Converting uart driver to adapt to pm runtime api's. Code re-org + cleanup. Moving some functionality from serial.c to omap-serial.c Changes involves: ================ 1.) Cleaning up certain uart calls from sram_idle func. 2.) Removed all types of uart clock handling code from serial.c 3.) Using hwmod_mux api enable wakeup capability for uart pad during hwmod_idle state i.e., when uart clocks are disabled we can enable io-pad wakeup capability for uart if mux_data is available for given uart. Also during during resume from idle call to uart we need to enable clocks back conditionally and this can be done only when io-pad wakeup event bit is set for uart_rx pad. So we need a hwmod api which can probe the uart pad and let us know whether a uart wakeup happened. So omap_hmwod_pad_wakeup_status api is added to meet this requirement. 3.) Adapted omap-serial driver to use runtime api's. 4.) Modify serial_init calls to accept certain uart parameters from board file. 5.) using resume_call to enable uart port back untill we have irq_chaining available. Patch series is based on 3.0-rc2. Hosted at: https://gitorious.org/runtime_3-0/runtime_3-0/commits/master Dependency Patches: ---------- This patch series depends on patch [1], [2] posted earlier. 3.0-rc2 needs [3] patch for core to hit low power states. [1] http://www.spinics.net/lists/arm-kernel/msg124495.html [2] http://www.spinics.net/lists/arm-kernel/msg124493.html [3] http://git.kernel.org/?p=linux/kernel/git/khilman/linux-omap-pm.git; a=commit;h=345f79b3de7f6d651e4dba794af7c7303bdfd649 Testing updates: ---------------- 3430SDP: retention, off_mode, system_wide suspend is tested. (earlyprintk & no_console_suspend checked) OMAP3630 - Zoom3: pm-retention checked, off mode for per domain checked. [uart3/uart4 in per domain on omap3630]. [ZOOM3 tested with uart3 as console uart and pm-ret checked] OMAP4430-SDP/PANDA: Boot tested. OMAP2420/2430SDP: Boot tested. ------------- Govindraj.R (11): OMAP2+: UART: Remove certain uart calls from sram_idle OMAP2+: UART: Remove uart clock handling code from serial.c OMAP2+: Serial: Add default mux for all uarts. Serial: OMAP: Add runtime pm support for omap-serial driver OMAP: Serial: Hold console lock for console usage. Serial: OMAP2+: Move erratum handling from serial.c OMAP: Serial: Allow UART parameters to be configured from board file. OMAP3: Serial: Remove uart pads from 3430 board file. OMAP: Serial: Use resume call from prcm to enable uart OMAP2: Serial: Add has_async_wake flag. OMAP4: Serial: Set TX_FIFO_THRESHOLD if uart in dma mode for es2.0 Jon Hunter (1): Serial: OMAP2+: Make the RX_TIMEOUT for DMA configurable for each UART arch/arm/mach-omap2/board-3430sdp.c | 100 +--- arch/arm/mach-omap2/board-4430sdp.c | 8 +- arch/arm/mach-omap2/board-n8x0.c | 6 +- arch/arm/mach-omap2/board-omap4panda.c | 8 +- arch/arm/mach-omap2/pm24xx.c | 19 +- arch/arm/mach-omap2/pm34xx.c | 26 +- arch/arm/mach-omap2/serial.c | 929 +++++++------------------ arch/arm/plat-omap/include/plat/omap-serial.h | 49 ++- arch/arm/plat-omap/include/plat/serial.h | 12 +- drivers/tty/serial/omap-serial.c | 336 ++++++++- 10 files changed, 620 insertions(+), 873 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
