Commit 1e434b70 authored by Anson Huang's avatar Anson Huang Committed by Shawn Guo

ARM: imx: update the cpu power up timing setting on i.mx6sx

The sw2iso count should cover ARM LDO ramp-up time,
the MAX ARM LDO ramp-up time may be up to more than
100us on some boards, this patch sets sw2iso to 0xf
(~384us) which is the reset value, and it is much
more safe to cover different boards, since we have
observed that some customer boards failed with current
setting of 0x2.

Fixes: 05136f08 ("ARM: imx: support arm power off in cpuidle for i.mx6sx")
Signed-off-by: default avatarAnson Huang <Anson.Huang@nxp.com>
Reviewed-by: default avatarFabio Estevam <festevam@gmail.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent c3b9ab5d
...@@ -110,7 +110,7 @@ int __init imx6sx_cpuidle_init(void) ...@@ -110,7 +110,7 @@ int __init imx6sx_cpuidle_init(void)
* except for power up sw2iso which need to be * except for power up sw2iso which need to be
* larger than LDO ramp up time. * larger than LDO ramp up time.
*/ */
imx_gpc_set_arm_power_up_timing(2, 1); imx_gpc_set_arm_power_up_timing(0xf, 1);
imx_gpc_set_arm_power_down_timing(1, 1); imx_gpc_set_arm_power_down_timing(1, 1);
return cpuidle_register(&imx6sx_cpuidle_driver, NULL); return cpuidle_register(&imx6sx_cpuidle_driver, NULL);
......
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