From: Felipe Balbi <balbi@ti.com> To: alan@linux.intel.com Cc: Tony Lindgren <tony@atomide.com>, Kevin Hilman <khilman@ti.com>, Linux OMAP Mailing List <linux-omap@vger.kernel.org>, Linux ARM Kernel Mailing List <linux-arm-kernel@lists.infradead.org>, linux-serial@vger.kernel.org, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Santosh Shilimkar <santosh.shilimkar@ti.com>, Shubhrajyoti Datta <shubhrajyoti@ti.com>, Felipe Balbi <balbi@ti.com> Subject: [PATCH v2 00/13] OMAP Serial patches Date: Tue, 21 Aug 2012 15:15:58 +0300 [thread overview] Message-ID: <1345551371-18862-1-git-send-email-balbi@ti.com> (raw) In-Reply-To: <1345540555-24359-1-git-send-email-balbi@ti.com> Hi guys, here's a series of cleanup patches to the OMAP serial driver. A later series could be made re-implementing DMA using the DMA Engine API. Note that for RX DMA we could be using RX Timeout IRQ as a hint that we better use PIO instead ;-) All patches were tested on my pandaboard, but I'd really like to receive Tested-by on other platforms. After this goes in, I'll probably try to get UART wakeup working again and only after that look at DMA. Changes since v1: . improved commit log on patch 9/13 (formerly 10/13) . removed patch 2/13 . added a new patch switching from spin_lock_irqsave() to spin_lock and spin_unlock_irqrestore to spin_unlock Retested with my pandaboard, UART continues to work: # grep -i uart /proc/interrupts 106: 124 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 189 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 255 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 321 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 387 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 453 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 519 0 GIC OMAP UART2 cheers ps: if anyone knows a better test for UART, let me know. for convenience of anyone testing, patches are available on my git tree [1] on branch uart [1] git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git uart Felipe Balbi (13): serial: omap: define and use to_uart_omap_port() serial: omap: define helpers for pdata function pointers serial: omap: don't access the platform_device serial: omap: drop DMA support serial: add OMAP-specific defines serial: omap: simplify IRQ handling serial: omap: refactor receive_chars() into rdi/rlsi handlers serial: omap: move THRE check to transmit_chars() serial: omap: stick to put_autosuspend serial: omap: set dev->drvdata before enabling pm_runtime serial: omap: drop unnecessary check from remove serial: omap: make sure to suspend device before remove serial: omap: don't save IRQ flags on hardirq arch/arm/mach-omap2/serial.c | 15 +- arch/arm/plat-omap/include/plat/omap-serial.h | 12 +- drivers/tty/serial/omap-serial.c | 713 +++++++++----------------- include/linux/serial_reg.h | 4 + 4 files changed, 254 insertions(+), 490 deletions(-) -- 1.7.12.rc3
WARNING: multiple messages have this Message-ID (diff)
From: balbi@ti.com (Felipe Balbi) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 00/13] OMAP Serial patches Date: Tue, 21 Aug 2012 15:15:58 +0300 [thread overview] Message-ID: <1345551371-18862-1-git-send-email-balbi@ti.com> (raw) In-Reply-To: <1345540555-24359-1-git-send-email-balbi@ti.com> Hi guys, here's a series of cleanup patches to the OMAP serial driver. A later series could be made re-implementing DMA using the DMA Engine API. Note that for RX DMA we could be using RX Timeout IRQ as a hint that we better use PIO instead ;-) All patches were tested on my pandaboard, but I'd really like to receive Tested-by on other platforms. After this goes in, I'll probably try to get UART wakeup working again and only after that look at DMA. Changes since v1: . improved commit log on patch 9/13 (formerly 10/13) . removed patch 2/13 . added a new patch switching from spin_lock_irqsave() to spin_lock and spin_unlock_irqrestore to spin_unlock Retested with my pandaboard, UART continues to work: # grep -i uart /proc/interrupts 106: 124 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 189 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 255 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 321 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 387 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 453 0 GIC OMAP UART2 # grep -i uart /proc/interrupts 106: 519 0 GIC OMAP UART2 cheers ps: if anyone knows a better test for UART, let me know. for convenience of anyone testing, patches are available on my git tree [1] on branch uart [1] git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git uart Felipe Balbi (13): serial: omap: define and use to_uart_omap_port() serial: omap: define helpers for pdata function pointers serial: omap: don't access the platform_device serial: omap: drop DMA support serial: add OMAP-specific defines serial: omap: simplify IRQ handling serial: omap: refactor receive_chars() into rdi/rlsi handlers serial: omap: move THRE check to transmit_chars() serial: omap: stick to put_autosuspend serial: omap: set dev->drvdata before enabling pm_runtime serial: omap: drop unnecessary check from remove serial: omap: make sure to suspend device before remove serial: omap: don't save IRQ flags on hardirq arch/arm/mach-omap2/serial.c | 15 +- arch/arm/plat-omap/include/plat/omap-serial.h | 12 +- drivers/tty/serial/omap-serial.c | 713 +++++++++----------------- include/linux/serial_reg.h | 4 + 4 files changed, 254 insertions(+), 490 deletions(-) -- 1.7.12.rc3
next prev parent reply other threads:[~2012-08-21 12:20 UTC|newest] Thread overview: 129+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-08-21 9:15 [RFC/PATCH 00/13] OMAP UART patches Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 01/13] serial: omap: define and use to_uart_omap_port() Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 02/13] serial: omap: always return IRQ_HANDLED Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 11:50 ` Alan Cox 2012-08-21 11:50 ` Alan Cox 2012-08-21 11:50 ` Alan Cox 2012-08-21 11:54 ` Felipe Balbi 2012-08-21 11:54 ` Felipe Balbi 2012-08-21 11:54 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 03/13] serial: omap: define helpers for pdata function pointers Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 04/13] serial: omap: don't access the platform_device Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 05/13] serial: omap: drop DMA support Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:44 ` Shilimkar, Santosh 2012-08-21 9:44 ` Shilimkar, Santosh 2012-08-21 9:44 ` Shilimkar, Santosh 2012-08-21 10:20 ` Felipe Balbi 2012-08-21 10:20 ` Felipe Balbi 2012-08-21 10:20 ` Felipe Balbi 2012-08-21 10:35 ` Shilimkar, Santosh 2012-08-21 10:35 ` Shilimkar, Santosh 2012-08-21 10:35 ` Shilimkar, Santosh 2012-08-21 10:34 ` Felipe Balbi 2012-08-21 10:34 ` Felipe Balbi 2012-08-21 10:34 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 06/13] serial: add OMAP-specific defines Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 07/13] serial: omap: simplify IRQ handling Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 08/13] serial: omap: refactor receive_chars() into rdi/rlsi handlers Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 09/13] serial: omap: move THRE check to transmit_chars() Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 10/13] serial: omap: stick to put_autosuspend Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 10:42 ` Shilimkar, Santosh 2012-08-21 10:42 ` Shilimkar, Santosh 2012-08-21 10:42 ` Shilimkar, Santosh 2012-08-21 10:57 ` Felipe Balbi 2012-08-21 10:57 ` Felipe Balbi 2012-08-21 10:57 ` Felipe Balbi 2012-08-21 11:05 ` Shilimkar, Santosh 2012-08-21 11:05 ` Shilimkar, Santosh 2012-08-21 11:05 ` Shilimkar, Santosh 2012-08-21 11:02 ` Felipe Balbi 2012-08-21 11:02 ` Felipe Balbi 2012-08-21 11:02 ` Felipe Balbi 2012-08-21 11:09 ` Felipe Balbi 2012-08-21 11:09 ` Felipe Balbi 2012-08-21 11:09 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 11/13] serial: omap: set dev->drvdata before enabling pm_runtime Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 12/13] serial: omap: drop unnecessary check from remove Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` [RFC/PATCH 13/13] serial: omap: make sure to suspend device before remove Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 9:15 ` Felipe Balbi 2012-08-21 10:43 ` [RFC/PATCH 00/13] OMAP UART patches Shilimkar, Santosh 2012-08-21 10:43 ` Shilimkar, Santosh 2012-08-21 10:43 ` Shilimkar, Santosh 2012-08-21 12:15 ` Felipe Balbi [this message] 2012-08-21 12:15 ` [PATCH v2 00/13] OMAP Serial patches Felipe Balbi 2012-08-21 12:15 ` Felipe Balbi 2012-08-21 12:15 ` [PATCH v2 01/13] serial: omap: define and use to_uart_omap_port() Felipe Balbi 2012-08-21 12:15 ` Felipe Balbi 2012-08-21 12:15 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 02/13] serial: omap: define helpers for pdata function pointers Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 03/13] serial: omap: don't access the platform_device Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 04/13] serial: omap: drop DMA support Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 05/13] serial: add OMAP-specific defines Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 06/13] serial: omap: simplify IRQ handling Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 07/13] serial: omap: refactor receive_chars() into rdi/rlsi handlers Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 08/13] serial: omap: move THRE check to transmit_chars() Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 09/13] serial: omap: stick to put_autosuspend Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 10/13] serial: omap: set dev->drvdata before enabling pm_runtime Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 11/13] serial: omap: drop unnecessary check from remove Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 12/13] serial: omap: make sure to suspend device before remove Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` [PATCH v2 13/13] serial: omap: don't save IRQ flags on hardirq Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 12:16 ` Felipe Balbi 2012-08-21 13:01 ` [PATCH v2 00/13] OMAP Serial patches Felipe Balbi 2012-08-21 13:01 ` Felipe Balbi 2012-08-21 13:01 ` Felipe Balbi 2012-08-21 15:07 ` Felipe Balbi 2012-08-21 15:07 ` Felipe Balbi 2012-08-21 15:07 ` Felipe Balbi 2012-08-23 6:26 ` Felipe Balbi 2012-08-23 6:26 ` Felipe Balbi 2012-08-23 6:26 ` Felipe Balbi
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1345551371-18862-1-git-send-email-balbi@ti.com \ --to=balbi@ti.com \ --cc=alan@linux.intel.com \ --cc=khilman@ti.com \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-omap@vger.kernel.org \ --cc=linux-serial@vger.kernel.org \ --cc=santosh.shilimkar@ti.com \ --cc=shubhrajyoti@ti.com \ --cc=tony@atomide.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.