AMD CRYPTOGRAPHIC COPROCESSOR (CCP) DRIVER
S: Supported
F: drivers/crypto/ccp/
F: include/linux/perf/arm_pmu.h
ARM PORT
-M: Russell King <linux@arm.linux.org.uk>
-W: http://www.arm.linux.org.uk/
+W: http://www.armlinux.org.uk/
S: Maintained
F: arch/arm/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git
ARM PRIMECELL AACI PL041 DRIVER
-M: Russell King <linux@arm.linux.org.uk>
S: Maintained
F: sound/arm/aaci.*
ARM PRIMECELL CLCD PL110 DRIVER
-M: Russell King <linux@arm.linux.org.uk>
S: Maintained
F: drivers/video/fbdev/amba-clcd.*
ARM PRIMECELL KMI PL050 DRIVER
-M: Russell King <linux@arm.linux.org.uk>
S: Maintained
F: drivers/input/serio/ambakmi.*
F: include/linux/amba/kmi.h
ARM PRIMECELL MMCI PL180/1 DRIVER
-M: Russell King <linux@arm.linux.org.uk>
S: Maintained
F: drivers/mmc/host/mmci.*
F: include/linux/amba/mmci.h
ARM PRIMECELL UART PL010 AND PL011 DRIVERS
-M: Russell King <linux@arm.linux.org.uk>
S: Maintained
F: drivers/tty/serial/amba-pl01*.c
F: include/linux/amba/serial.h
ARM PRIMECELL BUS SUPPORT
-M: Russell King <linux@arm.linux.org.uk>
S: Maintained
F: drivers/amba/
F: include/linux/amba/bus.h
ARM/Amlogic Meson SoC support
W: http://linux-meson.com/
S: Maintained
F: arch/arm/mach-meson/
F: arch/arm/boot/dts/meson*
+F: arch/arm64/boot/dts/amlogic/
+F: drivers/pinctrl/meson/
N: meson
ARM/Annapurna Labs ALPINE ARCHITECTURE
F: arch/arm/boot/dts/artpec6*
F: drivers/clk/clk-artpec6.c
+ARM/ASPEED MACHINE SUPPORT
+S: Maintained
+F: arch/arm/mach-aspeed/
+F: arch/arm/boot/dts/aspeed-*
+F: drivers/*/*aspeed*
+
ARM/ATMEL AT91RM9200, AT91SAM9 AND SAMA5 SOC SUPPORT
S: Maintained
ARM/CLKDEV SUPPORT
-M: Russell King <linux@arm.linux.org.uk>
S: Maintained
F: arch/arm/include/asm/clkdev.h
N: digicolor
ARM/EBSA110 MACHINE SUPPORT
-M: Russell King <linux@arm.linux.org.uk>
-W: http://www.arm.linux.org.uk/
+W: http://www.armlinux.org.uk/
S: Maintained
F: arch/arm/mach-ebsa110/
F: drivers/net/ethernet/amd/am79c961a.*
F: arch/arm/mm/*-fa*
ARM/FOOTBRIDGE ARCHITECTURE
-M: Russell King <linux@arm.linux.org.uk>
-W: http://www.arm.linux.org.uk/
+W: http://www.armlinux.org.uk/
S: Maintained
F: arch/arm/include/asm/hardware/dec21285.h
F: arch/arm/mach-footbridge/
S: Maintained
F: arch/arm/mach-keystone/
-F: arch/arm/boot/dts/k2*
+F: arch/arm/boot/dts/keystone-*
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
ARM/TEXAS INSTRUMENT KEYSTONE CLOCK FRAMEWORK
S: Maintained
F: drivers/memory/*emif*
+ARM/LG1K ARCHITECTURE
+S: Maintained
+F: arch/arm64/boot/dts/lg/
+
ARM/LOGICPD PXA270 MACHINE SUPPORT
F: drivers/rtc/rtc-lpc24xx.c
N: lpc18xx
+ARM/LPC32XX SOC SUPPORT
+T: git git://github.com/vzapolskiy/linux-lpc32xx.git
+S: Maintained
+F: arch/arm/boot/dts/lpc32*
+F: arch/arm/mach-lpc32xx/
+F: drivers/i2c/busses/i2c-pnx.c
+F: drivers/net/ethernet/nxp/lpc_eth.c
+F: drivers/usb/host/ohci-nxp.c
+F: drivers/watchdog/pnx4008_wdt.c
+N: lpc32xx
+
ARM/MAGICIAN MACHINE SUPPORT
S: Maintained
-ARM/Marvell Kirkwood and Armada 370, 375, 38x, XP SOC support
+ARM/Marvell Kirkwood and Armada 370, 375, 38x, 39x, XP, 3700, 7K/8K SOC support
F: arch/arm/boot/dts/armada*
F: arch/arm/boot/dts/kirkwood*
F: arch/arm64/boot/dts/marvell/armada*
-
+F: drivers/cpufreq/mvebu-cpufreq.c
+F: arch/arm/configs/mvebu_*_defconfig
ARM/Marvell Berlin SoC support
S: Maintained
F: arch/arm/mach-orion5x/ts78xx-*
+ARM/OXNAS platform support
+S: Maintained
+F: arch/arm/mach-oxnas/
+F: arch/arm/boot/dts/oxnas*
+F: arch/arm/boot/dts/wd-mbwe.dts
+N: oxnas
+
ARM/Mediatek RTC DRIVER
ARM/PT DIGITAL BOARD PORT
-W: http://www.arm.linux.org.uk/
+W: http://www.armlinux.org.uk/
S: Maintained
ARM/QUALCOMM SUPPORT
F: arch/arm/boot/dts/qcom-*.dtsi
F: arch/arm/mach-qcom/
F: arch/arm64/boot/dts/qcom/*
+F: drivers/i2c/busses/i2c-qup.c
+F: drivers/clk/qcom/
F: drivers/soc/qcom/
+F: drivers/spi/spi-qup.c
F: drivers/tty/serial/msm_serial.h
F: drivers/tty/serial/msm_serial.c
F: drivers/*/pm8???-*
T: git git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git next
S: Supported
F: arch/arm64/boot/dts/renesas/
+F: drivers/soc/renesas/
+F: include/linux/soc/renesas/
ARM/RISCPC ARCHITECTURE
-M: Russell King <linux@arm.linux.org.uk>
-W: http://www.arm.linux.org.uk/
+W: http://www.armlinux.org.uk/
S: Maintained
F: arch/arm/include/asm/hardware/entry-macro-iomd.S
F: arch/arm/include/asm/hardware/ioc.h
F: arch/arm/mach-exynos*/
F: drivers/*/*s3c2410*
F: drivers/*/*/*s3c2410*
+F: drivers/memory/samsung/*
F: drivers/soc/samsung/*
F: drivers/spi/spi-s3c*
F: sound/soc/samsung/*
F: arch/arm/include/debug/renesas-scif.S
F: arch/arm/mach-shmobile/
F: drivers/sh/
+F: drivers/soc/renesas/
+F: include/linux/soc/renesas/
ARM/SOCFPGA ARCHITECTURE
F: drivers/char/hw_random/st-rng.c
F: drivers/clocksource/arm_global_timer.c
F: drivers/clocksource/clksrc_st_lpc.c
+F: drivers/cpufreq/sti-cpufreq.c
F: drivers/i2c/busses/i2c-st.c
F: drivers/media/rc/st_rc.c
F: drivers/media/platform/sti/c8sectpfe/
F: drivers/phy/phy-stih407-usb.c
F: drivers/phy/phy-stih41x-usb.c
F: drivers/pinctrl/pinctrl-st.c
+F: drivers/remoteproc/st_remoteproc.c
F: drivers/reset/sti/
F: drivers/rtc/rtc-st-lpc.c
F: drivers/tty/serial/st-asc.c
F: */*/*/vexpress*
F: drivers/clk/versatile/clk-vexpress-osc.c
F: drivers/clocksource/versatile.c
+N: mps2
ARM/VFP SUPPORT
-M: Russell King <linux@arm.linux.org.uk>
-W: http://www.arm.linux.org.uk/
+W: http://www.armlinux.org.uk/
S: Maintained
F: arch/arm/vfp/
W: https://www.open-mesh.org/
Q: https://patchwork.open-mesh.org/project/batman/list/
S: Maintained
+F: Documentation/ABI/testing/sysfs-class-net-batman-adv
+F: Documentation/ABI/testing/sysfs-class-net-mesh
+F: Documentation/networking/batman-adv.txt
F: net/batman-adv/
BAYCOM/HDLCDRV DRIVERS FOR AX.25
F: include/linux/cleancache.h
CLK API
-M: Russell King <linux@arm.linux.org.uk>
S: Maintained
F: include/linux/clk.h
STMMAC ETHERNET DRIVER
W: http://www.stlinux.com
S: Supported
F: drivers/net/ethernet/stmicro/stmmac/
CYBERPRO FB DRIVER
-M: Russell King <linux@arm.linux.org.uk>
-W: http://www.arm.linux.org.uk/
+W: http://www.armlinux.org.uk/
S: Maintained
F: drivers/video/fbdev/cyber2000fb.*
F: include/linux/devfreq-event.h
F: Documentation/devicetree/bindings/devfreq/event/
+BUS FREQUENCY DRIVER FOR SAMSUNG EXYNOS
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq.git
+S: Maintained
+F: drivers/devfreq/exynos-bus.c
+F: Documentation/devicetree/bindings/devfreq/exynos-bus.txt
+
DEVICE NUMBER REGISTRY
W: http://lanana.org/docs/device-list/index.html
DRM DRIVERS FOR VIVANTE GPU IP
-R: Russell King <linux+etnaviv@arm.linux.org.uk>
S: Maintained
F: arch/ia64/kernel/efi.c
F: arch/x86/boot/compressed/eboot.[ch]
F: arch/x86/include/asm/efi.h
-F: arch/x86/platform/efi/*
-F: drivers/firmware/efi/*
+F: arch/x86/platform/efi/
+F: drivers/firmware/efi/
F: include/linux/efi*.h
EFI VARIABLE FILESYSTEM
F: drivers/video/fbdev/exynos/exynos_mipi*
F: include/video/exynos_mipi*
+EZchip NPS platform support
+S: Supported
+F: arch/arc/plat-eznps
+F: arch/arc/boot/dts/eznps.dts
+
F71805F HARDWARE MONITORING DRIVER
S: Maintained
FUSE: FILESYSTEM IN USERSPACE
W: http://fuse.sourceforge.net/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git
S: Maintained
+F: Documentation/devicetree/bindings/gpio/
F: Documentation/gpio/
F: Documentation/ABI/testing/gpio-cdev
F: Documentation/ABI/obsolete/sysfs-gpio
F: include/net/gre.h
GRETH 10/100/1G Ethernet MAC device driver
-M: Kristoffer Glembo <kristoffer@gaisler.com>
+M: Andreas Larsson <andreas@gaisler.com>
S: Maintained
F: drivers/net/ethernet/aeroflex/
S: Maintained
+ F: Documentation/i2c/i2c-topology
F: Documentation/i2c/muxes/
F: Documentation/devicetree/bindings/i2c/i2c-mux*
F: drivers/i2c/i2c-mux.c
INTEL ETHERNET DRIVERS
W: http://www.intel.com/support/feedback.htm
W: http://e1000.sourceforge.net/
ISCSI EXTENSIONS FOR RDMA (ISER) INITIATOR
+M: Sagi Grimberg <sagi@grimberg.me>
S: Supported
F: drivers/infiniband/ulp/iser/
ISCSI EXTENSIONS FOR RDMA (ISER) TARGET
+M: Sagi Grimberg <sagi@grimberg.me>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master
F: tools/testing/selftests
KERNEL VIRTUAL MACHINE (KVM)
W: http://www.linux-kvm.org
T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git
F: mm/kmemleak-test.c
KPROBES
-M: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
+M: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
F: include/net/l3mdev.h
LANTIQ MIPS ARCHITECTURE
-M: John Crispin <blogic@openwrt.org>
+M: John Crispin <john@phrozen.org>
S: Maintained
F: arch/mips/lantiq
F: include/linux/livepatch.h
F: arch/x86/include/asm/livepatch.h
F: arch/x86/kernel/livepatch.c
+F: Documentation/livepatch/
F: Documentation/ABI/testing/sysfs-kernel-livepatch
F: samples/livepatch/
S: Maintained
F: fs/logfs/
-LPC32XX MACHINE SUPPORT
-S: Maintained
-F: arch/arm/mach-lpc32xx/
-
LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
S: Maintained
MARVELL ARMADA DRM SUPPORT
-M: Russell King <rmk+kernel@arm.linux.org.uk>
S: Maintained
F: drivers/gpu/drm/armada/
S: Supported
-F: drivers/*/max14577.c
+F: drivers/*/max14577*.c
F: drivers/*/max77686*.c
-F: drivers/*/max77693.c
+F: drivers/*/max77693*.c
F: drivers/extcon/extcon-max14577.c
F: drivers/extcon/extcon-max77693.c
F: drivers/rtc/rtc-max77686.c
F: Documentation/mips/
F: arch/mips/
+MIPS/LOONGSON1 ARCHITECTURE
+S: Maintained
+F: arch/mips/loongson32/
+F: arch/mips/include/asm/mach-loongson32/
+F: drivers/*/*loongson1*
+F: drivers/*/*/*loongson1*
+
MIROSOUND PCM20 FM RADIO RECEIVER DRIVER
S: Maintained
F: Documentation/scsi/g_NCR5380.txt
+F: Documentation/scsi/dtc3x80.txt
F: drivers/scsi/NCR5380.*
F: drivers/scsi/arm/cumana_1.c
F: drivers/scsi/arm/oak.c
-F: drivers/scsi/atari_NCR5380.c
F: drivers/scsi/atari_scsi.*
F: drivers/scsi/dmx3191d.c
F: drivers/scsi/dtc.*
F: drivers/nfc/nxp-nci
NXP TDA998X DRM DRIVER
-M: Russell King <rmk+kernel@arm.linux.org.uk>
S: Supported
F: drivers/gpu/drm/i2c/tda998x_drv.c
F: include/drm/i2c/tda998x.h
F: drivers/cpufreq/omap-cpufreq.c
OMAP POWERDOMAIN SOC ADAPTATION LAYER SUPPORT
-M: Rajendra Nayak <rnayak@ti.com>
+M: Rajendra Nayak <rnayak@codeaurora.org>
S: Maintained
F: drivers/video/fbdev/aty/aty128fb.c
RALINK MIPS ARCHITECTURE
-M: John Crispin <blogic@openwrt.org>
+M: John Crispin <john@phrozen.org>
S: Maintained
F: arch/mips/ralink
RTL8XXXU WIRELESS DRIVER (rtl8xxxu)
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/jes/linux.git rtl8723au-mac80211
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jes/linux.git rtl8xxxu-devel
S: Maintained
F: drivers/net/wireless/realtek/rtl8xxxu/
S: Supported
F: security/apparmor/
+LOADPIN SECURITY MODULE
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git lsm/loadpin
+S: Supported
+F: security/loadpin/
+
YAMA SECURITY MODULE
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git yama/tip
SFC NETWORK DRIVER
S: Supported
F: drivers/net/ethernet/sfc/
TI DAVINCI MACHINE SUPPORT
-T: git git://gitorious.org/linux-davinci/linux-davinci.git
-Q: http://patchwork.kernel.org/project/linux-davinci/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git
S: Supported
F: arch/arm/mach-davinci/
F: drivers/i2c/busses/i2c-davinci.c
S: Supported
F: drivers/clk/tegra/
-TEGRA DMA DRIVER
+TEGRA DMA DRIVERS
S: Supported
-F: drivers/dma/tegra20-apb-dma.c
+F: drivers/dma/tegra*
TEGRA I2C DRIVER
F: drivers/clk/ti/
F: include/linux/clk/ti.h
+TI ETHERNET SWITCH DRIVER (CPSW)
+S: Maintained
+F: drivers/net/ethernet/ti/cpsw*
+F: drivers/net/ethernet/ti/davinci*
+
TI FLASH MEDIA INTERFACE DRIVER
S: Maintained
F: drivers/media/i2c/tc358743*
F: include/media/i2c/tc358743.h
-TMIO MMC DRIVER
+TMIO/SDHI MMC DRIVER
-S: Maintained
+S: Supported
F: drivers/mmc/host/tmio_mmc*
F: drivers/mmc/host/sh_mobile_sdhi.c
-F: include/linux/mmc/tmio.h
-F: include/linux/mmc/sh_mobile_sdhi.h
+F: include/linux/mfd/tmio.h
TMP401 HARDWARE MONITOR DRIVER
S: Odd Fixes
F: drivers/media/pci/tw68/
+TW686X VIDEO4LINUX DRIVER
+T: git git://linuxtv.org/media_tree.git
+W: http://linuxtv.org
+S: Maintained
+F: drivers/media/pci/tw686x/
+
TPM DEVICE DRIVER
F: kernel/trace/
F: tools/testing/selftests/ftrace/
+TRACING MMIO ACCESSES (MMIOTRACE)
+S: Maintained
+F: kernel/trace/trace_mmiotrace.c
+F: include/linux/mmiotrace.h
+F: arch/x86/mm/kmmio.c
+F: arch/x86/mm/mmio-mod.c
+F: arch/x86/mm/testmmiotrace.c
+
TRIVIAL PATCHES
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial.git
W: http://www.slimlogic.co.uk/?p=48
T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git
S: Supported
+F: Documentation/devicetree/bindings/regulator/
F: drivers/regulator/
+F: include/dt-bindings/regulator/
F: include/linux/regulator/
VRF
config I2C_MV64XXX
tristate "Marvell mv64xxx I2C Controller"
- depends on MV64X60 || PLAT_ORION || ARCH_SUNXI
+ depends on MV64X60 || PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU
help
If you say yes to this option, support will be included for the
built-in I2C interface on the Marvell 64xxx line of host bridges.
config I2C_XLP9XX
tristate "XLP9XX I2C support"
- depends on CPU_XLP || COMPILE_TEST
+ depends on CPU_XLP || ARCH_VULCAN || COMPILE_TEST
help
This driver enables support for the on-chip I2C interface of
- the Broadcom XLP9xx/XLP5xx MIPS processors.
+ the Broadcom XLP9xx/XLP5xx MIPS and Vulcan ARM64 processors.
This driver can also be built as a module. If so, the module will
be called i2c-xlp9xx.
cbd_t __iomem *rbase;
u_char *txbuf[CPM_MAXBD];
u_char *rxbuf[CPM_MAXBD];
- u32 txdma[CPM_MAXBD];
- u32 rxdma[CPM_MAXBD];
+ dma_addr_t txdma[CPM_MAXBD];
+ dma_addr_t rxdma[CPM_MAXBD];
};
static irqreturn_t cpm_i2c_interrupt(int irq, void *dev_id)
tbdf = cpm->tbase + tx;
rbdf = cpm->rbase + rx;
- addr = pmsg->addr << 1;
- if (pmsg->flags & I2C_M_RD)
- addr |= 1;
+ addr = i2c_8bit_addr_from_msg(pmsg);
tb = cpm->txbuf[tx];
rb = cpm->rxbuf[rx];
return -EIO;
}
- clk_prepare_enable(i2c->clk);
+ ret = clk_enable(i2c->clk);
+ if (ret)
+ return ret;
for (i = 0; i < num; i++, msgs++) {
stop = (i == num - 1);
}
out:
- clk_disable_unprepare(i2c->clk);
+ clk_disable(i2c->clk);
return ret;
}
return -ENOENT;
}
- clk_prepare_enable(i2c->clk);
+ ret = clk_prepare_enable(i2c->clk);
+ if (ret)
+ return ret;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
i2c->regs = devm_ioremap_resource(&pdev->dev, mem);
platform_set_drvdata(pdev, i2c);
+ clk_disable(i2c->clk);
+
+ return 0;
+
err_clk:
clk_disable_unprepare(i2c->clk);
return ret;
i2c_del_adapter(&i2c->adap);
+ clk_unprepare(i2c->clk);
+
return 0;
}
i2c->suspended = 1;
+ clk_unprepare(i2c->clk);
+
return 0;
}
struct exynos5_i2c *i2c = platform_get_drvdata(pdev);
int ret = 0;
- clk_prepare_enable(i2c->clk);
+ ret = clk_prepare_enable(i2c->clk);
+ if (ret)
+ return ret;
ret = exynos5_hsi2c_clock_setup(i2c);
if (ret) {
}
exynos5_i2c_init(i2c);
- clk_disable_unprepare(i2c->clk);
+ clk_disable(i2c->clk);
i2c->suspended = 0;
return 0;
#endif
static const struct dev_pm_ops exynos5_i2c_dev_pm_ops = {
- #ifdef CONFIG_PM_SLEEP
- .suspend_noirq = exynos5_i2c_suspend_noirq,
- .resume_noirq = exynos5_i2c_resume_noirq,
- .freeze_noirq = exynos5_i2c_suspend_noirq,
- .thaw_noirq = exynos5_i2c_resume_noirq,
- .poweroff_noirq = exynos5_i2c_suspend_noirq,
- .restore_noirq = exynos5_i2c_resume_noirq,
- #endif
+ SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(exynos5_i2c_suspend_noirq,
+ exynos5_i2c_resume_noirq)
};
static struct platform_driver exynos5_i2c_driver = {
struct notifier_block clk_rate_nb;
/* Settings */
- unsigned int scl_frequency;
- unsigned int scl_rise_ns;
- unsigned int scl_fall_ns;
- unsigned int sda_fall_ns;
+ struct i2c_timings t;
/* Synchronization & notification */
spinlock_t lock;
* Calculate divider values for desired SCL frequency
*
* @clk_rate: I2C input clock rate
- * @scl_rate: Desired SCL rate
- * @scl_rise_ns: How many ns it takes for SCL to rise.
- * @scl_fall_ns: How many ns it takes for SCL to fall.
- * @sda_fall_ns: How many ns it takes for SDA to fall.
+ * @t: Known I2C timing information.
* @div_low: Divider output for low
* @div_high: Divider output for high
*
* a best-effort divider value is returned in divs. If the target rate is
* too high, we silently use the highest possible rate.
*/
- static int rk3x_i2c_calc_divs(unsigned long clk_rate, unsigned long scl_rate,
- unsigned long scl_rise_ns,
- unsigned long scl_fall_ns,
- unsigned long sda_fall_ns,
- unsigned long *div_low, unsigned long *div_high)
+ static int rk3x_i2c_calc_divs(unsigned long clk_rate,
+ struct i2c_timings *t,
+ unsigned long *div_low,
+ unsigned long *div_high)
{
unsigned long spec_min_low_ns, spec_min_high_ns;
unsigned long spec_setup_start, spec_max_data_hold_ns;
int ret = 0;
/* Only support standard-mode and fast-mode */
- if (WARN_ON(scl_rate > 400000))
- scl_rate = 400000;
+ if (WARN_ON(t->bus_freq_hz > 400000))
+ t->bus_freq_hz = 400000;
/* prevent scl_rate_khz from becoming 0 */
- if (WARN_ON(scl_rate < 1000))
- scl_rate = 1000;
+ if (WARN_ON(t->bus_freq_hz < 1000))
+ t->bus_freq_hz = 1000;
/*
* min_low_ns: The minimum number of ns we need to hold low to
* This is because the i2c host on Rockchip holds the data line
* for half the low time.
*/
- if (scl_rate <= 100000) {
+ if (t->bus_freq_hz <= 100000) {
/* Standard-mode */
spec_min_low_ns = 4700;
spec_setup_start = 4700;
spec_max_data_hold_ns = 900;
data_hold_buffer_ns = 50;
}
- min_high_ns = scl_rise_ns + spec_min_high_ns;
+ min_high_ns = t->scl_rise_ns + spec_min_high_ns;
/*
* Timings for repeated start:
* we meet tSU;STA and tHD;STA times.
*/
min_high_ns = max(min_high_ns,
- DIV_ROUND_UP((scl_rise_ns + spec_setup_start) * 1000, 875));
+ DIV_ROUND_UP((t->scl_rise_ns + spec_setup_start) * 1000, 875));
min_high_ns = max(min_high_ns,
- DIV_ROUND_UP((scl_rise_ns + spec_setup_start +
- sda_fall_ns + spec_min_high_ns), 2));
+ DIV_ROUND_UP((t->scl_rise_ns + spec_setup_start +
+ t->sda_fall_ns + spec_min_high_ns), 2));
- min_low_ns = scl_fall_ns + spec_min_low_ns;
+ min_low_ns = t->scl_fall_ns + spec_min_low_ns;
max_low_ns = spec_max_data_hold_ns * 2 - data_hold_buffer_ns;
min_total_ns = min_low_ns + min_high_ns;
/* Adjust to avoid overflow */
clk_rate_khz = DIV_ROUND_UP(clk_rate, 1000);
- scl_rate_khz = scl_rate / 1000;
+ scl_rate_khz = t->bus_freq_hz / 1000;
/*
* We need the total div to be >= this number
static void rk3x_i2c_adapt_div(struct rk3x_i2c *i2c, unsigned long clk_rate)
{
+ struct i2c_timings *t = &i2c->t;
unsigned long div_low, div_high;
u64 t_low_ns, t_high_ns;
int ret;
- ret = rk3x_i2c_calc_divs(clk_rate, i2c->scl_frequency, i2c->scl_rise_ns,
- i2c->scl_fall_ns, i2c->sda_fall_ns,
- &div_low, &div_high);
- WARN_ONCE(ret != 0, "Could not reach SCL freq %u", i2c->scl_frequency);
+ ret = rk3x_i2c_calc_divs(clk_rate, t, &div_low, &div_high);
+ WARN_ONCE(ret != 0, "Could not reach SCL freq %u", t->bus_freq_hz);
clk_enable(i2c->clk);
i2c_writel(i2c, (div_high << 16) | (div_low & 0xffff), REG_CLKDIV);
dev_dbg(i2c->dev,
"CLK %lukhz, Req %uns, Act low %lluns high %lluns\n",
clk_rate / 1000,
- 1000000000 / i2c->scl_frequency,
+ 1000000000 / t->bus_freq_hz,
t_low_ns, t_high_ns);
}
switch (event) {
case PRE_RATE_CHANGE:
- if (rk3x_i2c_calc_divs(ndata->new_rate, i2c->scl_frequency,
- i2c->scl_rise_ns, i2c->scl_fall_ns,
- i2c->sda_fall_ns,
+ if (rk3x_i2c_calc_divs(ndata->new_rate, &i2c->t,
&div_low, &div_high) != 0)
return NOTIFY_STOP;
static const struct of_device_id rk3x_i2c_match[] = {
{ .compatible = "rockchip,rk3066-i2c", .data = (void *)&soc_data[0] },
{ .compatible = "rockchip,rk3188-i2c", .data = (void *)&soc_data[1] },
+ { .compatible = "rockchip,rk3228-i2c", .data = (void *)&soc_data[2] },
{ .compatible = "rockchip,rk3288-i2c", .data = (void *)&soc_data[2] },
{},
};
match = of_match_node(rk3x_i2c_match, np);
i2c->soc_data = (struct rk3x_i2c_soc_data *)match->data;
- if (of_property_read_u32(pdev->dev.of_node, "clock-frequency",
- &i2c->scl_frequency)) {
- dev_info(&pdev->dev, "using default SCL frequency: %d\n",
- DEFAULT_SCL_RATE);
- i2c->scl_frequency = DEFAULT_SCL_RATE;
- }
-
- if (i2c->scl_frequency == 0 || i2c->scl_frequency > 400 * 1000) {
- dev_warn(&pdev->dev, "invalid SCL frequency specified.\n");
- dev_warn(&pdev->dev, "using default SCL frequency: %d\n",
- DEFAULT_SCL_RATE);
- i2c->scl_frequency = DEFAULT_SCL_RATE;
- }
-
- /*
- * Read rise and fall time from device tree. If not available use
- * the default maximum timing from the specification.
- */
- if (of_property_read_u32(pdev->dev.of_node, "i2c-scl-rising-time-ns",
- &i2c->scl_rise_ns)) {
- if (i2c->scl_frequency <= 100000)
- i2c->scl_rise_ns = 1000;
- else
- i2c->scl_rise_ns = 300;
- }
- if (of_property_read_u32(pdev->dev.of_node, "i2c-scl-falling-time-ns",
- &i2c->scl_fall_ns))
- i2c->scl_fall_ns = 300;
- if (of_property_read_u32(pdev->dev.of_node, "i2c-sda-falling-time-ns",
- &i2c->sda_fall_ns))
- i2c->sda_fall_ns = i2c->scl_fall_ns;
+ /* use common interface to get I2C timing properties */
+ i2c_parse_fw_timings(&pdev->dev, &i2c->t, true);
strlcpy(i2c->adap.name, "rk3x-i2c", sizeof(i2c->adap.name));
i2c->adap.owner = THIS_MODULE;
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/i2c.h>
- #include <linux/i2c-mux.h>
#include <linux/iio/iio.h>
#include <linux/module.h>
#include "inv_mpu_iio.h"
.val_bits = 8,
};
- /*
- * The i2c read/write needs to happen in unlocked mode. As the parent
- * adapter is common. If we use locked versions, it will fail as
- * the mux adapter will lock the parent i2c adapter, while calling
- * select/deselect functions.
- */
- static int inv_mpu6050_write_reg_unlocked(struct i2c_client *client,
- u8 reg, u8 d)
+ static int inv_mpu6050_select_bypass(struct i2c_mux_core *muxc, u32 chan_id)
{
- int ret;
- u8 buf[2] = {reg, d};
- struct i2c_msg msg[1] = {
- {
- .addr = client->addr,
- .flags = 0,
- .len = sizeof(buf),
- .buf = buf,
- }
- };
-
- ret = __i2c_transfer(client->adapter, msg, 1);
- if (ret != 1)
- return ret;
-
- return 0;
- }
-
- static int inv_mpu6050_select_bypass(struct i2c_adapter *adap, void *mux_priv,
- u32 chan_id)
- {
- struct i2c_client *client = mux_priv;
- struct iio_dev *indio_dev = dev_get_drvdata(&client->dev);
+ struct iio_dev *indio_dev = i2c_mux_priv(muxc);
struct inv_mpu6050_state *st = iio_priv(indio_dev);
int ret = 0;
/* Use the same mutex which was used everywhere to protect power-op */
mutex_lock(&indio_dev->mlock);
if (!st->powerup_count) {
- ret = inv_mpu6050_write_reg_unlocked(client,
- st->reg->pwr_mgmt_1, 0);
+ ret = regmap_write(st->map, st->reg->pwr_mgmt_1, 0);
if (ret)
goto write_error;
}
if (!ret) {
st->powerup_count++;
- ret = inv_mpu6050_write_reg_unlocked(client,
- st->reg->int_pin_cfg,
- INV_MPU6050_INT_PIN_CFG |
- INV_MPU6050_BIT_BYPASS_EN);
+ ret = regmap_write(st->map, st->reg->int_pin_cfg,
+ INV_MPU6050_INT_PIN_CFG |
+ INV_MPU6050_BIT_BYPASS_EN);
}
write_error:
mutex_unlock(&indio_dev->mlock);
return ret;
}
- static int inv_mpu6050_deselect_bypass(struct i2c_adapter *adap,
- void *mux_priv, u32 chan_id)
+ static int inv_mpu6050_deselect_bypass(struct i2c_mux_core *muxc, u32 chan_id)
{
- struct i2c_client *client = mux_priv;
- struct iio_dev *indio_dev = dev_get_drvdata(&client->dev);
+ struct iio_dev *indio_dev = i2c_mux_priv(muxc);
struct inv_mpu6050_state *st = iio_priv(indio_dev);
mutex_lock(&indio_dev->mlock);
/* It doesn't really mattter, if any of the calls fails */
- inv_mpu6050_write_reg_unlocked(client, st->reg->int_pin_cfg,
- INV_MPU6050_INT_PIN_CFG);
+ regmap_write(st->map, st->reg->int_pin_cfg, INV_MPU6050_INT_PIN_CFG);
st->powerup_count--;
if (!st->powerup_count)
- inv_mpu6050_write_reg_unlocked(client, st->reg->pwr_mgmt_1,
- INV_MPU6050_BIT_SLEEP);
+ regmap_write(st->map, st->reg->pwr_mgmt_1,
+ INV_MPU6050_BIT_SLEEP);
mutex_unlock(&indio_dev->mlock);
return 0;
}
+static const char *inv_mpu_match_acpi_device(struct device *dev, int *chip_id)
+{
+ const struct acpi_device_id *id;
+
+ id = acpi_match_device(dev->driver->acpi_match_table, dev);
+ if (!id)
+ return NULL;
+
+ *chip_id = (int)id->driver_data;
+
+ return dev_name(dev);
+}
+
/**
* inv_mpu_probe() - probe function.
* @client: i2c client.
const struct i2c_device_id *id)
{
struct inv_mpu6050_state *st;
- int result;
- const char *name = id ? id->name : NULL;
+ int result, chip_type;
struct regmap *regmap;
+ const char *name;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_I2C_BLOCK))
return -EOPNOTSUPP;
+ if (id) {
+ chip_type = (int)id->driver_data;
+ name = id->name;
+ } else if (ACPI_HANDLE(&client->dev)) {
+ name = inv_mpu_match_acpi_device(&client->dev, &chip_type);
+ if (!name)
+ return -ENODEV;
+ } else {
+ return -ENOSYS;
+ }
+
regmap = devm_regmap_init_i2c(client, &inv_mpu_regmap_config);
if (IS_ERR(regmap)) {
dev_err(&client->dev, "Failed to register i2c regmap %d\n",
}
result = inv_mpu_core_probe(regmap, client->irq, name,
- NULL, id->driver_data);
+ NULL, chip_type);
if (result < 0)
return result;
st = iio_priv(dev_get_drvdata(&client->dev));
- st->mux_adapter = i2c_add_mux_adapter(client->adapter,
- &client->dev,
- client,
- 0, 0, 0,
- inv_mpu6050_select_bypass,
- inv_mpu6050_deselect_bypass);
- if (!st->mux_adapter) {
- result = -ENODEV;
+ st->muxc = i2c_mux_alloc(client->adapter, &client->dev,
+ 1, 0, I2C_MUX_LOCKED,
+ inv_mpu6050_select_bypass,
+ inv_mpu6050_deselect_bypass);
+ if (!st->muxc) {
+ result = -ENOMEM;
goto out_unreg_device;
}
+ st->muxc->priv = dev_get_drvdata(&client->dev);
+ result = i2c_mux_add_adapter(st->muxc, 0, 0, 0);
+ if (result)
+ goto out_unreg_device;
result = inv_mpu_acpi_create_mux_client(client);
if (result)
return 0;
out_del_mux:
- i2c_del_mux_adapter(st->mux_adapter);
+ i2c_mux_del_adapters(st->muxc);
out_unreg_device:
inv_mpu_core_remove(&client->dev);
return result;
struct inv_mpu6050_state *st = iio_priv(indio_dev);
inv_mpu_acpi_delete_mux_client(client);
- i2c_del_mux_adapter(st->mux_adapter);
+ i2c_mux_del_adapters(st->muxc);
return inv_mpu_core_remove(&client->dev);
}
enum fe_status fe_status;
u32 dvbv3_ber; /* for old DVBv3 API read_ber */
bool warm; /* FW running */
- struct i2c_adapter *i2c_adapter;
+ struct i2c_mux_core *muxc;
/* auto detect chip id to do different config */
u8 chip_id;
/* main mclk is calculated for M88RS6000 dynamically */
- u32 mclk_khz;
+ s32 mclk_khz;
u64 post_bit_error;
u64 post_bit_count;
};
int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
{
int errCode = 0;
- int actlen, ret = -ENOMEM;
+ int actlen = -1;
+ int ret = -ENOMEM;
u32 *buffer;
buffer = kzalloc(4096, GFP_KERNEL);
cx231xx_i2c_register(&dev->i2c_bus[1]);
cx231xx_i2c_register(&dev->i2c_bus[2]);
+ errCode = cx231xx_i2c_mux_create(dev);
+ if (errCode < 0)
+ return errCode;
cx231xx_i2c_mux_register(dev, 0);
cx231xx_i2c_mux_register(dev, 1);
void cx231xx_dev_uninit(struct cx231xx *dev)
{
/* Un Initialize I2C bus */
- cx231xx_i2c_mux_unregister(dev, 1);
- cx231xx_i2c_mux_unregister(dev, 0);
+ cx231xx_i2c_mux_unregister(dev);
cx231xx_i2c_unregister(&dev->i2c_bus[2]);
cx231xx_i2c_unregister(&dev->i2c_bus[1]);
cx231xx_i2c_unregister(&dev->i2c_bus[0]);
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