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linux/drivers/devfreq/imx-bus.c

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PM / devfreq: Add generic imx bus scaling driver Add initial support for dynamic frequency switching on pieces of the imx interconnect fabric. All this driver does is set a clk rate based on an opp table, it does not map register areas. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:07 +03:00
PM / devfreq: Explicitly include correct DT includes The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2023-07-14 11:44:25 -06:00
PM / devfreq: Add generic imx bus scaling driver Add initial support for dynamic frequency switching on pieces of the imx interconnect fabric. All this driver does is set a clk rate based on an opp table, it does not map register areas. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:07 +03:00
PM / devfreq: imx: Register interconnect device There is no single device which can represent the imx interconnect. Instead of adding a virtual one just make the main &noc act as the global interconnect provider. The imx interconnect provider driver will scale the NOC and DDRC based on bandwidth request. More scalable nodes can be added in the future, for example for audio/display/vpu/gpu NICs. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:08 +03:00
PM / devfreq: Add generic imx bus scaling driver Add initial support for dynamic frequency switching on pieces of the imx interconnect fabric. All this driver does is set a clk rate based on an opp table, it does not map register areas. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:07 +03:00
PM / devfreq: imx: Register interconnect device There is no single device which can represent the imx interconnect. Instead of adding a virtual one just make the main &noc act as the global interconnect provider. The imx interconnect provider driver will scale the NOC and DDRC based on bandwidth request. More scalable nodes can be added in the future, for example for audio/display/vpu/gpu NICs. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:08 +03:00
PM / devfreq: Add generic imx bus scaling driver Add initial support for dynamic frequency switching on pieces of the imx interconnect fabric. All this driver does is set a clk rate based on an opp table, it does not map register areas. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:07 +03:00
PM / devfreq: imx: Register interconnect device There is no single device which can represent the imx interconnect. Instead of adding a virtual one just make the main &noc act as the global interconnect provider. The imx interconnect provider driver will scale the NOC and DDRC based on bandwidth request. More scalable nodes can be added in the future, for example for audio/display/vpu/gpu NICs. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:08 +03:00
PM / devfreq: imx-bus: Use of_property_present() Use of_property_present() to test for property presence rather than of_get_property(). This is part of a larger effort to remove callers of of_get_property() and similar functions. of_get_property() leaks the DT property data pointer which is a problem for dynamically allocated nodes which may be freed. Link: https://lore.kernel.org/lkml/20240731191312.1710417-11-robh@kernel.org/ Acked-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2024-07-31 13:12:49 -06:00
PM / devfreq: imx: Register interconnect device There is no single device which can represent the imx interconnect. Instead of adding a virtual one just make the main &noc act as the global interconnect provider. The imx interconnect provider driver will scale the NOC and DDRC based on bandwidth request. More scalable nodes can be added in the future, for example for audio/display/vpu/gpu NICs. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:08 +03:00
PM / devfreq: imx-bus: Fix inconsistent IS_ERR and PTR_ERR Fix inconsistent IS_ERR and PTR_ERR in imx_bus_init_icc(). The proper pointer to be passed as argument to PTR_ERR() is priv->icc_pdev. This bug was detected with the help of Coccinelle. Fixes: 16c1d2f1b0bd ("PM / devfreq: imx: Register interconnect device") Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> [cw00.choi: Edit the patch title from 'imx' to 'imx-bus'] Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-05-07 08:12:45 -05:00
PM / devfreq: imx: Register interconnect device There is no single device which can represent the imx interconnect. Instead of adding a virtual one just make the main &noc act as the global interconnect provider. The imx interconnect provider driver will scale the NOC and DDRC based on bandwidth request. More scalable nodes can be added in the future, for example for audio/display/vpu/gpu NICs. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:08 +03:00
PM / devfreq: Add generic imx bus scaling driver Add initial support for dynamic frequency switching on pieces of the imx interconnect fabric. All this driver does is set a clk rate based on an opp table, it does not map register areas. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:07 +03:00
PM / devfreq: imx: Register interconnect device There is no single device which can represent the imx interconnect. Instead of adding a virtual one just make the main &noc act as the global interconnect provider. The imx interconnect provider driver will scale the NOC and DDRC based on bandwidth request. More scalable nodes can be added in the future, for example for audio/display/vpu/gpu NICs. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:08 +03:00
PM / devfreq: Add generic imx bus scaling driver Add initial support for dynamic frequency switching on pieces of the imx interconnect fabric. All this driver does is set a clk rate based on an opp table, it does not map register areas. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:07 +03:00
PM / devfreq: imx: Register interconnect device There is no single device which can represent the imx interconnect. Instead of adding a virtual one just make the main &noc act as the global interconnect provider. The imx interconnect provider driver will scale the NOC and DDRC based on bandwidth request. More scalable nodes can be added in the future, for example for audio/display/vpu/gpu NICs. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:08 +03:00
PM / devfreq: imx: Register i.MX8MP interconnect device Same to i.MX8MM/N/Q, register i.MX8MP interconnect device to make i.MX8MP Interconnect driver work. Signed-off-by: Peng Fan <peng.fan@nxp.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Link: https://lore.kernel.org/r/20220703091132.1412063-10-peng.fan@oss.nxp.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2022-07-03 17:11:31 +08:00
PM / devfreq: Add generic imx bus scaling driver Add initial support for dynamic frequency switching on pieces of the imx interconnect fabric. All this driver does is set a clk rate based on an opp table, it does not map register areas. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:07 +03:00
PM / devfreq: imx-bus: Remove unneeded of_match_ptr() i.MX is a DT-only platform, so of_match_ptr() can be safely removed. Remove the unneeded of_match_ptr(). Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2021-03-29 09:24:24 -03:00
PM / devfreq: Add generic imx bus scaling driver Add initial support for dynamic frequency switching on pieces of the imx interconnect fabric. All this driver does is set a clk rate based on an opp table, it does not map register areas. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-06 15:03:07 +03:00