From: Dmitry Osipenko <digetx@gmail.com> To: Thierry Reding <thierry.reding@gmail.com>, Jonathan Hunter <jonathanh@nvidia.com>, Georgi Djakov <georgi.djakov@linaro.org>, Rob Herring <robh+dt@kernel.org>, Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org>, Peter De Schrijver <pdeschrijver@nvidia.com>, MyungJoo Ham <myungjoo.ham@samsung.com>, Kyungmin Park <kyungmin.park@samsung.com>, Chanwoo Choi <cw00.choi@samsung.com>, Mikko Perttunen <cyndis@kapsi.fi>, Viresh Kumar <vireshk@kernel.org>, Peter Geis <pgwipeout@gmail.com>, Nicolas Chauvet <kwizart@gmail.com>, Krzysztof Kozlowski <krzk@kernel.org> Cc: linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v10 02/19] memory: tegra20: Support hardware versioning and clean up OPP table initialization Date: Mon, 23 Nov 2020 03:27:06 +0300 [thread overview] Message-ID: <20201123002723.28463-3-digetx@gmail.com> (raw) In-Reply-To: <20201123002723.28463-1-digetx@gmail.com> Support hardware versioning, which is now required for Tegra20 EMC OPP. Clean up OPP table initialization by using a error code returned by OPP API for judging about the OPP table presence in a device-tree and remove OPP regulator initialization because we're now going to use power domain instead of a raw regulator. This puts Tegra20 EMC OPP preparation on par with the Tegra30/124 EMC drivers. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- drivers/memory/tegra/tegra20-emc.c | 48 +++++++++++++----------------- 1 file changed, 20 insertions(+), 28 deletions(-) diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c index 0320d9df4a20..686aaf477d8a 100644 --- a/drivers/memory/tegra/tegra20-emc.c +++ b/drivers/memory/tegra/tegra20-emc.c @@ -910,43 +910,36 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc) static int tegra_emc_opp_table_init(struct tegra_emc *emc) { - struct opp_table *reg_opp_table = NULL, *clk_opp_table; - const char *rname = "core"; + u32 hw_version = BIT(tegra_sku_info.soc_process_id); + struct opp_table *clk_opp_table, *hw_opp_table; int err; - /* - * Legacy device-trees don't have OPP table and EMC driver isn't - * useful in this case. - */ - if (!device_property_present(emc->dev, "operating-points-v2")) { - dev_err(emc->dev, - "OPP table not found, please update your device tree\n"); - return -ENODEV; - } - - /* voltage scaling is optional */ - if (device_property_present(emc->dev, "core-supply")) { - reg_opp_table = dev_pm_opp_set_regulators(emc->dev, &rname, 1); - if (IS_ERR(reg_opp_table)) - return dev_err_probe(emc->dev, PTR_ERR(reg_opp_table), - "failed to set OPP regulator\n"); - } - clk_opp_table = dev_pm_opp_set_clkname(emc->dev, NULL); err = PTR_ERR_OR_ZERO(clk_opp_table); if (err) { dev_err(emc->dev, "failed to set OPP clk: %d\n", err); - goto put_reg_table; + return err; } - err = dev_pm_opp_of_add_table(emc->dev); + hw_opp_table = dev_pm_opp_set_supported_hw(emc->dev, &hw_version, 1); + err = PTR_ERR_OR_ZERO(hw_opp_table); if (err) { - dev_err(emc->dev, "failed to add OPP table: %d\n", err); + dev_err(emc->dev, "failed to set OPP supported HW: %d\n", err); goto put_clk_table; } - dev_info(emc->dev, "current clock rate %lu MHz\n", - clk_get_rate(emc->clk) / 1000000); + err = dev_pm_opp_of_add_table(emc->dev); + if (err) { + if (err == -ENODEV) + dev_err(emc->dev, "OPP table not found, please update your device tree\n"); + else + dev_err(emc->dev, "failed to add OPP table: %d\n", err); + + goto put_hw_table; + } + + dev_info(emc->dev, "OPP HW ver. 0x%x, current clock rate %lu MHz\n", + hw_version, clk_get_rate(emc->clk) / 1000000); /* first dummy rate-set initializes voltage state */ err = dev_pm_opp_set_rate(emc->dev, clk_get_rate(emc->clk)); @@ -959,11 +952,10 @@ static int tegra_emc_opp_table_init(struct tegra_emc *emc) remove_table: dev_pm_opp_of_remove_table(emc->dev); +put_hw_table: + dev_pm_opp_put_supported_hw(hw_opp_table); put_clk_table: dev_pm_opp_put_clkname(clk_opp_table); -put_reg_table: - if (reg_opp_table) - dev_pm_opp_put_regulators(reg_opp_table); return err; } -- 2.29.2
WARNING: multiple messages have this Message-ID (diff)
From: Dmitry Osipenko <digetx@gmail.com> To: Thierry Reding <thierry.reding@gmail.com>, Jonathan Hunter <jonathanh@nvidia.com>, Georgi Djakov <georgi.djakov@linaro.org>, Rob Herring <robh+dt@kernel.org>, Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org>, Peter De Schrijver <pdeschrijver@nvidia.com>, MyungJoo Ham <myungjoo.ham@samsung.com>, Kyungmin Park <kyungmin.park@samsung.com>, Chanwoo Choi <cw00.choi@samsung.com>, Mikko Perttunen <cyndis@kapsi.fi>, Viresh Kumar <vireshk@kernel.org>, Peter Geis <pgwipeout@gmail.com>, Nicolas Chauvet <kwizart@gmail.com>, Krzysztof Kozlowski <krzk@kernel.org> Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-pm@vger.kernel.org Subject: [PATCH v10 02/19] memory: tegra20: Support hardware versioning and clean up OPP table initialization Date: Mon, 23 Nov 2020 03:27:06 +0300 [thread overview] Message-ID: <20201123002723.28463-3-digetx@gmail.com> (raw) In-Reply-To: <20201123002723.28463-1-digetx@gmail.com> Support hardware versioning, which is now required for Tegra20 EMC OPP. Clean up OPP table initialization by using a error code returned by OPP API for judging about the OPP table presence in a device-tree and remove OPP regulator initialization because we're now going to use power domain instead of a raw regulator. This puts Tegra20 EMC OPP preparation on par with the Tegra30/124 EMC drivers. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- drivers/memory/tegra/tegra20-emc.c | 48 +++++++++++++----------------- 1 file changed, 20 insertions(+), 28 deletions(-) diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c index 0320d9df4a20..686aaf477d8a 100644 --- a/drivers/memory/tegra/tegra20-emc.c +++ b/drivers/memory/tegra/tegra20-emc.c @@ -910,43 +910,36 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc) static int tegra_emc_opp_table_init(struct tegra_emc *emc) { - struct opp_table *reg_opp_table = NULL, *clk_opp_table; - const char *rname = "core"; + u32 hw_version = BIT(tegra_sku_info.soc_process_id); + struct opp_table *clk_opp_table, *hw_opp_table; int err; - /* - * Legacy device-trees don't have OPP table and EMC driver isn't - * useful in this case. - */ - if (!device_property_present(emc->dev, "operating-points-v2")) { - dev_err(emc->dev, - "OPP table not found, please update your device tree\n"); - return -ENODEV; - } - - /* voltage scaling is optional */ - if (device_property_present(emc->dev, "core-supply")) { - reg_opp_table = dev_pm_opp_set_regulators(emc->dev, &rname, 1); - if (IS_ERR(reg_opp_table)) - return dev_err_probe(emc->dev, PTR_ERR(reg_opp_table), - "failed to set OPP regulator\n"); - } - clk_opp_table = dev_pm_opp_set_clkname(emc->dev, NULL); err = PTR_ERR_OR_ZERO(clk_opp_table); if (err) { dev_err(emc->dev, "failed to set OPP clk: %d\n", err); - goto put_reg_table; + return err; } - err = dev_pm_opp_of_add_table(emc->dev); + hw_opp_table = dev_pm_opp_set_supported_hw(emc->dev, &hw_version, 1); + err = PTR_ERR_OR_ZERO(hw_opp_table); if (err) { - dev_err(emc->dev, "failed to add OPP table: %d\n", err); + dev_err(emc->dev, "failed to set OPP supported HW: %d\n", err); goto put_clk_table; } - dev_info(emc->dev, "current clock rate %lu MHz\n", - clk_get_rate(emc->clk) / 1000000); + err = dev_pm_opp_of_add_table(emc->dev); + if (err) { + if (err == -ENODEV) + dev_err(emc->dev, "OPP table not found, please update your device tree\n"); + else + dev_err(emc->dev, "failed to add OPP table: %d\n", err); + + goto put_hw_table; + } + + dev_info(emc->dev, "OPP HW ver. 0x%x, current clock rate %lu MHz\n", + hw_version, clk_get_rate(emc->clk) / 1000000); /* first dummy rate-set initializes voltage state */ err = dev_pm_opp_set_rate(emc->dev, clk_get_rate(emc->clk)); @@ -959,11 +952,10 @@ static int tegra_emc_opp_table_init(struct tegra_emc *emc) remove_table: dev_pm_opp_of_remove_table(emc->dev); +put_hw_table: + dev_pm_opp_put_supported_hw(hw_opp_table); put_clk_table: dev_pm_opp_put_clkname(clk_opp_table); -put_reg_table: - if (reg_opp_table) - dev_pm_opp_put_regulators(reg_opp_table); return err; } -- 2.29.2 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2020-11-23 0:32 UTC|newest] Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <CGME20201123003254epcas1p1763e1ce693d7cb8e2f20d521e701ad5f@epcas1p1.samsung.com> 2020-11-23 0:27 ` [PATCH v10 00/19] Introduce memory interconnect for NVIDIA Tegra SoCs Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 01/19] dt-bindings: memory: tegra20: emc: Document opp-supported-hw property Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-30 9:48 ` Georgi Djakov 2020-11-30 9:48 ` Georgi Djakov 2020-11-30 18:23 ` Krzysztof Kozlowski 2020-11-30 18:23 ` Krzysztof Kozlowski 2020-11-30 20:03 ` Dmitry Osipenko 2020-11-30 20:03 ` Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko [this message] 2020-11-23 0:27 ` [PATCH v10 02/19] memory: tegra20: Support hardware versioning and clean up OPP table initialization Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 03/19] memory: tegra30: Support interconnect framework Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 6:32 ` Georgi Djakov 2020-11-23 6:32 ` Georgi Djakov 2020-11-23 12:14 ` Dmitry Osipenko 2020-11-23 12:14 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 04/19] memory: tegra124-emc: Make driver modular Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 05/19] memory: tegra124-emc: Continue probing if timings are missing in device-tree Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 06/19] memory: tegra124: Support interconnect framework Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 6:33 ` Georgi Djakov 2020-11-23 6:33 ` Georgi Djakov 2020-11-23 0:27 ` [PATCH v10 07/19] drm/tegra: dc: Support memory bandwidth management Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 08/19] drm/tegra: dc: Extend debug stats with total number of events Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 09/19] PM / devfreq: tegra30: Support interconnect and OPPs from device-tree Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 7:02 ` Chanwoo Choi 2020-11-23 7:02 ` Chanwoo Choi 2020-11-23 12:14 ` Dmitry Osipenko 2020-11-23 12:14 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 10/19] PM / devfreq: tegra30: Separate configurations per-SoC generation Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 11/19] PM / devfreq: tegra20: Deprecate in a favor of emc-stat based driver Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 7:02 ` Chanwoo Choi 2020-11-23 7:02 ` Chanwoo Choi 2020-11-23 0:27 ` [PATCH v10 12/19] ARM: tegra: Correct EMC registers size in Tegra20 device-tree Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 13/19] ARM: tegra: Add interconnect properties to " Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 14/19] ARM: tegra: Add interconnect properties to Tegra30 device-tree Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 15/19] ARM: tegra: Add interconnect properties to Tegra124 device-tree Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 16/19] ARM: tegra: Add nvidia,memory-controller phandle to Tegra20 EMC device-tree Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 16/19] ARM: tegra: Add nvidia, memory-controller " Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 17/19] ARM: tegra: Add EMC OPP properties to Tegra20 device-trees Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-30 21:17 ` Jon Hunter 2020-11-30 21:17 ` Jon Hunter 2020-11-30 22:57 ` Dmitry Osipenko 2020-11-30 22:57 ` Dmitry Osipenko 2020-12-01 20:42 ` Jon Hunter 2020-12-01 20:42 ` Jon Hunter 2020-12-04 15:54 ` Thierry Reding 2020-12-04 15:54 ` Thierry Reding 2020-12-05 13:52 ` Krzysztof Kozlowski 2020-12-05 13:52 ` Krzysztof Kozlowski 2020-11-23 0:27 ` [PATCH v10 18/19] ARM: tegra: Add EMC OPP and ICC properties to Tegra30 EMC and ACTMON device-tree nodes Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 0:27 ` [PATCH v10 19/19] ARM: tegra: Add EMC OPP and ICC properties to Tegra124 " Dmitry Osipenko 2020-11-23 0:27 ` Dmitry Osipenko 2020-11-23 6:17 ` [PATCH v10 00/19] Introduce memory interconnect for NVIDIA Tegra SoCs Viresh Kumar 2020-11-23 6:17 ` Viresh Kumar 2020-11-23 12:13 ` Dmitry Osipenko 2020-11-23 12:13 ` Dmitry Osipenko 2020-11-30 8:44 ` Chanwoo Choi 2020-11-30 8:44 ` Chanwoo Choi 2020-11-30 8:36 ` Krzysztof Kozlowski 2020-11-30 8:36 ` Krzysztof Kozlowski 2020-11-30 8:59 ` Chanwoo Choi 2020-11-30 8:59 ` Chanwoo Choi
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