From patchwork Mon Oct 26 11:10:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11856663 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A10E9139F for ; Mon, 26 Oct 2020 11:11:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 87F6822265 for ; Mon, 26 Oct 2020 11:11:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1773111AbgJZLLB (ORCPT ); Mon, 26 Oct 2020 07:11:01 -0400 Received: from muru.com ([72.249.23.125]:46498 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1772586AbgJZLLA (ORCPT ); Mon, 26 Oct 2020 07:11:00 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id F14E48196; Mon, 26 Oct 2020 11:11:01 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: "Andrew F . Davis" , Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Grygorii Strashko , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Bjorn Andersson , Michael Turquette , Philipp Zabel , Santosh Shilimkar , Stephen Boyd , linux-clk@vger.kernel.org, linux-remoteproc@vger.kernel.org Subject: [PATCH 1/9] ARM: OMAP2+: Check for inited flag Date: Mon, 26 Oct 2020 13:10:41 +0200 Message-Id: <20201026111049.54835-2-tony@atomide.com> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201026111049.54835-1-tony@atomide.com> References: <20201026111049.54835-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org If we have no hwmods configured and omap_hwmod_init() is not called, we don't want to call omap_hwmod_setup_all() as it will fail with checks for configured MPU at least. Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/omap_hwmod.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -627,6 +627,9 @@ static struct clockdomain *_get_clkdm(struct omap_hwmod *oh) { struct clk_hw_omap *clk; + if (!oh) + return NULL; + if (oh->clkdm) { return oh->clkdm; } else if (oh->_clk) { @@ -3677,6 +3680,9 @@ static void __init omap_hwmod_setup_earlycon_flags(void) */ static int __init omap_hwmod_setup_all(void) { + if (!inited) + return 0; + _ensure_mpu_hwmod_is_setup(NULL); omap_hwmod_for_each(_init, NULL); From patchwork Mon Oct 26 11:10:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11856667 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 385C5697 for ; Mon, 26 Oct 2020 11:11:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1DAE822265 for ; Mon, 26 Oct 2020 11:11:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1773123AbgJZLLF (ORCPT ); Mon, 26 Oct 2020 07:11:05 -0400 Received: from muru.com ([72.249.23.125]:46510 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1773120AbgJZLLE (ORCPT ); Mon, 26 Oct 2020 07:11:04 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 35B8380AA; Mon, 26 Oct 2020 11:11:06 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: "Andrew F . Davis" , Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Grygorii Strashko , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Bjorn Andersson , Michael Turquette , Philipp Zabel , Santosh Shilimkar , Stephen Boyd , linux-clk@vger.kernel.org, linux-remoteproc@vger.kernel.org Subject: [PATCH 2/9] ARM: OMAP2+: Probe PRCM first to probe l4_wkup with simple-pm-bus Date: Mon, 26 Oct 2020 13:10:42 +0200 Message-Id: <20201026111049.54835-3-tony@atomide.com> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201026111049.54835-1-tony@atomide.com> References: <20201026111049.54835-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org In preparation for probing the interconnects with simple-pm-bus to make use of genpd, we need to probe the always-on PRCM first for the clocks needed by l4_wkup instance. Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/pdata-quirks.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c --- a/arch/arm/mach-omap2/pdata-quirks.c +++ b/arch/arm/mach-omap2/pdata-quirks.c @@ -580,6 +580,8 @@ static void pdata_quirks_check(struct pdata_init *quirks) void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table) { + struct device_node *np; + /* * We still need this for omap2420 and omap3 PM to work, others are * using drivers/misc/sram.c already. @@ -591,6 +593,15 @@ void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table) if (of_machine_is_compatible("ti,omap3")) omap3_mcbsp_init(); pdata_quirks_check(auxdata_quirks); + + /* Populate always-on PRCM in l4_wkup to probe l4_wkup */ + np = of_find_node_by_name(NULL, "prcm"); + if (!np) + np = of_find_node_by_name(NULL, "prm"); + if (np) + of_platform_populate(np, omap_dt_match_table, + omap_auxdata_lookup, NULL); + of_platform_populate(NULL, omap_dt_match_table, omap_auxdata_lookup, NULL); pdata_quirks_check(pdata_quirks); From patchwork Mon Oct 26 11:10:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11856669 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7F7FF1130 for ; Mon, 26 Oct 2020 11:11:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6D5312224A for ; Mon, 26 Oct 2020 11:11:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1773137AbgJZLLK (ORCPT ); Mon, 26 Oct 2020 07:11:10 -0400 Received: from muru.com ([72.249.23.125]:46530 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1773135AbgJZLLI (ORCPT ); Mon, 26 Oct 2020 07:11:08 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 39A0481A0; Mon, 26 Oct 2020 11:11:10 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: "Andrew F . Davis" , Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Grygorii Strashko , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, Michael Turquette , Stephen Boyd , Bjorn Andersson , Philipp Zabel , Santosh Shilimkar , linux-remoteproc@vger.kernel.org Subject: [PATCH 3/9] clk: ti: am33xx: Keep am3 l3 main clock always on for genpd Date: Mon, 26 Oct 2020 13:10:43 +0200 Message-Id: <20201026111049.54835-4-tony@atomide.com> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201026111049.54835-1-tony@atomide.com> References: <20201026111049.54835-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org In order for suspend and resume to work with genpd on am3, we must keep l3 main clock always on. Otherwise prm_omap driver will shut down the l3 main clock on suspend when simple-pm-bus and GENPD_FLAG_PM_CLK are used. Note that we already keep the l3 main clock always on with the legacy platform code. Later on we may want to start managing the l3 main clock with a dedicated interconnect driver instead of using simple-pm-bus and GENPD_FLAG_PM_CLK. Cc: linux-clk@vger.kernel.org Cc: Michael Turquette Cc: Stephen Boyd Cc: Tero Kristo Signed-off-by: Tony Lindgren --- drivers/clk/ti/clk-33xx.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/clk/ti/clk-33xx.c b/drivers/clk/ti/clk-33xx.c --- a/drivers/clk/ti/clk-33xx.c +++ b/drivers/clk/ti/clk-33xx.c @@ -266,6 +266,8 @@ static const char *enable_init_clks[] = { "dpll_ddr_m2_ck", "dpll_mpu_m2_ck", "l3_gclk", + /* AM3_L3_L3_MAIN_CLKCTRL, needed during suspend */ + "l3-clkctrl:00bc:0", "l4hs_gclk", "l4fw_gclk", "l4ls_gclk", From patchwork Mon Oct 26 11:10:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11856679 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8794C697 for ; Mon, 26 Oct 2020 11:11:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 708C222263 for ; Mon, 26 Oct 2020 11:11:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1772482AbgJZLLP (ORCPT ); Mon, 26 Oct 2020 07:11:15 -0400 Received: from muru.com ([72.249.23.125]:46554 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1773143AbgJZLLM (ORCPT ); Mon, 26 Oct 2020 07:11:12 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 3BC7B80AA; Mon, 26 Oct 2020 11:11:14 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: "Andrew F . Davis" , Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Grygorii Strashko , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Bjorn Andersson , Michael Turquette , Philipp Zabel , Santosh Shilimkar , Stephen Boyd , linux-clk@vger.kernel.org, linux-remoteproc@vger.kernel.org Subject: [PATCH 4/9] bus: ti-sysc: Support modules without control registers Date: Mon, 26 Oct 2020 13:10:44 +0200 Message-Id: <20201026111049.54835-5-tony@atomide.com> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201026111049.54835-1-tony@atomide.com> References: <20201026111049.54835-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Some modules like MPU have a powerdomain and functional clock but not necessarily any control registers. Let's allow configuring interconnect target modules with no control registers. Signed-off-by: Tony Lindgren --- drivers/bus/ti-sysc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -850,8 +850,12 @@ static int sysc_ioremap(struct sysc *ddata) */ static int sysc_map_and_check_registers(struct sysc *ddata) { + struct device_node *np = ddata->dev->of_node; int error; + if (!of_get_property(np, "reg", NULL)) + return 0; + error = sysc_parse_and_check_child_range(ddata); if (error) return error; @@ -2906,6 +2910,9 @@ static int sysc_probe(struct platform_device *pdev) if (!ddata) return -ENOMEM; + ddata->offsets[SYSC_REVISION] = -ENODEV; + ddata->offsets[SYSC_SYSCONFIG] = -ENODEV; + ddata->offsets[SYSC_SYSSTATUS] = -ENODEV; ddata->dev = &pdev->dev; platform_set_drvdata(pdev, ddata); From patchwork Mon Oct 26 11:10:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11856709 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B943D1130 for ; Mon, 26 Oct 2020 11:12:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9BAC222263 for ; Mon, 26 Oct 2020 11:12:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1773155AbgJZLLU (ORCPT ); Mon, 26 Oct 2020 07:11:20 -0400 Received: from muru.com ([72.249.23.125]:46568 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1773149AbgJZLLQ (ORCPT ); Mon, 26 Oct 2020 07:11:16 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 3C51D8196; Mon, 26 Oct 2020 11:11:18 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: "Andrew F . Davis" , Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Grygorii Strashko , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Bjorn Andersson , Michael Turquette , Philipp Zabel , Santosh Shilimkar , Stephen Boyd , linux-clk@vger.kernel.org, linux-remoteproc@vger.kernel.org Subject: [PATCH 5/9] bus: ti-sysc: Implement GPMC debug quirk to drop platform data Date: Mon, 26 Oct 2020 13:10:45 +0200 Message-Id: <20201026111049.54835-6-tony@atomide.com> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201026111049.54835-1-tony@atomide.com> References: <20201026111049.54835-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org We need to enable no-reset-on-init quirk for GPMC if the config option for CONFIG_OMAP_GPMC_DEBUG is set. Otherwise the GPMC driver code is unable to show the bootloader configured timings. Signed-off-by: Tony Lindgren --- drivers/bus/ti-sysc.c | 10 ++++++++++ include/linux/platform_data/ti-sysc.h | 1 + 2 files changed, 11 insertions(+) diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -1382,6 +1382,8 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { SYSC_QUIRK_CLKDM_NOAUTO), SYSC_QUIRK("dwc3", 0x488c0000, 0, 0x10, -ENODEV, 0x500a0200, 0xffffffff, SYSC_QUIRK_CLKDM_NOAUTO), + SYSC_QUIRK("gpmc", 0, 0, 0x10, 0x14, 0x00000060, 0xffffffff, + SYSC_QUIRK_GPMC_DEBUG), SYSC_QUIRK("hdmi", 0, 0, 0x10, -ENODEV, 0x50030200, 0xffffffff, SYSC_QUIRK_OPT_CLKS_NEEDED), SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x00000006, 0xffffffff, @@ -1815,6 +1817,14 @@ static void sysc_init_module_quirks(struct sysc *ddata) return; } +#ifdef CONFIG_OMAP_GPMC_DEBUG + if (ddata->cfg.quirks & SYSC_QUIRK_GPMC_DEBUG) { + ddata->cfg.quirks |= SYSC_QUIRK_NO_RESET_ON_INIT; + + return; + } +#endif + if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_I2C) { ddata->pre_reset_quirk = sysc_pre_reset_quirk_i2c; ddata->post_reset_quirk = sysc_post_reset_quirk_i2c; diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h --- a/include/linux/platform_data/ti-sysc.h +++ b/include/linux/platform_data/ti-sysc.h @@ -50,6 +50,7 @@ struct sysc_regbits { s8 emufree_shift; }; +#define SYSC_QUIRK_GPMC_DEBUG BIT(26) #define SYSC_MODULE_QUIRK_ENA_RESETDONE BIT(25) #define SYSC_MODULE_QUIRK_PRUSS BIT(24) #define SYSC_MODULE_QUIRK_DSS_RESET BIT(23) From patchwork Mon Oct 26 11:10:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11856683 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5F37A697 for ; Mon, 26 Oct 2020 11:11:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4B30222277 for ; Mon, 26 Oct 2020 11:11:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1773164AbgJZLLW (ORCPT ); Mon, 26 Oct 2020 07:11:22 -0400 Received: from muru.com ([72.249.23.125]:46584 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1773157AbgJZLLU (ORCPT ); Mon, 26 Oct 2020 07:11:20 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 3B65A80AA; Mon, 26 Oct 2020 11:11:22 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: "Andrew F . Davis" , Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Grygorii Strashko , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Santosh Shilimkar , Bjorn Andersson , Michael Turquette , Philipp Zabel , Stephen Boyd , linux-clk@vger.kernel.org, linux-remoteproc@vger.kernel.org Subject: [PATCH 6/9] soc: ti: omap-prm: Add pm_clk for genpd Date: Mon, 26 Oct 2020 13:10:46 +0200 Message-Id: <20201026111049.54835-7-tony@atomide.com> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201026111049.54835-1-tony@atomide.com> References: <20201026111049.54835-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org In order to probe l3 and l4 interconnects with simple-pm-bus, we want genpd to manage the clocks for the interconnects. For interconnect target modules, we already have ti-sysc manage the clocks so let's skipe managing clocks for ti-sysc modules. Cc: Santosh Shilimkar Signed-off-by: Tony Lindgren --- drivers/soc/ti/omap_prm.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/drivers/soc/ti/omap_prm.c b/drivers/soc/ti/omap_prm.c --- a/drivers/soc/ti/omap_prm.c +++ b/drivers/soc/ti/omap_prm.c @@ -7,6 +7,7 @@ */ #include +#include #include #include #include @@ -14,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -325,6 +327,35 @@ static int omap_prm_domain_power_off(struct generic_pm_domain *domain) return 0; } +/* + * Note that ti-sysc already manages the module clocks separately so + * no need to manage those. Interconnect instances need clocks managed + * for simple-pm-bus. + */ +static int omap_prm_domain_attach_clock(struct device *dev) +{ + struct device_node *np = dev->of_node; + int error; + + if (of_device_is_compatible(np, "ti-sysc")) + return 0; + + if (!of_property_read_bool(np, "clocks")) + return 0; + + error = pm_clk_create(dev); + if (error) + return error; + + error = of_pm_clk_add_clks(dev); + if (error < 0) { + pm_clk_destroy(dev); + return error; + } + + return 0; +} + static int omap_prm_domain_attach_dev(struct generic_pm_domain *domain, struct device *dev) { @@ -349,6 +380,10 @@ static int omap_prm_domain_attach_dev(struct generic_pm_domain *domain, genpd_data = dev_gpd_data(dev); genpd_data->data = NULL; + ret = omap_prm_domain_attach_clock(dev); + if (ret) + return ret; + return 0; } @@ -357,6 +392,7 @@ static void omap_prm_domain_detach_dev(struct generic_pm_domain *domain, { struct generic_pm_domain_data *genpd_data; + pm_clk_destroy(dev); genpd_data = dev_gpd_data(dev); genpd_data->data = NULL; } @@ -393,6 +429,7 @@ static int omap_prm_domain_init(struct device *dev, struct omap_prm *prm) prmd->pd.power_off = omap_prm_domain_power_off; prmd->pd.attach_dev = omap_prm_domain_attach_dev; prmd->pd.detach_dev = omap_prm_domain_detach_dev; + prmd->pd.flags = GENPD_FLAG_PM_CLK; pm_genpd_init(&prmd->pd, NULL, true); error = of_genpd_add_provider_simple(np, &prmd->pd); From patchwork Mon Oct 26 11:10:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11856705 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 30310697 for ; Mon, 26 Oct 2020 11:12:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1BEF022277 for ; Mon, 26 Oct 2020 11:12:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1773231AbgJZLMM (ORCPT ); Mon, 26 Oct 2020 07:12:12 -0400 Received: from muru.com ([72.249.23.125]:46594 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1773168AbgJZLLY (ORCPT ); Mon, 26 Oct 2020 07:11:24 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 5851E81A0; Mon, 26 Oct 2020 11:11:26 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: "Andrew F . Davis" , Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Grygorii Strashko , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Santosh Shilimkar , Bjorn Andersson , Michael Turquette , Philipp Zabel , Stephen Boyd , linux-clk@vger.kernel.org, linux-remoteproc@vger.kernel.org Subject: [PATCH 7/9] soc: ti: omap-prm: am3: add genpd support for remaining PRM instances Date: Mon, 26 Oct 2020 13:10:47 +0200 Message-Id: <20201026111049.54835-8-tony@atomide.com> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201026111049.54835-1-tony@atomide.com> References: <20201026111049.54835-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org From: Tero Kristo Add genpd support for per, wkup, mpu, rtc and cefuse instances. Cc: Santosh Shilimkar Signed-off-by: Tero Kristo Signed-off-by: Tony Lindgren --- drivers/soc/ti/omap_prm.c | 36 +++++++++++++++++++++++++++++++++--- 1 file changed, 33 insertions(+), 3 deletions(-) diff --git a/drivers/soc/ti/omap_prm.c b/drivers/soc/ti/omap_prm.c --- a/drivers/soc/ti/omap_prm.c +++ b/drivers/soc/ti/omap_prm.c @@ -123,6 +123,10 @@ static const struct omap_prm_domain_map omap_prm_onoff_noauto = { .statechange = 1, }; +static const struct omap_prm_domain_map omap_prm_alwon = { + .usable_modes = BIT(OMAP_PRMD_ON_ACTIVE), +}; + static const struct omap_rst_map rst_map_0[] = { { .rst = 0, .st = 0 }, { .rst = -1 }, @@ -189,14 +193,40 @@ static const struct omap_rst_map am3_wkup_rst_map[] = { }; static const struct omap_prm_data am3_prm_data[] = { - { .name = "per", .base = 0x44e00c00, .rstctrl = 0x0, .rstmap = am3_per_rst_map, .flags = OMAP_PRM_HAS_RSTCTRL, .clkdm_name = "pruss_ocp" }, - { .name = "wkup", .base = 0x44e00d00, .rstctrl = 0x0, .rstst = 0xc, .rstmap = am3_wkup_rst_map, .flags = OMAP_PRM_HAS_RSTCTRL | OMAP_PRM_HAS_NO_CLKDM }, - { .name = "device", .base = 0x44e00f00, .rstctrl = 0x0, .rstst = 0x8, .rstmap = rst_map_01, .flags = OMAP_PRM_HAS_RSTCTRL | OMAP_PRM_HAS_NO_CLKDM }, + { + .name = "per", .base = 0x44e00c00, + .pwrstctrl = 0xc, .pwrstst = 0x8, .dmap = &omap_prm_noinact, + .rstctrl = 0x0, .rstmap = am3_per_rst_map, + .flags = OMAP_PRM_HAS_RSTCTRL, .clkdm_name = "pruss_ocp" + }, + { + .name = "wkup", .base = 0x44e00d00, + .pwrstctrl = 0x4, .pwrstst = 0x4, .dmap = &omap_prm_alwon, + .rstctrl = 0x0, .rstst = 0xc, .rstmap = am3_wkup_rst_map, + .flags = OMAP_PRM_HAS_RSTCTRL | OMAP_PRM_HAS_NO_CLKDM + }, + { + .name = "mpu", .base = 0x44e00e00, + .pwrstctrl = 0x0, .pwrstst = 0x4, .dmap = &omap_prm_noinact, + }, + { + .name = "device", .base = 0x44e00f00, + .rstctrl = 0x0, .rstst = 0x8, .rstmap = rst_map_01, + .flags = OMAP_PRM_HAS_RSTCTRL | OMAP_PRM_HAS_NO_CLKDM + }, + { + .name = "rtc", .base = 0x44e01000, + .pwrstctrl = 0x0, .pwrstst = 0x4, .dmap = &omap_prm_alwon, + }, { .name = "gfx", .base = 0x44e01100, .pwrstctrl = 0, .pwrstst = 0x10, .dmap = &omap_prm_noinact, .rstctrl = 0x4, .rstst = 0x14, .rstmap = rst_map_0, .clkdm_name = "gfx_l3", }, + { + .name = "cefuse", .base = 0x44e01200, + .pwrstctrl = 0x0, .pwrstst = 0x4, .dmap = &omap_prm_onoff_noauto, + }, { }, }; From patchwork Mon Oct 26 11:10:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11856685 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6DDBF1130 for ; Mon, 26 Oct 2020 11:11:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5A5F922263 for ; Mon, 26 Oct 2020 11:11:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1773183AbgJZLL3 (ORCPT ); Mon, 26 Oct 2020 07:11:29 -0400 Received: from muru.com ([72.249.23.125]:46618 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1773179AbgJZLL3 (ORCPT ); Mon, 26 Oct 2020 07:11:29 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 646A28196; Mon, 26 Oct 2020 11:11:30 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: "Andrew F . Davis" , Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Grygorii Strashko , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Santosh Shilimkar , Bjorn Andersson , Michael Turquette , Philipp Zabel , Stephen Boyd , linux-clk@vger.kernel.org, linux-remoteproc@vger.kernel.org Subject: [PATCH 8/9] soc: ti: pm33xx: Enable basic PM runtime support for genpd Date: Mon, 26 Oct 2020 13:10:48 +0200 Message-Id: <20201026111049.54835-9-tony@atomide.com> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201026111049.54835-1-tony@atomide.com> References: <20201026111049.54835-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org To prepare for moving to use genpd, let's enable basic PM runtime support. Cc: Dave Gerlach Cc: Santosh Shilimkar Cc: Suman Anna Signed-off-by: Tony Lindgren --- drivers/soc/ti/pm33xx.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/soc/ti/pm33xx.c b/drivers/soc/ti/pm33xx.c --- a/drivers/soc/ti/pm33xx.c +++ b/drivers/soc/ti/pm33xx.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -555,16 +556,26 @@ static int am33xx_pm_probe(struct platform_device *pdev) suspend_wfi_flags |= WFI_FLAG_WAKE_M3; #endif /* CONFIG_SUSPEND */ + pm_runtime_enable(dev); + ret = pm_runtime_get_sync(dev); + if (ret < 0) { + pm_runtime_put_noidle(dev); + goto err_pm_runtime_disable; + } + ret = pm_ops->init(am33xx_do_sram_idle); if (ret) { dev_err(dev, "Unable to call core pm init!\n"); ret = -ENODEV; - goto err_put_wkup_m3_ipc; + goto err_pm_runtime_put; } return 0; -err_put_wkup_m3_ipc: +err_pm_runtime_put: + pm_runtime_put_sync(dev); +err_pm_runtime_disable: + pm_runtime_disable(dev); wkup_m3_ipc_put(m3_ipc); err_free_sram: am33xx_pm_free_sram(); @@ -574,6 +585,8 @@ static int am33xx_pm_probe(struct platform_device *pdev) static int am33xx_pm_remove(struct platform_device *pdev) { + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); if (pm_ops->deinit) pm_ops->deinit(); suspend_set_ops(NULL); From patchwork Mon Oct 26 11:10:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11856691 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5F5FD1130 for ; Mon, 26 Oct 2020 11:11:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 471FE2224A for ; Mon, 26 Oct 2020 11:11:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1773202AbgJZLLl (ORCPT ); Mon, 26 Oct 2020 07:11:41 -0400 Received: from muru.com ([72.249.23.125]:46626 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1773189AbgJZLLd (ORCPT ); Mon, 26 Oct 2020 07:11:33 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 68F4281A0; Mon, 26 Oct 2020 11:11:34 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: "Andrew F . Davis" , Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Grygorii Strashko , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-remoteproc@vger.kernel.org, Bjorn Andersson , Philipp Zabel , Michael Turquette , Santosh Shilimkar , Stephen Boyd , linux-clk@vger.kernel.org Subject: [PATCH 9/9] remoteproc/wkup_m3: Use reset control driver if available Date: Mon, 26 Oct 2020 13:10:49 +0200 Message-Id: <20201026111049.54835-10-tony@atomide.com> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201026111049.54835-1-tony@atomide.com> References: <20201026111049.54835-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org In order to move wkup_m3 to probe without platform data, let's add support for using optional reset control driver if configured in the dts. With this change and the related dts change, we can start dropping the platform data for am335x. And once wkup_m3 no longer needs platform data, we can simply drop the related legacy reset platform data callbacks from wkup_m3 driver later on after also am437x no longer depends on it. Cc: linux-remoteproc@vger.kernel.org Cc: Bjorn Andersson Cc: Dave Gerlach Cc: Philipp Zabel Cc: Suman Anna Signed-off-by: Tony Lindgren --- Please review and ack if no issues. If you guys instead want to set up an immutable remoteproc branch with just this patch in it against v5.10-rc1 that works too :) --- drivers/remoteproc/wkup_m3_rproc.c | 28 +++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) diff --git a/drivers/remoteproc/wkup_m3_rproc.c b/drivers/remoteproc/wkup_m3_rproc.c --- a/drivers/remoteproc/wkup_m3_rproc.c +++ b/drivers/remoteproc/wkup_m3_rproc.c @@ -17,6 +17,7 @@ #include #include #include +#include #include @@ -43,11 +44,13 @@ struct wkup_m3_mem { * @rproc: rproc handle * @pdev: pointer to platform device * @mem: WkupM3 memory information + * @rsts: reset control */ struct wkup_m3_rproc { struct rproc *rproc; struct platform_device *pdev; struct wkup_m3_mem mem[WKUPM3_MEM_MAX]; + struct reset_control *rsts; }; static int wkup_m3_rproc_start(struct rproc *rproc) @@ -57,6 +60,9 @@ static int wkup_m3_rproc_start(struct rproc *rproc) struct device *dev = &pdev->dev; struct wkup_m3_platform_data *pdata = dev_get_platdata(dev); + if (wkupm3->rsts) + return reset_control_deassert(wkupm3->rsts); + if (pdata->deassert_reset(pdev, pdata->reset_name)) { dev_err(dev, "Unable to reset wkup_m3!\n"); return -ENODEV; @@ -72,6 +78,9 @@ static int wkup_m3_rproc_stop(struct rproc *rproc) struct device *dev = &pdev->dev; struct wkup_m3_platform_data *pdata = dev_get_platdata(dev); + if (wkupm3->rsts) + return reset_control_assert(wkupm3->rsts); + if (pdata->assert_reset(pdev, pdata->reset_name)) { dev_err(dev, "Unable to assert reset of wkup_m3!\n"); return -ENODEV; @@ -132,12 +141,6 @@ static int wkup_m3_rproc_probe(struct platform_device *pdev) int ret; int i; - if (!(pdata && pdata->deassert_reset && pdata->assert_reset && - pdata->reset_name)) { - dev_err(dev, "Platform data missing!\n"); - return -ENODEV; - } - ret = of_property_read_string(dev->of_node, "ti,pm-firmware", &fw_name); if (ret) { @@ -165,6 +168,17 @@ static int wkup_m3_rproc_probe(struct platform_device *pdev) wkupm3->rproc = rproc; wkupm3->pdev = pdev; + wkupm3->rsts = devm_reset_control_get_optional_shared(dev, "rstctrl"); + if (PTR_ERR_OR_ZERO(wkupm3->rsts)) { + if (!(pdata && pdata->deassert_reset && pdata->assert_reset && + pdata->reset_name)) { + dev_err(dev, "Platform data missing!\n"); + ret = -ENODEV; + goto err_put_rproc; + } + wkupm3->rsts = NULL; + } + for (i = 0; i < ARRAY_SIZE(mem_names); i++) { res = platform_get_resource_byname(pdev, IORESOURCE_MEM, mem_names[i]); @@ -173,7 +187,7 @@ static int wkup_m3_rproc_probe(struct platform_device *pdev) dev_err(&pdev->dev, "devm_ioremap_resource failed for resource %d\n", i); ret = PTR_ERR(wkupm3->mem[i].cpu_addr); - goto err; + goto err_put_rproc; } wkupm3->mem[i].bus_addr = res->start; wkupm3->mem[i].size = resource_size(res);