diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-exynos4/include/mach/regs-clock.h | 4 | ||||
| -rw-r--r-- | arch/arm/mach-exynos4/include/mach/regs-pmu.h | 5 | ||||
| -rw-r--r-- | arch/arm/mach-s5pv210/include/mach/regs-clock.h | 5 | ||||
| -rw-r--r-- | arch/arm/plat-s5p/Kconfig | 5 | ||||
| -rw-r--r-- | arch/arm/plat-s5p/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/plat-s5p/setup-mipiphy.c | 63 |
6 files changed, 81 insertions, 2 deletions
diff --git a/arch/arm/mach-exynos4/include/mach/regs-clock.h b/arch/arm/mach-exynos4/include/mach/regs-clock.h index ba8f91c04e19..38dee94fc7ae 100644 --- a/arch/arm/mach-exynos4/include/mach/regs-clock.h +++ b/arch/arm/mach-exynos4/include/mach/regs-clock.h @@ -160,7 +160,9 @@ #define S5P_CLKDIV_BUS_GPLR_SHIFT (4) #define S5P_CLKDIV_BUS_GPLR_MASK (0x7 << S5P_CLKDIV_BUS_GPLR_SHIFT) -/* Compatibility defines */ +/* Compatibility defines and inclusion */ + +#include <mach/regs-pmu.h> #define S5P_EPLL_CON S5P_EPLL_CON0 diff --git a/arch/arm/mach-exynos4/include/mach/regs-pmu.h b/arch/arm/mach-exynos4/include/mach/regs-pmu.h index 2ddd6175dfa0..985416d1085f 100644 --- a/arch/arm/mach-exynos4/include/mach/regs-pmu.h +++ b/arch/arm/mach-exynos4/include/mach/regs-pmu.h @@ -17,6 +17,11 @@ #define S5P_PMUREG(x) (S5P_VA_PMU + (x)) +#define S5P_MIPI_DPHY_CONTROL(n) S5P_PMUREG(0x0710 + (n) * 4) +#define S5P_MIPI_DPHY_ENABLE (1 << 0) +#define S5P_MIPI_DPHY_SRESETN (1 << 1) +#define S5P_MIPI_DPHY_MRESETN (1 << 2) + #define S5P_PMU_CAM_CONF S5P_PMUREG(0x3C00) #define S5P_PMU_TV_CONF S5P_PMUREG(0x3C20) #define S5P_PMU_MFC_CONF S5P_PMUREG(0x3C40) diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h index 4c45b74def5f..78925c516346 100644 --- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h +++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h @@ -146,6 +146,10 @@ #define S5P_OM_STAT S5P_CLKREG(0xE100) #define S5P_USB_PHY_CONTROL S5P_CLKREG(0xE80C) #define S5P_DAC_CONTROL S5P_CLKREG(0xE810) +#define S5P_MIPI_DPHY_CONTROL(x) S5P_CLKREG(0xE814) +#define S5P_MIPI_DPHY_ENABLE (1 << 0) +#define S5P_MIPI_DPHY_SRESETN (1 << 1) +#define S5P_MIPI_DPHY_MRESETN (1 << 2) #define S5P_INFORM0 S5P_CLKREG(0xF000) #define S5P_INFORM1 S5P_CLKREG(0xF004) @@ -161,7 +165,6 @@ #define S5P_MDNIE_SEL S5P_CLKREG(0x7008) #define S5P_MIPI_PHY_CON0 S5P_CLKREG(0x7200) #define S5P_MIPI_PHY_CON1 S5P_CLKREG(0x7204) -#define S5P_MIPI_DPHY_CONTROL S5P_CLKREG(0xE814) #define S5P_IDLE_CFG_TL_MASK (3 << 30) #define S5P_IDLE_CFG_TM_MASK (3 << 28) diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig index 6390ac728b35..463d3aac83e4 100644 --- a/arch/arm/plat-s5p/Kconfig +++ b/arch/arm/plat-s5p/Kconfig @@ -74,3 +74,8 @@ config S5P_DEV_CSIS1 bool help Compile in platform device definitions for MIPI-CSIS channel 1 + +config S5P_SETUP_MIPIPHY + bool + help + Compile in common setup code for MIPI-CSIS and MIPI-DSIM devices diff --git a/arch/arm/plat-s5p/Makefile b/arch/arm/plat-s5p/Makefile index 4bd5cf908977..79ee7bb08cef 100644 --- a/arch/arm/plat-s5p/Makefile +++ b/arch/arm/plat-s5p/Makefile @@ -31,3 +31,4 @@ obj-$(CONFIG_S5P_DEV_FIMC2) += dev-fimc2.o obj-$(CONFIG_S5P_DEV_ONENAND) += dev-onenand.o obj-$(CONFIG_S5P_DEV_CSIS0) += dev-csis0.o obj-$(CONFIG_S5P_DEV_CSIS1) += dev-csis1.o +obj-$(CONFIG_S5P_SETUP_MIPIPHY) += setup-mipiphy.o diff --git a/arch/arm/plat-s5p/setup-mipiphy.c b/arch/arm/plat-s5p/setup-mipiphy.c new file mode 100644 index 000000000000..683c466c0e6a --- /dev/null +++ b/arch/arm/plat-s5p/setup-mipiphy.c @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2011 Samsung Electronics Co., Ltd. + * + * S5P - Helper functions for MIPI-CSIS and MIPI-DSIM D-PHY control + * + * 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. + */ + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/spinlock.h> +#include <mach/regs-clock.h> + +static int __s5p_mipi_phy_control(struct platform_device *pdev, + bool on, u32 reset) +{ + static DEFINE_SPINLOCK(lock); + void __iomem *addr; + unsigned long flags; + int pid; + u32 cfg; + + if (!pdev) + return -EINVAL; + + pid = (pdev->id == -1) ? 0 : pdev->id; + + if (pid != 0 && pid != 1) + return -EINVAL; + + addr = S5P_MIPI_DPHY_CONTROL(pid); + + spin_lock_irqsave(&lock, flags); + + cfg = __raw_readl(addr); + cfg = on ? (cfg | reset) : (cfg & ~reset); + __raw_writel(cfg, addr); + + if (on) { + cfg |= S5P_MIPI_DPHY_ENABLE; + } else if (!(cfg & (S5P_MIPI_DPHY_SRESETN | + S5P_MIPI_DPHY_MRESETN) & ~reset)) { + cfg &= ~S5P_MIPI_DPHY_ENABLE; + } + + __raw_writel(cfg, addr); + spin_unlock_irqrestore(&lock, flags); + + return 0; +} + +int s5p_csis_phy_enable(struct platform_device *pdev, bool on) +{ + return __s5p_mipi_phy_control(pdev, on, S5P_MIPI_DPHY_SRESETN); +} + +int s5p_dsim_phy_enable(struct platform_device *pdev, bool on) +{ + return __s5p_mipi_phy_control(pdev, on, S5P_MIPI_DPHY_MRESETN); +} |