Poll for a well defined time in musb_init. The current counting loop
takes too short for some devices. Tested on OMAP3 with a rather slowish
memory stick.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
GPMC_CONFIG4_WEEXTRADELAY should be set depending on we_extra_delay,
not on oe_extra_delay. This seems to be copy-pasted from two lines above.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The m25p80 driver now depends on MTD_SPI_NOR which is disabled in all
defconfigs, so this effectively disables the m25p80 driver in all
defconfigs. Fix this by selecting MTD_SPI_NOR which is library code
without further dependencies. Also let m25p80 depend on SPI because
it needs the SPI code and won't link without it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Now that we also have PXA3XX support the dependency on
ARCH_PXA is too broad for this driver.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Now that we also have PXA3XX support the dependency on
ARCH_PXA is too broad for this driver.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The clock-frequency property is never read because the driver
bails out earlier when it is unable to clk_get the clk. Move
the clock-frequency read out to the dt setup code which is
executed before the driver bails out due to the missing clk.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The caller will show a message, no need to do this in UBI. This
is for the case when mtd_detect calls ubi_attach_mtd_dev. mtd_detect
does not know whether this is already attached and it's not an error.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Hook UBI attachment into the mtd class devices detect function. This
makes it possible to attach ubi devices with 'detect nand0.root'.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Instead of naming all ubi devices and cdev names ubi<num> append
'.ubi' to the original mtd name. This makes ubi device and cdev
names predictable. With this ubi0 becomes nand0.root.ubi. Also
do the same for volume names, so ubi0.root becomes nand0.root.ubi.root.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Let device_detect_by_name detect parent devices aswell. We
separate the devname strings by colons and call device_detect()
for each component. This makes it possible for example to
detect nand0.root.ubi.root
With the above detect will be called for nand0, nand0.root, nand0.root.ubi
and nand0.root.ubi.root. The nand0.root detection step will detect the
UBI volume and attach it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Apparently this was here to fix issues with some QEMU version,
but hasn't worked in the intended way for a long time. The probe
code should be mature enough by now, so this workaround isn't
needed anymore.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The probe code now does a much better job at detecting bad BARs.
Also make sure to preserve any previous content of the BAR
registers if we don't relocate them.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The mtd concat layer supports concatenating several MTD devices
into a single one. This is nearly as-is from the corresponding
Kernel code.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- use consistent variable types (drop uchar, ushort and friends)
- remove whitespace between functions and opening brace
- Add some blank lines to rectify code
- drop 'rc' and 'retcode' and use 'ret' consistently
- Do not put variable assignment into if()
- drop unncessary braces
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Some members in struct cfi_qry are unaligned. Use get_unaligned_*
to access them. Fixes unaligned aborts on busses which don't support
unaligned accesses.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Some messages produce a lot of log spam. Turn them into
dev_vdbg to make some more important messages more visible.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Use variables instead of long defines to get the loops into a single
line. Also use goto to move the deeply indented code more to the left.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
TO get rid of some ifdefs. While at it add the vendor code of
the unsupported vendor to the error message.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add the parameter to boot from ubifs fileystems. This assumes that
there will be only one UBI device registered in the kernel, otherwise
there is no way to predict the ubi number.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Matching a device node is enough since a device node may have
multiple PWMs. Check for a id aswell.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a small backlight layer. It provides a backlight device
on which the brightness parameter can be used to adjust the brightness.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
