On some firmwares we have to tell how exactly we want the command to be run. The default case for now is to run it immediately.
Signed-off-by: Andy Shevchenko <[email protected]> --- arch/x86/platform/intel-mid/pwr.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/x86/platform/intel-mid/pwr.c b/arch/x86/platform/intel-mid/pwr.c index c901a34..0548741 100644 --- a/arch/x86/platform/intel-mid/pwr.c +++ b/arch/x86/platform/intel-mid/pwr.c @@ -44,6 +44,10 @@ /* Bits in PM_CMD */ #define PM_CMD_CMD(x) ((x) << 0) #define PM_CMD_IOC (1 << 8) +#define PM_CMD_CM_NOP (0 << 9) +#define PM_CMD_CM_IMMEDIATE (1 << 9) +#define PM_CMD_CM_DELAY (2 << 9) +#define PM_CMD_CM_TRIGGER (3 << 9) #define PM_CMD_D3cold (1 << 21) /* List of commands */ @@ -137,7 +141,7 @@ static int mid_pwr_wait(struct mid_pwr *pwr) static int mid_pwr_wait_for_cmd(struct mid_pwr *pwr, u8 cmd) { - writel(PM_CMD_CMD(cmd), pwr->regs + PM_CMD); + writel(PM_CMD_CMD(cmd) | PM_CMD_CM_IMMEDIATE, pwr->regs + PM_CMD); return mid_pwr_wait(pwr); } -- 2.8.1
