kernel/drivers/i3c/master, branch linux-5.1.y

i3c: dw: Fix dw_i3c_master_disable controller by using correct mask

2019-04-10T10:46:20Z

The controller was being disabled incorrectly. The correct way is to clear the DEV_CTRL_ENABLE bit. Fix this by clearing this bit. Cc: Boris Brezillon Cc: Fixes: 1dd728f5d4d4 ("i3c: master: Add driver for Synopsys DesignWare IP") Signed-off-by: Vitor Soares Signed-off-by: Boris Brezillon

Merge tag 'i3c/for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

2019-03-05T03:05:02Z

Pull i3c updates from Boris Brezillon: - Add a /* fall-through */ comment in the dw-i3c-master driver - Update the I3C entries in MAINTAINERS to add an IRC chan * tag 'i3c/for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: master: dw-i3c-master: mark expected switch fall-through MAINTAINERS: Add an IRC channel for the I3C subsystem

i3c: master: dw-i3c-master: mark expected switch fall-through

2019-02-28T08:47:53Z

In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: drivers/i3c/master/dw-i3c-master.c: In function ‘dw_i3c_master_bus_init’: drivers/i3c/master/dw-i3c-master.c:603:6: warning: this statement may fall through [-Wimplicit-fallthrough=] if (ret) ^ drivers/i3c/master/dw-i3c-master.c:605:2: note: here case I3C_BUS_MODE_PURE: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva Acked-by: Vitor Soares Signed-off-by: Boris Brezillon

i3c: master: dw: fix deadlock

2019-01-26T10:14:25Z

In dw_i3c_master_irq_handler(), we already have gotten &master->xferqueue.lock, if we try to get the same lock again in dw_i3c_master_dequeue_xfer(), deadlock happens. We fix this issue by introduing dw_i3c_master_dequeue_xfer_locked() which does all what dw_i3c_master_dequeue_xfer() does without trying to lock &master->xferqueue.lock. Signed-off-by: Jisheng Zhang Acked-by: Vitor Soares Signed-off-by: Boris Brezillon

i3c: master: dw-i3c-master: fix i3c_attach/reattach

2019-01-15T10:15:11Z

This patch fix i3c_attach/reattach functions. During the i3c_attach the driver ignores the static address used for SETDASA CCC command. During the i3c_reattach the driver doesn't update master->addrs[data->index] with new address if old_dyn_addr = 0. Fixes: 1dd728f5d4d4 ("i3c: master: Add driver for Synopsys DesignWare IP") Signed-off-by: Vitor Soares Signed-off-by: Boris Brezillon

i3c: master: Fix an error checking typo in 'cdns_i3c_master_probe()'

2019-01-07T13:18:17Z

Fix a cut'n'paste typo. Checking 'master->sysclk' is expected here. Fixes: 603f2bee2c54 ("i3c: master: Add driver for Cadence IP") Signed-off-by: Christophe JAILLET Signed-off-by: Boris Brezillon

i3c: master: cdns: fix I2C transfers in Cadence I3C master driver

2018-12-12T16:08:32Z

This patch fixes I2C transfers in Cadence I3C master driver. There was no way to queue more than one I2C transfer before. Fixes: 603f2bee2c54 ("i3c: master: Add driver for Cadence IP") Signed-off-by: Przemyslaw Gaj Signed-off-by: Boris Brezillon

i3c: master: dw: fix mask operation by using the correct operator

2018-12-05T16:22:58Z

The masking operation on status is using a bitwise 'or' rather than a bitwise 'and' operator, and hence the result is always non-zero which is probably not what is intended. Fix this by using the correct operator. Detected by CoverityScan, CID#1475523 ("Wrong operator used") Fixes: 88acc98a712a ("i3c: master: Add driver for Synopsys DesignWare IP") Signed-off-by: Colin Ian King Acked-by: Vitor Soares Signed-off-by: Boris Brezillon

i3c: master: Add driver for Synopsys DesignWare IP

2018-12-05T16:22:58Z

Add driver for Synopsys DesignWare I3C master IP Signed-off-by: Vitor Soares Signed-off-by: Boris Brezillon

i3c: master: Remove set but not used variable 'old_i3c_scl_lim'

2018-12-05T16:22:58Z

Fixes gcc '-Wunused-but-set-variable' warning: drivers/i3c/master/i3c-master-cdns.c: In function 'cdns_i3c_master_do_daa': drivers/i3c/master/i3c-master-cdns.c:1137:16: warning: variable 'old_i3c_scl_lim' set but not used [-Wunused-but-set-variable] It never used since introdution in commit acfab7d324b2 ("i3c: master: Add driver for Cadence IP") Signed-off-by: YueHaibing Signed-off-by: Boris Brezillon