On Mon, Jan 13, 2020 at 11:24:05PM -0800, Sowjanya Komatineni wrote: > 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 utils to take > care of parent configuration for mclk if device tree don't specify > initial parent configuration using assigned-clock-parents and enable > audio mclk during utils init. > > 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. > > [v8]: Changes between v7 and v8 are > - v7 minor feedback > > - Audio mclk is needed only for audio, but there is some unknown > dependency of audio mclk and suspend-resume on Tegra30 where when > mclk is disable, suspend-resume doesn't work. > So v8 undoes v7 change of mclk enable and disable during machine > startup and shutdown and keeps audio mclk enabled in ASoC driver > tegra_asoc_utils_init. > > - change in the patches order. > > Note: > - Patches 1 thru 5 are to change CLK_M_DIV clocks to OSC_DIV clocks. > OSC_DIV clocks uses same ID as CLK_M_DIV clocks during the > transition to replace CLK_M_DIV with OSC_DIV. > - Patches 8 and 10 registers pmc clocks as pmc_clk_out_1/2/3, and > pmc_blink to avoid using same clock names as pmc clocks from > tegra_car provider to have them functionally work with all the > transition patches. > - Patch 11 adds audio mclk fallback to extern1 to have new DT work > with old kernels. This patch need to be back-ported. > - Patch 18 adds audio mclk parent configuration when DT doesn't > specify parent configs. This patch retrieves pmc_clk_out_1 as audio > mclk so added this patch after all DT updates to use pmc clocks > from tegra_pmc. > - Patch 19 does audio mclk enable during utils init to have it > enabled all the time. > - Patch 20 and 21 removes PMC clocks from clock driver and their IDs > at the end of PMC clocks transition to tegra_pmc. > > > [v7]: Changes between v6 and v7 are > - v6 minor feedback > - Added DT id for Tegra OSC to use in device tree for pmc clock > parent. > > [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. > This is not a functional bug fix but correction to use proper parent > name. > - 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 (22): > dt-bindings: clock: tegra: Add IDs for OSC clocks > clk: tegra: Add support for OSC_DIV fixed clocks > clk: tegra: Add Tegra OSC to clock lookup > clk: tegra: Fix Tegra PMC clock out parents > clk: tegra: Remove CLK_M_DIV fixed clocks > 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 > ASoC: tegra: Add fallback implementation for audio mclk > ASoC: tegra: Use device managed resource APIs to get the clock > 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 to tegra_pmc > ASoC: tegra: Add audio mclk parent configuration > ASoC: tegra: Enable audio mclk during tegra_asoc_utils_init > clk: tegra: Remove tegra_pmc_clk_init along with clk ids > dt-bindings: clock: tegra: Remove pmc clock ids from clock dt-bindings > clk: tegra: Remove audio clocks configuration from clock driver > > .../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 | 12 +- > drivers/clk/tegra/clk-tegra-fixed.c | 37 ++- > drivers/clk/tegra/clk-tegra-pmc.c | 122 ------- > drivers/clk/tegra/clk-tegra114.c | 43 +-- > drivers/clk/tegra/clk-tegra124.c | 48 ++- > drivers/clk/tegra/clk-tegra20.c | 9 +- > drivers/clk/tegra/clk-tegra210.c | 32 +- > drivers/clk/tegra/clk-tegra30.c | 33 +- > drivers/clk/tegra/clk.h | 1 - > drivers/soc/tegra/pmc.c | 354 +++++++++++++++++++++ > 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 | 7 +- > sound/soc/tegra/tegra_asoc_utils.c | 126 ++++---- > sound/soc/tegra/tegra_asoc_utils.h | 1 - > sound/soc/tegra/tegra_max98090.c | 22 +- > sound/soc/tegra/tegra_rt5640.c | 22 +- > sound/soc/tegra/tegra_rt5677.c | 7 +- > sound/soc/tegra/tegra_sgtl5000.c | 7 +- > sound/soc/tegra/tegra_wm8753.c | 22 +- > sound/soc/tegra/tegra_wm8903.c | 22 +- > sound/soc/tegra/tegra_wm9712.c | 8 +- > sound/soc/tegra/trimslice.c | 18 +- > 49 files changed, 1041 insertions(+), 775 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've applied patches 1-10 and 13-16 to the Tegra tree, but I think it should be fine for Mark to pick up the ASoC patches into his tree, right? As I mentioned in my reply to patch 20, I think we need to hold off on applying patches 20-22 until all the rest have been merged, otherwise we'll regress. Thierry
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