3.3-stable review patch. If anyone has any objections, please let me know.
------------------ From: Santosh Shilimkar <[email protected]> commit 5ae256dcd91bf308826a4ac19598b27ebb86a536 upstream. The current serial UART code, while fidling with ocp idlemode bits, forget about the smart idle wakeup bit even if it is supported by UART IP block. This will lead to missing the module wakeup on OMAP's where the smart idle wakeup is supported. This was the root cause of the console sluggishness issue, I have been observing on OMAP4 devices and also can be potential reason for some other UART wakeup issues. Signed-off-by: Santosh Shilimkar <[email protected]> Acked-by: Kevin Hilman <[email protected]> Acked-by: Govindraj.R <[email protected]> Reviewed-by: Paul Walmsley <[email protected]> Signed-off-by: Tony Lindgren <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- arch/arm/mach-omap2/serial.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -110,8 +110,14 @@ static void omap_uart_set_noidle(struct static void omap_uart_set_smartidle(struct platform_device *pdev) { struct omap_device *od = to_omap_device(pdev); + u8 idlemode; - omap_hwmod_set_slave_idlemode(od->hwmods[0], HWMOD_IDLEMODE_SMART); + if (od->hwmods[0]->class->sysc->idlemodes & SIDLE_SMART_WKUP) + idlemode = HWMOD_IDLEMODE_SMART_WKUP; + else + idlemode = HWMOD_IDLEMODE_SMART; + + omap_hwmod_set_slave_idlemode(od->hwmods[0], idlemode); } #else -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
