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* interconnect: imx8mq: Use icc_sync_stateMartin Kepplinger2020-12-281-0/+2
| | | | | | | | | | | 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>
* interconnect: imx: Remove a useless testChristophe JAILLET2020-12-281-1/+1
| | | | | | | | | '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>
* interconnect: imx: Add a missing of_node_put after of_device_is_availableChristophe JAILLET2020-12-281-0/+1
| | | | | | | | | 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>
* interconnect: imx: simplify the return expression of imx_icc_unregisterLiu Shixin2020-09-211-6/+1
| | | | | | | | 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>
* interconnect: imx: Simplify with dev_err_probe()Krzysztof Kozlowski2020-09-181-4/+2
| | | | | | | | | 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>
* interconnect: imx: Fix return value check in imx_icc_node_init_qos()Wei Yongjun2020-05-101-4/+4
| | | | | | | | | | | | | 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>
* interconnect: imx: Add platform driver for imx8mnLeonard Crestez2020-04-283-0/+100
| | | | | | | | | 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>
* interconnect: imx: Add platform driver for imx8mqLeonard Crestez2020-04-283-0/+109
| | | | | | | | | | 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>
* interconnect: imx: Add platform driver for imx8mmLeonard Crestez2020-04-283-0/+111
| | | | | | | | | | | | 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>
* interconnect: Add imx core driverLeonard Crestez2020-04-284-0/+353
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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