From mboxrd@z Thu Jan 1 00:00:00 1970 From: dirk.behme@gmail.com (Dirk Behme) Date: Thu, 29 May 2014 06:58:55 +0200 Subject: [PATCH 0/5] serial: imx: fixes In-Reply-To: <20140528193442.GA7066@kroah.com> References: <1399648788-26061-1-git-send-email-dean_jenkins@mentor.com> <20140528193442.GA7066@kroah.com> Message-ID: <5386BE8F.20605@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Am 28.05.2014 21:34, schrieb Greg KH: > On Fri, May 09, 2014 at 04:19:43PM +0100, dean_jenkins at mentor.com wrote: >> From: Dean Jenkins >> >> The following set of patches were tested on an i.MX6 multi-core platform. >> >> Patches 1 to 4 were tested using a Bluetooth BCSP UART connection at 115.2kbps >> and 4Mbps. The fixes were needed because the i.MX6 UART driver caused spinlock >> deadlocks with the HCI TTY layer. >> >> Patch 5 improves the i.MX6 UART driver for use with kdb. >> >> Patch 1: serial: imx: remove unneeded imx_transmit_buffer() from imx_start_tx() >> Patch 2: serial: imx: remove uart_write_wakeup() from imx_transmit_buffer() >> Patch 3: serial: imx: avoid spinlock recursion deadlock >> Patch 4: serial: imx: move imx_transmit_buffer() into imx_txint() >> Patch 5: serial: imx: clean up imx_poll_get_char() >> >> The patches are based off 3.15-rc4. >> >> ---------------------------------------------------------------- >> Andy Lowe (1): >> serial: imx: avoid spinlock recursion deadlock >> >> Dirk Behme (4): >> serial: imx: remove unneeded imx_transmit_buffer() from imx_start_tx() >> serial: imx: remove uart_write_wakeup() from imx_transmit_buffer() >> serial: imx: move imx_transmit_buffer() into imx_txint() >> serial: imx: clean up imx_poll_get_char() >> >> drivers/tty/serial/imx.c | 73 ++++++++++++++-------------------------------- >> 1 file changed, 22 insertions(+), 51 deletions(-) > > Given the rather confusing threads based on these patches, I don't know > what to apply. > > Dean, can you respin what patches you want applied Well, we think patches #1-#4 are correct and should be applied, but Huang has the opinion that this is fixed already in the BT stack. If Huang doesn't change his mind, then let's drop #1-#4. Patch #5 addresses an other topic and therefore should be resent, then. Best regards Dirk