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* drivers: soc: split off powerdomains into new pmdomain directoryAhmad Fatoum2024-01-221-6/+0
| | | | | | | | | Linux v6.6 has moved the pmdomain drivers from drivers/soc to drivers/pmdomain. Follow its lead in barebox too. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20240119162610.1014870-2-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* imx: Fix Kconfig dependencyAlexander Shiyan2023-09-041-0/+1
| | | | | | | | | | | | | | | | WARNING: unmet direct dependencies detected for IMX_OCOTP Depends on [n]: NVMEM [=n] && (ARCH_IMX6 [=n] || ARCH_VF610 [=n] || ARCH_IMX8M[=y] || ARCH_IMX7 [=n]) && OFDEVICE [=y] Selected by [y]: - IMX8M_FEATCTRL [=y] && ARCH_IMX8M [=y] WARNING: unmet direct dependencies detected for IMX_OCOTP Depends on [n]: NVMEM [=n] && (ARCH_IMX6 [=n] || ARCH_VF610 [=n] || ARCH_IMX8M[=y] || ARCH_IMX7 [=n]) && OFDEVICE [=y] Selected by [y]: - IMX8M_FEATCTRL [=y] && ARCH_IMX8M [=y] Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com> Link: https://lore.barebox.org/20230824153933.817192-1-eagle.alexander923@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* soc: imx: have IMX8M_FEATCTRL select IMX_OCOTPAhmad Fatoum2023-07-041-0/+1
| | | | | | | | | | | | | | IMX8M_FEATCTRL selects FEATURE_CONTROLLER, so of_feature_controller_check() will return an error if the feature controller driver is missing. Given that the default for IMX_OCOTP is n, but for IMX8M_FEATCTRL is y, this error case is easily hit. Resolve this by selecting IMX_OCOTP when IMX8M_FEATCTRL is enabled. Reported-by: Bastian Krause <bst@pengutronix.de> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20230703172054.536931-2-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* soc: imx: featctrl: add help text for CONFIG_IMX8M_FEATCTRLAhmad Fatoum2023-07-041-1/+4
| | | | | | | | | There's no equivalent Linux driver, so a short help text is certainly in order. While at it, replace spaces with tabs for the prompt line. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20230703172054.536931-1-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/misc'Sascha Hauer2022-09-141-0/+6
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| * soc: imx: add i.MX8M feature controller driverAhmad Fatoum2022-09-011-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The tester4 fuse bank of the i.MX8M is a 32-bit collection of fuses, apaprently fused during test, which contains information about the available IPs: How many cores are available and whether a VPU and GPU is available an usable. Add a imx8m_feat_ctrl_init() function that initializes a bitmap of supported features using tester4's value and registers a feature controller with a check callback that just looks up the relevant bit. This function can then be called from a standalone driver or from the fuse bank (ocotp) driver itself. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220818051955.2088238-6-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | soc: imx: gpcv2: make available to all i.MX8MAhmad Fatoum2022-09-131-3/+3
|/ | | | | | | | | Now that the driver supports i.MX8M Mini, Nano and Plus, we should no longer restrict it to just i.MX7 and i.MX8MQ. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220905070406.539244-1-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* drivers: migrate "GPL-2.0" license identifiers to SPDX 2.0Roland Hieber2021-11-221-1/+1
| | | | | | | | | | "GPL-2.0-only" was introduced in SPDX 2.0, and the old identifier "GPL-2.0" is now considered deprecated; see <https://spdx.org/licenses>. Fixes: 28f4a6a4df76f0f1581d (2021-10-30, "drivers: add missing SPDX-License-Identifier") Signed-off-by: Roland Hieber <rhi@pengutronix.de> Link: https://lore.barebox.org/20211117113851.2022669-2-rhi@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* drivers: add missing SPDX-License-IdentifierAhmad Fatoum2021-11-011-0/+1
| | | | | | | | | | | | | | | | | | | | This adds the suitable SPDX-License-Identifier to all files in drivers/ that previously lacked one. To aid manual inspection, following heuristics can be used: * No changes outside of comments/whitespace: git show -U0 HEAD | rg -v '^(@@|diff|index)|[-+]([-+]|//|#|[\s/]\*)' * -or-later come in pairs: git show --inter-hunk-context=19 HEAD | \ perl -0777 -F'/^@/gm' -ne 'for (@F) { @m = /later/g; print if @m & 1 }' Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20211030175632.2276077-4-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* soc: imx: gpcv2: add support for i.MX8MQ SoCAndrey Smirnov2019-02-111-4/+4
| | | | | | | | | | | | | | | Port of a Linux commit 685efffe37c921cf1d56dd3c8617dc67bc343a99 The GPCv2 on the Freescale i.MX8MQ SoC works in the same way as the GPCv2 on the i.MX7, but only controls more power domains with a different mapping. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* soc: imx: Add GPCv2 power gating driverAndrey Smirnov2019-01-181-0/+9
Port of a Linux commit 03aa12629fc4f73acf28e519c9ee9cb1f5dd3706 Add code allowing for control of various power domains managed by GPCv2 IP block found in i.MX7 series of SoCs. Power domains covered by this patch are: - PCIE PHY - MIPI PHY - USB HSIC PHY - USB OTG1/2 PHY Support for any other power domain controlled by GPC is not present, and can be added at some later point. Testing of this code was done against a PCIe driver. Cc: yurovsky@gmail.com Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Dong Aisheng <dongas86@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Linux commit 9e01e2d56db23485a75864b6aeee8e443f024ddb was squashed here as well: soc: imx: gpcv2: fix regulator deferred probe If a regulator requests a deferred probe, the power domain gets initialized twice. This leads to a list double add (without list debugging the kernel hangs due to the double add later): WARNING: CPU: 0 PID: 19 at lib/list_debug.c:31 __list_add_valid+0xbc/0xc4 list_add double add: new=c1229754, prev=c12383b4, next=c1229754. Initialize the power domain after we get the regulator. Also do not print an error in case the regulator defers probing. Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Andrey Smirnov <andrew.smirnov@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Fixes: 03aa12629fc4 ("soc: imx: Add GPCv2 power gating driver") Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com> Tested-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Linux commit 3637f12faf507b0a4b8ac1e7115fc99583ab1db3 was squashed here as well soc: imx: gpcv2: correct PGC offset Correct MIPI/PCIe/USB_HSIC's PGC offset based on design RTL, the values in the Reference Manual (Rev. 1, 01/2018 and the older ones) are incorrect. The correct offset values should be as below: 0x800 ~ 0x83F: PGC for core0 of A7 platform; 0x840 ~ 0x87F: PGC for core1 of A7 platform; 0x880 ~ 0x8BF: PGC for SCU of A7 platform; 0xA00 ~ 0xA3F: PGC for fastmix/megamix; 0xC00 ~ 0xC3F: PGC for MIPI PHY; 0xC40 ~ 0xC7F: PGC for PCIe_PHY; 0xC80 ~ 0xCBF: PGC for USB OTG1 PHY; 0xCC0 ~ 0xCFF: PGC for USB OTG2 PHY; 0xD00 ~ 0xD3F: PGC for USB HSIC PHY; Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Fixes: 03aa12629fc4 ("soc: imx: Add GPCv2 power gating driver") Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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