BMC/Intel-BMC/linux.git/drivers/hsi/clients, branch dev-4.6

HSI: ssi-protocol: Use handshake logic from n950

2016-01-28T16:47:56+00:00

When using the ssi-protocol driver with the Nokia N950, the following error is thrown during modem powered up sequence. [13852.274993] port0: SSI error: 0x01 [13852.279205] ssi-protocol ssi-protocol: RX error detected [13852.284820] ssi-protocol ssi-protocol: Main state: 1 [13852.290069] ssi-protocol ssi-protocol: Recv state: 0 [13852.295288] ssi-protocol ssi-protocol: Send state: 0 [13852.300537] ssi-protocol ssi-protocol: CMT Offline [13852.305603] ssi-protocol ssi-protocol: Wake test 1 [13852.310638] ssi-protocol ssi-protocol: Data RX id: 0 [13852.315887] ssi-protocol ssi-protocol: Data TX id: 0 [13856.001464] ssi-protocol ssi-protocol: Watchdog trigerred [13856.007293] ssi-protocol ssi-protocol: Main state: 1 [13856.012542] ssi-protocol ssi-protocol: Recv state: 0 [13856.017761] ssi-protocol ssi-protocol: Send state: 0 [13856.023010] ssi-protocol ssi-protocol: CMT Offline [13856.028045] ssi-protocol ssi-protocol: Wake test 0 [13856.033111] ssi-protocol ssi-protocol: Data RX id: 0 [13856.038330] ssi-protocol ssi-protocol: Data TX id: 0 This patch fixes the issue by using the handshake setup from the Nokia N950 kernel. The new handshake sequence also works with the N900, so there is no need to differentiate between both modems. Tested-by: Aaro Koskinen Signed-off-by: Sebastian Reichel

HSI: nokia-modem: add n950 and n9 support

2016-01-28T16:46:08+00:00

The Nokia N950 and Nokia N9 also have a SSI connected modem, which use the same protocols as the Nokia N900, but with increased link speed (96000 kbps instead of 55000 kbps) and with less GPIOs. Since it's unclear, if the N950 and the N9 use exactly the same modem, each of them gets their own compatible string. Acked-by: Rob Herring Tested-by: Aaro Koskinen Signed-off-by: Sebastian Reichel

HSI: Fix a typo

2015-09-18T21:02:08+00:00

Signed-off-by: Jakub Wilk Signed-off-by: Sebastian Reichel

mm: mark most vm_operations_struct const

2015-09-10T20:29:01+00:00

With two exceptions (drm/qxl and drm/radeon) all vm_operations_struct structs should be constant. Signed-off-by: Kirill A. Shutemov Reviewed-by: Oleg Nesterov Cc: "H. Peter Anvin" Cc: Andy Lutomirski Cc: Dave Hansen Cc: Ingo Molnar Cc: Minchan Kim Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

HSI: nokia-modem: use flags argument of devm_gpiod_get to set direction

2015-06-23T00:40:03+00:00

Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions) which appeared in v3.17-rc1, the gpiod_get* functions take an additional parameter that allows to specify direction and initial value for output. Use this to simplify the driver. Furthermore this is one caller less that stops us making the flags argument to gpiod_get*() mandatory. Signed-off-by: Uwe Kleine-König Acked-by: Alexandre Courbot Signed-off-by: Sebastian Reichel

HSI: nokia-modem: Reduce missing driver message to debug level

2015-06-23T00:40:03+00:00

Reduce message priority from dev_err to dev_dbg for missing cmt-speech or ssi-protocol drivers, since they will be probed again and it may result in spamming the boot log. Reported-by: Aaro Koskinen Signed-off-by: Sebastian Reichel

HSI: cmt_speech: fix timestamp interface

2015-06-23T00:40:03+00:00

The user interface for timestamps in the new cmt_speech driver is broken in multiple ways: - The layout is incompatible between 32-bit and 64-bit user space, because of the size differences in 'struct timespec'. This means that the driver can not work when used with 32-bit user space on a 64-bit kernel. - As there are plans to change 32-bit user space to use a 64-bit time_t type in the future, it will also be incompatible with new 32-bit user space. - It is using ktime_get_ts under it's deprecated alias (do_posix_clock_monotonic_gettime). To keep support for the user space tools written for this driver (which have lived many years out-of-tree), the interface has been hardened to unsigned 32-bit values. Reported-by: Arnd Bergmann Signed-off-by: Sebastian Reichel

HSI: cmt_speech: fix error return code

2015-04-05T12:45:27+00:00

Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // Signed-off-by: Julia Lawall Signed-off-by: Sebastian Reichel

HSI: nokia-modem: Add cmt-speech support

2015-03-31T20:19:43+00:00

Register cmt-speech driver in nokia-modem driver and forward hsi channel information. Acked-by: Aaro Koskinen Tested-by: Pavel Machek Signed-off-by: Sebastian Reichel

HSI: cmt_speech: Add cmt-speech driver

2015-03-31T20:14:04+00:00

Introduces the cmt-speech driver, which implements a character device interface for transferring speech data frames over HSI/SSI. The driver is used to exchange voice/speech data between the Nokia N900/N950/N9's modem and its cpu. Signed-off-by: Kai Vehmanen Signed-off-by: Carlos Chinea Signed-off-by: Joni Lapilainen Since the original driver has been written for 2.6.28 some build fixes and general cleanups have been added by me: * fix build for 4.0 kernel * replace GFP_ATOMIC with GFP_KERNEL in cs_alloc_cmds() * add sanity check for CS_SET_WAKELINE ioctl * cleanup driver initialisation * rename driver to cmt-speech to be consistent with ssi-protocol driver * move cs-protocol.h to include/uapi/linux/hsi, since it describes a userspace API * replace hardcoded channels numbers with values provided via the HSI framework (e.g. coming from DT) Acked-by: Aaro Koskinen Tested-by: Pavel Machek Signed-off-by: Sebastian Reichel