67288f74d4
Add the icc_sync_state callback to notify the framework when consumers
are probed and the bandwidth doesn't have to be kept at maximum anymore.
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Suggested-by: Georgi Djakov <georgi.djakov@linaro.org>
Fixes: 7d3b0b0d81 ("interconnect: qcom: Use icc_sync_state")
Link: https://lore.kernel.org/r/20201210100906.18205-6-martin.kepplinger@puri.sm
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Interconnect framework driver for i.MX8MQ SoC
|
|
*
|
|
* Copyright (c) 2019-2020, NXP
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/interconnect-provider.h>
|
|
#include <dt-bindings/interconnect/imx8mq.h>
|
|
|
|
#include "imx.h"
|
|
|
|
static const struct imx_icc_node_adj_desc imx8mq_dram_adj = {
|
|
.bw_mul = 1,
|
|
.bw_div = 4,
|
|
.phandle_name = "fsl,ddrc",
|
|
};
|
|
|
|
static const struct imx_icc_node_adj_desc imx8mq_noc_adj = {
|
|
.bw_mul = 1,
|
|
.bw_div = 4,
|
|
.main_noc = true,
|
|
};
|
|
|
|
/*
|
|
* Describe bus masters, slaves and connections between them
|
|
*
|
|
* This is a simplified subset of the bus diagram, there are several other
|
|
* PL301 nics which are skipped/merged into PL301_MAIN
|
|
*/
|
|
static struct imx_icc_node_desc nodes[] = {
|
|
DEFINE_BUS_INTERCONNECT("NOC", IMX8MQ_ICN_NOC, &imx8mq_noc_adj,
|
|
IMX8MQ_ICS_DRAM, IMX8MQ_ICN_MAIN),
|
|
|
|
DEFINE_BUS_SLAVE("DRAM", IMX8MQ_ICS_DRAM, &imx8mq_dram_adj),
|
|
DEFINE_BUS_SLAVE("OCRAM", IMX8MQ_ICS_OCRAM, NULL),
|
|
DEFINE_BUS_MASTER("A53", IMX8MQ_ICM_A53, IMX8MQ_ICN_NOC),
|
|
|
|
/* VPUMIX */
|
|
DEFINE_BUS_MASTER("VPU", IMX8MQ_ICM_VPU, IMX8MQ_ICN_VIDEO),
|
|
DEFINE_BUS_INTERCONNECT("PL301_VIDEO", IMX8MQ_ICN_VIDEO, NULL, IMX8MQ_ICN_NOC),
|
|
|
|
/* GPUMIX */
|
|
DEFINE_BUS_MASTER("GPU", IMX8MQ_ICM_GPU, IMX8MQ_ICN_GPU),
|
|
DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MQ_ICN_GPU, NULL, IMX8MQ_ICN_NOC),
|
|
|
|
/* DISPMIX (only for DCSS) */
|
|
DEFINE_BUS_MASTER("DC", IMX8MQ_ICM_DCSS, IMX8MQ_ICN_DCSS),
|
|
DEFINE_BUS_INTERCONNECT("PL301_DC", IMX8MQ_ICN_DCSS, NULL, IMX8MQ_ICN_NOC),
|
|
|
|
/* USBMIX */
|
|
DEFINE_BUS_MASTER("USB1", IMX8MQ_ICM_USB1, IMX8MQ_ICN_USB),
|
|
DEFINE_BUS_MASTER("USB2", IMX8MQ_ICM_USB2, IMX8MQ_ICN_USB),
|
|
DEFINE_BUS_INTERCONNECT("PL301_USB", IMX8MQ_ICN_USB, NULL, IMX8MQ_ICN_NOC),
|
|
|
|
/* PL301_DISPLAY (IPs other than DCSS, inside SUPERMIX) */
|
|
DEFINE_BUS_MASTER("CSI1", IMX8MQ_ICM_CSI1, IMX8MQ_ICN_DISPLAY),
|
|
DEFINE_BUS_MASTER("CSI2", IMX8MQ_ICM_CSI2, IMX8MQ_ICN_DISPLAY),
|
|
DEFINE_BUS_MASTER("LCDIF", IMX8MQ_ICM_LCDIF, IMX8MQ_ICN_DISPLAY),
|
|
DEFINE_BUS_INTERCONNECT("PL301_DISPLAY", IMX8MQ_ICN_DISPLAY, NULL, IMX8MQ_ICN_MAIN),
|
|
|
|
/* AUDIO */
|
|
DEFINE_BUS_MASTER("SDMA2", IMX8MQ_ICM_SDMA2, IMX8MQ_ICN_AUDIO),
|
|
DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MQ_ICN_AUDIO, NULL, IMX8MQ_ICN_DISPLAY),
|
|
|
|
/* ENET */
|
|
DEFINE_BUS_MASTER("ENET", IMX8MQ_ICM_ENET, IMX8MQ_ICN_ENET),
|
|
DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MQ_ICN_ENET, NULL, IMX8MQ_ICN_MAIN),
|
|
|
|
/* OTHER */
|
|
DEFINE_BUS_MASTER("SDMA1", IMX8MQ_ICM_SDMA1, IMX8MQ_ICN_MAIN),
|
|
DEFINE_BUS_MASTER("NAND", IMX8MQ_ICM_NAND, IMX8MQ_ICN_MAIN),
|
|
DEFINE_BUS_MASTER("USDHC1", IMX8MQ_ICM_USDHC1, IMX8MQ_ICN_MAIN),
|
|
DEFINE_BUS_MASTER("USDHC2", IMX8MQ_ICM_USDHC2, IMX8MQ_ICN_MAIN),
|
|
DEFINE_BUS_MASTER("PCIE1", IMX8MQ_ICM_PCIE1, IMX8MQ_ICN_MAIN),
|
|
DEFINE_BUS_MASTER("PCIE2", IMX8MQ_ICM_PCIE2, IMX8MQ_ICN_MAIN),
|
|
DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MQ_ICN_MAIN, NULL,
|
|
IMX8MQ_ICN_NOC, IMX8MQ_ICS_OCRAM),
|
|
};
|
|
|
|
static int imx8mq_icc_probe(struct platform_device *pdev)
|
|
{
|
|
return imx_icc_register(pdev, nodes, ARRAY_SIZE(nodes));
|
|
}
|
|
|
|
static int imx8mq_icc_remove(struct platform_device *pdev)
|
|
{
|
|
return imx_icc_unregister(pdev);
|
|
}
|
|
|
|
static struct platform_driver imx8mq_icc_driver = {
|
|
.probe = imx8mq_icc_probe,
|
|
.remove = imx8mq_icc_remove,
|
|
.driver = {
|
|
.name = "imx8mq-interconnect",
|
|
.sync_state = icc_sync_state,
|
|
},
|
|
};
|
|
|
|
module_platform_driver(imx8mq_icc_driver);
|
|
MODULE_ALIAS("platform:imx8mq-interconnect");
|
|
MODULE_AUTHOR("Leonard Crestez <leonard.crestez@nxp.com>");
|
|
MODULE_LICENSE("GPL v2");
|