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SubjectRe: [PATCH v3 00/15] Move PMC clocks into Tegra PMC driver
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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.

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