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2022-08-18interconnect: imx: Make imx_icc_unregister() return voidUwe Kleine-König
The function imx_icc_unregister() returns zero unconditionally. Make it return void. This is a preparation for making platform remove callbacks return void. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220718121409.171773-9-u.kleine-koenig@pengutronix.de Signed-off-by: Georgi Djakov <djakov@kernel.org>
2022-08-16interconnect: imx: Ignore return value of icc_provider_del() in .remove()Uwe Kleine-König
icc_provider_del() already emits an error message on failure. In this case letting .remove() return the corresponding error code results in another error message and the device is removed anyhow. (See platform_remove().) So ignore the return value of icc_provider_del() and return 0 unconditionally. This is a preparation for making platform remove callbacks return void. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220718121409.171773-2-u.kleine-koenig@pengutronix.de Signed-off-by: Georgi Djakov <djakov@kernel.org>
2022-07-15interconnect: imx: Add platform driver for imx8mpPeng Fan
Add a platform driver for the i.MX8MP SoC describing bus topology, based on internal documentation. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20220703091132.1412063-9-peng.fan@oss.nxp.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2022-07-15interconnect: imx: configure NoC mode/prioriry/ext_controlPeng Fan
Introduce imx_icc_noc_setting structure to describe a master port setting Pass imx_icc_noc_setting as a parameter from specific driver Set priority level, mode, ext control in imx_icc_node_set Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20220703091132.1412063-8-peng.fan@oss.nxp.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2022-07-15interconnect: imx: introduce imx_icc_providerPeng Fan
Introduce imx_icc_provider as a wrapper of icc_provider to add i.MX specific information. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20220703091132.1412063-7-peng.fan@oss.nxp.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2022-07-15interconnect: imx: set src nodePeng Fan
When set QoS for a icc path, only set dst icc node is not enough, also need to set src icc node. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20220703091132.1412063-6-peng.fan@oss.nxp.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2022-07-15interconnect: imx: fix max_node_idPeng Fan
max_node_id not equal to the ARRAY_SIZE of node array, need increase 1, otherwise xlate will fail for the last entry. And rename max_node_id to num_nodes to reflect the reality. Fixes: f0d8048525d7d ("interconnect: Add imx core driver") Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20220703091132.1412063-5-peng.fan@oss.nxp.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2022-01-23interconnect: imx: Add imx_icc_get_bw function to set initial avg and peakAbel Vesa
Set the initial avg and peak to 0 in order to avoid setting them to INT_MAX by the interconnect core. Signed-off-by: Abel Vesa <abel.vesa@nxp.com> Link: https://lore.kernel.org/r/20220106170501.3513423-1-abel.vesa@nxp.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2020-12-28interconnect: imx8mq: Use icc_sync_stateMartin Kepplinger
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: 7d3b0b0d8184 ("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>
2020-12-28interconnect: imx: Remove a useless testChristophe JAILLET
'dn' can't be NULL here, it is tested just the line above. Remove this useless test. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20201206121322.29434-1-christophe.jaillet@wanadoo.fr Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-12-28interconnect: imx: Add a missing of_node_put after of_device_is_availableChristophe JAILLET
Add an 'of_node_put()' call when a tested device node is not available. Fixes: f0d8048525d7 ("interconnect: Add imx core driver") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20201206121304.29381-1-christophe.jaillet@wanadoo.fr Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-21interconnect: imx: simplify the return expression of imx_icc_unregisterLiu Shixin
Simplify the return expression. Signed-off-by: Liu Shixin <liushixin2@huawei.com> Link: https://lore.kernel.org/r/20200921082437.2591461-1-liushixin2@huawei.com Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-18interconnect: imx: Simplify with dev_err_probe()Krzysztof Kozlowski
Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and the error value gets printed. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200902172433.1138-2-krzk@kernel.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-05-10interconnect: imx: Fix return value check in imx_icc_node_init_qos()Wei Yongjun
In case of error, the function of_parse_phandle() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Fixes: f0d8048525d7 ("interconnect: Add imx core driver") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Link: https://lore.kernel.org/r/20200509030214.14435-1-weiyongjun1@huawei.com Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-04-28interconnect: imx: Add platform driver for imx8mnLeonard Crestez
Add a platform driver for the i.MX8MN SoC describing bus topology, based on internal documentation. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Link: https://lore.kernel.org/r/338a5409ce88811ba6c940ba06441db3faa8c187.1586174566.git.leonard.crestez@nxp.com Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-04-28interconnect: imx: Add platform driver for imx8mqLeonard Crestez
Add a platform driver for the i.MX8MQ SoC describing bus topology, based on internal documentation. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Link: https://lore.kernel.org/r/864310d1f2599c3bd621e70b77028a6e89f6410e.1586174566.git.leonard.crestez@nxp.com Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-04-28interconnect: imx: Add platform driver for imx8mmLeonard Crestez
Add a platform driver for the i.MX8MM SoC describing bus topology. Bandwidth adjustments is currently only supported on the DDRC and main NOC. Scaling for the vpu/gpu/display NICs could be added in the future. Signed-off-by: Alexandre Bailon <abailon@baylibre.com> Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Link: https://lore.kernel.org/r/b14eef179dbd837a486619724b8033490f49db72.1586174566.git.leonard.crestez@nxp.com Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-04-28interconnect: Add imx core driverLeonard Crestez
This adds support for i.MX SoC family to interconnect framework. Platform drivers can describe the interconnect graph and several adjustment knobs where icc node bandwidth is converted to a DEV_PM_QOS_MIN_FREQUENCY request. The interconnect provider is probed through the main NOC device and other adjustable nodes on the same graph are found from a fsl,scalable-nodes phandle array property. Signed-off-by: Alexandre Bailon <abailon@baylibre.com> Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Link: https://lore.kernel.org/r/35920e673df6c04cbbb7d877a7d4ba25fd91a784.1586174566.git.leonard.crestez@nxp.com Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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