Update the power sample and drivers with the new device driver power
management API using the existing logic
Jira: ZEP-954
Change-Id: Idd94232e458767635973e94e9fc673c01612c1e2
Signed-off-by: Amir Kaplan <amir.kaplan@intel.com>
Drivers that implement power management should use the preferred
device_pm_ops method instead.
Change-Id: I337722b1e06afe8508b5c84c00c3542571232e07
Signed-off-by: Iván Briano <ivan.briano@intel.com>
The suspend and resume hooks in the spi_driver_api struct are relics
from before the current power management infrastructure was in place.
The correct way to implement this now is through the device_pm_ops
struct, by way of the DEFINE_DEVICE_PM_OPS and DEVICE_AND_API_INIT_PM
macros, which make the hooks available through a generic mechanism for
all devices, rather than using per-type APIs.
Since the existing spi_suspend() and spi_resume() functions don't check
if the driver_api hooks are NULL, there's now a place holder function
to prevent breaking functionality until the hooks are removed.
Change-Id: I6a3e3db370860ad46f428d287943b1ca58a80ae1
Signed-off-by: Iván Briano <ivan.briano@intel.com>
SPI drivers for K64 is now using system log.
Change-Id: Ifd0d321e2ff84c581261b7cb3a7a4485afbd67f6
Signed-off-by: Genaro Saucedo Tejada <genaro.saucedo.tejada@intel.com>
JIRA: ZEP-311
The base address, IRQ line, chip select numbers, and clock
gating constants are static per SoC, so there is no need to
make them configurable in Kconfig.
Change-Id: I9f87ca29c28c38c42d4e4f1a3a41fa231f63ef03
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This patch replaces all occurences of the macro DEV_USED by -EBUSY
at the driver level. So this patch touch the files under drivers/,
include/ and samples/drivers/ when applicable.
This patch is part of the effort to transition from DEV_* codes to
errno.h codes.
Change-Id: I21eb3ffe9bdfde98593dcf63c50a8bdcd376e49e
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
This patch replaces all occurences of the macro DEV_INVALID_OP by
-ENOTSUP at the driver level. So this patch touch the files under
drivers/, include/ and samples/drivers/ when applicable.
This patch is part of the effort to transition from DEV_* codes to
errno.h codes.
Change-Id: I46aec3c65963018c479b01602e4a3eec8650eaff
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
This patch replaces all occurences of the macro DEV_FAIL by -EIO
at the driver level. So this patch touch the files under drivers/,
include/ and samples/drivers/ when applicable.
This patch is part of the effort to transition from DEV_* codes to
errno.h codes.
Change-Id: I0594ab5dbe667e074c250129e7c13ce512ac940f
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
This patch replaces all occurences of the macro DEV_OK by the actual
value 0 at the driver level. So this patch touch the files under
drivers/, include/ and samples/drivers/.
This patch is part of the effort to transition from DEV_* codes to
errno.h codes.
Change-Id: I69980ecb9755f2fb026de5668ae9c21a4ae62d1e
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Support for Freescale/NXP K64 SPI modules, limited to:
- Master mode
- A single active set of clock and transfer attributes (CTAR0), which
includes non-adjustable delay parameters
- Tx FIFO fill and Rx FIFO drain interrupt handling
- Standard, continuous select and continuous SCK SPI transfer formats
Also, divide-by-zero code generation in this driver is prevented.
The 'volatile' attribute is added to some of the variables in the baud
rate and delay calculation functions of the K64 SPI driver in order to
prevent bad code generation by gcc toolchains for ARM seen when an
optimization setting above -O0 is used.
Specifically, a register is loaded with the constant 0 and is used as
the divisor in a following divide instruction, resulting in a
divide-by-zero exception.
This issue has been seen with gcc versions 4.8.1 (the VxWorks toolchain)
and 5.2.0 (the Zephyr SDK toolchain).
Change-Id: Ib5b2b748aad8fdfd5e8d40544e6e1abef3713abe
Signed-off-by: Jeff Blais <jeff.blais@windriver.com>
