Date:   Sat, 7 Dec 2019 11:22:02 -0800
From:   Sowjanya Komatineni <skomatineni@...dia.com>
To:     Dmitry Osipenko <digetx@...il.com>
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Subject: Re: [PATCH v3 00/15] Move PMC clocks into Tegra PMC driver


On 12/7/19 6:26 AM, Dmitry Osipenko wrote:
> 06.12.2019 05:48, Sowjanya Komatineni пишет:
>> Tegra PMC has clk_out_1, clk_out_2, clk_out_3 and blink controls which
>> are currently registered by Tegra clock driver using clk_regiser_mux and
>> clk_register_gate which performs direct Tegra PMC register access.
>>
>> When Tegra PMC is in secure mode, any access from non-secure world will
>> not go through.
>>
>> This patch series adds these Tegra PMC clocks and blink controls to Tegra
>> PMC driver with PMC as clock provider and removed them from Tegra clock
>> driver. This also adds PMC specific clock id's to use in device tree and
>> removed clock ids of PMC clock from Tegra clock driver.
>>
>> clk_out_1 is dedicated for audio mclk and current ASoC driver does not
>> setting extern1 as parent for clk_out_1 and enabling clk_out_1 and
>> currently this is taken care by Tegra clock driver during clock inits
>> and there is no need to enable this during clock init.
>>
>> So, this series also includes patch that updates ASoC driver to take
>> care of configuring parent of mclk and enabling mclk using both extern1
>> and clk_out_1 and updates all device trees to use clk_out_1 from pmc as
>> mclk incase if device tree don't specify assigned-clock-parents.
>>
>> This series also includes a patch for mclk fallback to use extern1
>> when retrieving mclk fails with new device tree which uses pmc provider
>> to have this backward compatible of new DT with old kernels.
>>
>> This series also includes a patch to remove clock ids for these clocks
>> from clock dt-binding as these clocks are not used in any of the existing
>> device tree except in tegra210-smaug.dts and this series includes a patch
>> to update clock provider from tegra_car to pmc in tegra210-smaug.dts for
>> clk_out_2.
>>
>> [v3]:	Changes between v2 and v3 are
>> 	- Removes set parent of clk_out_1_mux to extern1 and enabling
>> 	  extern1 from the clock driver.
>> 	- Doesn't enable clk_out_1 and blink by default in pmc driver
>> 	- Updates ASoC driver to take care of audio mclk parent
>> 	  configuration incase if device tree don't specify assigned
>> 	  clock parent properties and enables mclk using both clk_out_1
>> 	  and extern1.
>> 	- updates all device trees using extern1 as mclk in sound node
>> 	  to use clk_out_1 from pmc.
>> 	- patch for YAML format pmc dt-binding
>> 	- Includes v2 feedback
>>
>> [v2]:	Changes between v1 and v2 are
>> 	- v2 includes patches for adding clk_out_1, clk_out_2, clk_out_3,
>> 	  blink controls to Tegra PMC driver and removing clk-tegra-pmc.
>> 	- feedback related to pmc clocks in Tegra PMC driver from v1
>> 	- Removed patches for WB0 PLLM overrides and PLLE IDDQ PMC programming
>> 	  by the clock driver using helper functions from Tegra PMC.
>>
>>   	  Note:
>> 	  To use helper functions from PMC driver, PMC early init need to
>> 	  happen prior to using helper functions and these helper functions are
>> 	  for PLLM Override and PLLE IDDQ programming in PMC during PLLM/PLLE
>> 	  clock registration which happen in clock_init prior to Tegra PMC
>> 	  probe.
>> 	  Moving PLLM/PLLE clocks registration to happen after Tegra PMC
>> 	  impacts other clocks EMC, MC and corresponding tegra_emc_init and
>> 	  tegra_mc_init.
>> 	  This implementation of configuring PMC registers thru helper
>> 	  functions in clock driver needs proper changes across PMC, Clock,
>> 	  EMC and MC inits to have it work across all Tegra platforms.
>>
>> 	  Currently PLLM Override is not enabled in the bootloader so proper
>> 	  patches for this fix will be taken care separately.
>>
>> [v1]:	v1 includes patches for below fixes.
>> 	- adding clk_out_1, clk_out_2, clk_out_3, blink controls to Tegra PMC
>> 	  driver and removing clk-tegra-pmc.
>> 	- updated clock provider from tegra_car to pmc in the device tree
>> 	  tegra210-smaug.dts that uses clk_out_2.
>> 	- Added helper functions in PMC driver for WB0 PLLM overrides and PLLE
>> 	  IDDQ programming to use by clock driver and updated clock driver to
>> 	  use these helper functions and removed direct PMC access from clock
>> 	  driver and all pmc base address references in clock driver.
>>
>>
>> Sowjanya Komatineni (15):
>>    dt-bindings: soc: tegra-pmc: Add Tegra PMC clock bindings
>>    dt-bindings: tegra: Convert Tegra PMC bindings to YAML
>>    soc: tegra: Add Tegra PMC clock registrations into PMC driver
>>    dt-bindings: soc: tegra-pmc: Add id for Tegra PMC blink control
>>    soc: pmc: Add blink output clock registration to Tegra PMC
>>    clk: tegra: Remove tegra_pmc_clk_init along with clk ids
>>    dt-bindings: clock: tegra: Remove pmc clock ids from clock dt-bindings
>>    ASoC: tegra: Add audio mclk control through clk_out_1 and extern1
>>    ASoC: tegra: Add fallback for audio mclk
>>    clk: tegra: Remove extern1 and cdev1 from clocks inittable
>>    ARM: dts: tegra: Add clock-cells property to pmc
>
>>    arm64: tegra: Add clock-cells property to Tegra PMC node
>>    ARM: tegra: Update sound node clocks in device tree
>>    arm64: tegra: smaug: Change clk_out_2 provider to pmc
>>    ASoC: nau8825: change Tegra clk_out_2 provider from tegra_car to pmc
> Hello Sowjanya,
>
> Something gone wrong with these patches because I didn't receive them
> and don't see them on the ML either.
>
> Also, the list of email correspondents looks a bit too larger. I'm
> pretty sure some of the people do not care much about this series. I
> tend to use script/get_maintainer.pl and then manually pick the relevant
> people for patches.

Not sure what went wrong. I sent this series to all previous mailing 
list and inaddition added based on get_maintainers scripts for ASoC and 
device tree related.

Will manually pick and reduce mailing list for next series..

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