Hi Leo and Jassi, On 26/02/2016 19:40, Jassi Brar wrote: > On Mon, Feb 15, 2016 at 7:20 PM, Leo Yan <leo.yan@xxxxxxxxxx> wrote: >> Hi6220 mailbox supports up to 32 channels. Each channel is unidirectional >> with a maximum message size of 8 words. I/O is performed using register >> access (there is no DMA) and the cell raises an interrupt when messages >> are received. >> >> This patch series is to implement Hi6220 mailbox driver. It registers >> two channels into framework for communication with MCU, one is tx channel >> and another is rx channel. Now mailbox driver is used to send message to >> MCU to control dynamic voltage and frequency scaling for CPU, GPU and DDR. >> >> Changes from v6: >> * Fix to use lowercase for hexadecimal value in DT binding document >> >> Changes from v5: >> * Refine to use mailbox three specifiers for client driver, so add xlate >> callback function in mailbox driver to support these specifiers >> * Refine document for property "hi6220,mbox-tx-noirq" >> >> Changes from v4: >> * According to Jassi's suggestion, using DT binding to register channels >> * Change to use operating-points-v2 to register operating points >> >> Changes from v3: >> * The patch series for enabling idle state for Hi6220 has reserved memory >> regions, so this series will not include it anymore >> * Refined mailbox driver according to Jassi's suggestion; >> Removed kfifo from mailbox driver; >> Removed spinlock for ipc registers accessing, due every channel has its >> own dedicated bit in ipc register and readl/writel will introduce memory >> barrier, so don't need spinlock to protect ipc registers accessing >> * After mailbox driver is ready, can use patch 4 to enable CPU's OPPs and >> stub clock driver; finally can enable CPUFreq driver for CPU frequency >> scaling >> >> Changes from v2: >> * Get rid of unused memory regions from memory node in DT, and don't use >> reserved-memory node according to Mark and Leif's suggestion; Haojian also >> has updated UEFI for efi memory info >> >> Changes from v1: >> * Correct lock usage for SMP scenario >> >> Changes from RFC: >> * According to Jassi's review, totally remove the abstract common driver >> layer and only commit driver dedicated for Hi6220 >> * According to Paul Bolle's review, fix typo issue for Kconfig and remove >> unnecessary dependency with OF and fix minor for mailbox driver >> * Refine a little for dts nodes >> >> >> Leo Yan (4): >> dt-bindings: mailbox: Document Hi6220 mailbox driver >> mailbox: Hi6220: add mailbox driver >> arm64: dts: add mailbox node for Hi6220 >> arm64: dts: add Hi6220's stub clock node >> >> .../bindings/mailbox/hisilicon,hi6220-mailbox.txt | 74 ++++ >> arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 64 ++++ >> drivers/mailbox/Kconfig | 8 + >> drivers/mailbox/Makefile | 2 + >> drivers/mailbox/hi6220-mailbox.c | 395 +++++++++++++++++++++ >> > Applied 1 & 2 to mailbox-for-next. Patch-3&4 should go via asoc tree. Applied 3 and 4 to the hisilicon soc tree. Thanks! Best Regards, Wei > > Thanks > > . > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
