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Message-ID: <OS0PR01MB592293A08F17EF65A39C56E5864B9@OS0PR01MB5922.jpnprd01.prod.outlook.com>
Date: Tue, 30 May 2023 18:26:01 +0000
From: Biju Das <biju.das.jz@...renesas.com>
To: Wolfram Sang <wsa@...nel.org>,
Alessandro Zummo <a.zummo@...ertech.it>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
CC: Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Geert Uytterhoeven <geert+renesas@...der.be>,
Magnus Damm <magnus.damm@...il.com>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-rtc@...r.kernel.org" <linux-rtc@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-renesas-soc@...r.kernel.org"
<linux-renesas-soc@...r.kernel.org>,
Fabrizio Castro <fabrizio.castro.jz@...esas.com>
Subject: RE: [PATCH v5 00/11] Add Renesas PMIC RAA215300 and built-in RTC
support
Hi all,
I am planning to split this series into 3 patch series from next version
onwards.
Patch set 1: i2c core patch + PMIC patches, as PMIC driver patch depend upon i2c core patch.
Patch set 2: RTC patchset
Patch set 3: Device tree changes.
Hope it is ok to everyone.
Cheers,
Biju
> -----Original Message-----
> From: Biju Das <biju.das.jz@...renesas.com>
> Sent: Monday, May 22, 2023 11:19 AM
> To: Wolfram Sang <wsa@...nel.org>; Alessandro Zummo
> <a.zummo@...ertech.it>; Alexandre Belloni
> <alexandre.belloni@...tlin.com>; Rob Herring <robh+dt@...nel.org>;
> Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
> Cc: Biju Das <biju.das.jz@...renesas.com>; Liam Girdwood
> <lgirdwood@...il.com>; Mark Brown <broonie@...nel.org>; Geert
> Uytterhoeven <geert+renesas@...der.be>; Magnus Damm
> <magnus.damm@...il.com>; devicetree@...r.kernel.org; linux-
> rtc@...r.kernel.org; linux-kernel@...r.kernel.org; linux-renesas-
> soc@...r.kernel.org; Fabrizio Castro <fabrizio.castro.jz@...esas.com>
> Subject: [PATCH v5 00/11] Add Renesas PMIC RAA215300 and built-in RTC
> support
>
> This patch series aims to add support for Renesas PMIC RAA215300 and
> built-in RTC found on this PMIC device.
>
> The details of PMIC can be found here[1].
>
> Renesas PMIC RAA215300 exposes two separate i2c devices, one for the
> main device and another for rtc device.
>
> Enhance i2c_new_ancillary_device() to instantiate a real device.
> (eg: Instantiate rtc device from PMIC driver)
>
> The built-in RTC found on PMIC RAA215300 is the same as ISL1208.
> However, the external oscillator bit is inverted on PMIC version 0x11.
> The PMIC driver detects PMIC version and instantiate appropriate RTC
> device.
>
> [1]
> https://www.renesas.com/in/en/products/power-power-management/multi-
> channel-power-management-ics-pmics/ssdsoc-power-management-ics-pmic-and-
> pmus/raa215300-high-performance-9-channel-pmic-supporting-ddr-memory-
> built-charger-and-rtc
>
> Ref:
>
> https://jpn01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatchw
> ork.kernel.org%2Fproject%2Flinux-renesas-
> soc%2Fpatch%2F20230505091720.115675-1-
> biju.das.jz%40bp.renesas.com%2F&data=05%7C01%7Cbiju.das.jz%40bp.renesas.
> com%7C086829526c5a4b09386808db5aadf404%7C53d82571da1947e49cb4625a166a4a2
> a%7C0%7C0%7C638203475387281433%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwM
> DAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=
> bZIDac5ULa%2F%2BX9u8ZBlXjAaka8vl%2B8tYKOgcXIOpIrk%3D&reserved=0
>
> https://jpn01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatchw
> ork.kernel.org%2Fproject%2Flinux-renesas-
> soc%2Fpatch%2F20230505172530.357455-5-
> biju.das.jz%40bp.renesas.com%2F&data=05%7C01%7Cbiju.das.jz%40bp.renesas.
> com%7C086829526c5a4b09386808db5aadf404%7C53d82571da1947e49cb4625a166a4a2
> a%7C0%7C0%7C638203475387281433%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwM
> DAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=
> aKyxhnzMXfirtEcR3XuGAhl%2FUPc6J0Bkx1iEqdvorB8%3D&reserved=0
>
> v4->v5:
> * Replaced parameter dev->parent in __i2c_new_client_device() and
> __i2c_new_dummy_device().
> * Improved error message in __i2c_new_dummy_device() by printing device
> name.
> * Updated comment for ancillary's device parent
> * Dropped aux_device_name check in i2c_new_ancillary_device().
> * Replaced oneOf->enum for clock-names as it is simpler.
> * Added Rb tag from Conor for binding patches#3 and #9.
> * Added Rb tag from Geert for patches#4, #5 and #6.
> * Replaced "unsigned long"->"kernel_ulong_t" in isl1208_id[].
> * Fixed the typo in commit description.
> * Replaced the variable int_osc_en->xtosb_val for isl1208_set_xtoscb()
> and
> changed the data type from bool->u8.
> * Replaced devm_clk_get->devm_clk_get_optional() in probe.
> * IS_ERR() related error is propagated and check for NULL to find out
> if a clock is present.
> * -ENOENT means clock not present, so any other errors are propagated.
> * Dropped bool inverted parameter from isl1208_set_xtoscb() instead
> using xor to compute the value of xtoscb.
> * Added description for clocks in PMIC bindings patch.
> * Dropped clk.h and started using of_property_present to check the
> clocks.
> v3->v4:
> * Dropped Rb tag from Geert for patch#1 as there are new changes.
> * Introduced __i2c_new_dummy_device() to share the code between
> i2c_new_dummy_device and i2c_new_ancillary_device().
> * Introduced __i2c_new_client_device() to pass parent dev
> parameter, so that the ancillary device can assign its parent during
> creation.
> * Added minItems to interrupt-names in binding patch.
> * Added interrupt-names in conditional schema check.
> * Documented clock and clock-names properties.
> * Dropped unused name variable from struct isl1208_config.
> * Make similar I2C and DT-based matching.
> * Drop enum isl1208_id and split the array isl1208_configs[].
> * Introduced isl1208_set_xtoscb() to set XTOSCB bit.
> * Added support for internal oscillator enable/disable.
> * Moved PMIC bindings from mfd->regulator.
> * Dropped minItems from reg.
> * Dropped renesas,rtc-enabled property and instead used clock-names
> property
> to find RTC is enabled or not.
> * Added reg-names in required property.
> * Updated the example.
> * Moved from mfd->regulator as it doesn't use MFD APIs
> * Dropped handling "renesas,rtc-enabled" property and instead used
> clock-names to determine RTC is enabled or not and then instantiating
> RTC device.
> * Added clock nodes.
> v2->v3:
> * Enhanced i2c_new_ancillary_device() to instantiate a real
> ancillary_device().
> * RTC device is instantiated by PMIC driver and dropped
> isl1208_probe_helper().
> * Added "TYPE_RAA215300_RTC_A0" to handle inverted oscillator bit case.
> * Added more detailed description for renesas,rtc-enabled property.
> * Added support for handling "renesas,rtc-enabled" property.
> * Based on PMIC version, it instantiates rtc device by calling i2c_new_
> ancillary_device().
> * Updated the logs.
> RFC->v2:
> * Dropped the cross-links from bindings and used a single compatible
> with separate i2c addresses for pmic main and rtc device.
> * Dropped patch#4 and split patch#3 from this series and send as
> separate patch to ML [2].
> * Added RTC platform driver and mfd cell entry to the PMIC driver.RTC
> platform driver creates rtc device by using
> i2c_new_ancillary_device()
> and register the rtc device by calling the helper function provided
> by rtc-isl2108 driver.
> * Updated reg property in bindings.
> * Added optional reg-names, interrupts and renesas,rtc-enabled
> properties.
> * Fixed the node name in the binding example
> * Dropped the cross link property renesas,raa215300-rtc.
> * Updated the binding example
> * Dropped MODULE_SOFTDEP from the driver as it is added in RTC platform
> driver.
> * Dropped compatible "renesas,raa215300-isl1208" and
> "renesas,raa215300-pmic" property.
> * Updated the comment polarity->bit for External Oscillator.
> * Added raa215300_rtc_probe_helper() for registering raa215300_rtc
> device and
> added the helper function isl1208_probe_helper() to share the code.
> * Updated pmic device node on the SoM dtsi based on the bindings.
>
> Logs:
> [ 15.447305] rtc-isl1208 3-006f: registered as rtc0
> [ 15.479493] rtc-isl1208 3-006f: setting system clock to 2023-04-
> 27T19:31:02 UTC (1682623862)
>
> root@...rc-rzv2l:~# hwclock -r
> 2023-04-27 19:33:05.499001+00:00
> root@...rc-rzv2l:~# hwclock -r
> 2023-04-27 19:33:06.936688+00:00
> root@...rc-rzv2l:~#
>
> Biju Das (11):
> i2c: Enhance i2c_new_ancillary_device API
> dt-bindings: rtc: isl1208: Convert to json-schema
> dt-bindings: rtc: isil,isl1208: Document clock and clock-names
> properties
> rtc: isl1208: Drop name variable
> rtc: isl1208: Make similar I2C and DT-based matching table
> rtc: isl1208: Drop enum isl1208_id and split isl1208_configs[]
> rtc: isl1208: Add isl1208_set_xtoscb()
> rtc: isl1208: Add support for the built-in RTC on the PMIC RAA215300
> regulator: dt-bindings: Add Renesas RAA215300 PMIC bindings
> regulator: Add Renesas PMIC RAA215300 driver
> arm64: dts: renesas: rzg2l-smarc-som: Enable PMIC and built-in RTC
>
> .../bindings/regulator/renesas,raa215300.yaml | 85 +++++++++++
> .../devicetree/bindings/rtc/isil,isl1208.txt | 38 -----
> .../devicetree/bindings/rtc/isil,isl1208.yaml | 100 +++++++++++++
> .../boot/dts/renesas/rzg2l-smarc-som.dtsi | 18 +++
> drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 6 +-
> drivers/i2c/i2c-core-base.c | 92 ++++++++----
> drivers/media/i2c/adv748x/adv748x-core.c | 2 +-
> drivers/media/i2c/adv7604.c | 3 +-
> drivers/regulator/Kconfig | 7 +
> drivers/regulator/Makefile | 1 +
> drivers/regulator/raa215300.c | 102 ++++++++++++++
> drivers/rtc/rtc-isl1208.c | 133 ++++++++++++++----
> include/linux/i2c.h | 3 +-
> 13 files changed, 484 insertions(+), 106 deletions(-) create mode
> 100644
> Documentation/devicetree/bindings/regulator/renesas,raa215300.yaml
> delete mode 100644
> Documentation/devicetree/bindings/rtc/isil,isl1208.txt
> create mode 100644
> Documentation/devicetree/bindings/rtc/isil,isl1208.yaml
> create mode 100644 drivers/regulator/raa215300.c
>
> --
> 2.25.1
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