"Govindraj.R" <govindraj.raja@xxxxxx> writes:
> From: "Govindraj.R" <govindraj.raja@xxxxxx>
>
> On 24xx/34xx/36xx Module level wakeup events are enabled/disabled using
> PM_WKEN1_CORE/PM_WKEN_PER regs. The module level wakeups are enabled by
> default from bootloader,
Which bootloader? what board?
We cannot make any assumptions about what bootloader does (or doesn't
do).
There is also some default init to these PM_WKEN values in prcm_setup_regs()
for OMAP3 as well, which could be removed (at least for the UARTs) when
this is handled by the UART init code.
Kevin
> however the wakeups can be enabled/disabled
> using sysfs entry example for uart:
> echo disabled > /sys/devices/platform/omap/omap_uart.X/power/wakeup
> [X=0,1,2,3]
>
> So expand omap2 prcm structure to incorporate the PM_WKEN reg offset
> and bit mask to control the module level wakeup. This info from hwmod
> data can be used hwmod framework omap_hwmod_enable/disable_wakeup.
>
> Cc: Paul Walmsley <paul@xxxxxxxxx>
> Cc: Kevin Hilman <khilman@xxxxxx>
> Signed-off-by: Govindraj.R <govindraj.raja@xxxxxx>
> ---
> arch/arm/mach-omap2/omap_hwmod_2420_data.c | 6 ++++++
> arch/arm/mach-omap2/omap_hwmod_2430_data.c | 6 ++++++
> arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 8 ++++++++
> arch/arm/plat-omap/include/plat/omap_hwmod.h | 4 ++++
> 4 files changed, 24 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
> index a5409ce..676274b 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
> @@ -791,6 +791,8 @@ static struct omap_hwmod omap2420_uart1_hwmod = {
> .module_bit = OMAP24XX_EN_UART1_SHIFT,
> .idlest_reg_id = 1,
> .idlest_idle_bit = OMAP24XX_EN_UART1_SHIFT,
> + .module_wakeup_offs = PM_WKEN1,
> + .module_wakeup_bit = OMAP24XX_ST_UART1_MASK,
> },
> },
> .slaves = omap2420_uart1_slaves,
> @@ -816,6 +818,8 @@ static struct omap_hwmod omap2420_uart2_hwmod = {
> .module_bit = OMAP24XX_EN_UART2_SHIFT,
> .idlest_reg_id = 1,
> .idlest_idle_bit = OMAP24XX_EN_UART2_SHIFT,
> + .module_wakeup_offs = PM_WKEN1,
> + .module_wakeup_bit = OMAP24XX_ST_UART2_MASK,
> },
> },
> .slaves = omap2420_uart2_slaves,
> @@ -841,6 +845,8 @@ static struct omap_hwmod omap2420_uart3_hwmod = {
> .module_bit = OMAP24XX_EN_UART3_SHIFT,
> .idlest_reg_id = 2,
> .idlest_idle_bit = OMAP24XX_EN_UART3_SHIFT,
> + .module_wakeup_offs = OMAP24XX_PM_WKEN2,
> + .module_wakeup_bit = OMAP24XX_ST_UART3_MASK,
> },
> },
> .slaves = omap2420_uart3_slaves,
> diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
> index c4f56cb..94d4463 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
> @@ -864,6 +864,8 @@ static struct omap_hwmod omap2430_uart1_hwmod = {
> .module_bit = OMAP24XX_EN_UART1_SHIFT,
> .idlest_reg_id = 1,
> .idlest_idle_bit = OMAP24XX_EN_UART1_SHIFT,
> + .module_wakeup_offs = PM_WKEN1,
> + .module_wakeup_bit = OMAP24XX_ST_UART1_MASK,
> },
> },
> .slaves = omap2430_uart1_slaves,
> @@ -889,6 +891,8 @@ static struct omap_hwmod omap2430_uart2_hwmod = {
> .module_bit = OMAP24XX_EN_UART2_SHIFT,
> .idlest_reg_id = 1,
> .idlest_idle_bit = OMAP24XX_EN_UART2_SHIFT,
> + .module_wakeup_offs = PM_WKEN1,
> + .module_wakeup_bit = OMAP24XX_ST_UART2_MASK,
> },
> },
> .slaves = omap2430_uart2_slaves,
> @@ -914,6 +918,8 @@ static struct omap_hwmod omap2430_uart3_hwmod = {
> .module_bit = OMAP24XX_EN_UART3_SHIFT,
> .idlest_reg_id = 2,
> .idlest_idle_bit = OMAP24XX_EN_UART3_SHIFT,
> + .module_wakeup_offs = OMAP24XX_PM_WKEN2,
> + .module_wakeup_bit = OMAP24XX_ST_UART3_MASK,
> },
> },
> .slaves = omap2430_uart3_slaves,
> diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
> index 34b9766d..9ed038d 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
> @@ -1248,6 +1248,8 @@ static struct omap_hwmod omap3xxx_uart1_hwmod = {
> .module_bit = OMAP3430_EN_UART1_SHIFT,
> .idlest_reg_id = 1,
> .idlest_idle_bit = OMAP3430_EN_UART1_SHIFT,
> + .module_wakeup_offs = PM_WKEN1,
> + .module_wakeup_bit = OMAP3430_ST_UART1_MASK,
> },
> },
> .slaves = omap3xxx_uart1_slaves,
> @@ -1273,6 +1275,8 @@ static struct omap_hwmod omap3xxx_uart2_hwmod = {
> .module_bit = OMAP3430_EN_UART2_SHIFT,
> .idlest_reg_id = 1,
> .idlest_idle_bit = OMAP3430_EN_UART2_SHIFT,
> + .module_wakeup_offs = PM_WKEN1,
> + .module_wakeup_bit = OMAP3430_ST_UART2_MASK,
> },
> },
> .slaves = omap3xxx_uart2_slaves,
> @@ -1298,6 +1302,8 @@ static struct omap_hwmod omap3xxx_uart3_hwmod = {
> .module_bit = OMAP3430_EN_UART3_SHIFT,
> .idlest_reg_id = 1,
> .idlest_idle_bit = OMAP3430_EN_UART3_SHIFT,
> + .module_wakeup_offs = PM_WKEN1,
> + .module_wakeup_bit = OMAP3430_ST_UART3_MASK,
> },
> },
> .slaves = omap3xxx_uart3_slaves,
> @@ -1334,6 +1340,8 @@ static struct omap_hwmod omap3xxx_uart4_hwmod = {
> .module_bit = OMAP3630_EN_UART4_SHIFT,
> .idlest_reg_id = 1,
> .idlest_idle_bit = OMAP3630_EN_UART4_SHIFT,
> + .module_wakeup_offs = PM_WKEN1,
> + .module_wakeup_bit = OMAP3630_ST_UART4_MASK,
> },
> },
> .slaves = omap3xxx_uart4_slaves,
> diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h
> index 8070145..5c7711b 100644
> --- a/arch/arm/plat-omap/include/plat/omap_hwmod.h
> +++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h
> @@ -343,6 +343,8 @@ struct omap_hwmod_class_sysconfig {
> * @idlest_reg_id: IDLEST register ID (e.g., 3 for CM_IDLEST3)
> * @idlest_idle_bit: register bit shift for CM_IDLEST slave idle bit
> * @idlest_stdby_bit: register bit shift for CM_IDLEST master standby bit
> + * @module_wakeup_offs: PRCM register offset for PM_WKEN
> + * @module_wakeup_bit: regiter bit mask for PM_WKEN
> *
> * @prcm_reg_id and @module_bit are specific to the AUTOIDLE, WKST,
> * WKEN, GRPSEL registers. In an ideal world, no extra information
> @@ -357,6 +359,8 @@ struct omap_hwmod_omap2_prcm {
> u8 idlest_reg_id;
> u8 idlest_idle_bit;
> u8 idlest_stdby_bit;
> + s16 module_wakeup_offs;
> + u32 module_wakeup_bit;
> };
--
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