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SubjectRe: [PATCH v2 1/6] ARM: dra762: hwmod: Add MCAN support
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On 30/05/18 17:50, Tony Lindgren wrote:
> * Faiz Abbas <faiz_abbas@ti.com> [180530 14:12]:
>> From: Lokesh Vutla <lokeshvutla@ti.com>
>>
>> Add MCAN hwmod data and register it for dra762 silicons.
>>
>> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
>> Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
>> ---
>> arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 32 +++++++++++++++++++++++
>> 1 file changed, 32 insertions(+)
>>
>> diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
>> index 62352d1e6361..a2cd7f865a60 100644
>> --- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
>> +++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
>> @@ -1355,6 +1355,29 @@ static struct omap_hwmod dra7xx_mailbox13_hwmod = {
>> },
>> };
>>
>> +/*
>> + * 'mcan' class
>> + *
>> + */
>> +static struct omap_hwmod_class dra76x_mcan_hwmod_class = {
>> + .name = "mcan",
>> +};
>> +
>> +/* mcan */
>> +static struct omap_hwmod dra76x_mcan_hwmod = {
>> + .name = "mcan",
>> + .class = &dra76x_mcan_hwmod_class,
>> + .clkdm_name = "wkupaon_clkdm",
>> + .main_clk = "mcan_clk",
>> + .prcm = {
>> + .omap4 = {
>> + .clkctrl_offs = DRA7XX_CM_WKUPAON_ADC_CLKCTRL_OFFSET,
>> + .context_offs = DRA7XX_RM_WKUPAON_ADC_CONTEXT_OFFSET,
>> + .modulemode = MODULEMODE_SWCTRL,
>> + },
>> + },
>> +};
>
> You should be now able to leave out at least the clkctrl_offs and modulemode
> here. Please also check if leaving out clkdm_name and main_clk now works :)
>
>> @@ -3818,6 +3841,14 @@ static struct omap_hwmod_ocp_if dra7xx_l4_per2__epwmss2 = {
>> .user = OCP_USER_MPU,
>> };
>>
>> +/* l3_main_1 -> mcan */
>> +static struct omap_hwmod_ocp_if dra76x_l3_main_1__mcan = {
>> + .master = &dra7xx_l3_main_1_hwmod,
>> + .slave = &dra76x_mcan_hwmod,
>> + .clk = "l3_iclk_div",
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>
> I think this we still need though for the clk. Tero, do you have any comments
> on what all clocks can now be left out?

For the OCP if part, I think that is still needed until we switch over
to full sysc driver. clkctrl_offs you probably also need because that is
used for mapping the omap_hwmod against a specific clkctrl clock. Those
can be only removed once we are done with hwmod (or figure out some
other way to assign the clkctrl clock to a hwmod.)

-Tero
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

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