Bugzilla: http://bugzilla.redhat.com/2184175
commit 2472934e36b51bbdf0a7cdd5e351910d9002c6ac
Author: Colin Ian King <colin.i.king@gmail.com>
Date: Thu Jun 23 19:00:54 2022 +0100
PM / devfreq: imx-bus: use NULL to pass a null pointer rather than zero
The 3rd argument to the function of_get_property is a pointer and it is
being passed using 0. Use NULL instead.
Cleans up sparse warning:
warning: Using plain integer as NULL pointer
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Steve Best <sbest@redhat.com>
Current driver actually does not support simple ondemand governor
as it's unable to provide device load information. So removing
the unnecessary callback to avoid confusing.
Right now the driver is using userspace governor by default.
polling_ms was also dropped as it's not needed for non-ondemand
governor.
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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>
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>
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>
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>
Steve Best
Dong Aisheng
Fabio Estevam
Gustavo A. R. Silva
Leonard Crestez