSK BIT(6) +#define COBALT_SYSSTAT_VI0_LOST_DATA_MSK BIT(7) +#define COBALT_SYSSTAT_VI1_5V_MSK BIT(8) +#define COBALT_SYSSTAT_VI1_INT1_MSK BIT(9) +#define COBALT_SYSSTAT_VI1_INT2_MSK BIT(10) +#define COBALT_SYSSTAT_VI1_LOST_DATA_MSK BIT(11) +#define COBALT_SYSSTAT_VI2_5V_MSK BIT(12) +#define COBALT_SYSSTAT_VI2_INT1_MSK BIT(13) +#define COBALT_SYSSTAT_VI2_INT2_MSK BIT(14) +#define COBALT_SYSSTAT_VI2_LOST_DATA_MSK BIT(15) +#define COBALT_SYSSTAT_VI3_5V_MSK BIT(16) +#define COBALT_SYSSTAT_VI3_INT1_MSK BIT(17) +#define COBALT_SYSSTAT_VI3_INT2_MSK BIT(18) +#define COBALT_SYSSTAT_VI3_LOST_DATA_MSK BIT(19) +#define COBALT_SYSSTAT_VIHSMA_5V_MSK BIT(20) +#define COBALT_SYSSTAT_VIHSMA_INT1_MSK BIT(21) +#define COBALT_SYSSTAT_VIHSMA_INT2_MSK BIT(22) +#define COBALT_SYSSTAT_VIHSMA_LOST_DATA_MSK BIT(23) +#define COBALT_SYSSTAT_VOHSMA_INT1_MSK BIT(24) +#define COBALT_SYSSTAT_VOHSMA_PLL_LOCKED_MSK BIT(25) +#define COBALT_SYSSTAT_VOHSMA_LOST_DATA_MSK BIT(26) +#define COBALT_SYSSTAT_AUD_PLL_LOCKED_MSK BIT(28) +#define COBALT_SYSSTAT_AUD_IN_LOST_DATA_MSK BIT(29) +#define COBALT_SYSSTAT_AUD_OUT_LOST_DATA_MSK BIT(30) +#define COBALT_SYSSTAT_PCIE_SMBCLK_MSK BIT(31) /* Cobalt memory map */ #define COBALT_I2C_0_BASE 0x0 @@ -262,6 +251,8 @@ struct cobalt { int instance; struct pci_dev *pci_dev; struct v4l2_device v4l2_dev; + /* serialize PCI access in cobalt_s_bit_sysctrl() */ + struct mutex pci_lock; void __iomem *bar0, *bar1; @@ -331,10 +322,13 @@ static inline u32 cobalt_g_sysctrl(struct cobalt *cobalt) static inline void cobalt_s_bit_sysctrl(struct cobalt *cobalt, int bit, int val) { - u32 ctrl = cobalt_read_bar1(cobalt, COBALT_SYS_CTRL_BASE); + u32 ctrl; + mutex_lock(&cobalt->pci_lock); + ctrl = cobalt_read_bar1(cobalt, COBALT_SYS_CTRL_BASE); cobalt_write_bar1(cobalt, COBALT_SYS_CTRL_BASE, (ctrl & ~(1UL << bit)) | (val << bit)); + mutex_unlock(&cobalt->pci_lock); } static inline u32 cobalt_g_sysstat(struct cobalt *cobalt) |