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Sat, 22 Jun 2019 21:55:42 +0100 From: Przemyslaw Gaj To: Subject: [PATCH v5 1/7] i3c: add addr and lvr to i2c_dev_desc structure Date: Sat, 22 Jun 2019 21:54:59 +0100 Message-ID: <1561236905-8901-2-git-send-email-pgaj@cadence.com> X-Mailer: git-send-email 2.4.5 In-Reply-To: <1561236905-8901-1-git-send-email-pgaj@cadence.com> References: <1561236905-8901-1-git-send-email-pgaj@cadence.com> MIME-Version: 1.0 X-OrganizationHeadersPreserved: maileu3.global.cadence.com X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:158.140.1.28; IPV:CAL; SCL:-1; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(39860400002)(396003)(136003)(376002)(346002)(2980300002)(199004)(36092001)(189003)(7636002)(186003)(4326008)(87636003)(446003)(5024004)(11346002)(47776003)(6916009)(26005)(50226002)(14444005)(2616005)(76176011)(86362001)(426003)(76130400001)(2351001)(246002)(5660300002)(50466002)(476003)(336012)(8676002)(42186006)(478600001)(16586007)(70206006)(107886003)(48376002)(126002)(8936002)(356004)(36756003)(2906002)(6666004)(316002)(70586007)(54906003)(305945005)(51416003)(486006)(26826003); 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org I need to store address and lvr value for I2C devices without static definition in DT. This allows secondary master to transmit DEFSLVS command properly. Main changes between v4 and v5: - Change in defslvs to use addr and lvr from i2c_dev_desc structure - Change in CDNS and DW drivers to use addr and lvr from i2c_dev_desc structure Signed-off-by: Przemyslaw Gaj --- drivers/i3c/master.c | 10 ++++++---- drivers/i3c/master/dw-i3c-master.c | 4 ++-- drivers/i3c/master/i3c-master-cdns.c | 4 ++-- include/linux/i3c/master.h | 5 +++++ 4 files changed, 15 insertions(+), 8 deletions(-) diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index 2f9a54d..0f7c31e 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -620,6 +620,8 @@ i3c_master_alloc_i2c_dev(struct i3c_master_controller *master, dev->common.master = master; dev->boardinfo = boardinfo; + dev->addr = boardinfo->base.addr; + dev->lvr = boardinfo->lvr; return dev; } @@ -939,8 +941,8 @@ int i3c_master_defslvs_locked(struct i3c_master_controller *master) desc = defslvs->slaves; i3c_bus_for_each_i2cdev(bus, i2cdev) { - desc->lvr = i2cdev->boardinfo->lvr; - desc->static_addr = i2cdev->boardinfo->base.addr << 1; + desc->lvr = i2cdev->lvr; + desc->static_addr = i2cdev->addr << 1; desc++; } @@ -1607,8 +1609,8 @@ static void i3c_master_detach_free_devs(struct i3c_master_controller *master) common.node) { i3c_master_detach_i2c_dev(i2cdev); i3c_bus_set_addr_slot_status(&master->bus, - i2cdev->boardinfo->base.addr, - I3C_ADDR_SLOT_FREE); + i2cdev->addr, + I3C_ADDR_SLOT_FREE); i3c_master_free_i2c_dev(i2cdev); } } diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c index 9934a12..22ac305 100644 --- a/drivers/i3c/master/dw-i3c-master.c +++ b/drivers/i3c/master/dw-i3c-master.c @@ -1041,12 +1041,12 @@ static int dw_i3c_master_attach_i2c_dev(struct i2c_dev_desc *dev) return -ENOMEM; data->index = pos; - master->addrs[pos] = dev->boardinfo->base.addr; + master->addrs[pos] = dev->addr; master->free_pos &= ~BIT(pos); i2c_dev_set_master_data(dev, data); writel(DEV_ADDR_TABLE_LEGACY_I2C_DEV | - DEV_ADDR_TABLE_STATIC_ADDR(dev->boardinfo->base.addr), + DEV_ADDR_TABLE_STATIC_ADDR(dev->addr), master->regs + DEV_ADDR_TABLE_LOC(master->datstartaddr, data->index)); diff --git a/drivers/i3c/master/i3c-master-cdns.c b/drivers/i3c/master/i3c-master-cdns.c index 237f24a..5aee315 100644 --- a/drivers/i3c/master/i3c-master-cdns.c +++ b/drivers/i3c/master/i3c-master-cdns.c @@ -1005,9 +1005,9 @@ static int cdns_i3c_master_attach_i2c_dev(struct i2c_dev_desc *dev) master->free_rr_slots &= ~BIT(slot); i2c_dev_set_master_data(dev, data); - writel(prepare_rr0_dev_address(dev->boardinfo->base.addr), + writel(prepare_rr0_dev_address(dev->addr), master->regs + DEV_ID_RR0(data->id)); - writel(dev->boardinfo->lvr, master->regs + DEV_ID_RR2(data->id)); + writel(dev->lvr, master->regs + DEV_ID_RR2(data->id)); writel(readl(master->regs + DEVS_CTRL) | DEVS_CTRL_DEV_ACTIVE(data->id), master->regs + DEVS_CTRL); diff --git a/include/linux/i3c/master.h b/include/linux/i3c/master.h index d480ab7..42bb215 100644 --- a/include/linux/i3c/master.h +++ b/include/linux/i3c/master.h @@ -71,6 +71,9 @@ struct i2c_dev_boardinfo { * @common: common part of the I2C device descriptor * @boardinfo: pointer to the boardinfo attached to this I2C device * @dev: I2C device object registered to the I2C framework + * @addr: I2C device address + * @lvr: LVR (Legacy Virtual Register) needed by the I3C core to know about + * the I2C device limitations * * Each I2C device connected on the bus will have an i2c_dev_desc. * This object is created by the core and later attached to the controller @@ -84,6 +87,8 @@ struct i2c_dev_desc { struct i3c_i2c_dev_desc common; const struct i2c_dev_boardinfo *boardinfo; struct i2c_client *dev; + u16 addr; + u8 lvr; }; /** -- 2.4.5 _______________________________________________ linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c