OpenCloudOS-Kernel/drivers/soc/imx
Leonard Crestez 5507ec5126 soc: imx: gpc: Disable 6sl display power gating for ERR006287
The imx6sl chip errata document describes ERR006287 like this:

> Upon resuming from power gating, the modules in the display power domain
(eLCDIF, EPDC, PXP and SPDC) might fail to perform register reads
correctly.

> When the modules listed above are used, do not use power gating on the
display power domain.

Link: https://www.nxp.com/docs/en/errata/IMX6SLCE.pdf#page=62

Handle this in the safest possible way by keeping the DISP domain
always-on.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-07-11 21:18:24 +08:00
..
Kconfig soc: imx: add PM dependency for IMX7_PM_DOMAINS 2017-05-15 09:33:22 +08:00
Makefile soc: imx: gpc: build gpc only if hardware has gpc 2017-05-15 10:22:25 +08:00
gpc.c soc: imx: gpc: Disable 6sl display power gating for ERR006287 2018-07-11 21:18:24 +08:00
gpcv2.c soc: imx: gpcv2: Do not pass static memory as platform data 2018-04-23 17:03:02 +08:00