d25fd6eb | 14-Aug-2024 |
Peng Fan <peng.fan@nxp.com> |
pmdomain: imx: wait SSAR when i.MX93 power domain on
commit 52dd070c62e4ae2b5e7411b920e3f7a64235ecfb upstream.
With "quiet" set in bootargs, there is power domain failure: "imx93_power_domain 44462
pmdomain: imx: wait SSAR when i.MX93 power domain on
commit 52dd070c62e4ae2b5e7411b920e3f7a64235ecfb upstream.
With "quiet" set in bootargs, there is power domain failure: "imx93_power_domain 44462400.power-domain: pd_off timeout: name: 44462400.power-domain, stat: 4"
The current power on opertation takes ISO state as power on finished flag, but it is wrong. Before powering on operation really finishes, powering off comes and powering off will never finish because the last powering on still not finishes, so the following powering off actually not trigger hardware state machine to run. SSAR is the last step when powering on a domain, so need to wait SSAR done when powering on.
Since EdgeLock Enclave(ELE) handshake is involved in the flow, enlarge the waiting time to 10ms for both on and off to avoid timeout.
Cc: stable@vger.kernel.org Fixes: 0a0f7cc25d4a ("soc: imx: add i.MX93 SRC power domain driver") Reviewed-by: Jacky Bai <ping.bai@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20240814124740.2778952-1-peng.fan@oss.nxp.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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767881c4 | 01-Oct-2023 |
Peng Fan <peng.fan@nxp.com> |
pmdomain: imx: scu-pd: correct DMA2 channel
Per "dt-bindings/firmware/imx/rsrc.h", `IMX_SC_R_DMA_2_CH0 + 5` not equals to IMX_SC_R_DMA_2_CH5, so there should be two entries in imx8qxp_scu_pd_ranges,
pmdomain: imx: scu-pd: correct DMA2 channel
Per "dt-bindings/firmware/imx/rsrc.h", `IMX_SC_R_DMA_2_CH0 + 5` not equals to IMX_SC_R_DMA_2_CH5, so there should be two entries in imx8qxp_scu_pd_ranges, otherwise the imx_scu_add_pm_domain may filter out wrong power domains.
Fixes: 927b7d15dcf2 ("genpd: imx: scu-pd: enlarge PD range") Reported-by: Dong Aisheng <Aisheng.dong@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20231001123853.200773-1-peng.fan@oss.nxp.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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