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Date: Wed, 8 Jan 2020 04:01:12 +0300
From: Dmitry Osipenko <digetx@...il.com>
To: Sowjanya Komatineni <skomatineni@...dia.com>,
thierry.reding@...il.com, jonathanh@...dia.com, broonie@...nel.org,
lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com,
mperttunen@...dia.com, gregkh@...uxfoundation.org,
sboyd@...nel.org, robh+dt@...nel.org, mark.rutland@....com
Cc: pdeschrijver@...dia.com, pgaikwad@...dia.com, spujar@...dia.com,
josephl@...dia.com, daniel.lezcano@...aro.org,
mmaddireddy@...dia.com, markz@...dia.com,
devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 00/19] Move PMC clocks into Tegra PMC driver
08.01.2020 03:02, Sowjanya Komatineni пишет:
>
> On 1/7/20 3:28 PM, Dmitry Osipenko wrote:
>> 08.01.2020 02:24, Sowjanya Komatineni пишет:
>>> On 1/7/20 3:01 PM, Dmitry Osipenko wrote:
>>>> Hello Sowjanya,
>>>>
>>>> 07.01.2020 07:13, Sowjanya Komatineni пишет:
>>>>> This patch series moves Tegra PMC clocks from clock driver to pmc
>>>>> driver
>>>>> along with the device trees changes and audio driver which uses one of
>>>>> the pmc clock for audio mclk.
>>>>>
>>>>> 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 removes them from Tegra
>>>>> clock
>>>>> driver.
>>>>>
>>>>> PMC clock clk_out_1 is dedicated for audio mclk from Tegra30 thru
>>>>> Tegra210
>>>>> and clock driver does inital parent configuration for it and enables
>>>>> them.
>>>>> But this clock should be taken care by audio driver as there is no
>>>>> need
>>>>> to have this clock pre enabled.
>>>>>
>>>>> So, this series also includes patch that updates ASoC driver to take
>>>>> care of parent configuration for mclk if device tree don't specify
>>>>> initial parent configuration using assigned-clock-parents and controls
>>>>> audio mclk enable/disable during ASoC machine startup and shutdown.
>>>>>
>>>>> DTs are also updated to use clk_out_1 as audio mclk rather than
>>>>> extern1.
>>>>>
>>>>> This series also includes a patch for mclk fallback to extern1 when
>>>>> retrieving mclk fails to have this backward compatible of new DT with
>>>>> old kernels.
>>>>>
>>>>> [v6]: Changes between v5 and v6 are
>>>>> - v5 feedback
>>>>> - Added ASoC machine startup and shutdown callbacks to control
>>>>> audio
>>>>> mclk enable/disable and removed default mclk enable from clock
>>>>> driver.
>>>>> - Updated tegra_asoc_utils_set_rate to disable mclk only
>>>>> during PLLA
>>>>> rate change and removed disabling PLLA as its already taken
>>>>> care by
>>>>> pll clock driver.
>>>>> - Removed tegra_asoc_utils_set_rate call from utils_init as
>>>>> set_rate
>>>>> is set during machine hw_params and during utils_init mclk is
>>>>> already in disabled state and this causes warning during mclk
>>>>> disable
>>>>> in utils_set_rate.
>>>>>
>>>>> [v5]: Changes between v4 and v5 are
>>>>> - v4 feedback
>>>>> - updated dt-binding pmc YAML schema with more description on
>>>>> power
>>>>> gate nodes and pad configuration state nodes.
>>>>> - update tegra_asoc_utils_set_rate to disable audio mclk only if
>>>>> its in enable state.
>>>>>
>>>>> [v4]: Changes between v3 and v4 are
>>>>> - v3 Feedback
>>>>> - Updated clocks clk_m_div2 and clk_m_div4 as osc_div2 and
>>>>> osc_div4.
>>>>> Tegra don't have clk_m_div2, clk_m_div4 and they should
>>>>> actually
>>>>> be osc_div2 and osc_div4 clocks from osc pads.
>>>>> - Fixed PMC clock parents to use osc, osc_div2, osc_div4.
>>>>> - Register each PMC clock as single clock rather than separate
>>>>> mux and gate clocks.
>>>>> - Update ASoC utils to use resource managed APIs rather than
>>>>> using clk_get and clk_put.
>>>>> - Updated device tree and ASoC driver to use clk_out_1 instead of
>>>>> clk_out_1_mux as PMC clocks are registered as single clock.
>>>>> - Update clock driver init_table to not enable audio related
>>>>> clocks
>>>>> as ASoC utils will do audio clock enables.
>>>>>
>>>>> [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 (19):
>>>>> dt-bindings: clock: tegra: Change CLK_M_DIV to OSC_DIV clocks
>>>>> clk: tegra: Change CLK_M_DIV clocks to OSC_DIV clocks
>>>>> clk: tegra: Fix Tegra PMC clock out parents
>>>>> dt-bindings: tegra: Convert Tegra PMC bindings to YAML
>>>>> dt-bindings: soc: tegra-pmc: Add Tegra PMC clock bindings
>>>>> soc: tegra: Add Tegra PMC clocks registration into PMC driver
>>>>> dt-bindings: soc: tegra-pmc: Add id for Tegra PMC 32KHz blink
>>>>> clock
>>>>> soc: tegra: Add support for 32KHz blink clock
>>>>> 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: Use device managed resource APIs to get the clock
>>>>> ASoC: tegra: Add audio mclk configuration
>>>>> ASoC: tegra: Add fallback implementation for audio mclk
>>>>> clk: tegra: Remove audio related clock enables from init_table
>>>>> 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
>>>>>
>>>>> .../bindings/arm/tegra/nvidia,tegra20-pmc.txt | 300
>>>>> -----------------
>>>>> .../bindings/arm/tegra/nvidia,tegra20-pmc.yaml | 354
>>>>> +++++++++++++++++++++
>>>>> .../devicetree/bindings/sound/nau8825.txt | 2 +-
>>>>> arch/arm/boot/dts/tegra114-dalmore.dts | 8 +-
>>>>> arch/arm/boot/dts/tegra114.dtsi | 4 +-
>>>>> arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi | 8 +-
>>>>> arch/arm/boot/dts/tegra124-apalis.dtsi | 8 +-
>>>>> arch/arm/boot/dts/tegra124-jetson-tk1.dts | 8 +-
>>>>> arch/arm/boot/dts/tegra124-nyan.dtsi | 8 +-
>>>>> arch/arm/boot/dts/tegra124-venice2.dts | 8 +-
>>>>> arch/arm/boot/dts/tegra124.dtsi | 4 +-
>>>>> arch/arm/boot/dts/tegra20.dtsi | 4 +-
>>>>> arch/arm/boot/dts/tegra30-apalis-v1.1.dtsi | 8 +-
>>>>> arch/arm/boot/dts/tegra30-apalis.dtsi | 8 +-
>>>>> arch/arm/boot/dts/tegra30-beaver.dts | 8 +-
>>>>> arch/arm/boot/dts/tegra30-cardhu.dtsi | 8 +-
>>>>> arch/arm/boot/dts/tegra30-colibri.dtsi | 8 +-
>>>>> arch/arm/boot/dts/tegra30.dtsi | 4 +-
>>>>> arch/arm64/boot/dts/nvidia/tegra132.dtsi | 4 +-
>>>>> arch/arm64/boot/dts/nvidia/tegra210-smaug.dts | 2 +-
>>>>> arch/arm64/boot/dts/nvidia/tegra210.dtsi | 6 +-
>>>>> drivers/clk/tegra/Makefile | 1 -
>>>>> drivers/clk/tegra/clk-id.h | 11 +-
>>>>> drivers/clk/tegra/clk-tegra-fixed.c | 32 +-
>>>>> drivers/clk/tegra/clk-tegra-pmc.c | 122 -------
>>>>> drivers/clk/tegra/clk-tegra114.c | 41 +--
>>>>> drivers/clk/tegra/clk-tegra124.c | 46 +--
>>>>> drivers/clk/tegra/clk-tegra20.c | 9 +-
>>>>> drivers/clk/tegra/clk-tegra210.c | 30 +-
>>>>> drivers/clk/tegra/clk-tegra30.c | 31 +-
>>>>> drivers/clk/tegra/clk.h | 1 -
>>>>> drivers/soc/tegra/pmc.c | 352
>>>>> ++++++++++++++++++++
>>>>> include/dt-bindings/clock/tegra114-car.h | 18 +-
>>>>> include/dt-bindings/clock/tegra124-car-common.h | 18 +-
>>>>> include/dt-bindings/clock/tegra20-car.h | 2 +-
>>>>> include/dt-bindings/clock/tegra210-car.h | 18 +-
>>>>> include/dt-bindings/clock/tegra30-car.h | 18 +-
>>>>> include/dt-bindings/soc/tegra-pmc.h | 16 +
>>>>> sound/soc/tegra/tegra_alc5632.c | 28 +-
>>>>> sound/soc/tegra/tegra_asoc_utils.c | 125 ++++----
>>>>> sound/soc/tegra/tegra_asoc_utils.h | 3 +-
>>>>> sound/soc/tegra/tegra_max98090.c | 43 ++-
>>>>> sound/soc/tegra/tegra_rt5640.c | 43 ++-
>>>>> sound/soc/tegra/tegra_rt5677.c | 28 +-
>>>>> sound/soc/tegra/tegra_sgtl5000.c | 28 +-
>>>>> sound/soc/tegra/tegra_wm8753.c | 43 ++-
>>>>> sound/soc/tegra/tegra_wm8903.c | 43 ++-
>>>>> sound/soc/tegra/tegra_wm9712.c | 8 +-
>>>>> sound/soc/tegra/trimslice.c | 39 ++-
>>>>> 49 files changed, 1192 insertions(+), 777 deletions(-)
>>>>> delete mode 100644
>>>>> Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
>>>>> create mode 100644
>>>>> Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml
>>>>> delete mode 100644 drivers/clk/tegra/clk-tegra-pmc.c
>>>>> create mode 100644 include/dt-bindings/soc/tegra-pmc.h
>>>>>
>>>> I briefly looked through the patches and tested them in all possible
>>>> configurations. For now everything looks and works well.
>>>>
>>>> You could add this to all patches:
>>>>
>>>> Tested-by: Dmitry Osipenko <digetx@...il.com>
>>>> Reviewed-by: Dmitry Osipenko <digetx@...il.com>
>>> Thanks Dmitry
>> Actually, it will be more accurate if you will add my t-b only to the
>> T20/30 patches. I only looked through the T114+ patches without testing
>> them, thanks.
>
> Most of patches has changes to t20 through t210.
>
> Just to be clear, do you meant to add Tested-by to patches 6, 8, 11, 12,
> 13 and Reviewed-by tag to all patches?
>
You could add t-b to the patches 1-15 (I ran dtbs_check), 17. The r-b is
for all patches.
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