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Misc driver changes only :
- TI-MsgMgr: Fix print format for a printk - TI-MSgMgr: SPDX license switch for the driver - QCOM-IPC: Convert driver to use regmap - QCOM-IPC: Spawn sibling clock device from mailbox driver -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJadq9yAAoJEH/ZZH/HmD+VupMP/2WiPSo8mP4Pdb5TvlHDZQA2 e99YCwxGgvwIs5i9TmTNz4jyrXZa36S+m/LYvuBrKncjPl0BHQVpKa/vFM4NJOw5 evlMgB+c8wdAbIQtP3w3f72TClpIutKdsWA+wTxH4221TLFRmpptj/tY5JHEezFw KrIKhesYUTjulNTrA+rGe3e/xso8f2P8OfQAtK8k+nVrqp6Wnu/IeXftLkMuRAR8 tSzz2CTIMC1iBFGZn6TRXLn1qe6rnO8uZrN4DmJGMe/dudQ8hjRzb2zx9bDOhtG3 uLcD2ETsZNS0g6rJP0iltIz3FdZEqS5gugOIIQ+b6opZ2rNkSWlkQLCTnwqLWZ3w eLqBbRumb0+kDfdTheBijUjd+NJupR8/zEkSxWx2VUwP4zRzrgvmdqyfghAQD2jv lLjQHmG6JBO/NTwgQ9WgSO7Noem7tfeIu+jdS4robihk7x2/TrdRFvfTayndWy9Q 6mRAKgk3ElL83VeyfVZF9jSOqu/SwemUYw4+wSnAS1u+SL6Am/U5HXTggLclqM9o ETkR+5aL6RYA1ik/vRIhV9TvoT7Ew4GKRI1etBvh0gkSlJ9PgRUNL7IS+yUdBMYX btD79ZIM6VjGWxVx80aDhTfYndcDPokvBYxD39vezy5w9SqEZzMSm1oO6zkO4X9p ry3ZToIwhuXKBtE8hkIX =SEiX -----END PGP SIGNATURE----- Merge tag 'mailbox-v4.16' of git://git.linaro.org/landing-teams/working/fujitsu/integration Pull mailbox updates from Jassi Brar: "Misc driver changes only: - TI-MsgMgr: Fix print format for a printk - TI-MSgMgr: SPDX license switch for the driver - QCOM-IPC: Convert driver to use regmap - QCOM-IPC: Spawn sibling clock device from mailbox driver" * tag 'mailbox-v4.16' of git://git.linaro.org/landing-teams/working/fujitsu/integration: dt-bindings: mailbox: qcom: Document the APCS clock binding mailbox: qcom: Create APCS child device for clock controller mailbox: qcom: Convert APCS IPC driver to use regmap mailbox: ti-msgmgr: Use %zu for size_t print format mailbox: ti-msgmgr: Switch to SPDX Licensing
This commit is contained in:
Linus Torvalds
commit
8ac4840a3c
@ -15,12 +15,21 @@ platforms.
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Usage: required
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Value type: <prop-encoded-array>
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Definition: must specify the base address and size of the global block
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- clocks:
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Usage: required if #clocks-cells property is present
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Value type: <phandle>
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Definition: phandle to the input PLL, which feeds the APCS mux/divider
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- #mbox-cells:
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Usage: required
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Value type: <u32>
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Definition: as described in mailbox.txt, must be 1
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- #clock-cells:
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Usage: optional
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Value type: <u32>
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Definition: as described in clock.txt, must be 0
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= EXAMPLE
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The following example describes the APCS HMSS found in MSM8996 and part of the
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@ -44,3 +53,12 @@ GLINK RPM referencing the "rpm_hlos" doorbell therein.
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mbox-names = "rpm_hlos";
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};
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Below is another example of the APCS binding on MSM8916 platforms:
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apcs: mailbox@b011000 {
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compatible = "qcom,msm8916-apcs-kpss-global";
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reg = <0xb011000 0x1000>;
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#mbox-cells = <1>;
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clocks = <&a53pll>;
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#clock-cells = <0>;
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};
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@ -18,6 +18,7 @@
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#include <linux/mailbox_controller.h>
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#define QCOM_APCS_IPC_BITS 32
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@ -26,8 +27,17 @@ struct qcom_apcs_ipc {
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struct mbox_controller mbox;
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struct mbox_chan mbox_chans[QCOM_APCS_IPC_BITS];
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void __iomem *reg;
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struct regmap *regmap;
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unsigned long offset;
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struct platform_device *clk;
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};
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static const struct regmap_config apcs_regmap_config = {
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.reg_bits = 32,
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.reg_stride = 4,
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.val_bits = 32,
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.max_register = 0x1000,
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.fast_io = true,
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};
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static int qcom_apcs_ipc_send_data(struct mbox_chan *chan, void *data)
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@ -36,9 +46,7 @@ static int qcom_apcs_ipc_send_data(struct mbox_chan *chan, void *data)
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struct qcom_apcs_ipc, mbox);
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unsigned long idx = (unsigned long)chan->con_priv;
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writel(BIT(idx), apcs->reg);
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return 0;
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return regmap_write(apcs->regmap, apcs->offset, BIT(idx));
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}
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static const struct mbox_chan_ops qcom_apcs_ipc_ops = {
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@ -47,7 +55,9 @@ static const struct mbox_chan_ops qcom_apcs_ipc_ops = {
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static int qcom_apcs_ipc_probe(struct platform_device *pdev)
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{
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struct device_node *np = pdev->dev.of_node;
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struct qcom_apcs_ipc *apcs;
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struct regmap *regmap;
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struct resource *res;
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unsigned long offset;
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void __iomem *base;
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@ -63,9 +73,14 @@ static int qcom_apcs_ipc_probe(struct platform_device *pdev)
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if (IS_ERR(base))
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return PTR_ERR(base);
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regmap = devm_regmap_init_mmio(&pdev->dev, base, &apcs_regmap_config);
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if (IS_ERR(regmap))
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return PTR_ERR(regmap);
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offset = (unsigned long)of_device_get_match_data(&pdev->dev);
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apcs->reg = base + offset;
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apcs->regmap = regmap;
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apcs->offset = offset;
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/* Initialize channel identifiers */
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for (i = 0; i < ARRAY_SIZE(apcs->mbox_chans); i++)
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@ -82,6 +97,14 @@ static int qcom_apcs_ipc_probe(struct platform_device *pdev)
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return ret;
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}
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if (of_device_is_compatible(np, "qcom,msm8916-apcs-kpss-global")) {
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apcs->clk = platform_device_register_data(&pdev->dev,
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"qcom-apcs-msm8916-clk",
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-1, NULL, 0);
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if (IS_ERR(apcs->clk))
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dev_err(&pdev->dev, "failed to register APCS clk\n");
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}
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platform_set_drvdata(pdev, apcs);
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return 0;
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@ -90,8 +113,10 @@ static int qcom_apcs_ipc_probe(struct platform_device *pdev)
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static int qcom_apcs_ipc_remove(struct platform_device *pdev)
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{
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struct qcom_apcs_ipc *apcs = platform_get_drvdata(pdev);
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struct platform_device *clk = apcs->clk;
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mbox_controller_unregister(&apcs->mbox);
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platform_device_unregister(clk);
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return 0;
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}
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@ -1,17 +1,9 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Texas Instruments' Message Manager Driver
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*
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* Copyright (C) 2015-2016 Texas Instruments Incorporated - http://www.ti.com/
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* Copyright (C) 2015-2017 Texas Instruments Incorporated - http://www.ti.com/
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* Nishanth Menon
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#define pr_fmt(fmt) "%s: " fmt, __func__
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@ -291,7 +283,7 @@ static int ti_msgmgr_send_data(struct mbox_chan *chan, void *data)
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desc = inst->desc;
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if (desc->max_message_size < message->len) {
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dev_err(dev, "Queue %s message length %d > max %d\n",
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dev_err(dev, "Queue %s message length %zu > max %d\n",
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qinst->name, message->len, desc->max_message_size);
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return -EINVAL;
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}
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